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Artykuły w czasopismach na temat "AISI D3"

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Manimaran, G., i Murugasan Pradeep Kumar. "Investigation of Liquid Nitrogen (LN2) as Coolant in Grinding of AISI D3 Steel". Advanced Materials Research 341-342 (wrzesień 2011): 400–405. http://dx.doi.org/10.4028/www.scientific.net/amr.341-342.400.

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In order to find the alternative to conventional oil based coolants on the basis of environmental aspects, the present work investigates the effectiveness of Liquid N2 as eco friendly coolant in the grinding of AISI D3 steel with Aluminum oxide (Al2O3 ) as grinding wheel. The experiment was examined in terms of surface roughness, grinding forces, grinding zone temperature, and material removal rate (MRR) in the Grinding of AISI D3 steel under various grinding conditions. The performances of liquid nitrogen cooling were compared with the conventional oil cooling and found that 30-32% reduction in the surface roughness, 30-34 % reduction in the grinding zone temperature, and about 8 % reduction in grinding forces were observed. It was also found that even at higher MRR, better surface quality obtained. In this study, it is clearly revealed that reduction in the grinding temperature leads to improvements in the grindability and cryogenic cooling by liquid N2 as better coolant in the grinding of AISI D3 steel.
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Imani Moqadam, Saeedeh, Michael Baune, Ingmar Bösing, Carsten Heinzel, Daniel Meyer, Arne Thomann, Nicole Wielki i Nils Ellendt. "Reproducibility of High-Throughput Sample Properties Produced by a High-Temperature Molten Metal Droplet Generator". Metals 10, nr 3 (25.02.2020): 297. http://dx.doi.org/10.3390/met10030297.

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A high-throughput method for the discovery of structural materials requires a large number of samples with highly reproducible properties. We propose using spherical micro-samples, which can be quickly produced by molten metal single droplet processes with high geometrical reproducibility. However, geometrical reproducibility does not automatically yield in the reproducibility of specific properties that are governed by the microstructure and thermal history of the samples. This work evaluates the reproducibility of two different steels (AISI D3 and 5140) in their as-synthesized state without additional heat treatment. By determining a set of well-established high-throughput descriptors by electrochemical analysis, particle-oriented peening, and micro machining, we show that high reproducibility can be achieved. Additionally, the determined properties correlate well with their austenitic (AISI D3) and martensitic (AISI5140) state. The AISI D3 shows an improved corrosion resistance, increased cutting forces during machining, and a higher deformation during particle-oriented peening. The reproducibility of the sample synthesis indicates that this type of sample is well suited for high-throughput methods to find new structural materials.
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Vinay, P. V., i Ch Srinivasa Rao. "Experimental Analysis and Modelling of Grinding AISI D3 Steel". International Journal of Recent advances in Mechanical Engineering 4, nr 1 (28.02.2015): 47–60. http://dx.doi.org/10.14810/ijmech.2015.4105.

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Jovičević-Klug, Patricia, Tjaša Kranjec, Matic Jovičević-Klug, Tadeja Kosec i Bojan Podgornik. "Influence of the Deep Cryogenic Treatment on AISI 52100 and AISI D3 Steel’s Corrosion Resistance". Materials 14, nr 21 (24.10.2021): 6357. http://dx.doi.org/10.3390/ma14216357.

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The effect of deep cryogenic treatment (DCT) on corrosion resistance of steels AISI 52100 and AISI D3 is investigated and compared with conventional heat-treated counterparts. DCT’s influence on microstructural changes is subsequently correlated to the corrosion resistance. DCT is confirmed to reduce the formation of corrosion products on steels’ surface, retard the corrosion products development and propagation. DCT reduces surface cracking, which is considered to be related to modified residual stress state of the material. DCT’s influence on each steel results from the altered microstructure and alloying element concentration that depends on steel matrix and type. This study presents DCT as an effective method for corrosion resistance alteration of steels.
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Kumar, Satish, Mohan Nagraj, R. Suresh, Arunkumar Bongale i Nitin Khedkar. "The Effect of Holding Time of Deep Cryogenic-Treated AISI D3 Cutting Tool on Machinability of Low Carbon Steels Using Taguchi’s Technique". Journal of Advanced Manufacturing Systems 19, nr 02 (czerwiec 2020): 215–33. http://dx.doi.org/10.1142/s0219686720500110.

