Gotowe bibliografie tematyczne / ABRASIVE FLOW MACHINING (AFM)

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Gotowa bibliografia na temat „ABRASIVE FLOW MACHINING (AFM)”

Autor: Grafiati

Data publikacji: 11 września 2023

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Artykuły w czasopismach na temat "ABRASIVE FLOW MACHINING (AFM)"

Nowacka, Agnieszka, i Tomasz Klepka. "Influence of Machining Conditions on Friction in Abrasive Flow Machining Process – A Review". MATEC Web of Conferences 357 (2022): 03007. http://dx.doi.org/10.1051/matecconf/202235703007.

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This paper presents a rage of variable machining factors which influence substantially friction directly or by the abrasive media wear developed in the cutting zone. Abrasive flow machining is method of machining surfaces of complex holes and curved surface. In the case of traditional stream treatment methods abrasive (AFM) it is difficult to obtain a uniform roughness radial decomposition during polishing complicated openings, which results from uneven distribution of abrasive forces. The group of direct factors include the work piece materials and abrasive media, changes in the fluid pressure, number of flow cycles, the medium flow frequency. In addition, it was proposed modifications in the amount and size of grains abrasives filling the abrasive medium to increase the value of the grain pressure force on the surface to be processed and obtained an even surface of complex holes in the process AFM processing. Special attention was paid to the abrasive media wear evolution and its pronounced effect on changes of the contact conditions. The experiment results also confirm that the rise in the medium flow frequency during the process will not affect the roughness changes work piece surface.

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Williams, R. E. "Acoustic Emission Characteristics of Abrasive Flow Machining". Journal of Manufacturing Science and Engineering 120, nr 2 (1.05.1998): 264–71. http://dx.doi.org/10.1115/1.2830123.

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Abrasive Flow Machining (AFM) is a nontraditional finishing process that deburrs and polishes by forcing an abrasive-laden viscoelastic polymer across the workpiece surface. Current applications include improvement in air and fluid flow for cylinder heads, intake manifold runners and injector nozzles. Present manufacturing methods include a series of flow test and AFM operations which require significant material handling and operator adjustment. An effective on-line monitoring and adaptive control system for AFM is needed. This paper reports on the development of an acoustic emission (AE) based monitoring strategy and the AE characteristics of abrasive flow machining. Initial results showed AE to be a viable sensing method for determining the performance characteristics of AFM for simple extrusion passage geometries in a selected part design. The root mean square (RMS) voltage of the AE signal was mainly determined by the metal removal and related AFM process parameters. Frequency decomposition of the AE signals revealed distinct frequency bands which have been related to the different material removal modes in AFM and to the workpiece material. Research was also performed on the application of AFM to finish orifices of varying sizes. Extremely high correlations were found between the AE signal and both the orifice diameter and the volumetric flow rate. Work is continuing with the equipment manufacturer and key industrial users to apply the monitoring strategy as part of a prototype Flow Control AFM.

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Wu, Li Sheng, i Ji Yuan Zhang. "Study on Abrasive Flow Machining Pipe Inner Surface". Advanced Materials Research 332-334 (wrzesień 2011): 2014–17. http://dx.doi.org/10.4028/www.scientific.net/amr.332-334.2014.

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For it is difficult to machining inner surface of small diameter pipes, abrasive flow machine (AFM) had been tested to polish the inner surface. Pipe inner surface AFM experiment and AFM defects remove experiment were carried out on MB9211 AFM machine, and conclusions were obtained that AMF is a very effective process to polish pipe inner surface, roughness significantly reduce after processing and can remove certain surface defects.

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Jain, V. K., i S. G. Adsul. "Experimental investigations into abrasive flow machining (AFM)". International Journal of Machine Tools and Manufacture 40, nr 7 (maj 2000): 1003–21. http://dx.doi.org/10.1016/s0890-6955(99)00114-5.

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Kumar, S. Santhosh, i Somashekhar S. Hiremath. "A Review on Abrasive Flow Machining (AFM)". Procedia Technology 25 (2016): 1297–304. http://dx.doi.org/10.1016/j.protcy.2016.08.224.

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Dhull, Sachin, i R. S. Walia. "Study of magnetic assisted-AFM, mechanical properties of various abrasive laden polymer media and abrasive wear and force mechanism". International Journal of Advance Research and Innovation 4, nr 1 (2016): 230–38. http://dx.doi.org/10.51976/ijari.411633.

