Готові списки джерел за темами / Machining, modelling, sustainable manufacturing

Добірка наукової літератури з теми "Machining, modelling, sustainable manufacturing"

Автор: Grafiati
Опубліковано: 14 березня 2023

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Статті в журналах з теми "Machining, modelling, sustainable manufacturing"

1

Celent, Luka, Dražen Bajić, Sonja Jozić, and Marko Mladineo. "Hard Milling Process Based on Compressed Cold Air-Cooling Using Vortex Tube for Sustainable and Smart Manufacturing." Machines 11, no. 2 (February 10, 2023): 264. http://dx.doi.org/10.3390/machines11020264.

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Анотація:
Improving machining performance and meeting the requirements of sustainable production at the same time represents a major challenge for the metalworking industry and scientific community. One approach to satisfying the above challenge is to apply different types of cutting fluids or to optimise their usage during the machining process. The fact that cutting fluids are well known as significant environmental pollutants in the metalworking industry has encouraged researchers to discover new environmentally friendly ways of cooling and lubricating in the machining process. Therefore, the main goal is to investigate the influence of different machining conditions on the efficiency of hard machining and find a sustainable solution towards smart manufacturing. In the experimental part of the work, the influence of various machining parameters and conditions on the efficiency of the process was investigated and measured through the surface roughness, tool wear and cutting force components. Statistical data processing was carried out, and predictive mathematical models were developed. An important achievement is the knowledge of the efficiency of compressed cold air cooling for hard milling with the resulting lowest average flank wear of 0.05 mm, average surface roughness of 0.28 µm, which corresponds to grinding procedure roughness classes of N4 and N5, and average tool durability increase of 26% compared to dry cutting and conventional use of cutting fluids. Becoming a smart machining system was assured via technological improvement achieved through the reliable prediction of tool wear obtained by radial basis neural networks modelling, with a relative prediction error of 3.97%.
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2

Niamat, Misbah, Shoaib Sarfraz, Wasim Ahmad, Essam Shehab, and Konstantinos Salonitis. "Parametric Modelling and Multi-Objective Optimization of Electro Discharge Machining Process Parameters for Sustainable Production." Energies 13, no. 1 (December 19, 2019): 38. http://dx.doi.org/10.3390/en13010038.

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Анотація:
Electro Discharge Machining (EDM) can be an element of a sustainable manufacturing system. In the present study, the sustainability implications of EDM of special-purpose steels are investigated. The machining quality (minimum surface roughness), productivity (material removal rate) improvement and cost (electrode wear rate) minimization are considered. The influence and correlation of the three most important machining parameters including pulse on time, current and pulse off time have been investigated on sustainable production. Empirical models have been established based on response surface methodology for material removal rate, electrode wear rate and surface roughness. The investigation, validation and deeper insights of developed models have been performed using ANOVA, validation experiments and microstructure analysis respectively. Pulse on time and current both appeared as the prominent process parameters having a significant influence on all three measured performance metrics. Multi-objective optimization has been performed in order to achieve sustainability by establishing a compromise between minimum quality, minimum cost and maximum productivity. Sustainability contour plots have been developed to select suitable desirability. The sustainability results indicated that a high level of 75.5% sustainable desirability can be achieved for AISI L3 tool steel. The developed models can be practiced on the shop floor practically to attain a certain desirability appropriate for particular machine limits.
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Mohd Zakaria, Muhammad Akmal, Raja Izamshah Raja Abdullah, Mohd Shahir Kasim, and Mohamad Halim Ibrahim. "Enhancing the Productivity of Wire Electrical Discharge Machining Toward Sustainable Production by using Artificial Neural Network Modelling." EMITTER International Journal of Engineering Technology 7, no. 1 (June 15, 2019): 261–74. http://dx.doi.org/10.24003/emitter.v7i1.365.

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Анотація:
Sustainability plays an important role in manufacturing industries through economically-sound processes that able to minimize negative environmental impacts while having the social benefits. In this present study, the modeling of wire electrical discharge machining (WEDM) cutting process using an artificial neural network (ANN) for prediction has been carried out with a focus on sustainable production. The objective was to develop an ANN model for prediction of two sustainable measures which were material removal rate (as an economic aspect) and surface roughness (as a social aspect) of titanium alloy with ten input parameters. By concerning environmental pollution due to its intrinsic characteristics such as liquid wastes, the water-based dielectric fluid has been used in this study which represents an environmental aspect in sustainability. For this purpose, a feed-forward backpropagation ANN was developed and trained using the minimal experimental data. The other empirical modelling techniques (statistics based) are less in flexibility and prediction accuracy. The minimal, vague data and nonlinear complex input-output relationship make this ANN model simple and perfects method in the manufacturing environment as well as in this study. The results showed good agreement with the experimental data confirming the effectiveness of the ANN approach in the modeling of material removal rate and surface roughness of this cutting process.
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4

Singh, Karmjit, and Ibrahim Sultan. "A Computer-Aided Sustainable Modelling and Optimization Analysis of CNC Milling and Turning Processes." Journal of Manufacturing and Materials Processing 2, no. 4 (September 27, 2018): 65. http://dx.doi.org/10.3390/jmmp2040065.

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Анотація:
The sustainability of a manufacturing process can be measured by three main factors which impact both ecological and financial constraints. These factors are the energy required to achieve a specific job, the material utilized for the job, and the time taken to complete that job. These factors have to be quantified and analysed so that a proper manufacturing system can be designed to optimize process sustainability. For this purpose, a computer package, which utilizes life cycle inventory models has been presented for CNC (Computer Numerical Control) milling and turning processes. Based on utilization of resources and production stages, the job completion time for the turning and milling processes can be divided into process (i.e., machining), idle and basic times. As parameters are different for evaluating the process times, i.e., depth and width of cut in case of milling, initial and final diameters for turning, two different case studies are presented, one for each process. The effect of material selection on the sustainability factors has been studied for different processes. Our simulations show that highly dense and hard materials take more time in finishing the job due to low cutting speed and feed rates as compared to soft materials. In addition, face milling takes longer and consumes more power as compared to peripheral milling due to more retraction time caused by over travel distance and lower vertical transverse speeds than the horizontal transverse speed used in a peripheral retraction process.
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Del Sol, Irene, Álvaro Domínguez Calvo, David Piñero, Jorge Salguero, and Moises Batista. "Study of the FDM Parameters of the ABS Parts in the Surface Quality after Machining Operations." Key Engineering Materials 813 (July 2019): 203–8. http://dx.doi.org/10.4028/www.scientific.net/kem.813.203.