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This paper deals with the effect of machining parameters on tool wear, surface roughness and cutting forces in dry turning of low carbon steel with deep cryo-treated AISI D3 tool steel. AISI D3 tool steel was used for preparation of cutting tools as per International Standard Organization (ISO: 3685-1993). Deep cryogenic treatment ([Formula: see text]C) of D3 tool steel was carried out at different holding time (12[Formula: see text]h, 24[Formula: see text]h and 36[Formula: see text]h) followed by tempering at [Formula: see text]C for 2[Formula: see text]h. Taguchi’s L27 orthogonal array is used for optimizing the process parameters during machining process. Analysis of variance (ANOVA) was carried out to study the significance of the input parameters. Mathematical models were developed using linear regression analysis for validating results. The tool worn surface shows the abrasion wear and oxidation wear were the main wear mechanisms observed under higher speed and feed rate cutting conditions.
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Kumar, Dr N. Mahesh, i Mr P. Chinna Rao. "Optimization of EDM Process Parameters using Response Surface Methodology for AISI D3 Steel". International Journal of Trend in Scientific Research and Development Volume-3, Issue-3 (30.04.2019): 1651–56. http://dx.doi.org/10.31142/ijtsrd23535.

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Rath, D., S. Panda i K. Pal. "Dry turning of AISI D3 steel using a mixed ceramic insert: A study". Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 233, nr 19-20 (31.07.2019): 6698–712. http://dx.doi.org/10.1177/0954406219862844.

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AISI D3 steel is a new kind of hardened tool steel with excellent wear resistance. This hard material receives wide promotion, investigation, and application in the die manufacturing industries. In the machining of AISI D3 steel, tool wear has a close relationship with the presence of different constituent elements in the workpiece material and cutting conditions. This study reports an improved experimental investigation approach to the analysis of effect of cutting speed, feed rate, and depth of cut on cutting forces, surface roughness, tool wear, and chip morphology in high-speed turning of AISI D3 steel using a hybrid TiN-coated Al2O3 + TiCN mixed ceramic insert. The range of each parameter is set at different levels for the analysis purpose. The experimental observations show that the cutting force is predominantly influenced by the feed rate accompanied by the depth of cut. The predominant factor influencing flank wear is the feed rate accompanied by the depth of cut and cutting speed. Feed rate is one of the dominating factors that influences the surface finish characteristics. The characterization of tool wear and chip morphology was performed by a scanning electron microscope supplied with energy-dispersive X-ray spectroscopy pattern. The results demonstrated that the predominant wear mechanism of the multilayered hybrid-coated tool was flank wear, crater wear, adhesion wear, and abrasive wear.
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Manimaran, G., M. Pradeep kumar i R. Venkatasamy. "Surface modifications in grinding AISI D3 steel using cryogenic cooling". Journal of the Brazilian Society of Mechanical Sciences and Engineering 37, nr 4 (27.08.2014): 1357–63. http://dx.doi.org/10.1007/s40430-014-0241-0.

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Sivapirakasham, S. P., S. Thiyagarajan, Jose Mathew, M. Surianarayanan i A. S. Sathya Sai Nathan. "Investigation of Environment and Machining Aspects in Electrical Discharge Machining (EDM) Using Different Workpieces and Tool Electrode". Applied Mechanics and Materials 592-594 (lipiec 2014): 2513–17. http://dx.doi.org/10.4028/www.scientific.net/amm.592-594.2513.