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Abrasive flow machining (AFM), also known as extrude honing, is a method of smoothing and polishing internal surfaces and producing controlled radii. A one-way or two-way flow of an abrasive media is extruded through a work piece, smoothing and finishing rough surfaces. In one-way systems, we flow the media through the work piece, then it exits from the part. In two-way flow, two vertically opposed cylinders flow the abrasive media back and forth. In the paper, the various types of abrasive laden polymer media, their work piece applications as well as the compatibility with the abrasives used is explained. The properties of the polymer used in AFM are compared and the best combination of polymer, abrasive and hydrocarbon oil is selected. Apart from polymer properties, the media flow equations, abrasive wear and forces is also studied.

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Xie, Wen Bing, Ke Hua Zhang, Si Wei Zhang i Biao Xu. "Research on Abrasive Flow Machining for the Outer Rotor of Cycloidal Pump". Key Engineering Materials 546 (marzec 2013): 50–54. http://dx.doi.org/10.4028/www.scientific.net/kem.546.50.

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Abstract. In order to reduce the surface roughness and improve the manufacturing precision of the outer rotor surface of the cycloidal pump, the method that outer rotor tooth surface on the abrasive flow machining (AFM) is adopted. First of all, a power-law model to describe the form of abrasive flow was created, simulation analysis on AFM for the external rotor tooth surface, and the distribution of shear stress that the boundary layer abrasive subjected near the various parts of the outer rotor tooth surface can be draw. Then, choose abrasives with different particle size for processing. Experimental results demonstrate that tooth top, tooth surface and tooth root surface roughness Ra of the outer rotor from the 2.48um 2.192um and 2.107um down to processed 0.054um, 0.094um and 0.185um, material removal is 0.4g. AFM method can improve the manufacturing precision of the outer rotor, reduce the radial tooth tip meshing gap, reduce friction and wear of the tooth surface, extend the working life of cycloidal pump.

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Liu, Wei Na, Shi Min Xie, Li Feng Yang i Lei Zhao. "Design for Experiment Device for Abrasive Flow Machining Based on Pro/E and ANSYA". Advanced Materials Research 197-198 (luty 2011): 69–73. http://dx.doi.org/10.4028/www.scientific.net/amr.197-198.69.

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Abrasive flow machining (AFM) is an effective way to the irregular surface and internal structure of parts polished, debarred, filleted finish machining and so on. Presently abrasive flow machining is primarily applied for aviation, aero-plane in China, but it hasn’t been used widely. Because there are still many technical problems to be solved, such as: the studies on AFM equipment, preparation of abrasive and cutting mechanism. In order to further improvement of AFM technology, a lot of experimental research should be done. In this paper, by Pro/E design for the experimental device, and by ANSYS analysis of mechanical properties, and finally the test device can be verified to meet the test requirements, and achieve the test successfully.

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Nowacka, Agnieszka, i Tomasz Klepka. "The application of polymers as abrasive media in abrasive flow machining". Mechanik 92, nr 4 (8.04.2019): 234–37. http://dx.doi.org/10.17814/mechanik.2019.4.32.

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The characteristics of the products’ treatment by the abrasive flow machining (AFM) makes it an appropriate method of finishing the surface with complex geometry, e.g. holes or channels. Traditional methods of machining cause difficulties in obtaining a homogeneous roughness during finishing complicated shapes due to uneven distribution of abrasive forces. Due to the high price of abrasive media, not every user can afford for using it for processing. In the frame of the research, the novelty abrasive media has been developed to improve the surface roughness of the elements of polymer products. The use of viscoelastic polymers as a media of flow abrasive machining was discussed. Moreover, it is suggested to modify the quantity and size of abrasive grains filling the abrasive media in order to increase the value of the grain pressure force on the machined surface and to obtain an even surface of complex holes in AFM process.

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Williams, R. E., i K. P. Rajurkar. "Stochastic Modeling and Analysis of Abrasive Flow Machining". Journal of Engineering for Industry 114, nr 1 (1.02.1992): 74–81. http://dx.doi.org/10.1115/1.2899761.

