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An Investigation into Electrode Wear in Layer-Cut EDM Process

Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 234)

Abstract

This chapter discusses the influence of the peak current, pulse duration, and machining depth of each path on the electrode wear and carbide accumulation in layer-cut electrical discharge machining (EDM) process. During the layer-cut EDM process, the simple electrode runs through the planned path from the top layer to lower layer gradually to obtain any expected cavity, which is similar to the end milling process. It has the merits of end milling such as high flexibility machining by using tool and path but also has the strength of EDM such as easy to machining high hardness material. However, the electrode wear is the key problem that influences the precision for the development of layer-cut EDM process. The result shows that the steady linear electrode wear could be obtained using the pulse duration of 150 μs. The suitable parameters would be the basis of electrode compensation in the layer-cut EDM process.

Keywords

Peak current Pulse duration Machining depth Carbide accumulation 

Notes

Acknowledgments

The authors thank the National Science Council of Taiwan, R.O.C., for financially supporting this research under contract o. NSC95-2221-E-002-047-MY2. This research was supplied with a machine of Creator Precision Co., Ltd. Taiwan.

References

  1. 1.
    Yu ZY, Masuzawa T, Fujino M (1998) Micro-EDM for three-dimensional cavities – development of uniform wear method. Ann CIRP 47(1):169–172CrossRefGoogle Scholar
  2. 2.
    Lo, C-Y (2007) A study on electrode wear sensing and compensation in micro-EDM. Master thesis of Department of Mechatronic Engineering, Huafan University, TaiwanGoogle Scholar
  3. 3.
    Chen M-C, Mei C-C (2006) The construction of the linear compensation and the machining on EDM Milling. In: 23th proceedings of the Chinese Society of Mechanical Engineers, D6-002, TainanGoogle Scholar
  4. 4.
    Son SM, Lim H, Kumar A, Rahman SM (2007) Influences of pulsed power condition on the machining properties in micro EDM. J Mater Process Technol 190:73–76CrossRefGoogle Scholar
  5. 5.
    Blatnik O, Valentincic J, Junkar M (2007) Percentage of harmful discharges for surface current density monitoring in electrical discharge machining process. Proc Inst Mech Eng Part B J Eng Manuf 221:1677–1684CrossRefGoogle Scholar
  6. 6.
    Yeo SH, Kurnia W, Tan PC (2007) Electro-thermal modeling of anode and cathode in micro-EDM. J Phys D Appl Phys 40:2513–2521CrossRefGoogle Scholar
  7. 7.
    Perez R, Rojas H, Walder G, Flükiger R (2004) Theoretical modeling of energy balance in electroerosion. J Mater Process Technol 149(198–203)Google Scholar

Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringNational Taiwan UniversityTaipeiTaiwan

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