Готові списки джерел за темами / Electric discharge wire cutting

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Автор: Grafiati
Опубліковано: 30 травня 2022
Оновлено: 31 травня 2022

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Статті в журналах з теми "Electric discharge wire cutting"

1

Sugimoto, Tatsunori, Toshiya Noro, Satarou Yamaguchi, Hideyoshi Majima, and Tomohisa Kato. "Spectroscopic Measurement of Electric Discharge Machining for Silicon Carbide." Materials Science Forum 615-617 (March 2009): 609–12. http://dx.doi.org/10.4028/www.scientific.net/msf.615-617.609.

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Diamond saw is generally used to make the silicon carbide (SiC) wafers from ingots, but it takes long time for cutting. We have used the electric discharge machining (EDM) to cut SiC. The cutting speed of EDM for SiC is almost 10 times faster than the diamond saw, and the surface roughness is 1/10 for the diamond saw. EDM cut SiC by the plasma produced between the wire and SiC material. The emissions from EDM plasma may involve much information for EDM cutting. We monitored the total light intensity by a photodiode, and observed the spectrum of the emission from EDM plasma by a visible spectroscopy. The discharge gas used helium and argon. In both discharges, the light emission was observed when the current was not zero. Also, many lines were observed Si I, Si II and C I from the SiC sample, and Cu I and Zn I from the wire. And, the electron temperature of EDM plasma was estimated to be under several eV because the observed lines were almost the emission from atoms. Also, the scars, which show the copper-alloy wire was hurt by discharge, were observed from the wire.
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Yamada, Hideki, Satarou Yamaguchi, Norimasa Yamamoto, and Tomohisa Kato. "Cutting Speed of Electric Discharge Machining for SiC Ingot." Materials Science Forum 717-720 (May 2012): 861–64. http://dx.doi.org/10.4028/www.scientific.net/msf.717-720.861.

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A new method based on electric discharge machining (EDM) was developed for cutting a silicon carbide (SiC) ingot. The EDM method is a very useful technique to cut hard materials like SiC. By cutting with the EDM method, kerf loss and roughness of sample are generally smaller than those obtained by cutting with a diamond saw. Moreover, the warpage is smaller than that by the diamond saw cutting, and the cutting speed can be 10 times faster than that of the diamond saw at the present time. We used wires of 50 mm and 100 mm diameters in the experiments, and the experimental results of the cutting speed and the kerf losses are presented. The kerf loss of the 50 mm wire is less than 100 mm, and the cutting speed is about 0.8 mm/min for the thickness of a 6 mm SiC ingot. If we can maintain the cutting speed, the slicing time of a 2 inches diameter ingot would be about seven hours.
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Wang, Jing, and Ming Gui Zhou. "Processing Stability Analysis of Wire Cut Electric Discharge Machine with High Speed." Applied Mechanics and Materials 443 (October 2013): 74–78. http://dx.doi.org/10.4028/www.scientific.net/amm.443.74.

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In this article, unstable factor analysis is done in Wire cut electric discharge machine with high speed (WEDM HS), which focus on effect of processing Stability from electrical processing parameters, machine parameters, electrode wire, cutting fluid and conductive block, and how to adjust and excluding factors in order to enhance WEDM processing stability ,ensure machine parts surface quality, dimensional accuracy and processing efficiency.
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Yamamoto, Norimasa, Satarou Yamaguchi, and Tomohisa Kato. "Slicing of Rotating SiC Ingot by Electric Discharge Machining." Materials Science Forum 740-742 (January 2013): 843–46. http://dx.doi.org/10.4028/www.scientific.net/msf.740-742.843.

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A new method of electric discharge machining (EDM) is proposed for slicing a large silicon carbide (SiC) ingot in order to realize low kerf loss and fast cut. This principle is based on the rotating ingot, and it is called the rotating slicing method (RSM). It would be defecate the cutting chip effectively and one-point discharge. In this paper, we reported results of examinations of the RSM experimentally. Unstable discharge was not observed. Discharge damages on the wire surface were fewer than those of the conventional method. Net cutting speed was almost the same as the present method for the 2-inches ingot. The rotation axis of the ingot should be perpendicular to the feed direction of the wire, and it is important to fix the performance of the EDM such as the kerf loss. Roughness of the cutting surface was 3.4 µm of Ra
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5

Beaucamp, Anthony T. H., and Yoshimi Takeuchi. "Reverse Engineering Algorithm for Cutting of Ruled Geometries by Wire." International Journal of Automation Technology 16, no. 3 (May 5, 2022): 349–55. http://dx.doi.org/10.20965/ijat.2022.p0349.