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Анотація:
Additive Manufacturing (AM) is one of the Key Enabling Technologies (KET’s) in Industry 4.0. One of the most worldwide used technologies is Fussed Deposition Modelling (FDM), a technology commonly used for domestic purposes. However, it could become a profitable option for industrial applications such as protections parts, flexible clamping systems or large volume parts. One of the issues that keeps this technology away from the mainstream industry is the lack of dimensional accuracy and the appearance of layer deposition defects that are produced as a consequence of the nature of the process. Those defects are usually reduced using chemicals post treatments. However, this option considerably increases the cost of the part as well as it environmental impact for big size parts. This work studied machining procedures as sustainable post-operation in order to reduce FDM dimensional and superficial defects. For this purpose, Acrylonitrile-Butadiene-Styrene (ABS) parts produced by FDM were machined using different machining strategies. Parts were perimetral milled using up milling and down milling strategies and finally a face milling operation was performed. The relationship between the layer height and the directionality of the layers in machining results was analyzed, in terms of surface quality (Ra, Rz, Rsm) and dimensional accuracy. Rz and Rsm results had been analyzed to verify that the grooves produced in FDM process disappeared. Ra values were reduced by up to ten times after milling process. Dimensional accuracy is increased by up to 50% while the removed rate was kept in a maximum of 7%. Additionally, removed material can be reused by means of proper chip extraction system, favoring the performance of the resources.
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Liu, Guoliang, Tuğrul Özel, Jianming Li, Dexiang Wang, and Shufeng Sun. "Optimization and fabrication of curvilinear micro-grooved cutting tools for sustainable machining based on finite element modelling of the cutting process." International Journal of Advanced Manufacturing Technology 110, no. 5-6 (August 23, 2020): 1327–38. http://dx.doi.org/10.1007/s00170-020-05906-6.

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Rizzo, Antonella, Saurav Goel, Maria Luisa Grilli, Roberto Iglesias, Lucyna Jaworska, Vjaceslavs Lapkovskis, Pavel Novak, Bogdan O. Postolnyi, and Daniele Valerini. "The Critical Raw Materials in Cutting Tools for Machining Applications: A Review." Materials 13, no. 6 (March 18, 2020): 1377. http://dx.doi.org/10.3390/ma13061377.

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Анотація:
A variety of cutting tool materials are used for the contact mode mechanical machining of components under extreme conditions of stress, temperature and/or corrosion, including operations such as drilling, milling turning and so on. These demanding conditions impose a seriously high strain rate (an order of magnitude higher than forming), and this limits the useful life of cutting tools, especially single-point cutting tools. Tungsten carbide is the most popularly used cutting tool material, and unfortunately its main ingredients of W and Co are at high risk in terms of material supply and are listed among critical raw materials (CRMs) for EU, for which sustainable use should be addressed. This paper highlights the evolution and the trend of use of CRMs) in cutting tools for mechanical machining through a timely review. The focus of this review and its motivation was driven by the four following themes: (i) the discussion of newly emerging hybrid machining processes offering performance enhancements and longevity in terms of tool life (laser and cryogenic incorporation); (ii) the development and synthesis of new CRM substitutes to minimise the use of tungsten; (iii) the improvement of the recycling of worn tools; and (iv) the accelerated use of modelling and simulation to design long-lasting tools in the Industry-4.0 framework, circular economy and cyber secure manufacturing. It may be noted that the scope of this paper is not to represent a completely exhaustive document concerning cutting tools for mechanical processing, but to raise awareness and pave the way for innovative thinking on the use of critical materials in mechanical processing tools with the aim of developing smart, timely control strategies and mitigation measures to suppress the use of CRMs.
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SHARMA, RAJEEV, Binit Kumar Jha, and Vipin Pahuja. "ROLE OF SUSTAINABLE TECHNIQUES IN MANUFACTURING PROCESS: A REVIEW." International Journal of Engineering Technologies and Management Research 8, no. 2 (February 17, 2021): 41–45. http://dx.doi.org/10.29121/ijetmr.v8.i2.2021.869.

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Анотація:
Customary mineral based liquids are as a rule broadly utilized in cooling and greases in machining activities. Nonetheless, these cutting liquids are the suitable wellspring of numerous natural and organic issues. To kill the evil impacts related with cutting liquids, it is important to move towards practical machining methods. Such sustainable machining techniques utilize minimize the amount of cutting liquid, fluid nitrogen, vegetable oil or packed air as a cooling-oil medium. The liquids utilized in economical machining strategies are viewed as absolutely biodegradable and Eco-friendly. This paper is a careful survey of the relative multitude of current environmental friendly machining methods as of now rehearsed in the metal cutting cycle. It has been likewise discovered that these economical machining strategies more often than not give better outcomes as far as improved surface nature of the machined part, upgraded apparatus life, less cutting temperatures and slicing powers when contrasted with traditional wet machining techniques. The principle motivation behind this survey work is to recognize the diverse supportable strategies and empower the utilization of such procedures in metal machining, so that, the reducing interaction turns out to be more expense powerful and climate inviting.
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Liu, Pei Ling. "Towards Smart and Competitive Sustainable Machining." Key Engineering Materials 447-448 (September 2010): 301–5. http://dx.doi.org/10.4028/www.scientific.net/kem.447-448.301.

