Recent Patents about Pulse Power Supply of EDM

Author(s): En Li, Baocheng Xie*, Yongqiu Chen.

Journal Name: Recent Patents on Mechanical Engineering

Volume 13 , Issue 1 , 2020

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Background: Electrical Discharge Machining (EDM) technique is an effective and reliable method for machining difficult-to-cut materials with complex shapes. Pulse power supply, a core component of the EDM machine tool, plays a major role in the processing efficiency and processing quality. Thus, more and more attention has been paid to the power types and control methods of pulse power supplies of EDM at present.

Objective: To meet the increasing requirement of processing efficiency and processing quality of EDM, the power types and control methods of pulse power supplies are enhanced constantly.

Methods: This paper sketches out various current representative patents relevant to the power types and control methods of pulse power supplies of EDM.

Results: Through comparing the characteristics of the power types and control methods of pulse power supplies of EDM, the main problems in the present development such as low processing efficiency and poor processing quality are summarized and analyzed. Utilization and conservation of electric energy is also a concern. In addition, the further development tendency towards the power types and control methods of pulse power supplies of EDM is discussed.

Conclusion: The optimization and development of the power types and control methods of pulse power supplies of EDM are beneficial to solve the problems of processing efficiency, processing quality and energy utilization in EDM. More interrelated patents on the pulse power supply of EDM will be invented later.

Keywords: Control methods, Electrical Discharge Machining (EDM), power types, processing efficiency, processing quality, pulse power supply.