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Анотація:
Abrasive wire cutting (AWC) and wire electric discharge machining (WEDM) are efficient and economical processes for the fabrication of precision parts from bulk material. Operating costs and manufacturing lead times are low compared to more general methods such as 5-axis CNC milling, turning, or electro-discharge machining. In this paper, an algorithm based on differential geometry in Euclidean space is proposed for reverse engineering of ruled geometries. The algorithm can determine whether a given geometry is producible by wire cutting, and can also derive the associated wire trajectories. Implementation is demonstrated by producing complex turbine blade geometries on 4-axis wire cutting machines with an overall shape accuracy of 20–40 μm peak-to-valley.
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Xin, Bin, and Wei Liu. "Experimental Research on Discharge Forming Cutting-Electrochemical Machining of Single-Crystal Silicon." Mathematical Problems in Engineering 2021 (August 4, 2021): 1–13. http://dx.doi.org/10.1155/2021/6024662.

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During the wire electrical discharge machining (WEDM) process, a large number of discharge pits and a recast layer are easily generated on the workpiece surface, resulting in high surface roughness. A discharge forming cutting-electrochemical machining method for fabricating single-crystal silicon is proposed in this study to solve this problem. On the same processing equipment, single-crystal silicon is first cut using the discharge forming cutting method. Second, electrochemical anodic reaction technology is used to dissolve the discharge pits and recast layer on the single-crystal silicon surface. The machining mechanism of this process, the surface elements of the processed single-crystal silicon and a comparison of the kerf width are analyzed through experiments. On this basis, the influence of the movement speed of the copper foil electrode during electrochemical anodic dissolution on the final surface roughness is qualitatively analyzed. The experimental results show that discharge forming cutting-electrochemical machining can effectively eliminate the electrical discharge pits and recast layer, which are caused by electric discharge cutting, on the surface of single-crystal silicon, thereby reducing the surface roughness of the workpiece.
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Okik Aris, Setiawan, Djumhariyanto Dwi, and Mulyadi Santoso. "OPTIMASI PARAMETER PEMESINAN WIRE ELECTRIC DISCHARGE MACHINING BAJA PERKAKAS SKD 11 MENGGUNAKAN METODE TAGUCHI." ROTOR 11, no. 2 (November 1, 2018): 33. http://dx.doi.org/10.19184/rotor.v11i2.9647.

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Анотація:
EDM wire is one of the non-conventional machinings that is currently widely used in the manufacturing industry because it can process workpieces with hard material and also produces excellent dimensional accuracy. This research was carried out with variable current, voltage and wire speed processes. While the response variable is the material removal rate and cutting width (kerf), this study aims to determine the effect of each factor on each response as well as on the combined response and to find the right combination of parameters to produce optimal response values. The results of the study stated that the current strong factor contributed 89.84% and the wire speed factor was 8.26% against the cutting width response (kerf). The current strong element contributes 87.88% to the material removal rate response. As for the combined response, the influential factor was wire speed with a contribution of 92.79%. The optimal combination of parameters in the combined response is 7 amperes, 5 volts and 10 m / s wire speed. The conclusion of this study informs that the smaller the current strength, the better the value of the cutting width, while the more significant the current force will result in a higher removal rate material. The factor that influences the combined response is wire speed, where the increase in the value of the wire speed increases the amount of the Gray Relational Grade from the combined response. Keywords: Wire EDM, SKD 11 Steel, Taguchi, Optimization
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8

Venkatarao, K., and T. Anup Kumar. "An experimental parametric analysis on performance characteristics in wire electric discharge machining of Inconel 718." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 233, no. 14 (April 4, 2019): 4836–49. http://dx.doi.org/10.1177/0954406219840677.

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Анотація:
Wire cut electrical discharge machining was identified as a good alternative to conventional machining for machining super alloys that possess low machinability. In the present work, effect of wire tension along with current, pulse on time, and pulse off time on the performance characteristics such as spark gap, surface roughness, amplitude of wire vibration, and cutting rate were studied in wire cut electrical discharge machining of Inconel 718 metal. Experiments were conducted at five levels of the process parameters as per orthogonal array of L25 and their results were collected. These experimental results were analyzed and the interaction effect of wire tension along with current, pulse on time, and pulse off time on performance characteristics was studied using analysis of variance. Response models were developed for the four responses in terms of process parameters and the accuracy of such models was tested. In addition to the above studies, effect of the wire displacement on the kerf size, cutting rate was studied. Spark energy was also estimated for all the experiments and its effect on the performance characteristics was studied. The response models developed in this study were able to predict the experimental results i.e. amplitude of wire vibration, surface roughness, cutting rate, and spark gap with an accuracy of R2 values of 1.0, 0.96, 0.88, and 0.99, respectively. Interaction effect of current and wire tension was found to have the most significant effect on the amplitude of cutter vibration and surface roughness.
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9

Shandilya, Pragya, Arun Kumar Rouniyar, and D. Saikiran. "Multi-objective parametric optimization on machining of Inconel-825 using wire electrical discharge machining." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 234, no. 20 (April 15, 2020): 4056–68. http://dx.doi.org/10.1177/0954406220917706.