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Анотація:
Computer Numeric Control (CNC) revolutionized the machining technology and has been the cutting edge of digital manufacturing since 1950s. CNC machining model, simulation, verification, and optimization have been a vivid research topic of Smart Machining that automated the CNC programming (CAM) and cutting process, hence greatly increased machining productivity since 1990s. This paper traces back the history of CNC simulation, analysis the different CNC machining models, tested with application examples, and listed different CNC verification industry applications for the last 20 years. The new challenge comes from sustainable manufacturing. Towards smart and competitive sustainable machining, CNC model and simulation will be used to optimize the machining process, where the raw material could be saved through First Part Correct technology, the energy could be saved through cutting speed optimization, and used parts could be saved by remanufacturing.
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Farooqi, Awais, and Nukman bin Yusoff. "Green Manufacturing - Textured Novel Cutting Tool for Sustainable Machining: A Review." Applied Mechanics and Materials 899 (June 2020): 135–43. http://dx.doi.org/10.4028/www.scientific.net/amm.899.135.

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Анотація:
Green manufacturing concept has become a cutting edge in the field of sustainable machining. The prime objective of the philosophy is to find a technique in machining or material removal processes that are environmentally friendly, with minimal wastage, energy efficient and optimal condition for the machining processes. This review paper discusses the significance of textured novel cutting tools, is one of the promising technologies and process. It discusses the Dry Machining process to capture green sustainable manufacturing practices. The study may answer of how it stands among other methods including minimum quantity lubrication and nano fluid lubricant. This paper also presents the importance of advanced manufacturing tools to match the sustainable future needs with an idea of proposed methodology to conduct a research on textured novel cutting tools for sustainable machining.
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Більше джерел

Дисертації з теми "Machining, modelling, sustainable manufacturing"

1

Dawood, Abdulhameed Alaa. "A Study on the Sustainable Machining of Titanium Alloy." TopSCHOLAR®, 2016. http://digitalcommons.wku.edu/theses/1566.

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Анотація:
Titanium and its alloy (Ti-6Al-4V) are widely used in aerospace industries because of their light weight, high specific strength, and corrosion resistance. This study conducted a comparative experimental analysis of the machinability of Ti-6Al-4V for conventional flood coolant machining and sustainable dry machining. The effect of cutting speed, feed rate, and depth of cut on machining performance has been evaluated for both conditions. The machining time and surface roughness were found to be lower in dry machining compared to flood coolant machining. The tool wear was found to be unpredictable, and no significant difference was observed for dry and coolant machining. In a comparison of all the parameters, sustainable dry machining was found to provide better performance in machining Ti-6Al-4V. This study also investigated the machinability of Ti-6Al-4V using coated and uncoated tungsten carbide tools under dry conditions. Tool wear is a serious problem in the machining of titanium alloys in dry conditions. Heat dissipation from the toolworkpiece interface a difficult challenge in dry machining, resulting in the alloying of the workpiece to the tool surface. Dry machining with the coated tool was comparatively faster, and resulted in less tool wear than uncoated tools. Using the Titanium aluminum nitride TiAlN coated carbide tool during dry machining provided a smoother surface finish with lower average surface roughness. The conclusion, therefore, is that the tool coating was found to be effective for the dry machining of titanium alloys.
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Katchasuwanmanee, Kanet. "Investigation of the energy efficient sustainable manufacturing approach and its implementation perspectives." Thesis, Brunel University, 2016. http://bura.brunel.ac.uk/handle/2438/14348.

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Анотація:
In the last two decades, energy is becoming one of the main issues in the manufacturing industry as it contributes substantially to production cost, CO2 emissions, and other destructive environmental impact. Due to rising energy costs, environmental concerns and stringent regulations, manufacturing is increasingly driven towards sustainable manufacturing which needs to address the associated environmental, social and economic aspects simultaneously. One common approach is to achieve sustainability and to implement energy-resource efficient production management systems that enable optimisation of energy consumption and resource utilisation in the production system. However, by reducing energy consumption, the product quality and production cost may be compromised. To remain competitive in the dynamic environment, the energy-efficient management system should not only concern energy consumption but also maintain product quality and production efficiency. This thesis presents a development of the Energy-smart Production Management (e-ProMan) system which provides a systematic, virtual simulation that integrates manufacturing data relating to thermal effect and correlation analysis between energy flow, work flow and data flow for the heating, ventilation and air conditioning (HVAC) system and production process. First, the e-ProMan system comprises of the multidimensional analysis between energy flow, work flow and data flow. The results showed that the product quality is significantly affected by ambient temperature in CNC precision machining. Product quality appears to be improved at lower temperatures. This research highlights the significance of ambient temperature in sustainable precision machining. Second, the simulation experiment was modelled at the production process due to it being the main source of energy consumption in manufacturing. An up-hill workload scenario was found to be the most energy and cost-efficient production processes. In other words, energy consumption, CO2 emission and total manufacturing cost could be reduced when workload capacity and operating machine increase incrementally. Moreover, the e-ProMan system was modelled and simulated using the weather forecast and real-time ambient temperature to reduce energy consumption of the HVAC system. The e-ProMan system results in less energy consumption compared to the fuzzy control system. To conclude, the e-ProMan demonstrates energy efficiency at all relevant levels in the manufacturing: machine, process and plant. For the future research, the e-ProMan system needs to be applied and validated in actual manufacturing environments.
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3

Vijayakumar, Badrinarayanan. "Numerical modelling of heat treatment and subsequent machining of a superalloy turbine disc : an integrated manufacturing modelling approach." Thesis, University of Birmingham, 2013. http://etheses.bham.ac.uk//id/eprint/4669/.