Wang KX. EDM difficult cutting materials and functional materials. Metals Process (Cold Proces) 2016; 18: 1-3.
Xiao JL. Research status and development trend of electric spark pulse power supply. Technol Innovation Appl 2016; p. 142.
Zhang ZJ, Sun Ch, Zhang MQ, Cui HJ, Zhang HL, Precision EDM. Technology in aviation manufacturing. Aviat Manuf Technol 2015; (23-24): 61-3.
Xu MG, Zhao JM. Research on new driving circuit of EDM pulse power supply. Technol Innovation Appl 2018; 4: 161-2.
Sun SF, Liu MS, Di SC, Shen W, An LH, Ge AH. Design and experiment of active matching micro-EDM pulse power supply. Harbin Eng Univ 2015; 36: 1080-5.
Zhang Y, Tang T, Fan J. Analysis of research on pulse generator for micro electro discharge machining. Chengdu Inst Technol 2014; 17(2): 49-50.
Hu QCh, Xiao JL, Guo LF, Shi TCh, Liao S. Design of EDM pulse power supply based on FPGA. Mach Tool Hydraul 2018; 14: 28-30.
Zhao YQ. Application of CPLD device in EDM pulse power supply. Electromach Mould 2014; 36: 52-3.
Li ZG. Process discussion on improving EDM efficiency. Technol Innovation Appl 2015; 17: 125-19.
Yang F, Yang J, Hua H, Fang B. Bipolar EDM pulse power supply with real-time control of discharge energy. Electromach Mould 2017; 19(6): 1-5.
Bai JJ, Li LQ. Development of a single pulse power supply for EDM. Modern Manuf Eng 2018; 19: 96-100.
Fan YS, Bai JC, Li Q, Li CJ. Key technologies to be solved for adaptive energy-saving pulse power of WEDM. Electromach Mould 2015; 17(1): 1-6.
Liu XF, Guo ZN, Peng SK, Du XY, Zhang H. Study on micro EDM power supply based on SOPC technology. Electromach Mould 2016; 18(6): 15-8.
Peng X, Ye B, Zhu Q, Wei JB. Design of a high voltage pulse power supply. In: Hefei Univ Technol (Nat Sci Ed). 2017; 40: pp. (11)1511-4.
Yang J, Yang F, Hua H, Fang B. Bipolar universal pulse power supply for EDM. Proceedings of the 17th National Special Machining Academic Conference. (Volume I)Beijing, China 11. 2017.
Wang F, Zhang YB, Liu GM, Wang Q, Yuan WR, Hu B. Very high frequency resonant pulse source discharge erosion. China Mech Eng 2019; 30(20): 2439-46.
Bai JJ, Li LQ. A single pulse power supply. CN104702142 (2015)
Bai JJ, Li LQ. A single pulse power supply and its control method. CN104702142 (2018)
Zhou CY. High-frequency pulse power supply and its application in EDM. CN206732300 (2017)
Yu HX. A compound pulse power supply for EDM. CN106964853 (2017)
Guo YF, Zhang GW, Du YL, Wang L, Feng YR. Parameter self-adjusting pulse power supply for dielectric ceramic coating metal EDM. CN110142470 (2019)
Zhang BH, Liang CY. Alternating polarity pulsed power supply. CN102114559 (2012)
Zhou JP, Liang CH, Zhang XF. Multifunctional numericalcontrol pulse power supply. CN203151396 (2013)
Ma YQ, Xu XY, Zhou YW, Wang Y. Nanosecond pulse power. CN204928617 (2015)
Niu XZ, Wang HZ, Yang Z, Chen Q, Deng X. Take highvoltage pulse power supply circuit of magnetic energy optimization. CN205901624 (2017)
Shi XD, Zhu JJ, Yuan XG, Shu BL. An electric dust with a high-voltage pulse power source. CN208146221 (2018)
Mai RF. A spark-erosion wire cutting machine pulse generator for processing of accurate mould. CN206105082 (2017)
Lu T, Zhu YY. Special power supply for high-power millimeterwave solid-state power amplifier. CN201947187 (2011)
Zhu YY, Wu L, Wang J, Chen Y. A kind of millimeter wave solid state power amplifier lock-out pulse power supply. CN106533244 (2018)
Wu Q, Wan FR, Lu ZL, et al. Micro control method of machining pulses of electric spark digital pulse power supply. CN106238836 (2016)
Wu Q, Gu YL, Wan FR, Ni MM, Zhuang CH, Wang XZ. Macro control method for machining pulse of electric spark digital pulsed power supply. CN107340753 (2017)
Luo YF, Adrian RL, Bridges AR, Usmani N. System and methods of multiple electrode electric discharge machining. US20180229319 (2018)
Luo YF, Lombardo DR, Hayashi SR. System and methods for electric discharge machining. US20180236579 (2018)
Mai RF. Pulse power supply of WEDM for precision die machining. CN206105082 (2017)
Liao HY. High voltage plate for electric spark machine tool and electric spark machine tool control system. CN107052482 (2017)