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Анотація:
Wire electrical discharge machining is a thermal energy-based non-conventional machining process which can machine conductive materials with high precision. In this present work, machining of Inconel-825 was performed using wire electrical discharge machining. Multi-objective parametric optimization was performed for maximum cutting rate and minimum surface roughness using teaching–learning-based optimization, grey relational analysis, and genetic algorithm. Four wire electrical discharge machining parameters, namely spark off time (SOFF), spark on time (SON), peak current (IP), and angle of cutting (A) were considered. Comparison of optimum wire electrical discharge machining parameters through teaching–learning-based optimization, grey relational analysis, and genetic algorithm was performed. The better optimum solution for wire electrical discharge machining parameters was obtained using teaching–learning-based optimization and optimum values were at IP (1 A), SON (30 µs), SOFF (12.5 µs), and A (44.8°) with cutting rate as 19.744 mm/min and surface roughness as 1.331 µm. The optimum results obtained using optimization techniques were validated with the experimental results and error was observed to be within 5%. Moreover, response surface models were developed to predict the cutting rate and surface roughness in terms of wire electrical discharge machining parameters using analysis of variance.
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Hosseini, S. B., Uta Klement, and J. Kaminski. "Microstructure Characterization of White Layer Formed by Hard Turning and Wire Electric Discharge Machining in High Carbon Steel (AISI 52100)." Advanced Materials Research 409 (November 2011): 684–89. http://dx.doi.org/10.4028/www.scientific.net/amr.409.684.

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White layers, formed during hard turning and wire electric discharge machining, were characterized by means of X-ray diffraction, scanning electron microscopy and transmission electron microscopy. Different cutting speeds and flank wear were utilized in order to obtain different thermally and/or plastically deformed white layer. Since the white layer after wire electric discharge machining is mainly thermally induced, it was used as a reference structure. In the investigation, both bainitic and martensitic structures were studied. With a constant flank wear of 0.175 mm the thickness of the white layer increased from 1.5 μm to 3 μm as the cutting speed was increased. In both processes the white layer were characterized by nanosized grains and surface tensile residual stresses. M3C carbides were observed in the hard turned white layer, indicating that the time and temperature needed for completely dissolving the carbides were not reached during cutting. For both materials the white layers formed by wire electric discharge machining consisted of ~ 30 vol. % of retained austenite. Observation regarding the volume fraction of the retained austenite in the white layer formed by hard turning for martensitic material showed an increase in the volume fraction of retained austenite from ~ 2 - 3 vol. % to ~ 6 vol. %, while this observation was not seen in the white layer formed in the bainitic material.
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Дисертації з теми "Electric discharge wire cutting"

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Stephenson, Richard C. "Comparing the Feasibility of Cutting Thin-Walled Sections from Five Commonly Used Metals Utilizing Wire Electric Discharge Machining." Diss., CLICK HERE for online access, 2007. http://contentdm.lib.byu.edu/ETD/image/etd1948.pdf.

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Kim, Sangseop. "Determination of Wall Thickness and Height when Cutting Various Materials with Wire Electric Discharge Machining Processes." BYU ScholarsArchive, 2005. https://scholarsarchive.byu.edu/etd/294.

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This thesis looks at the capabilities of cutting thin webs on Wire EDM machines that are difficult or impossible to machine using conventional methods. Covered is an investigation of how different material and web thickness affect the capability of machining thin-walled parts. Five different metals are used for the test; Aluminum 6061 T6, Yellow Brass SS360, 420 Stainless Steel, D2 unheat-treated tool steel 25-30 RC, and D2 heat-treated tool steel 60-65 RC. The small parts were cut to a 6mm (0.2362 inch) height with six different wall thicknesses: 0.30mm (0.0118 inch), 0.25mm (0.0098 inch), 0.20mm (0.0078 inch), 0.15mm (0.0059 inch), 0.10mm (0.0039 inch), and 0.05mm (0.0020 inch). A Sodick AQ325L Wire EDM machine was utilized for testing. The methods employed during the study include the following: • Machine settings and offsets were limited to the default setting selected from the Sodick AQ325L database. • Two different pre-test cuts were taken on the material to check for web bending during the cutting process. • Hardness was tested for comparison of the web heights. This thesis shows that bending increased as webs became thinner and that bending occurred toward the wire as the second side of the web was cut. Bending does affect the height of the web. Physical properties of materials also impacted the height of the web with the hardest material staying intact during the cutting process. This study shows that two factors, physical properties of materials and web thickness, significantly affect cutting results for thin web parts.
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3

Svoboda, Jiří. "Nekonvenční technologie elektroerozivního drátového řezání." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-229332.

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This thesis deals with technology of electric discharge machining with emphasis on application of the principle of material removal on wire cut electric discharge machine. The main part is concentrated on wire cut electric discharge machining in terms of a small tool making shop. The goal of the thesis is to create a wire cut electric discharge machining workplace in the company with a focus on the production of cutting tools. The thesis defines requirements for each component of cutting tools and strategies for their machining. Machining of model part and subsequent technical - economic evaluation is included in the final part.
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4

Barabáš, Martin. "Aplikace technologie drátové elektroeroze." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231508.