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Finishing operations in the metal working industry represent a critical and expensive phase of the overall production process. A new process called Abrasive Flow Machining (AFM) promises to provide the accuracy, efficiency, economy, and the possibility of effective automation needed by the manufacturing community. The AFM process is still in its infancy in many respects. The process mechanism, parametric relationships, surface integrity, process control issues have not been effectively addressed. This paper presents preliminary results of an investigation into some aspects of the AFM process performance, surface characterization, and process modeling. The effect of process input parameters (such as media viscosity, extrusion pressure, and number of cycles) on the process performance parameters (metal removal rate and surface finish) are discussed. A stochastic modeling and analysis technique called Data Dependent Systems (DDS) has been used to study AFM generated surface. The Green’s function of the AFM surface profile models provides a “characteristic shape” that is the superimposition of two exponentials. The analysis of autocovariance of the surface profile data also indicates the presence of two real roots. The pseudo-frequencies associated with these two real roots have been linked to the path of the abrasive grains and to the cutting edges of the grain. Furthermore, expressions have been proposed for estimating the abrasive grain wear and the number of grains actively involved in cutting with a view towards developing indicators of media batch life. A brief introduction to the AFM process and related research is also included in this paper.

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Rozprawy doktorskie na temat "ABRASIVE FLOW MACHINING (AFM)"

DHULL, SACHIN. "INVESTIGATION OF HYBRID ELECTROCHEMICAL AND MAGNETIC FIELD ASSISTED ABRASIVE FLOW FINISHING PROCESS". Thesis, DELHI TECHNOLOGICAL UNIVERSITY, 2021. http://dspace.dtu.ac.in:8080/jspui/handle/repository/18780.

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The current scenario of industrialization requires need for higher productivity which is met by advanced material removal process, i.e., abrasive flow machining (AFM) in which the internal surfaces of the workpiece is machined to higher accuracy level with the help of abrasive laden media. In this paper, the conventional AFM setup has been made hybrid using electrolytic and magnetic force arrangement alongwith rotational effect in order to achieve better results in terms of material removal and surface roughness. The newly developed in-house polymer media were utilized in the process and the input parameters taken during experimentation were magnetic flux, electrolytic rod size and shape, rotational speed, polymer media, abrasive particles and extrusion pressure. It was found that the material removal and surface roughness improvement were more in electrochemo magneto rotational AFM process compared to conventional AFM process. The experimental values were in confirmation with those obtained in the optimization techniques applied, i.e., Taguchi L9 OA, Matlab fuzzy logic and GRA-PCA. In addition, the hybrid mathematical model was developed and effect of different forces occurring in the process and computational flow analysis of media have been explained. With advent of need for fast productivity in terms of material removal and surface roughness of the workpiece, abrasive flow machining (AFM) process is gaining rapid importance in the industries. In this process, the fine finishing of the internal surfaces is done that are difficult to reach spaces using abrasive laden polymer media. The media is extruded past the surface under high pressure with the help of two sets of extrusion piston cylinder arrangements. Further various innovations done in the field of abrasive flow machining have been studied in detail in a tabulated form. It included the applications of the process and the different variant forms of AFM process. Hence it can be concluded that this form of non conventional machining process is efficient both in terms of surface roughness and material removal. The SBR media resulted in maximum material removal during experimentation, i.e., 3.88 mg when input parameters, i.e., electrolytic voltage, number of extrusion cycles and pressure were taken as 18 V, 4 and 10 bar respectively. The NR, NTR and SR media had intermediate effect of material removal but minimum removal of material was achieved in case of PBS media, i.e., 2.39 mg at 6 V voltage, 6 number of cycles and 30 bar pressure. The material removal was first increased with higher rod size but afterwards its increase was lesser. The surface plots obtained from RSM technique showed that MR obtained was 2.25 mg at 21 bar pressure and 7 number of cycles. As compared to conventional AFM setup, it was found that in EMR-AFM setup, 34.5 % and 17.8 % improvement in % Ra and material removal, respectively, was obtained. It was found that MR was approximately 2.9 mg on an average when machining was done on traditional AFM process, while it increased upto 4.5 mg in prepared hybrid machine setup.

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Howard, Mitchell James. "Development of a machine-tooling-process integrated approach for abrasive flow machining (AFM) of difficult-to-machine materials with application to oil and gas exploration componenets". Thesis, Brunel University, 2014. http://bura.brunel.ac.uk/handle/2438/9262.