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Emission of toxic substances is the major occupational and environmental problem associated with this process. These emissions may cause adverse health effects to the operators and has the direct impact on the environment. The present investigation was conducted to study together the environmental and machining aspects of EDM process. The work aims to investigate the emission and machining parameters in EDM process using different workpiece material viz; like aluminum, mild steel and AISI-D3 tool steel with EDM 30 as a dielectric fluid and brass as a electrode. The results showed that the aluminium workpiece material gave a higher emission rate and MRR compared with mild steel and AISI D3 tool steel due to the low melting and boiling temperature. Among the process parameters, peak current and pulse duration was found to strongly affect the emission and performance aspects.
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Singh, Harvinder, Swarn Singh i Aneesh Goyal. "Wear Resistance Enhancement of AISI D3 Tool Steels by Cryogenic Treatment: A Review". Asian Review of Mechanical Engineering 7, nr 1 (5.05.2018): 15–17. http://dx.doi.org/10.51983/arme-2018.7.1.2440.

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The aim of this study is to reveal the enhancement of wear resistance of AISI D3 Tool Steel by Cryogenic Treatment. Cryogenic Treatment is often referred as Cryotreatment, is an add-on process to the conventional heat treatment. In the experimentation process, samples of AISI D3 tool steel were taken in batches out of which some samples were treated with conventional heat treatment (QT) whereas other were cryogenically treated (QCT) at 77 K for a period of 24 hrs. Dry sliding wear test were carried out on Pin on Disk machine. The input parameters are Load (N), and sliding velocity (V). Trials were performed in combination of above said parameters. Later on SEM was been carried on the worked samples so as to compare the microstructural changes between the conventional heat treated samples and cryogenically treated samples.
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Rozprawy doktorskie na temat "AISI D3"

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Lira, Calmet Gissela. "Aplicación de la criogenia en el tratamiento térmico de aceros para trabajo en frío : K100 (AISI D3)". Bachelor's thesis, Pontificia Universidad Católica del Perú, 2009. http://tesis.pucp.edu.pe/repositorio/handle/123456789/376.

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Debido al efecto tremendamente importante de la microestructura en el desempeño de las herramientas, trabajos de investigación y desarrollo han mostrado que los tratamientos térmicos criogénicos son un camino para conseguir la estructura que ofrezca las mejores características frente a solicitaciones de desgaste y dureza. Gran importancia recae tanto en la presencia como en el porcentaje relativo de la austenita retenida frente a los otros constituyentes del acero. El presente trabajo de tesis busca estudiar los efectos de los tratamientos criogénicos comparados con los tratamientos térmicos convencionales en la obtención de una estructura con menor austenita retenida, realizados en el acero de herramienta para trabajo en frío AISISAE D3 (DIN X 210 Cr 12).
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YADAV, MANEESH KUMAR. "EFFECTS OF MACHINING VARIABLES ON SURFACE ROUGHNESS IN WIRE-EDM OF AISI D3". Thesis, 2011. http://dspace.dtu.ac.in:8080/jspui/handle/repository/19702.

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Accompanying the development of industry, the demands for alloy materials having high hardness, toughness and impact resistance are increasing. Wire EDM machines are used to cut conductive metals of any hardness or that are difficult or impossible to cut with traditional methods. The machines also specialize in cutting complex contours or fragile geometries that would be difficult to be produced using conventional cutting methods. Machine tool industry has made exponential growth in its manufacturing capabilities in last decade but still machine tools are not utilized at their full potential. This limitation is a result of the failure to run the machine tools at their optimum operating conditions. The problem of arriving at the optimum levels of the operating parameters has attracted the attention of the researchers and practicing engineers for a very long time. The literature survey has revealed that a little research has been conducted to obtain the optimal levels of machining parameters that yield the best machining quality in machining of difficult to machine materials like die steel AISI D3. The die steel AISI D3 is extensively used for hot-work forging, extrusion, manufacturing punching tools, mandrels, mechanical press forging die, plastic mould and die-casting dies, aircraft landing gears, helicopter rotor blades and shafts, etc. The consistent quality of parts being machined in wire electrical discharge machining is difficult because the process parameters cannot be controlled effectively. These are the biggest challenges for the researchers and practicing engineers. Manufacturers try to ascertain control factors to improve the machining quality based on their operational experiences, manuals or failed attempts. Keeping in view the applications of material AISI D3 die steel, it has been selected and has been machined on wire-cut EDM (EZEECUT PLUS WIRECUT EDM) of Electronica Machine Tools Limited. The objective of the present work was to investigate the effects of the various WEDM process parameters on the surface roughness and to obtain the optimal sets of process parameters so that the quality of machined parts can be optimized. The working ranges and levels of the WEDM process parameters are found using one factor at a time approach. The linear regression analysis has been used to investigate the effects of the WEDM process parameters and subsequently to predict sets of optimal parameters for best surface finish.
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Gilbert, François. "Étude biochimique de l'implication des facteurs de transcription NGFI-B et RXR[gamma]1, ainsi que du récepteur dopaminergique D3, dans le développement des dyskinésies induites à la L-dopa chez le singe MPTP /". 2004. http://proquest.umi.com/pqdweb?did=766857231&sid=15&Fmt=2&clientId=9268&RQT=309&VName=PQD.