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This marter’s thesis deals with the technology of electrical discharge wire cutting. There is described the basic nature of the electrical erosion, EDM principle and WEDM principle. The main part deals with the application of wire cutting in the manufacture pulley 68-8M-130 with a description of technology on the wire cutter Excetek V 650. At the end of the work is devoted to the statistical evaluation of the precision machined surfaces.
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Šedo, Václav. "Vliv nákupu brusného CNC centra na produktivitu výroby." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-379016.

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This master’s thesis familiarizes reader with technology of machine grinding – it’s history, principle, general use, related tools, achievable parameters and kinematics of grinding process. The core of work is analysis of jig-grinder Hauser H45-400, it’s kinematics, machine technical data, options and accessories. Work concludes with technical and economical assessment of machining of several parts with this machine and compares results to alternative options of machining.
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Білан, Анатолій Валентинович. "Послідовна електроерозійна та електрохімічна обробка сталей незмінним дротяним електродом". Doctoral thesis, Київ, 2013. https://ela.kpi.ua/handle/123456789/3166.

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Wong, Ming-ho Horatio, and 黃明浩. "Computer integration of the electrical discharge machining process." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2004. http://hub.hku.hk/bib/B30071653.

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Treurnicht, N. F. "High speed cutting and electric discharge machining as complementary processes in the die and mould industry." Thesis, Stellenbosch : Stellenbosch University, 2003. http://hdl.handle.net/10019.1/53448.

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Thesis (MScEng) -- Stellenbosch University, 2003.
ENGLISH ABSTRACT: High Speed Cutting (HSC), specifically milling is a significant contemporary development in machining. The Die and Mould industry is experiencing a difficult business climate. There is competitive pressure for shorter lead times and lower prices. Companies worldwide, are under financial pressure, to meet the challenges of a globalised business environment. The conventional position of milling and Electric Discharge Machining (EDM / Erosion) is discussed with the proposal to use HSC and EDM as complementary processes. Among new developments the progress in computer infrastructure is prominent. There is also a paradigm shift that should be made from experience based process planning to modern, up to date knowledge based process planning. High Speed Cutting is now a mature process capable of acceptable process security. The examples detailed include crankshaft-forging tooling, injection moulding tooling and powder sintering tooling. A process chain is proposed for the complementary HSC / EDM process with estimated illustrative time saving over the conventional EDM dominated process. HSC will be the first process removing the bulk of the material, finishing as far as possible and with EDM finally machining the features that will be difficult or impossible with HSC. To facilitate the use of the complementary processes a decision model to determine the crossover point between HSC and EDM is proposed. The decision model is firstly presented as a flow diagram to determine whether the task is a candidate for HSC only, EDM only, or the complementary HSC / EDM process. The key parameters e.g tool H d ratio are variables. This is in order that the flow diagram may be adapted to a specific machine tool infrastructure and expertise level in a company. The second part is a HSC machining time estimation model. The time is estimated per segment roughed, semi-finished, or finish machined. The model is in an empirical form with constants that can be adapted to the practices of a specific company. It is intended that the constants also be periodically revised to reflect the development in HSC expertise that will occur during the use HSC in the company. The model is practically evaluated with a case study, including the detail steps, not included in the model. Conceptual guidelines are given for software implementation. It is concluded that HSC and EDM are suitable complementary processes. It is a necessary prerequisite to use pallets to avoid multiple set-ups. Complementary HSC and EDM is especially appropriate for the gradual deployment and skill development for HSC. HSC and complementary HSC / EDM is considered the opportunity for companies to make a major breakthrough in lead time and operating expense if the necessary pallet/fixturing equipment, CAx infrastructure and human capability is available.
AFRIKAANSE OPSOMMING: Hoe Spoed Masjinering (HSC), spesifiek frees is ‘n betekenisvolle ontwikkeling in masjinering. Die Gereedskap en Gietvorm bedryf ervaar ‘n moelike besigheidsklimaat. Daar is kompeterende druk vir korter lewertye en laer pryse. Maatskappye wereldwyd is onder finansiele druk om in die geglobaliseerde besigheidsmilieu te presteer. Die posisie van frees en Elektriese Ontladingsmasjinering (EDM / Vonkerosie) word bespreek met die voorstel om HSC en EDM as komplementere prosesse te gebruik. Onder die nuwe ontwikkelings is daar prominente vooruitgang in rekenaarinfrastruktuur. Daar is ook ‘n paradigmaverskuiwing nodig van ondervinding gebaseerde na op datum kennis gebaseerde proses beplanning. HSC is nou ‘n ontwikkelde proses met voldoende prosessekerheid. Die voorbeelde sluit krukas smee gereedskap, inspuitgiet gereedskap, en poeier-sinter persgereedskap in. ‘n Prosesketting word voorgestel vir die komplementere HSC / EDM proses met ‘n beraamde illustratiewe tydbesparing oor die konvensionele EDM gedomineerde proses. HSC sal die eerste proses wees wat die meerderheid van die materiaal verwyder en oppervlaktes so ver as moontlik afwerk, met EDM wat die finale afwerking doen en ook die masjinering wat vir moeilik haalbaar of onmoontlik is vir HSC. Om die gebruik van die komplementere prosesse te fasiliteer, word ‘n beluitnemingsmodel vir die oorgangspunt tussen HSC en EDM voorgestel. Dit word eerstens as vloeidiagram gebruik om die taak te klassifiseer vir HSC alleen, EDM alleen of vir komplementere HSC en EDM. Die sleutelparameters, bv die beitel 116 verhouding, is veranderlikes. Dit is sodat die vloeidiagram aangepas kan word by ‘n spesifieke masjienvermoe en ‘n kundigheidsvlak in ‘n maatskappy. Die tweede deel is ‘n HSC masjineringstyd model. Die tyd word beraam per segment uitgerof, afgewerk, of finaal afgewerk. Die model is in empiriese vorm met konstantes wat kan aangepas word by die praktyke van ‘n firma. Dit is die bedoeling dat die konstantes periodiek aangepas word om die ontwikkeling te weerspieel wat in die maatskappy plaasvind. Die model word prakties evalueer met ‘n gevallestudie, insluitend die detailstappe, wat nie in die modelformulering ingesluit is nie. Konseptuele riglyne word gegee vir programmatuur implementering. Die gevolgtrekking word gemaak dat HSC en EDM geskikte komplementere prosesse is. Dit is ‘n voorvereiste om pallette te gebruik om veelvuldige opstellings te vermy. Komplementere HSC / EDM is veral toepaslik om HSC geleidelik in ‘n firma te ontplooi en kundigheid te bou. Die HSC / EDM kombinasie word ook die geleentheid geag vir firmas om ‘n deurbraak te maak in lewertyd en bedryfsuitgawes as die nodige pallettoerusting, CAx infrastruktuur en menslike vermoe beskikbaar is.
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Mani, Ashwini. "Study of partial discharge activity in magnet wires aged by combined stresses." Master's thesis, Mississippi State : Mississippi State University, 2005. http://library.msstate.edu/etd/show.asp?etd=etd-11072005-171152.