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Abrasive flow machining (AFM) is a non-traditional manufacturing technology used to expose a substrate to pressurised multiphase slurry, comprised of superabrasive grit suspended in a viscous, typically polymeric carrier. Extended exposure to the slurry causes material removal, where the quantity of removal is subject to complex interactions within over 40 variables. Flow is contained within boundary walls, complex in form, causing physical phenomena to alter the behaviour of the media. In setting factors and levels prior to this research, engineers had two options; embark upon a wasteful, inefficient and poor-capability trial and error process or they could attempt to relate the findings they achieve in simple geometry to complex geometry through a series of transformations, providing information that could be applied over and over. By condensing process variables into appropriate study groups, it becomes possible to quantify output while manipulating only a handful of variables. Those that remain un-manipulated are integral to the factors identified. Through factorial and response surface methodology experiment designs, data is obtained and interrogated, before feeding into a simulated replica of a simple system. Correlation with physical phenomena is sought, to identify flow conditions that drive material removal location and magnitude. This correlation is then applied to complex geometry with relative success. It is found that prediction of viscosity through computational fluid dynamics can be used to estimate as much as 94% of the edge-rounding effect on final complex geometry. Surface finish prediction is lower (~75%), but provides significant relationship to warrant further investigation. Original contributions made in this doctoral thesis include; 1) A method of utilising computational fluid dynamics (CFD) to derive a suitable process model for the productive and reproducible control of the AFM process, including identification of core physical phenomena responsible for driving erosion, 2) Comprehensive understanding of effects of B4C-loaded polydimethylsiloxane variants used to process Ti6Al4V in the AFM process, including prediction equations containing numerically-verified second order interactions (factors for grit size, grain fraction and modifier concentration), 3) Equivalent understanding of machine factors providing energy input, studying velocity, temperature and quantity. Verified predictions are made from data collected in Ti6Al4V substrate material using response surface methodology, 4) Holistic method to translating process data in control-geometry to an arbitrary geometry for industrial gain, extending to a framework for collecting new data and integrating into current knowledge, and 5) Application of methodology using research-derived CFD, applied to complex geometry proven by measured process output. As a result of this project, four publications have been made to-date – two peer-reviewed journal papers and two peer-reviewed international conference papers. Further publications will be made from June 2014 onwards.

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Henderson, Alistair. "Abrasive flow machining of nickel based alloys". Thesis, University of Nottingham, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.422738.

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Davies, Peter John. "The rheological and honing characteristics of polyborosiloxane/grit mixtures". Thesis, Sheffield Hallam University, 1993. http://shura.shu.ac.uk/3165/.

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Abrasive Flow Machining, (AFM), is a non-traditional machining process that is achieved by extruding polyborosiloxane, (a viscoelastic polymer), containing abrasive grit additions, across surfaces, edges, and through component cavities. The AFM process is a complex one and its machining mechanism is still only partially understood since previous research into the process has mainly been limited to qualitative study. The present work undertook to investigate the relationship between the rheological characteristics of polyborosiloxane/grit mixtures and the associated machining parameters. A significant increase in the quantitative data available with respect to both the rheological and machining characteristics of these mixtures has been provided as a consequence of the investigations. Experiments were conducted using low viscosity, (LV), medium viscosity, (MV), and high viscosity, (HV), polyborosiloxane base media, in conjunction with silicon carbide abrasive grit of 60 and 100 Mesh size; the ratios of grit to base polymer utilised in the experiments were 0,1, and 2. The test pieces used in the experimental work were mild steel dies having a diameter of 15mm and a length of 1 5mm, and the equipment used to conduct the experiments was an Extrude Hone mark 7A machine. The investigations conducted have revealed that for all polymer/grit mixtures an increase in the number of extrusion cycles results in an increase in the stock removed, an improvement in the surface roughness, and an increase in the temperature of the mixture. Furthermore as the usage of the medium increases the grit particle wear increases so that there is a corresponding decrease in the machining parameters. For all mixtures there appears to be no correlation between the viscosities of the base media types and the machining parameters. However, a relationship is demonstrated between the machining parameters and variations in the viscosities of the grit/polymer mixtures based on a specific polymer base. The factors that appear to influence this relationship are the grit to polymer ratio, the grit size, and the temperature. The most important of these parameters are suggested to be the grit to polymer ratio and temperature since these variables appear to affect the viscosity behaviour and the associated machining parameters. In addition the investigations showed that the viscosities and associated rheological dependent parameters correspond to the qualitative viscosity nomenclature given to the different media types by the manufacturer. A shear history effect is also exhibited in each of the polymer types.

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James, Sagil. "Study of Vibration Assisted Nano Impact-Machining by Loose Abrasives (VANILA)". University of Cincinnati / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1427962995.