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Części książek na temat "AISI D3"

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Haribabu, Sangathoti, Muralimohan Cheepu, Lakshmipathi Tammineni, Naresh Kumar Gurasala, Venkateswarlu Devuri i Venkata Charan Kantumuchu. "Dissimilar Friction Welding of AISI 304 Austenitic Stainless Steel and AISI D3 Tool Steel: Mechanical Properties and Microstructural Characterization". W Lecture Notes in Mechanical Engineering, 271–81. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-1780-4_27.

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Kanthale, V. S., i D. W. Pande. "Experimental Study of Process Parameters on Finishing of AISI D3 Steel Using Magnetorheological Fluid". W Advanced Engineering Optimization Through Intelligent Techniques, 739–48. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-8196-6_65.

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Santarao, K., C. L. V. R. S. V. Prasad i G. Swaminaidu. "Parametric Optimization of Nanopowder Blended Electrical Spark Machining AISI D3 DIE Steel Employing Grey Relational Analysis". W Lecture Notes in Mechanical Engineering, 669–79. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-4606-6_61.

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Kumar, Sunil, Saikat Ranjan Maity i Lokeswar Patnaik. "Effect of Surface Modification on the Nanomechanical and Wear Properties of AISI D3 Cold Work Tool Steel". W Lecture Notes in Mechanical Engineering, 105–13. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-3266-3_9.

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Dwivedi, Anand Prakash, i Sounak Kumar Choudhury. "Assessment and Comparison of Machining Performance in Rotary and Stationary Tool EDM for Machining AISI D3 Tool Steel". W Transactions on Engineering Technologies, 95–109. Singapore: Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-1088-0_8.

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Pérez-Salinas, Cristian, Diego Molina-Molina i Leónidas Ramirez-Gangotena. "Effect of Conventional and Ecological Dielectric on the Wire Electrical Discharge Machining WEDM Process on AISI-D3 Steel". W Lecture Notes in Electrical Engineering, 31–42. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-72212-8_3.

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Singh, Rupinder, i J. S. Dureja. "Comparing Taguchi Method and RSM for Optimizing Flank Wear and Surface Roughness During Hard Turning of AISI D3 Steel". W Lecture Notes in Mechanical Engineering, 139–52. New Delhi: Springer India, 2014. http://dx.doi.org/10.1007/978-81-322-1859-3_13.

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Babouri, Mohamed Khemissi, Nouredine Ouelaa, Mohamed Cherif Djamaa, Abderrazek Djebala, Septi Boucherit i Nacer Hamzaoui. "Prediction of Optimal Lifetime of the Tool’s Wear in Turning Operation of AISI D3 Steel Based on the a New Spectral Indicator SCG". W Lecture Notes in Mechanical Engineering, 87–100. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-11827-3_9.

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Bose, Goutam Kumar, i Pritam Pain. "Nature-Inspired Metaheuristic Approach for Multi-Objective Optimization During WEDM Process". W Soft Computing Techniques and Applications in Mechanical Engineering, 91–122. IGI Global, 2018. http://dx.doi.org/10.4018/978-1-5225-3035-0.ch004.