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Newton, Thomas Russell. "Investigation of the effect of process parameters on the formation of recast layer in wire-EDM of Inconel 718." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/22580.

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Книги з теми "Electric discharge wire cutting"

1

1961-, Sommer Steve, ed. Wire EDM manual. Houston, TX: Technical Advance Pub., 1992.

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2

Jameson, Elman C. Electrical discharge machining. Dearborn, Mich: Society of Manufacturing Engineers, Machining Technology Association, 2001.

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3

Wire-cut EDM: From purchase to profit. Cincinnati, OH: Hanser Gardner Publications, 1997.

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4

D, Rice Joe, and McKinley Clover, eds. Build an EDM: Electrical discharge machining, removing metal by spark erosion. Traverse City, MI: Village Press, 1997.

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5

Micromachining using electrochemical discharge phenomenon: Fundamentals and application of spark assisted chemical engraving. Norwich, NY, USA: W. Andrew, 2009.

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6

Electrical Discharge Machining: Types, Technologies and Applications. Nova Science Publishers, Incorporated, 2015.

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7

Wuthrich, Rolf, and Jana D. Abou Ziki. Micromachining Using Electrochemical Discharge Phenomenon: Fundamentals and Application of Spark Assisted Chemical Engraving. Elsevier, 2017.

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8

Electrical discharge machining: Conference proceedings, September 14-16, 1993, Rosemont Conference Center, Hyatt O'Hare. Cincinnati, OH: Gardner Publications, 1993.

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9

Electrical discharge machining '89: Conference proceedings, the Drawbridge Inn and Convention Center, Greater Cincinnati Airport area. Cincinnati, Ohio: Gardner Publications, 1989.

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Частини книг з теми "Electric discharge wire cutting"

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Manoj, I. V., and S. Narendranath. "Effect of Profile Geometry and Cutting Speed Override Parameter on Profiling Speed During Tapering Using Wire Electric Discharge Machining." In Lecture Notes in Mechanical Engineering, 111–22. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-2278-6_10.

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Sandeep, Manikyam, and P. Jamaleswara Kumar. "Experimental Execution Analysis of Wire Electric Discharge Machining." In Advances in Lightweight Materials and Structures, 451–60. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-7827-4_45.

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Beni, Earnest, Poovazhagan Lakshmanan, and S. C. Amith. "Wire-Cut Electric Discharge Machining on Nickel–Aluminium–Bronze Using Brass Wire Electrode." In Lecture Notes in Mechanical Engineering, 67–74. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-4745-4_7.