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Kurd, Michael Omar 1982. "The material and energy flow through the abrasive waterjet machining and recycling processes". Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/32766.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2004.
Includes bibliographical references (p. 109-111).
The purpose of this thesis was to investigate the material and energy flow through the abrasive waterjet machine and the WARD recycling machine. The goal was to track all of the material, water, abrasive, energy, air, and tooling through the different components of the machining and recycling processes. The material removal was found to be a function of length and part geometry, while all of the other variables were simply a function of time. The cutting speed determines the abrasive use, water use, and power use, and is varied based on the material, geometry, thickness and cut quality. The cutting speed was found to be linear with machineability--a measure of the material, almost linear with hardness--inversely related to thickness, somewhat inversely related to quality, and linear with power. Water was found to be the most abundant consumable, following by abrasive, together making up over 99% of the output waste. In the recycling process, roughly 60% of abrasive can be recycled after a single use, with the only significant consumable being power, used to dry the moist abrasive. Replacement tooling on both the abrasive waterjet and the WARD recycling unit were found to be negligible compared to the large amount of abrasive sludge produced every minute.
by Michael Omar Kurd.
S.B.

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Jones, Andrew R. "Ultrasonic abrasive flow machining of closed dies : modelling of the dynamic pressure distribution within ultrasonically energised, polymer suspended abrasive and investigation of the polishing of closed dies". Thesis, University of Bradford, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.694063.

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Gilmore, Rhys. "An Evaluation of Ultrasonic Shot Peening and Abrasive Flow Machining As Surface Finishing Processes for Selective Laser Melted 316L". DigitalCommons@CalPoly, 2018. https://digitalcommons.calpoly.edu/theses/1935.

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Additive Manufacturing, and specifically powder bed fusion processes, have advanced rapidly in recent years. Selective Laser Melting in particular has been adopted in a variety of industries from biomedical to aerospace because of its capability to produce complex components with numerous alloys, including stainless steels, nickel superalloys, and titanium alloys. Post-processing is required to treat or solve metallurgical issues such as porosity, residual stresses, and surface roughness. Because of the geometric complexity of SLM produced parts, the reduction of surface roughness with conventional processing has proven especially challenging. In this Thesis, two processes, abrasive flow machining and ultrasonic shot peening, are evaluated as surface finishing processes for selective laser melted 316L. Results of these experiments indicate that AFM can reliably polish as-built internal passages to 1 µm Ra or better but is unsuitable for passages with rapidly expanding or contracting cross-sections. AFM can also polish relatively small passages, but lattice components may prove too complex for effective processing. USP cannot achieve such low surface roughness, but it is a versatile process with multiple advantages. Exterior surfaces were consistently processed to 1.7 to 2.5 µm Ra. Interior surfaces experienced only partial processing and demonstrated high geometric dependence. USP significantly hardened the surface, but steel media hardened the surface better than ceramic media did. Both AFM and USP are recommended processes for the surface finishing of SLM manufactured parts. Good engineering judgement is necessary to determine when to use these processes and how to design for post-processing.

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KUMAR, PRADEEP. "STUDY ON ABRASIVE FLOW MACHINING OF CAST IRON". Thesis, 2016. http://dspace.dtu.ac.in:8080/jspui/handle/repository/14445.

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In AFM process there is a mixture of abrasive particles and a polymer based carrier in a typical proportion which is extruded under pressure through or across the surface to be machined. The media acts as a flexible brush which is responsible for carrying out the cutting action. AFM is very effective for internal and complicated surfaces. A number of improved versions of AFM have been developed to enhance the material removal rate during machining, to machine the intricate shape and for faster reduction of surface roughness. In the present study, a drill bit assisted AFM process is used. In this process a stationary drill bit of a particular shape is held inside the work piece. Drill bit performs two functions; firstly it increases the pressure of media and secondly it provides a particular kind of flow. A particular kind of flow is the combination of three flows (straight reciprocating motion, flute flow along the profile of the drill bit and scooping flow), selfdeformability of the medium leading to intermixing of abrasives in the finishing region and the presence of an additional force on the abrasives that result in more material removal rate and high surface finish. In the present investigation, three profiles of drill bit - a spline, two-start and three- start helical profile have been used for experiments and to study the effect of these profiles on various response parameters such as reduction of surface roughness and material removal of workpiece (Cast Iron). L9 orthogonal array based on the Taguchi method has been used to study the effect of the drill bit and other main AFM process parameters. The main parameters are shape of the drill bit rod (H), number of cycles (n) and extrusion pressure (p) that have been selected at three levels considering no interaction among them. All the three process parameters have significant effect on the material removal rate and the result shows type of drill bit has maximum contribution. For reduction of surface roughness, the process parameters extrusion pressure and number of cycle are significant with the latter having maximum contribution whereas type of drill bit has been found to be insignificant. The experimental results show the maximum improvement in surface finish is 28.12% on the inner cylindrical surface of the cast iron work piece with the initial roughness 6.2 micron and the final value being 4.45 micron.