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Анотація:
The competitive and ever growing business of aerospace technology is constantly pushing for improvements in the engine efficiency to deliver high performance with lower costs and reduced environmental impact. Over the past 50 years, the Turbine Entry Temperature (TET) has been increased by more than 400˚C to deliver improved engine performance. This has mainly been made possible with the advancement of materials and manufacturing technologies alongside improvements in computational capabilities. With the temperature capabilities of new materials ever expanding to meet efficiency targets, use of modelling tools not only to predict material behaviour, but also to improve processing techniques are becoming common. An integrated approach to design and manufacturing is being heavily pursued especially by aerospace companies to help design and manufacture of components right first time. The main objectives of this research are twofold. Firstly, this research aims to model the development and distribution of residual stresses for two representative aerospace turbine discs made from a nickel- based superalloy U720Li after heat treatment, and predict the subsequent distortions during machining operations. Secondly, this research provides the much needed integrated manufacturing modelling approach that enables process optimisation and design of experiments based problem solving to be adapted to highly non-linear heat treatment and machining manufacturing models
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Lu, Tao. "A Metrics-based Sustainability Assessment of Cryogenic Machining Using Modeling and Optimization of Process Performance." UKnowledge, 2014. http://uknowledge.uky.edu/me_etds/47.

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Анотація:
The development of a sustainable manufacturing process requires a comprehensive evaluation method and fundamental understanding of the processes. Coolant application is a critical sustainability concern in the widely used machining process. Cryogenic machining is considered a candidate for sustainable coolant application. However, the lack of comprehensive evaluation methods leaves significant uncertainties about the overall sustainability performance of cryogenic machining. Also, the lack of practical application guidelines based on scientific understanding of the heat transfer mechanism in cryogenic machining limits the process optimization from achieving the most sustainable performance. In this dissertation, based on a proposed Process Sustainability Index (ProcSI) methodology, the sustainability performance of the cryogenic machining process is optimized with application guidelines established by scientific modeling of the heat transfer mechanism in the process. Based on the experimental results, the process optimization is carried out with Genetic Algorithm (GA). The metrics-based ProcSI method considers all three major aspects of sustainable manufacturing, namely economy, environment and society, based on the 6R concept and the total life-cycle aspect. There are sixty five metrics, categorized into six major clusters. Data for all relavant metrics are collected, normalized, weighted, and then aggregated to form the ProcSI score, as an overall judgment for the sustainability performance of the process. The ProcSI method focuses on the process design as a manufacturer’s aspect, hoping to improve the sustainability performance of the manufactured products and the manufacturing system. A heat transfer analysis of cryogenic machining for a flank-side liquid nitrogen jet delivery is carried out. This is performed by micro-scale high-speed temperature measurement experiments. The experimental results are processed with an innovative inverse heat transfer solution method to calculate the surface heat transfer coefficient at various locations throughout a wide temperature range. Based on the results, the application guidelines, including suggestions of a minimal, but sufficient, coolant flow rate are established. Cryogenic machining experiments are carried out, and ProcSI evaluation is applied to the experimental scenario. Based on the ProcSI evaluation, the optimization process implemented with GA provides optimal machining process parameters for minimum manufacturing cost, minimal energy consumption, or the best sustainability performance.
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5

Kardekar, Abhijit Dilip. "MODELING AND OPTIMIZATION OF MACHINING PERFORMANCE MEASURES IN FACE MILLING OF AUTOMOTIVE ALUMINUM ALLOY A380 UNDER DIFFERENT LUBRICATION/COOLING CONDITIONS FOR SUSTAINABLE MANUFACTURING." UKnowledge, 2005. http://uknowledge.uky.edu/gradschool_theses/373.

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Анотація:
The use of cutting fluids in machining process is very essential for achieving desired machining performance. Due to the strict environmental protection laws now in effect, there is a wide-scale evaluation of the use of cutting fluids in machining. Consequently, minimal quantity lubrication (MQL), which uses very small quantity of cutting fluids and still offers the same functionality as flood cooling, can be considered as an alternative solution. This thesis presents an experimental study of face milling of automotive aluminum alloy A380 under four different lubrication/cooling conditions: dry cutting, flood cooling, MQL (Oil), and MQL (Water). Experiments were design using Taguchi method for design of experiments. Empirical models for predicting surface roughness and cutting forces were developed for these four conditions in terms of cutting speed, feed and depth of cut. Optimization technique using Genetic Algorithms (GA) was used to optimize performance measures under different lubrication/cooling conditions, based on a comprehensive optimization criterion integrating the effects of all major machining performance measures. Case studies are also presented for two pass face milling operation comparing flood cooling condition with MQL. The comparison of the results predicted by the models developed in this work shows that the cutting force for MQL (Oil) is either lower or equal to flood cooling. The surface roughness for MQL (Oil) is comparable to flood cooling for higher range of feed and depth of cut. A comparison of the optimized results from the case studies, based on value of utility function, shows that the optimum point for two pass face milling operation having MQL (Oil) as finish pass has highest utility function value.
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6

Nafisi, Mariam. "Applying system dynamics modeling to a machining process : With regards to environmental friendliness and energy efficiency." Thesis, KTH, Industriell produktion, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-102555.

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Анотація:
Sustainability is one of the challenges in today’s world. With limited resources at hand and hazardous impact of manufacturing processes on the environment, there is an increasing need for sustainable manufacturing. Sustainability actually has a broad meaning and is an all-inclusive concept. In this thesis what we are more interested in and focus on, are energy consumption and environmental impacts. Using system dynamics modeling and simulation, we can more easily understand the behavior of processes. Our selected processes are turning, milling and drilling operations in crankshaft machining and using system dynamics concept we model these processes with regards to energy consumption and environmental concerns. The output of this thesis work can be eventually used as a decision support tool to decide how to make processes more sustainable.
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7

Anderberg, Staffan. "A study of process planning for metal cutting." Licentiate thesis, University West, Division of Production Engineering, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:hv:diva-2147.