Hasegawa L. Wire electric discharge machine capable of starting machining from short-circuit state. EP2985104 (2016)
Yanagisawa T, Toyonaga T. Electric discharge machining device. EP2883641 (2017)
Hasegawa Y. Wire electric discharge machine and wire electric discharge machining method. EP2719492 (2017)
Ruef R. Energy-saving circuit for a network-powered device, network arrangement and energy-saving method. US09515507 (2016)
Cho M, Aokitoru M, Kasamatsu T. Switching power supply device for reducing energy loss. US10069425 (2018)
Li WZ, Yan GZ, Cai B, Zhao WS. Research on maintenance voltage of RC pulse power supply. Electromach Mould 2005; 7(4): 10-3.
Huang HQ, Liu W, Zeng LL, Zhang HP. Research on controllable RC pulse power supply of micro-EDM. Electromach Mould 2013; 15(2): 12-5.
Qian ZZ. Research on pulse power supply for WEDM. Technol Econ Guide 2018; 26(26): 80-6.
Chu XY, Hu ZP, Xu SM. Design of pulse power supply based on RC delay chopping principle. Electron Des Eng 2015; 23(23): 82-4.
Chen F, Wang BR, Shi W, Zhang YB. Review of micro electrical discharge machining technology. Electromach Mould 2015; 17(S1): 6-10.
Wan FR, Xu LJ, Wang XC, Wu Q. Energy saving effect analysis on no resistance digital pulse power supply of high efficiency and energy saving. Electromach Mould 2017; 19(5): 18-21.
Zhu XY, Hu ZP, Xu SM. Design of pulse power supply based on RC delay chopper principle. Fujian. Xiamen Univ 2015; 23: 82-5.
Rao JF, Ding JL, Li Z, Jiang S. Design of Marx square wave pulse power supply for semi floating gate transistors. High Power Laser Part Beam 2017; 29(10): 1-8.
Yin HM, Wu XY, Cao YX, Jiang K, Xu B, Lei JG. Research on a transistor pulse power supply for micro EDM based on MOSFET. Mech Electr Eng Technol 2019; 48(9): 1-3.
Ding Y. One kind of pulse power NC. CN106624218 (2018)
Ding Y. A wire electric discharge pulse power working machine. CN106563857 (2018)
Ding Y. The method of controlling spark species pulsed power supply unit. CN106624217 (2018)
Ding Y. An electric pulse method of controlling spark discharge gap. CN106513877 (2018)
Zhang YJ, Ji CY, Zhang JS, Zhang YZ. Electric spark power. CN204633635 (2015)
Zhang YJ, Ji CY, Zhang JS, Zhang YZ. Electric spark power source and working method thereof. CN104506073 (2015)
Wang QF, Wei X, Jin B. Spark-erosion machining power and processing equipment. CN207026652 (2018)
Wang QF, Wei X, Jin B. EDM power supply and control method. CN107775128 (2018)
Takada T, Hashimoto T, Kim I, et al. Electric discharge machining apparatus. JP5323283 (2016)
Takada T, Morita M, Ebashi K, Kiyohara K, Oda K. Discharge machining power supply. JP5940229 (2018)
Guo SF. Electric spark pulse generator return circuit. CN207806817 (2018)
Zhou HX, Li HS. Pulse power supply and pulse machining equipment with the same. CN104907647 (2015)
Yang F, Hua H, Yang J, Li CH, Cao Y, Peng FM. Micro electrical discharge pulse power source and segmental control method based on micro electrical discharge pulse power source. CN107276405 (2017)
Yang F, Yang J, Hua H, Cao Y, Li CH, Fang B. Constantfrequency equal-energy control method of micro electric spark pulse power supply. CN107186295 (2017)
Yang F, Cao Y, Yang J, Hua H, Li CH, Peng FM. Electrospark wire-electrode cutting pulsed power supply and control method thereof. CN108380988 (2018)
Yang F, Tan DF, Yang J, et al. Full-bridge interleaved parallel bipolar wire cut electrical discharge machining pulse power supply and machining method. CN108672858 (2018)
Yang F, Li HL, Tan DF, Yang J, Hua H, Li L. A wire electric discharge wire cutting and working process of an electronic load pulse power abstract. CN108907381 (2018)
Liu YH, Zhang YC, Wang F, et al. High energy density in high-speed milling EDM power supply device. CN103008803 (2016)
Ji RJ, Liu YH, Zheng C, et al. Pulsed power supply with parallel high-energy capacitors for electrosparking. CN102909444 (2013)
Murai M, Arakawa Y, Furuta T. Electric discharge machining apparatus. JP5155418 (2012)
Murai M, Furuta T. Discharge machining power supply. JP5642810 (2016)