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Vendan, S. Arungalai, Rajeev Kamal, Abhinav Karan, Liang Gao, Xiaodong Niu, and Akhil Garg. "Supervised Machine Learning in Wire Cut Electric Discharge Machining (WEDM)." In Engineering Applications of Computational Methods, 187–245. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-13-9382-2_4.

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Le Roux, T., M. L. H. Wise, D. K. Aspinwall, and L. Blunt. "Electric Discharge Machining of Small Holes Through Polycrystalline Diamond Wire Drawing Blanks." In Proceedings of the Twenty-Ninth International Matador Conference, 533–39. London: Macmillan Education UK, 1992. http://dx.doi.org/10.1007/978-1-349-12433-6_70.

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Kumar, Jitendra, Sanghamitra Das, and Shrikrishna N. Joshi. "Three-Dimensional Numerical Modelling of Temperature Profiles on the Wire Electrode During Wire Electric Discharge Machining Process." In Advances in Mechanical Engineering, 359–71. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-0124-1_32.

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Rajkumar, K., C. Balasubramaniyan, K. Ramraji, A. Gnanavelbabu, and P. Sabarinathan. "Desirability Approach Machining Study on Aluminum Composite Through Wire-Cut Electric Discharge Technique." In Lecture Notes in Mechanical Engineering, 15–25. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-4745-4_3.

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Mahalingam, M., A. Umesh Bala, and R. Varahamoorthi. "Effect of Wire Electric Discharge Machining Process Parameters on Surface Roughness of Monel 400 Alloy." In Green Materials and Advanced Manufacturing Technology, 161–72. First edition. | Boca Raton, FL : CRC Press, 2021. | Series: Green engineering and technology: Concepts and applications: CRC Press, 2020. http://dx.doi.org/10.1201/9781003056546-11.

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Deshmukh, Swarup S., Arjyajyoti Goswami, Ramakant Shrivastava, and Vijay S. Jadhav. "Optimization of Spark Gap in Powder Mixed Wire Electric Discharge Machining through Genetic Algorithm Approach." In Materials Modeling for Macro to Micro/Nano Scale Systems, 219–43. Boca Raton: Apple Academic Press, 2022. http://dx.doi.org/10.1201/9781003180524-10.

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Yuan, Wei, Ruoyu Han, Weisheng He, Chen Li, Yuchen Cao, and Yongmin Zhang. "Influence of Circuit Parameters on Discharge Characteristics and Shock-Wave in Underwater Electric Wire Explosion." In Lecture Notes in Electrical Engineering, 1061–68. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-1532-1_112.

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Тези доповідей конференцій з теми "Electric discharge wire cutting"

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Patil, N. G., P. K. Brahmankar, and L. G. Navale. "On the Optimisation Into Wire Electro-Discharge Machining of Al/Al2O3P Composites." In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-41775.

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Анотація:
Non-traditional process like wire electro-discharge machining (WEDM) is found to show a promise for machining metal matrix composites (MMCs). However, the machining information for the difficult-to-machine particle-reinforced material is inadequate. This paper is focused on experimental investigation to examine the effect of electrical as well as nonelectrical machining parameters on performance in wire electro-discharge machining of metal matrix composites (Al/Al2O3p). Taguchi orthogonal array was used to study the effect of combination of reinforcement, current, pulse on-time, off-time, servo reference voltage, maximum feed speed, wire speed, flushing pressure and wire tension on kerf width and cutting speed. Reinforcement percentage, current, on-time was found to have significant effect on cutting rate and kerf width. The optimum machining parameter combinations were obtained for cutting speed and kerf width separately.
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Patil, N. G., P. K. Brahmankar, and L. G. Navale. "Some Investigations Into Multi-Objective Optimization of Wire Electro-Discharge Machining of Al/SiCp Composites." In ASME 2007 International Manufacturing Science and Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/msec2007-31060.

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Анотація:
Non-traditional process like wire electro-discharge machining (WEDM) is found to show a promise for machining metal matrix composites (MMCs). However, the machining information for the difficult-to-machine particle-reinforced material is inadequate. This paper is focused on experimental investigation to examine the effect of electrical as well as non-electrical machining parameters on performance in wire electro-discharge machining of metal matrix composites (Al/SiCp). Taguchi orthogonal arrays were employed to study the effects of combinations of voltage, current, pulse on-time, off-time, and wire speed and wire tension on kerf width and cutting speed. Voltage, current, and on-time were found to have significant effect on cutting speed and kerf width. The optimum machining parameter combinations were obtained for cutting speed and kerf width separately. Further, multi-objective optimization was done using Taguchi-Grey relational analysis. The process has been improved with the aid of Grey relational analysis and Taguchi orthogonal array. The results have been verified with confirmation experiments.
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Miller, Scott F., Enhui Shi, Chen-C. Kao, Albert J. Shih, and Jun Qu. "Investigation of Wire Electrical Discharge Machining of Thin Cross-Sections and Compliant Mechanisms." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-60894.