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Анотація:

Process planning as a function for competitiveness is often neglected. However, as an intermediary between product development and manufacturing, it holds a key function in transforming product specifications and requirements into a producible process plan. Demands and requirements should be met concurrently as manufacturing costs and lead times are minimised. The focus of this thesis is the act of process planning, where the use of better methodologies, computer-aids and performance measurements are essential parts. Since process planning has the function of transforming demands and requirements, changing customer and regulative requirements are vital to regard. Since environmentally benign products and production increases in importance, the research presented in this thesis includes a CNC machining cost model, which relates machining costs to energy consumption.  The presented results in this thesis are based on quantitative and qualitative studies in the metal working industry.

 

This thesis has contributed to an enhanced understanding of process planning to achieve better performance and important areas for improvements. Despite a 50 year history of computerised process planning aids, few of these are used in the industry, where manual process planning activities are more common. Process planning aids should be developed around the process planner so that non-value adding activities, such as information management and documentation are minimised in order to allow more resources for value adding activities, such as decision making. This thesis presents a study of systematic process planning in relation to perceived efficiency. This correlation could however not be verified, which opens up for further studies of other possible explanations for process planning efficiency. Process planning improvements in the industry are difficult to make, since there is little focus on process planning activities and limited knowledge about actual performance hereof. This means that measures taken regarding process planning development are difficult to verify.


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8

Araujo, Juliano Bezerra de. "Desenvolvimento de método de avaliação de desempenho de processos de manufatura considerando parâmetros de sustentabilidade." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/18/18140/tde-02032010-141958/.

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Анотація:
As empresas não mais podem pensar em desenvolvimento econômico sem a paralela preservação do meio-ambiente e do benefício mútuo da sociedade. É importante que as condições econômicas e sociais sejam melhoradas ao longo do tempo, sem exceder a capacidade de suporte do planeta. As indústrias podem contribuir para melhorar esse cenário aplicando uma gestão sustentável de manufatura, uma vez que estes são um dos principais agentes causadores de impactos. No entanto, para que consigam aprimorar a sustentabilidade de seus processos, é indispensável, antes de tudo, conhecer o seu real desempenho. O presente trabalho tem como objetivo principal desenvolver um método estruturado e simples para a avaliação de desempenho em sustentabilidade de processos de manufatura, permitindo a construção de relatórios de sustentabilidade mais precisos, periódicos e que venham a apoiar o processo de tomada de decisão gerencial. Embora modelos para a avaliação de desempenho em sustentabilidade tenham sido apresentados nos últimos anos, como o guia GRI, estes ainda carecem de critérios e regras para realizar análises mais precisas e integradas. O método proposto pode ser aplicado em dois processos de manufatura distintos, comprovando a sua eficácia e robustez. Ele é usado para analisar e comparar o desempenho em sustentabilidade de dois processos de usinagem, Retificação e Torneamento de Metais Endurecidos. Esses processos concorrem entre si em algumas faixas de atuação, tornando difícil a decisão sobre qual dos dois processos é o ideal para a produção de determinadas peças. Por meio do trabalho, foi possível comprovar a superioridade do processo de retificação em termos de ganhos econômicos, com a contrapartida de pior desempenho ambiental
Companies can no longer consider economical development without the parallel preservation of the environment and mutual benefit of the society. It is important that the economic and social conditions are improved over time, without exceeding the planet carrying capacity. Industries can contribute to improve this scenario by using cleaner and more efficient technologies, since they are one of the main sources of impacts. However, for them to improve their processes sustainability, it is essential to use an assessment tool which is able to evaluate their performance properly. The main goal of this work is to provide a structured and simple method for assessing sustainability performance of manufacturing processes, allowing the construction of more accurate and frequent sustainability reports, that may support the managerial decision making process. Although sustainability performance assessment models have been presented in recent years, as the GRI, there are still a lack of criteria and rules for carrying out more accurate and integrated assessments. The proposed method was able to be applied in two different manufacturing processes assessments, proving its effectiveness and robustness. It was used to analyze and compare the sustainability performance of two machining processes, grinding and hard turning. These processes compete with each other on some applications, making it difficult to decide which of the two processes is ideal for the production of certain parts. Through the study, it is demonstrated the grinding process superiority in terms of economic gains, at the cost of a higher environmental burden
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Heymeyer, Tobias. "Prospecção de oportunidades para a otimização dos processos de usinagem na pequena e média empresa em São Carlos/SP." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/18/18140/tde-16112006-165116/.