Kim I, Hashimoto T, Takada T, Nakagawa T, Sasaki Y. Electric discharge machining apparat. US9533365 (2017)
Dai MS, Yang ZY, Li J, Wang CL. High-frequency impulse power supply of electric spark texturing system. CN103056461 (2015)
Hu QC, Chen YB, Guo LF, et al. Electric spark pulsed power supply and machine tool control system. CN107627000 (2018)
Qiu MB, Zou Y, Liu LC, Liu ZD, Shen LD. Wire electrical discharge interpulse or pulse-width PID control constant current probability pulse power supply. CN108723531 (2018)
Liu XC. Current type energy saving electrical spark processing pulse power supply with adjustable no-load voltage. CN201572979 (2010)
Qin DF, Wang YP. No resistive spark pulse power and its processing and clearance discharge condition recognition methods. CN110328419 (2019)
Xu MG, Ge X, Liu Y. Multifunctional combined machining pulse power supply. CN105618877 (2018)
Yu SP, Fang HY, Liu YQ, Qan JH. Wire-cut electrical discharge machining (WEDM) nanosecond pulse power supply system and control method. CN107332459 (2017)
Shao JJ. Overcurrent protective device for wire cut electrical discharge machining (WEDM) machine tool pulse power supply. CN104959689 (2015)
Nakamura K, Oda K, Goto K, Suzuki S. Electric discharge machining power supply apparatus, and electric discharge machining method. EP1806196 (2010)
Okane M, Suzuki S, Oda K. Power supply device for an electrical discharge machine and a discharge machining method. JP4850317 (2016)
Okane M, Suzuki S, Oda K. Power supply device for electric discharge machining apparatus and electric discharge machining method. US9278399 (2016)
Nakashima Y, Kawahara A. EDM machining power supply. JP5887378 ( (2018)
Nakashima Y, Kawahara A. Machining power supply device for electric discharge machining. US20150314383 (2015)
Zhu XY, Hu ZP, Shi JL, Hong YQ, Li P, Xue WD. Nanosecond-pulse-width pulsed power supply used for electrosparking. CN103990871 (2016)
Zhu XY, Chen XS, Hu ZP, Li JK. A nanosecond level pulse width pulse generator for electrochemical machining. CN205496719 (2016)
Huang RN, Li Y, Lou YJ. An energy-saving EDM Pulse. CN104646775 (2017)
Hu SN, Zhao B, Zhu XD, Li JH, Zhou T. Numerical control electric spark pulse generator. CN207952846 (2018)
Sun QC, Tian YB, Luo RK. Energy-saving electrosparking pulsed power supply capable of reutilizing electric energy. CN108340032 (2018)
Wang PD, Sun SW, Hu S, Hu Q. Electric spark pulse power supply. CN206614115 (2017)
Wang PD, Sun SW, Hu S, Hu Q. Electric spark pulse power supply and waveform control method for current output by power supply. CN108422055 (2018)
Xia XM, Xia YN, Huang WL, Lin CJ. High-speed energy- conserving wire-electrode cutting high frequency pulse power of intelligence. CN207521832 (2018)
Zhao JS. Dual-frequency output pulse power and spark-erosion wire cutting equipment. CN206464656 (2017)
Wang ZL, Liu HZ, Wang YK, Chi GX, He XL, Zeng PQ. Self-induced electric discharge machining method of metalceramic functionally graded material. CN102528182 (2013)
Wang ZL, Di XS, Wang YK, Wang HR. A method for metal-ceramic functionally gradient material EDM machining method and machining power supply. CN10755290 (2018)
Zhang JR, Yang CX, Jiang GM. An intelligent control frequency pulse power supply. CN104107967 (2017)
Zhou CY. High frequency pulse power and use its electric spark micro-hole processing equipment. CN206732300 (2017)
Stewart NG. Energy saving high frequency series buck AC voltage regulator system. US15316162 (2018)
Cheng WL, Stewart NG. High frequency series AC voltage regulator. EP3063865 (2017)
Cheng WL, Stewart NG. Improved high frequency series AC voltage regulator. AU2014361382 (2017)
Masao M, Tomoyuki F. Power supply device for electric discharge machining. US9486869 (2016)
Yasuo H. Wire electric discharge machine capable of starting machining from short-circuit state. US10144076 (2018)

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Year: 2020
Page: [24 - 34]
Pages: 11
DOI: 10.2174/2212797612666191127100146
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