Optimization of Process Parameters in Die Sinking EDM- A REVIEW

Author(s):

Narinder Singh, , Green Hills Engineering College,Solan.; Onkar Singh Bhatia, Department of Green Hills Engineering College,Solan.

Keywords:

Optimization, Process Parameters, EDM, MRR, TWR

Abstract:

Electrical discharge machining (EDM) is one of the earliest non-traditional machining processes. EDM is a thermal process in which rapid and continuous spark is discharged between electrically conductive work piece and electrode in dielectric medium. In the EDM process both the work piece material and the electrode material must be conductors of electricity. This process becomes cost-effective method of machining extremely tough and brittle materials. It is widely used for making moulds, dies and sections of complex geometry and forming deep complex shaped holes, by arc erosion in all kinds of electro-conductive materials. The input variable parameters are current, pulse on time and duty cycle. The effect of the variable parameters mentioned above upon machining characteristics such as Material Removal Rate (MRR), Tool Wear Rate. Die sinking electrical discharge machining (EDM) is one of the most widely used techniques for the fabrication of die and mold cavities which are finally used for mass production of metals and polymer products by replication such as die casting, injection molding, etc. In any replication process, it is expected that the quality mold will faithfully duplicate its shape and surface texture. Inaccurate duplications cause problems in assemblies, operations as well as lower the aesthetic view. In die sinking EDM the electrode produces exactly its opposite shape on the work material.

Other Details:

Manuscript Id	:	IJSTEV2I11321
Published in	:	Volume : 2, Issue : 11
Publication Date	:	01/06/2016
Page(s)	:	808-813

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