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As operações de usinagem viabilizam a construção de máquinas e equipamentos que proporcionam a manutenção do bem estar da sociedade e a sua evolução. Com o estudo das tecnologias e a adequação dos sistemas de produção ao paradigma desenvolvimento sustentável, é possível discutir as operações de corte com ferramentas de geometria definida e oferecer suporte ao desenvolvimento destes processos nas pequenas e médias empresas (PME). Estas unidades do sistema produtivo estão sujeitas ao rigor do mercado e suas transformações, devendo ter condições de oferecer respostas à altura de sua função. O acesso ao conhecimento e à tecnologia leva ao fortalecimento da empresa através dos ganhos de competência e competitividade. A tecnologia proporciona condições de maior produtividade, qualidade e controle dos processos e o novo paradigma de produção conduz à eliminação dos impactos ambientais, racionalização e redução do consumo de recursos não renováveis, para a preservação e manutenção do planeta e seus sistemas naturais. No trabalho desenvolvido na presente pesquisa foi possível conhecer e avaliar as instalações e corpo técnico de onze empresas (PME), com processos de usinagem, no município de São Carlos, São Paulo. A organização dos dados permite a construção de um cenário onde são evidenciados potenciais e carências. Na etapa seguinte foi eleito um processo, em uma das empresas, que recebeu intervenções para melhor desempenho nos aspectos econômico, social e ambiental. Os resultados alcançados permitem que se faça projeções de ganhos para todo o parque industrial estudado. O mecanismo de apoio às pequenas e médias empresas em uma avaliação final sugere um salto de qualidade, referendando o modelo que pode ser facilmente reproduzido.
Machining operations make possible the construction of machines and equipment which provide the maintenance of society welfare and its evolution. Studying the technology directions and the production systems adequacy to the sustainable development paradigm enables the discussion of machining and the fostering of the processes at the small and medium-sized enterprises (SME). Because of the vulnerability to the market and its transformations these companies should have conditions to respond to the demands at the importance level of their function. The access to the knowledge and technology brings a gain in competence and competitiveness. Technology provides conditions for higher productivity, quality and processes control, as well as the new production paradigm leads to the elimination of the environmental impacts, rationalization and reduction in the use of non renewable materials preserving and maintaining the planet’s natural systems. In this research it was possible to know the facilities and the technical staff of eleven metalworking companies (SME), in São Carlos city, São Paulo state. The gathered data allows to draw a portrait that puts in evidence the potentials and deficiencies. On a next stage a specific machining operation was chosen to be improved in the economic, social and environmental aspects. The achieved results allow projections of gains in the industrial park. In a final evaluation of the small and medium-sized enterprises support mechanism it suggests a quality improvement assuring the availability of the model that is easily reproducible.
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BRANKER, KADRA. "A STUDY OF ENERGY, CARBON DIOXIDE EMISSIONS AND ECONOMICS IN MACHINING: MILLING AND SINGLE POINT INCREMENTAL FORMING." Thesis, 2011. http://hdl.handle.net/1974/6897.

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A simple model that includes energy and carbon dioxide (CO2) emissions in the economics of machining is proposed, which has been published in the highly respected and cited journal, Annals of CIRP (International Academy for Production Engineering). This is a timely analysis in current government discussions on a proposed carbon tax or a carbon cap and trade regime and greater energy efficiency. The new cost model is based on life cycle analysis methodology for the initial part production. An illustrative example is given showing that the cheapest electrical grid should not be chosen, if it also has the highest CO2 emissions. Accurate pricing is important, because the more expensive product was highly dependent on the carbon price. A comprehensive review of machining economic models is covered. However, there is a dearth of actual machining data in the literature. This work includes studies in milling and single point incremental forming (SPIF) which can be used by other manufacturing engineers in their machining economic model development. The first milling study involved simple straight cuts. In general, as feed rate (FD) increased (increasing the material removal rate, MRR), the energy consumed decreased as process time decreased. In contrast, as spindle speed (N) increased, energy consumed increased, since more power is drawn by the motor, without a process time reduction. Given the inverse power relationship observed for the time, energy, process CO2 and cost against MRR, the recommended parameters were the same at the highest FD and lowest N permissible. In the second milling study with constant N for a more complex part (sprocket), similar relationships were observed. However, for sprockets made at constant chip load (allowing FD and N to change together), there were varying prescribed MRRs for time, energy, process CO2 and cost minimization. The SPIF studies showed a similar relationship to the constant N milling, and, that results for a simple part can be extrapolated to improve efficiency in more complex parts. Finally, although the energy and carbon costs represented a small contribution to the final cost, their significance increased for higher efficiency parameters or user conditions, e.g. low labour rate.
Thesis (Master, Mechanical and Materials Engineering) -- Queen's University, 2011-12-03 19:58:07.76
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Книги з теми "Machining, modelling, sustainable manufacturing"

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Gajrani, Kishor Kumar, Arbind Prasad, and Ashwani Kumar. Advances in Sustainable Machining and Manufacturing Processes. Boca Raton: CRC Press, 2022. http://dx.doi.org/10.1201/9781003284574.

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Gupta, Kapil. Advanced Manufacturing Technologies: Modern Machining, Advanced Joining, Sustainable Manufacturing. Springer, 2018.

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3

Gupta, Kapil. Advanced Manufacturing Technologies: Modern Machining, Advanced Joining, Sustainable Manufacturing. Springer International Publishing AG, 2017.

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4

Gajrani, Kishor Kumar, Arbind Prasad, and Ashwini Kumar. Advances in Sustainable Machining and Manufacturing Processes. Taylor & Francis Group, 2022.

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5

Gajrani, Kishor Kumar, Arbind Prasad, and Ashwini Kumar. Advances in Sustainable Machining and Manufacturing Processes. Taylor & Francis Group, 2022.

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6

Gajrani, Kishor Kumar, Arbind Prasad, and Ashwani Kumar. Advances in Sustainable Machining and Manufacturing Processes. CRC Press LLC, 2022.

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7

Gajrani, Kishor Kumar, Arbind Prasad, and Ashwani Kumar. Advances in Sustainable Machining and Manufacturing Processes. Taylor & Francis Group, 2022.

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8

Gajrani, Kishor Kumar, Arbind Prasad, and Ashwini Kumar. Advances in Sustainable Machining and Manufacturing Processes. Taylor & Francis Group, 2022.

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9

Narayanan, R. Ganesh, and Jay S. Gunasekara. Sustainable Material Forming and Joining. Taylor & Francis Group, 2019.

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10

Narayanan, R. Ganesh, and Jay S. Gunasekera. Sustainable Material Forming and Joining. Taylor & Francis Group, 2019.

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Частини книг з теми "Machining, modelling, sustainable manufacturing"

1

Bhardwaj, Saurabh, C. S. Jawalkar, and Suman Kant. "A Review on Dielectric Issues and Sustainable Alternatives in Electric Discharge Machining." In Advances in Modelling and Optimization of Manufacturing and Industrial Systems, 71–84. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-6107-6_6.

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2

Gaitonde, Vinayak N., Ramesh S. Karnik, and J. Paulo Davim. "Minimum Quantity Lubrication in Machining." In Sustainable Manufacturing, 79–110. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118621653.ch3.