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In this research paper Wire-Electric Discharge Machining (WEDM) is applied to machine AISI-D3 material in order to measure the performance of multi-objective responses like high material removal rate and low roughness. This contradictory objective is accomplished by the control parameters like Pulse on Time (Ton), Pulse off Time (Toff), Wire Feed (W/Feed) and Wire Tension (W/Ten) employing brass wire. Here the orthogonal array is used to developed 625 parametric combinations. The optimization of the contradictory responses is carried out in a metaheuristic environment. Artificial Neural Network is employed to train and validate the experimental result. Primarily the individual responses are optimized by employing Firefly algorithm (FA). This is followed by a multi-objective optimization through Genetic algorithm (GA) approach. As the results obtained through GA infer a domain of solutions, therefore Grey Relation Analysis (GRA) is applied where the weights are considered through Fuzzy set theory to ascertain the best parametric combination amongst the set of feasible alternatives.
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Lam, TP, G. Yang, H. Pang, BHK Yip, WYW Lee, ALH Hung, NLS Tang, KKW To, Y. Qiu i JCY Cheng. "A six years longitudinal cohort study on the changes in bone density and bone quality up to peak bone mass in adolescent idiopathic scoliosis (AIS) with and without 2 years of Calcium and Vit-D supplementation". W Studies in Health Technology and Informatics. IOS Press, 2021. http://dx.doi.org/10.3233/shti210429.

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Adolescent idiopathic scoliosis (AIS) is associated with osteopenia which could persist into adulthood affecting attainment of Peak Bone Mass thus resulting in osteoporosis in late adulthood. We previously reported a randomized double-blinded placebo-controlled trial(the Cal study) showing significant bone health improvement with 2-year calcium(Ca)+Vit-D supplementation for AIS girls. This study addressed the important issue whether bone health improvement from the initial 2-year Ca+Vit-D supplementation could persist as subjects approached towards Peak Bone Mass at 6-year ie after 4-year of supplement discontinuation. This was an extension of the Cal study on AIS girls (11–14 years old, mean age=12.9 years, Tanner stage<IV) with femoral neck aBMD Z-score<0 and Cobb angle≥15∘. 330 subjects were randomized to Group1(placebo), Group2(600mgCa+400-IU-Vit-D3/day) or Group3(600mgCa+800-IU-Vit-D3/day) for 2-year supplementation after which supplementation was stopped. Investigations at baseline, 2-year and 6-year included High-resolution Peripheral Quantitative Computed Tomography(HR-pQCT) at distal radius and Dual Energy X-ray Absorptiometry(DXA) at both hips. 270(81.8%) subjects completed 2-year supplementation when changes in left femoral neck aBMD, trabecular vBMD, Trabecular BV/TV, Trabecular Number and Trabecular Separation indicated significant bone health improvement with Ca+Vit-D supplementation(p<0.05). At 6-year(mean age=19.2 years), no between-group difference on bone parameters was noted except increase in Cortical Thickness being greater only in Group3 than in Group1. After 4-year supplement discontinuation, the treatment effect from the initial 2-year supplementation mostly dissipated indicating the need of continued supplementation in AIS girls to sustain therapeutic improvement on bone health as subjects approach towards Peak Bone Mass.
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Streszczenia konferencji na temat "AISI D3"

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Daniyan, Ilesanmi Afolabi, Khumbulani Mpofu, Adefemi Omowole Adeodu i Moses Oyesola. "Hard Turning Operation of Alloy Tool Steel (AISI D3) Using Cubic Boron Cutting Tool". W 2023 14th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT). IEEE, 2023. http://dx.doi.org/10.1109/icmimt59138.2023.10199225.

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Panda, Bidyut Kumar, i Sanjeev Kumar. "Impact of Powder-mixed Electrical Discharge Machining on Surface Hardness of AISI D3 Die Steel". W 2019 IEEE 10th International Conference on Mechanical and Aerospace Engineering (ICMAE). IEEE, 2019. http://dx.doi.org/10.1109/icmae.2019.8880966.