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BHARDWAJ, ANANT. "COMPUTATIONAL AND EXPERIMENTAL ANALYSIS OF PARAMETERS IN CENTRIFUGAL FORCE ASSISTED ABRASIVE FLOW MACHINING PROCESS". Thesis, 2019. http://dspace.dtu.ac.in:8080/jspui/handle/repository/19746.

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Centrifugal force assisted abrasive Flow machining has played a vital role in improving the efficiency of the traditional abrasive flow machining process. It has readily kept its stands against the disadvantage of abrasive flow machining and has proven itself as an essential alternative against AFM process. In this works three different rods of different shape (rectangular, triangular and circular) are rotated in the centrifugal force assisted abrasive flow machining setup and the amount of MR (material Removal) and the quality of the surface finish have been observed. ANSYS 15.0 are used for the computational analysis of the centrifugal force assisted AFM process. The three rods are separately modeled and are tested for the same condition and found that pressure on the work piece which is a measure of the material removal is more for the rectangular rod. In order to validate the simulation results, Taguachi optimization technique was used in which the initial reading of material removal was taken by measuring weight and the initial reading of surface Roughness was taken by Taylor Hobson tally surf. After performing the experiment, it was found that for material removal the optimum value would be 300 RPM of rectangular rod speed, extruded with 6 numbers of cycles. And for the percentage improvement in surface finish the optimum values were 200 RPM of triangular rod in which media is extruded to 9 numbers of cycles. Evidently it was found that both the simulation and the experiment justify the centrifugal-force assisted AFM as the suitable mode for finishing operation with the use of suggested Process parameters.

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Części książek na temat "ABRASIVE FLOW MACHINING (AFM)"

Ionescu, N., D. Ghiculesc, A. Visan i V. Avramescu. "Abrasive Flow Machining". W Nanostructures and Thin Films for Multifunctional Applications, 551–68. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-30198-3_18.

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Rana, Vivek, Anand C. Petare i Neelesh Kumar Jain. "Advances in Abrasive Flow Finishing". W Materials Forming, Machining and Tribology, 147–81. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-43312-3_7.

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Uhlmann, E., V. Mihotovic, H. Szulczynski i M. Kretzschmar. "Developing a Process Model for Abrasive Flow Machining". W Burrs - Analysis, Control and Removal, 73–78. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-00568-8_8.

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Venkatesh, G., Tarlochan Singh, Apurbba Kumar Sharma i Akshay Dvivedi. "Finishing of Micro-channels Using Abrasive Flow Machining". W Lecture Notes in Mechanical Engineering, 243–52. New Delhi: Springer India, 2014. http://dx.doi.org/10.1007/978-81-322-1859-3_22.

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Fletcher, A. J., J. B. Hull, J. Mackie i S. A. Trengove. "Computer Modelling of the Abrasive Flow Machining Process". W Surface Engineering, 592–601. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-0773-7_59.

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Jindal, Anil, Sushil Mittal i Parlad Kumar. "The Magnetically Assisted Abrasive Flow Machining Process: Review". W Lecture Notes in Mechanical Engineering, 229–39. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-0909-1_23.

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Singh, Palwinder, Lakhvir Singh i Sehijpal Singh. "Mechanism of Material Removal in Magneto Abrasive Flow Machining". W Lecture Notes in Mechanical Engineering, 225–38. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-0550-5_20.

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Dhull, Sachin, Qasim Murtaza, R. S. Walia, M. S. Niranjan i Saloni Vats. "Abrasive Flow Machining Process Hybridization with Other Non-Traditional Machining Processes: A Review". W Proceedings of International Conference in Mechanical and Energy Technology, 101–9. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-2647-3_10.

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Bhardwaj, Anant, Parvesh Ali, R. S. Walia, Qasim Murtaza i S. M. Pandey. "Development of Hybrid Forms of Abrasive Flow Machining Process: A Review". W Lecture Notes in Mechanical Engineering, 41–67. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-6412-9_5.

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Jandačka, Petr, Jiří Ščučka, Petr Martinec, Miloslav Lupták, Ivan Janeček, S. M. Mahdi Niktabar, Michal Zeleňák i Petr Hlaváček. "Optimal Abrasive Mass Flow Rate for Rock Erosion in AWJ Machining". W Lecture Notes in Mechanical Engineering, 81–90. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-53491-2_9.