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3

Rotella, G., T. Lu, L. Settineri, O. W. Dillon, and I. S. Jawahir. "Dry and Cryogenic Machining: Comparison from the Sustainability Perspective." In Sustainable Manufacturing, 95–100. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-27290-5_14.

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Grzesik, Wit, and Adam Ruszaj. "Modelling of Hybrid Machining Processes." In Springer Series in Advanced Manufacturing, 61–79. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-77107-2_5.

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Anderberg, S., T. Beno, and L. Pejryd. "Energy and Cost Efficiency in CNC Machining from a Process Planning Perspective." In Sustainable Manufacturing, 393–98. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-27290-5_63.

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Bayraktar, Şenol, and Cem Alparslan. "Sustainable Abrasive Jet Machining." In Advances in Sustainable Machining and Manufacturing Processes, 173–88. Boca Raton: CRC Press, 2022. http://dx.doi.org/10.1201/9781003284574-11.

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Natarajan, Elango, K. Palanikumar, and S. Ramesh. "Smart Manufacturing—A Lead Way to Sustainable Manufacturing." In Materials Forming, Machining and Tribology, 1–7. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-70009-6_1.

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Despeisse, M., P. D. Ball, and S. Evans. "Modelling and Tactics for Sustainable Manufacturing: An Improvement Methodology." In Sustainable Manufacturing, 9–16. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-27290-5_2.

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Mullya, Satish, and Tribeni Roy. "Sustainable Electrical Discharge Machining Process." In Advances in Sustainable Machining and Manufacturing Processes, 157–72. Boca Raton: CRC Press, 2022. http://dx.doi.org/10.1201/9781003284574-10.

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Mortazavi, Mina, and Atanas Ivanov. "Sustainability of Micro Electrochemical Machining: Discussion." In Sustainable Design and Manufacturing 2017, 203–10. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-57078-5_20.

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Тези доповідей конференцій з теми "Machining, modelling, sustainable manufacturing"

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Coutinho, Carlos, Ricardo Jardim-Goncalves, and Adina Cretan. "Sustainable Interoperability of Negotiation of Manufacturing Robotic Machining Processes." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-64891.

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The rise of new service-oriented technologies drives new ways to perform interoperability between manufacturing companies, even in areas not directly connected to the manufacturing enterprise core business. The aerospace segment is a highly competitive area, supported by numerous partners and applications which need to collaborate and be interoperable. Particularly, the subcontracted small and medium enterprises (SMEs) need to be flexible towards the changes that are imposed by the major contractors, doing so at the lowest cost. This paper proposes a framework based on Model Driven Interoperability (MDI) and service orientation principles, which advocates negotiations as a pillar mechanism towards the achievement of sustainable interoperability in manufacturing organisations acting in the same industrial market, using a service-oriented platform. The framework encompasses a set of tools that implement the business modelling and negotiation rules, including a reference ontology, and supported by a set of cloud-based services deployed in a cloud infrastructure. The underlying complexity is to model the dynamic environment where multi-attribute and multi-participant negotiations are racing over a set of heterogeneous resources. The evolution of the negotiations is performed through the use of the metaphor Interaction Abstract Machines (IAMs). This framework is then illustrated by the case study of the European Space Agency – Concurrent Design Facility (ESA-CDF) department, which performs feasibility studies for space missions.
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Uhlmann, Eckart, Bernd Peukert, Simon Thom, Lukas Prasol, Paul Fürstmann, Fiona Sammler, and Sebastian Richarz. "Solutions for Sustainable Machining." In ASME 2016 11th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/msec2016-8642.

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The manufacturing industry contributes over 19% to the world’s greenhouse gas emissions [1, 3] and 31% of the total energy consumed annually in the United States of America [2, 3]. There is therefore an increasing demand for sustainable solutions for the production technology industry. At the Technische Universitaet (TU) Berlin, Germany, a collaborative research center (CRC) is focusing on new solutions for the sustainable machining of high performance alloys, with developments from machine tools frames to cutting tool technology being undertaken. An innovative machine tool concept with a modular frame, which allows a high level of flexibility, has been developed. Furthermore, add-on upgrading systems for older machine tools, which are particularly relevant for developing countries, have been developed. These systems allow the accuracy of outdated machine tools to be increased, thus making the machine tools comparable to modern systems. Finally the cutting process also requires solutions for dry machining, as the use of cooling lubricant is environmentally damaging and a significant cost contributor in machining processes. Two solutions are being developed at the TU Berlin: an internally cooled cutting tool and a heating concept for ceramic tools to allow dry machining of high temperature alloys, for example for the aerospace industry.
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Antonio, Vallejo,. "Surface Roughness Modelling in Machining Processes." In Information Control Problems in Manufacturing, edited by Bakhtadze, Natalia, Chair Dolgui, Alexandre and Bakhtadze, Natalia. Elsevier, 2009. http://dx.doi.org/10.3182/20090603-3-ru-2001.00053.

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Wang, Haoqi, Xu Zhang, Chao Liang, and Qing Zhang. "Information Modeling for Sustainable Manufacturing Assessment." In ASME 2014 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/detc2014-34743.

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For sustainable manufacturing, energy consumption, air and waste emission, and environmental impact of product and process are analyzed in product and process development. The sustainability assessment is realized based on complete, structured information models of product, process and manufacturing resources, which are proposed in this paper. After analyzing the process of unit assembly and machining, two information models of unit assembly operation and unit machining process are given in UML representation. Besides the basic process parameters, the sustainable manufacturing related information such material consumption, energy usage, wastes and greenhouse air emission are also considered in the models. The manufacturing resource mode is core model to relate process and sustainability indicators. The resource information model of machining tool is proposed with process parameters and unit data of indictors. A sustainability assessment process is given in the end.
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Bhaskaran, J., C. Venkatesh, Abdulmelik Husen Meda, and V. Aswinprasad. "Modelling and trajectory tracking of four arm robot for inspection." In INTERNATIONAL CONFERENCE ON MATERIALS, MANUFACTURING AND MACHINING 2019. AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5117951.