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Анотація:
The wire electrical discharge machining (EDM) of cross-section with minimum thickness and compliant mechanisms are studied. Effects of EDM process parameters, particularly the spark cycle time and spark on-time on thin cross-section cutting of Nd-Fe-B magnetic material, carbon bipolar plate, and titanium are investigated. An envelope of feasible wire EDM process parameters is generated for Ti. The application of such envelope to select suitable EDM process parameters for micro feature generation is demonstrated. Scanning Electron Microscopy (SEM) analysis of EDM surface, subsurface, and debris are presented. SEM observations lead to a hypothesis based on the thermal and electrostatic stress induced fracture to explain the limiting factor for wire EDM cutting of thin-sections. Applications of the thin cross-section cutting for EDM compliant mechanisms are discussed.
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Xu, Li, Chao Liang, and Ke Wu. "Technological parameters simulation of cutting red copper by wire cut electrical discharge machining." In Mechanical Engineering and Information Technology (EMEIT). IEEE, 2011. http://dx.doi.org/10.1109/emeit.2011.6023266.

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Huang, Jung-Tang, Yi-Sheng Cheng, and Sheng-Hsiung Shih. "Design of a Multi-Axis Diamond Wire Cutting Machine." In ASME 2000 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/detc2000/dac-14237.

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Анотація:
Abstract This study attempts to develop a machine tool to let its cutting function and precision be able to compare with the counterpart of the wire-cut electrical discharge machine, and also can cut non-conducting materials. This machine tool is numerically controlled by a PC-based controller to cut some projected shapes defined on a single axis, dual axes or multiple axes. This machine is to use one diamond wire loop with motion in direction of Z-axis or a certain direction, to attain the function of cutting. The wire could be kept as straight as possible at the cutting zone and not to shift laterally from the feeding direction. Besides, a tension sensor based on CCD cameras is also installed to know the cutting force and reactions of the workpiece against the diamond wire so as to adjust the wire travelling speed and feedrate of the workpiece to cut the corner precisely.
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Sasaki, Wataru, Wataru Natsu, and Huachen Xing. "Study on Wire Electrochemical Machining of Nickel Base Alloy Using Fine Wire Electrode." In JSME 2020 Conference on Leading Edge Manufacturing/Materials and Processing. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/lemp2020-8557.

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Анотація:
Abstract Nickel-based alloys represented by Inconel are materials with excellent high-temperature characteristics, and are widely used in the aerospace industry, such as aircraft and rocket engine parts. On the other hand, it is known as a typical difficult-to-cut material. Furthermore, in machining and electric discharge machining (EDM), the machining speed is slow and tool or electrode wear is a big problem. Meanwhile, electrochemical machining (ECM) using electrochemical reaction is not affected by the hardness of the material, does not generate a heat-affected layer on the workpiece surface, and has no tool wear. So, it is considered that ECM is suitable for machining difficult-to-cut materials. Therefore, in this study, focusing on the nickel-based alloy Inconel718 (Alloy718), we conducted a machining experiment using NaNO3 aqueous solution by wire ECM using a thin wire (mainly tungsten) as a tool electrode, and investigated the ECM characteristics. Wire ECM can be machined like wire EDM, and high-efficiency machining is possible by using a pulse power supply. As a result, it was found that increasing the voltage, electrolyte concentration, electrolyte supply pressure, and diameter of wire increases the current flowing between the electrodes and has the effect of promoting machining. In addition to simple cutting, the possibility of being effective not only for grooving but also for cutting complex shapes was shown.
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Brahmankar, P. K., N. G. Patil, and L. G. Navale. "Response Surface Modeling and Optimization of Electro-Discharge Machining of Al/Al2O3p." In ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-10996.

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Анотація:
In this study, wire electrical discharge machining of aluminium matrix composites has been experimentally investigated. A metal matrix composite Al/Al2O3p/10% has been machined at various combinations of machining parameters such as pulse on-time, off-time, wire speed and wire tension. Empirical models have been developed to predict the cutting rate, surface roughness and kerf width of the machined composite material. The models were developed by using the technique of response surface methodology. The experiments were conducted by using carefully planned response surface design matrix (central composite design). The model predictions are in good agreement with the experimental results. The R2 values of the proposed cutting rate, and kerf width models are above 0.99 and 0.98 respectively, where as it is 0.95 for the surface roughness model. The pulse on-time was found to influence cutting rate and surface finish significantly. Kerf width was significantly affected by pulse on-time, off-time, wire speed, and wire tension. In addition, a model was developed to correlate the multiple performance characteristic called as grey relational grade and the process parameters. Thus, a new combination of response surface method and grey relational analysis is proposed. The grey relational grade was significantly affected by pulse on-time and off-time time. The R2 value for the grey relational grade model was 0.94. Optimal parameter setting was determined for the multiple performance characteristic. The improvement in cutting rate was more than 100% compared to the ‘0’ level experiments, with reasonably smooth surfaces and narrow kerf width.
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Ramu, Gurupavan Hurugalavadi, Holalu Venkatadas Ravindra, and Devegowda Tadagavadi Muddegowda. "Effect of Wire Electrode Materials on Performance Characteristics for Wire Electrical Discharge Machining of Metal Matrix Composite Material." In ASME 2020 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/imece2020-23511.