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Streszczenia konferencji na temat "ABRASIVE FLOW MACHINING (AFM)"

Perry, Winfield B., i John Stackhouse. "Gas Turbine Applications of Abrasive Flow Machining". W ASME 1989 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1989. http://dx.doi.org/10.1115/89-gt-165.

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Abrasive Flow Machining (AFM) is a non-traditional finishing method used for precision deburring, edge contouring, surface improvement and the removal of abusive machining and thermal recast layers. A firm-bodied abrasive laden compound is flowed at pressures of 75–500 psi (5–35 bar) across selective features of a fixtured workpiece. Gas turbine components benefited by this method include: axial and centrifugal rotors, stators, turbine blades, compressor and turbine disks, shafts, seals and other rotating parts. AFM process principles are explained and specific applications are reviewed.

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Brar, B. S., R. S. Walia, V. P. Singh i P. Singh. "Effects of Helical Rod Profiles in Helical Abrasive Flow Machining (HLX-AFM) Process". W ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-53711.

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Abrasive flow machining (AFM) process is a fine finishing process employing abrasive laden self modulating putty for the finishing of mainly internal recesses. Though the AFM is suitable for the finishing of internal cavities, but the material removal is very low during this finishing process. Helical abrasive flow machining (HLX-AFM) has been recently developed to improve the machining efficiency of AFM process. This process employs a coaxially fixed helical twist drill-bit during the extrusion of the abrasive laden media through an internal cylindrical recess. The presence of a fixed drill-bit inside a cylindrical cavity of the work-piece results in considerable increase in material removal and improvement in surface finish. In the present investigation, the same HLX-AFM setup has been used and the effects of two more helical profile rods viz. a 3-start helical profile and a spline have been studied along with the helical twist drill-bit for improving the quality characteristics of material removal and percentage improvement in the surface roughness during the fine finishing of internal cylindrical surface of brass work-pieces. The experiments were planned according to L9 orthogonal array of Taguchi method and the optimal process parameters were selected. The employment of a rod with six splines and a 3-start helical profile results in improved finishing in comparison to the drill-bit profile, due to the presence of more number of flutes and grooves on the coaxially held stationary rods. The helical profile type has 3.75% contribution towards the percentage improvement in the surface roughness, but is not significant in affecting material removal. The presence of 3-start helical profile led to 61.40% improvement in surface roughness (from Ra - 1.3 μm to 0.5 μm) at optimal level with no effect on material removal, which means no extra machining is taking place. The parameter of abrasive-to-media concentration ratio (varying from 0.75 to 1.25) is the most contributing factor with 85.90% contribution toward suface finish improvement and 71.71% contribution towards material removal. The finishing performance of 3-start profile is 15% better than the standard helical drill-bit with no increase in the operating pressures. SEM micrographs corroborated the fact that 3-start profile led to more number of light abrasive cutting grooves and thus more surface finish. HLX-AFM with 3-start helical profile rods can be employed for the finishing, form corrections of internal cylindrical cavities of any size. Presence of the profile rod results in increase in the reduction ratio and thus more machining action. The developed process can also generate cross-hatch lay pattern on internal cylindrical surfaces.

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Howard, Mitchell J., i Kai Cheng. "Energy and Resource Efficiency in the Abrasive Flow Machining Process: An Assessment of Environmental and Economic Viability Within a UK Precision Machining SME". W 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/detc2014-34110.

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Environmental performance of the abrasive flow machining (AFM) process is currently not well understood. Its flexibility as a manufacturing process has only recently been realised in SMEs (Small to Medium Enterprise) as a feasible automated alternative to deburring and polishing of complex geometry by hand, and as an alternative to honing and grinding using semi-automated machinery. [1–3] Economic benefit is still the main driver in the commercial uptake of environmentally-sustainable technologies [4, 5]; despite AFM’s known flexibility and capability, this paper presents systematic research by focusing on AFM including, 1) assessing and comparing the requirements of competing processes (values sourced from [6]), 2) their power consumption, 3) operating conditions, 4) cost of pre-requisite ancillary equipment and 5) embodied energy and recyclability of machine structures and consumables. Three workpiece scenarios are laid out (distinguished by feature-count, processing time, tolerance-demands and setup-count) for comparison purposes — the trade-off between environmental and economic cost is described with reference to industrially-significant quality measures such as repeatability, accuracy, precision and uniformity. Key findings in this research include the comparatively high energy demand from natural gas-fired warm air blow-heaters, a requirement for the heating of spaces for human labour activity. Performance is shown to be limited by design — the AFM machine in this study operates with only an additional 22% of current between idle mode and production mode [7] suggesting sub-assembly redesign may be of benefit. To conclude, the AFM process offers a clear route to sustainable part-finishing, low-maintenance and high potential for ‘greening’ considering factors in addition to running cost.

