Effect of electrical discharge machining on surface characteristics and machining damage of AISI D2 tool steel

2003 ◽  
Vol 358 (1-2) ◽  
pp. 37-43 ◽  
Author(s):  
Y.H. Guu ◽  
H. Hocheng ◽  
C.Y. Chou ◽  
C.S. Deng
2021 ◽  
Author(s):  
Brahim Ben Fathallah ◽  
Mohamed Rawen

Abstract The Controlled grinding is governed by the maximum surface temperature in the wheel-workpiece interaction. In this study, we demonstrate that temperature is the significant controller on the surface characteristic grinding, the surface integrity, the productivity and the fatigue life. Moreover, high temperature generated in abrasive processes is the main factor responsible on ground surface damage and its impact on the induced consequences in grinding of AISI D2 tool steel. The combined effects of abrasive type, cooling mode according to the cutting depth, on the temperature and residual stress distribution were highlighted by exploiting FEM. Obtained numerical results were validated with the experimental ones.


2013 ◽  
Vol 315 ◽  
pp. 846-850
Author(s):  
Faizul Ezmat Abdul Hamid ◽  
Mohd Amri Lajis

In this paper an attempt has been made to investigate the performance of an electrode made through powder metallurgy (PM) of copper tungsten during electrical discharge machining (EDM). Experimental results are presented on electrical discharge machining of AISI D2 hardened steel in kerosene with a copper tungsten (Cu35% - W65%) tool electrode made through PM method with a constant duty factor of 80%. In terms of high performance EDM process, higher peak current (>20A) and pulse duration (>400µs) with a high machining efficiency were applied. Experimental results have shown that machining at a peak current of 40A and pulse duration of 400µs yields the highest material removal rate (MRR) whereas machining at a peak current of 20A and pulse duration of 400µs yields the lowest tool wear rate (TWR). The surface characteristics of workpiece machined surface become more severe when shorter pulse duration be used at the constant duty factor. The optimum machining performance can be performed by the combination of pulse duration and peak current at 400µs and 40A respectively since the effect of TWR is so small at the varied parameters even at the highest MRR.


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