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Prakash, R. Shanmuga, K. Sivakumar, S. Jegadheeswaran, A. Amarkarthik i P. Mathankumar. "Parameters optimization of copper powder mixed dielectric and pure dielectric medium in wire electrical discharge machining of AISI D3 steel". W INTERNATIONAL CONFERENCE ON MATERIALS, MANUFACTURING AND MACHINING 2019. AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5117972.

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Golshan, Abolfazl, Soheil Gohari i Amran Ayob. "Modeling and optimization of cylindrical wire electro discharge machining of AISI D3 tool steel using non-dominated sorting genetic algorithm". W 2011 International Conference on Graphic and Image Processing. SPIE, 2011. http://dx.doi.org/10.1117/12.914614.

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Puri, Y. M., i N. V. Deshpande. "Parametric Optimization of WEDM of High Chromium High Carbon Die Steel Using ANN". W ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-14306.

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In this research, single pass cutting of HCHC (High Chromium High Carbon) die steel AISI D3 Grade has been used where material removal rate (MRR) and surface roughness (SR) are of primary importance. In general, achieving a high level cutting speed with a better surface finish is extremely difficult task because in wire cut electric discharge machining (WEDM), no particular parametric combination is expected to yield simultaneously in the best MRR and the best SR. Hence it can be considered as multi objective optimization problem. This research presents an attempt at multi objective optimization of the process parametric combinations by modeling the process using artificial neural network (ANN). A feed forward back propagation neural network based on matrix experimental design is developed to model the WEDM process. Based on the developed model, different response parameters are calculated for various input parameter setting. Finally they are compared to find out optimal combination of machining parameter setting. Electronica make EZEECUT PLUS model has been used for experimentation and a methodology has been suggested to determine the optimal combination of control parameters in WEDM. Research findings in the area of machining HCHC die steel through WEDM process will open up a new horizon and will certainly solve various challenging problems faced by the engineers and die makers in the field of modern manufacturing industry.
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Mohammadi, Hossein, Alireza Fadaei Tehrani, Ali Z. Hamadani i Aminollah Mohammadi. "Experimental Investigation of Surface Roughness in Cylindrical Wire Electro Discharge Machining (CWEDM)". W ASME 2008 International Manufacturing Science and Engineering Conference collocated with the 3rd JSME/ASME International Conference on Materials and Processing. ASMEDC, 2008. http://dx.doi.org/10.1115/msec_icmp2008-72604.

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In this paper the effects of machining parameters on the surface roughness (Ra) in cylindrical wire electro discharge machining (CWEDM) are investigated. CWEDM is a new technology in which a rotary axis is added to a usual Wire EDM machine. In this process, a new machining parameter, such as rotational speed, is introduced, which changes the normal machining conditions in conventional wire electrical discharge machining (WEDM). Current paper investigates the effects of main parameters of CWEDM including power, voltage, pulse-off time, rotation speed of rotary axis and form factor (cone angle) on the surface roughness in CWEDM. This has been done by means of the technique of design of experiments (DOE); the three levels fractional factorial method (3k−p) was used for studying the selected factors which allows us to carry out the above-mentioned analysis performing a relatively small number of experiments. Analysis of Variance (ANOVA) has been used to determine significant factors; also an equation based on data regression has been presented. Results from ANOVA show that power is a significant variable to surface roughness of cylindrical wire-EDMed AISI D3 cold worked steel parts. The surface roughness of test specimen increased as power and voltage increased and pulse off time and rotation speed decreased. Surfaces of the cylindrical WEDM parts were examined using Scanning Electron Microscopy (SEM) to identify the macro-ridges and craters on the surface. Cross-sections of the EDM parts are examined using the SEM to quantify the sub-surface recast layers and heat-affected zones under various process parameters and to determine their relation with surface roughness of parts.
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Balcers, Ojars, Ulises Miranda i Rita Veilande. "Density Functional Theory Calculated Raman Spectra of Ergocalciferol (Vitamin D2) and Cholecalciferol (D3)". W Applied Industrial Spectroscopy. Washington, D.C.: OSA, 2021. http://dx.doi.org/10.1364/ais.2021.jw2a.5.

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