Machining of circular micro holes by electrochemical micro-machining process
Tóm tắt
Machining of micro holes with micro electrochemical machining (micro ECM) process has been carried out with an indigenously developed set up. This paper describes relevant problems and solutions for the circular micro holes machining process on 304 stainless steel sheets with 60 μm thickness using high speed steel cylindrical tool of diameter 500 μm and using dilute H2SO4 as electrolyte. The taper angle variation of the machined hole is analyzed and reported for different experimental setting parameters. The minimum value of the taper angle of machined holes is achieved at the parameter setting of 0.4 mol/L H2SO4, 700 kHz, 600 ns and 21 V, for stainless steel sheets and HSS tool.
Tài liệu tham khảo
Bhattacharyya B, Munda J, Malapati M (2004) Advancement in electrochemical micro-machining. Int J Mach Tools Manuf 44(15):1577–1589
Masuzawa T (2000) State of the art of micromachining. Ann CIRP 49(2):473–488
Bhattacharyya B, Munda J (2003) Experimental investigation into electrochemical micromachining (EMM) process. J Mater Process Technol 140:287–291
Bhattacharyya B, Malapati M, Munda J (2005) Experimental study on electrochemical micromachining. J Mater Process Technol 169(3):485–492
Bhattacharyya B, Malapati M, Munda J et al (2007) Influence of tool vibration on machining performance in electrochemical micro-machining of copper. Int J Mach Tools Manuf 47(2):335–342
Zhang Z, Zhu D, Qu N, Wang M (2007) Theoretical and experimental investigation on electrochemical micromachining. Microsyst Technol 13:607–612
Kim BH, Na CW, Lee YS et al (2005) Micro electrochemical machining of 3D micro structure using dilute sulpfuric acid. Ann CIRP 54(1):191–194
Kim BH, Park BJ, Chu CN (2006) Fabrication of multiple electrodes by reverse EDM and their application in micro ECM. J Micromech Microeng 16:843
Ahn SH, Ryu SH, Choi DK et al (2004) Electro-chemical micro drilling using ultra short pulses. Precis Eng 28:129–134
Cagnon L, Kirchner V, Kock M et al (2003) Electrochemical micromachining of stainless steel by ultra short voltage pulses. Z Phys Chem 217:299–313
Munda J, Malapati M, Bhattacharyya B (2007) Control of micro-spark and stray-current effect during EMM process. J Mater Process Technol 194(1–3):151–158
Sen M, Shan HS (2005) A review of electrochemical macro- to micro-hole drilling processes. Int J Mach Tools Manuf 45(2):137–152
Li Y, Zheng Y, Yang G, Peng L (2003) Localized electrochemical micromachining with gap control. Sens Actuators A 108(1–3):144–148
Jahan MP, Wong YS, Rahman M (2009) A study on the quality micro-hole machining of tungsten carbide by micro-EDM process using transistor and RC-type pulse generator. J Mater Process Technol 209(4):1706–1716
Lim HS, Wong YS, Rahman M et al (2003) A study on the machining of high-aspect ratio micro-structures using micro-EDM. J Mater Process Technol 140(1–3):318–325
Asad ABMA, Masaki T, Rahman M et al (2007) Tool-based micro-machining. J Mater Process Technol 192–193:204–211
Rahman AA, Mamat A, Wagiman A (2009) Effect of machining parameters on hole quality of micro drilling for brass. Mod Appl Sci 3(5):221–230
Schuster R, Kirchner V, Allongue P et al (2000) Electrochemical micromachining. Science 289(5476):98–101