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Kumar, S. Naga, P. Sasidhar, M. Rajyalakshmi i K. I. Vishnu Vandana. "Experimental Investigation of Optimization of Machining Parameters in Abrasive Water Jet Machining". W 1st International Conference on Mechanical Engineering and Emerging Technologies. Switzerland: Trans Tech Publications Ltd, 2022. http://dx.doi.org/10.4028/p-2ov163.

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Now a days, Non-Conventional Machining process is gaining more attention by the researchers. Abrasive Water jet machining (AWJM) is one of such machining process where material is removed with abrasive slurry as cutting tool. The present work discuss about the development of an optimal solution for minimizing surface roughness using a response surface methodology (RSM) while machining of EN grade steel. The machining parameters considered for the study are Abrasive Grain Size (AGS) and Hydraulic Pressure (HP) and Stand Off Distance (SOD) and the Abrasive Flow Rate (AFR). The response parameter is surface roughness (Ra). The experiments are performed based on the Box-Behnken design. Additionally, the significance of the developed optimization design has been identified using analysis of variance (ANOVA). Finally, the validity and adequacy of the developed model are done through confirmation tests. Key Words: Abrasive Water jet Machining, Response Surface Methodology, Optimization, ANOVA

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null. "Ultrasonic machining and abrasive flow machining". W IEE Colloquium on Microengineering Technologies and How to Exploit Them. IEE, 1997. http://dx.doi.org/10.1049/ic:19970432.

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RHOADES, L., i J. GILMORE. "NEW DIRECTIONS FOR ABRASIVE FLOW MACHINING". W Proceedings of the Third International Conference on Abrasive Technology (ABTEC '99). WORLD SCIENTIFIC, 1999. http://dx.doi.org/10.1142/9789812817822_0043.

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Junye Li, Weina Liu, Lifeng Yang, Chun Li, Bin Liu, Haihong Wu i Xiaoli Sun. "Design and simulation for mico-hole abrasive flow machining". W 2009 IEEE 10th International Conference on Computer-Aided Industrial Design & Conceptual Design. IEEE, 2009. http://dx.doi.org/10.1109/caidcd.2009.5374887.

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Lu, Hui, Junye Li, Zengwei Zhou, Guiling Wu i Zhihuai Sun. "Numerical analysis of special-shaped surface in abrasive flow machining". W Young Scientists Forum 2017, redaktorzy Songlin Zhuang, Junhao Chu i Jian-Wei Pan. SPIE, 2018. http://dx.doi.org/10.1117/12.2316304.

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Maity, K. P., i K. C. Tripathy. "Modelling and Optimization of Abrasive Flow Machining of Al Alloy". W Proceedings of the 4M/ICOMM2015 Conference. Singapore: Research Publishing Services, 2015. http://dx.doi.org/10.3850/978-981-09-4609-8_111.

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Duong, Nick H., J. Ma i Shuting Lei. "FEM Investigation of the Effects of Impact Speed and Angle of Impacts of Abrasive in the Vibration Assisted Nano Impact Machining by Loose Abrasives". W ASME 2017 12th International Manufacturing Science and Engineering Conference collocated with the JSME/ASME 2017 6th International Conference on Materials and Processing. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/msec2017-3043.

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In this paper, the commercial FEM software package Abaqus is employed to model the novel nanomachining process, Vibration Assisted Nano Impact machining by Loose Abrasives (VANILA), which combines the principles of vibration-assisted abrasive machining and tip-based nanomachining to conduct nano abrasive machining of hard and brittle materials. In this novel nanomachining process, an atomic force microscope (AFM) is used as a platform and the nano abrasives injected in slurry between the workpiece and the vibrating AFM probe impact the workpiece and result in nanoscale material removal. Diamond particles are used as the loose abrasives. The effects of impact speed, angle of impacts, and the frictional coefficient between the workpiece and abrasives are investigated using Abaqus. It is found that the impact speed, impact angle, and frictional coefficient between the silicon workpiece and nanoabrasives have big influence on the nanocavity’s size and depth.

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