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6

Jakub, Szabelski,. "Modelling and Systemic Analysis of Models of Dynamic Systems of Shaft Machining." In Information Control Problems in Manufacturing, edited by Bakhtadze, Natalia, Chair Dolgui, Alexandre and Bakhtadze, Natalia. Elsevier, 2009. http://dx.doi.org/10.3182/20090603-3-ru-2001.00290.

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Jayal, Anshu D., and A. K. Balaji. "On a Process Modeling Framework for Sustainable Manufacturing: A Machining Perspective." In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-43640.

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Анотація:
Sustainability and economic factors are increasingly pushing industry towards environmentally friendly manufacturing methods. However, the implications of processing level changes, which are being introduced at a significant rate, for overall, environmental impact need better characterization. In the first half of this paper, a simplified framework for enhancing sustainability in manufacturing, by enabling rapid assessment of approximate life-cycle implications of competing process-level alternatives, is introduced. This framework relies on developing or enhancing manufacturing process models in such a way that a superior quantitative evaluation of the environmental and economic impacts of decisions made in manufacturing process planning can be established. In the second half of this paper, the specific case of metal machining is presented. In machining the maximum attention has been directed towards reducing the traditional profligate use of metalworking fluids. Consequently, a significant quantity of research work has been directed towards developing dry and near-dry, or Minimal Quantity Lubrication (MQL), machining techniques. A review of available literature shows that several outcomes of these techniques for product life-cycle assessment need to be addressed — i.e., some environmental tradeoffs are often involved in their implementation. Avenues for further research in sustainable machining, including some ideas for advancing dry and near-dry machining without resorting to chemical action for extreme-pressure lubrication, are also presented.
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Pattabhiraman, Arvind, Deepak Marla, and Shiv G. Kapoor. "Atomized Dielectric Spray-Based Electric Discharge Machining (Spray-EDM) for Sustainable Manufacturing." In ASME 2015 International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/msec2015-9348.

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A novel method of using atomized dielectric spray in EDM to reduce the consumption of dielectric is developed in this study. The atomized dielectric droplets form a moving dielectric film up on impinging the work surface that penetrates the inter-electrode gap and acts as a single phase dielectric medium between the electrodes and also effectively removes the debris particles from the discharge zone. EDM experiments are performed using three different dielectric supply methods, viz., conventional wet-EDM (electrodes submerged in dielectric medium), dry-EDM and spray-EDM in order to compare the processes based on material removal, tool electrode wear and flushing of debris from the inter-electrode gap across a range of discharge energies. It is observed that spray-EDM produces higher material removal compared to the other two methods for all combinations of discharge parameters used in the study. The tool electrode wear using atomized dielectric is significantly better than dry-EDM and comparable to that observed in conventional wet-EDM. The percentage of debris particles deposited within a distance of 100 μm from the center of EDM crater is also significantly reduced using the atomized dielectric spray EDM technique.
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9

Singh, Vivek, M. Chandrasekaran, S. Samanta, and M. Thirugnanasambandam. "Artificial neural network modelling of weld bead characteristics during GMAW of nitrogen strengthened austenitic stainless steel." In INTERNATIONAL CONFERENCE ON MATERIALS, MANUFACTURING AND MACHINING 2019. AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5117936.

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Ojolo, Sunday J., Olumuwiya Agunsoye, Oluwole Adesina, and Gbeminiyi M. Sobamowo. "Cutting Force and Friction Modelling in High Speed End-Milling." In ASME 2015 International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/msec2015-9358.

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Temperature field in metal cutting process is one of the most important phenomena in machining process. Temperature rise in machining directly or indirectly determines other cutting parameters such as tool life, tool wear, thermal deformation, surface quality and mechanics of chip formation. The variation in temperature of a cutting tool in end milling is more complicated than any other machining operation especially in high speed machining. It is therefore very important to investigate the temperature distribution on the cutting tool–work piece interface in end milling operation. The determination of the temperature field is carried out by the analysis of heat transfer in metal cutting zone. Most studies previously carried out on the temperature distribution model analysis were based on analytical model and with the used of conventional machining that is continuous cutting in nature. The limitations discovered in the models and validated experiments include the oversimplified assumptions which affect the accuracy of the models. In metal cutting process, thermo-mechanical coupling is required and to carry out any temperature field determination successfully, there is need to address the issue of various forces acting during cutting and the frictional effect on the tool-work piece interface. Most previous studies on the temperature field either neglected the effect of friction or assumed it to be constant. The friction model at the tool-work interface and tool-chip interface in metal cutting play a vital role in influencing the modelling process and the accuracy of predicted cutting forces, stress, and temperature distribution. In this work, mechanistic model was adopted to establish the cutting forces and also a new coefficient of friction was also established. This can be used to simulate the cutting process in order to enhance the machining quality especially surface finish and monitor the wear of tool.
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Звіти організацій з теми "Machining, modelling, sustainable manufacturing"

1

Slattery, Kevin, and Eliana Fu. Unsettled Issues in Additive Manufacturing and Improved Sustainability in the Mobility Industry. SAE International, July 2021. http://dx.doi.org/10.4271/epr2021015.

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Анотація:
Additive manufacturing (AM), also known as “3D printing,” is often touted as a sustainable technology, especially for metal components, since it produces either net or near-net shapes versus traditionally machined pieces from larger mill products. While traditional machining from mill products is often the case in aerospace, most of the metal parts used in the world are made from flat-rolled metal and are quite efficient in utilization. Additionally, some aspects of the AM value chain are often not accounted for when determining sustainability. Unsettled Issues in Additive Manufacturing and Improved Sustainability in the Mobility Industry uses a set of scenarios to compare the sustainability of parts made using additive and conventional technologies for both the present and future (2040) states of manufacturing.
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