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Анотація:
Abstract Composite materials are the advanced materials which are widely used in manufacturing industries. The most commonly used composite materials are metal matrix composites. Due to the presence of abrasive reinforcing particles, traditional machining of these causes severe tool wear and hence reduces the life of cutting tool. Wire electrical discharge machining (WEDM) is quite successful for machining of metal matrix composites. Wire Electrical Discharge machining is a specialized thermal machining process capable of accurately machining parts of hard materials with complex shapes. One of the main research fields in WEDM is related to the improvement of the process productivity by avoiding wire breakage. Wire electrodes used in WEDM are the core of the system. In this study the effect of different wire electrode materials on electrode wear and surface finish for wire electrical discharge machining of metal matrix composite material were investigated. The experiments were conducted under the following process parameters viz., pulse-on time, pulse-off time, wire feed speed and current. For the experiment the aluminium 6061 alloy with 0%, 5%, and 10% of silicon carbide (SiC) reinforcement material was used. To conduct the experiment CNC wire EDM machine with two different wires viz., molybdenum and brass wire was used. Experimental results indicate that for better surface finish of Al6061 alloy, the brass wire is more suitable. The use of brass wire as electrode material leads to significant reduction in electrode wear in machining of Al-5%SiC and Al-10%SiC composite materials compare to molybdenum wire. Increasing percentage of silicon carbide in aluminium 6061 alloy increases the variation in surface finish and electrode wear. Wire wear rate of both brass and molybdenum wire is increased with increase in percentage of silicon carbide.
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Bicknell, Gregory, and Guha Manogharan. "A Comparison of the Effects of Wire Electrical Discharge Machining Parameters on the Processing of Traditionally Manufactured and Additively Manufactured 316L Stainless Steel Specimens." In ASME 2018 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/imece2018-88014.

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Анотація:
Wire electric discharge machining (EDM) is a non-traditional machining method that has the ability to machine hard, conductive materials, with no force and high precision. This technology is used in industries, like the aerospace industry, to create precision parts used in high stress applications. Wire EDM is also commonly used in additive manufacturing (AM) applications to remove printed parts from the base-plates onto which they are printed. Numerous studies show the effects of EDM parameters, like pulse-on time, pulse-off time, and cutting voltage, on the processing of traditionally fabricated metal parts. However, very few studies identify how the parameters of wire EDM affect the processing of AM parts. This paper studies the effect of wire EDM pulse-on time, pulse-off time, and cutting voltage on the machining time, surface roughness, and hardness of additively manufactured 316L stainless steel cylinders. The effects of these wire EDM parameters are then tested on the machining time, surface roughness, and hardness of wrought 316L stainless steel cylinders. It was found that machining time of AM samples was statistically significantly lower than wrought samples and also had better surface finish and lower surface hardness.
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Billatos, Samir B., and Gregory M. Ricci. "Design of Experiments Procedure to Optimize Feedrate in Wire Electrical Discharge Machining." In ASME 1998 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/imece1998-0914.

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Анотація:
Abstract Wire Electro-Discharge Machining (WEDM) is a material removal process that incorporates heat generation through electrical energy and mechanical movement to produce finished designs in electrically conductive workpieces. The WEDM workcenter used in this research is a JAPAX 4G. The unit uses nozzles to guide the wire and apply the dielectric fluid to the workpiece. The wire is the conductive electrode and the dielectric fluid produces a localized ionized field between the workpiece and the wire. The dielectric fluid also, clears the debris and cools the wire. The most common problem in WEDM is the optimization of cycle times. The amount of time needed to produce a finished part determines the profitability of the workcenter. Industry is continually searching for procedures to decrease cycle times and increase profit. This research uses a design of experiments (DOE) method to optimize the WEDM process. The key parameters of the WEDM process are modified during the DOE trials. The results are applied to produce an optimal machining condition. The three conditions: Manufacturers Settings, E-Chip Settings, and Optimized Settings are used to produce the rough-cut of three identical designs. The rough-cut is the first pass to produce a finished workpiece. It is during this pass that material removal rate and the risk of wire rupture are the greatest. The overall cycle time is mainly impacted by the time required to perform the rough-cut. The three designs produced are examined for surface finish. The key parameter settings that are used during the rough-cut must not produce a surface finish that requires the addition of cutting passes to produce the final design. Also, the risk of wire rupture during the rough-cut must be acceptable. If wire rupture were to occur during the rough-cut then all benefits of increased speed are lost.
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