21213 High-Speed Electric Discharge Machining by High Acceleration Gap Control

2013 ◽  
Vol 2013.19 (0) ◽  
pp. 559-560
Author(s):  
Keisuke ISHIDA ◽  
Hideki TAKEZAWA
Keyword(s):  
Electric Discharge ◽  
High Speed ◽  
Electric Discharge Machining ◽  
High Acceleration ◽  
Gap Control

Characterization of Electric Discharge Machining for Silicon Carbide Single Crystal

2008 ◽  
Vol 600-603 ◽  
pp. 855-858 ◽  
Author(s):  
Tomohisa Kato ◽  
Toshiya Noro ◽  
Hideaki Takahashi ◽  
Satarou Yamaguchi ◽  
Kazuo Arai
Keyword(s):  
Silicon Carbide ◽  
High Temperature ◽  
Electric Discharge ◽  
High Voltage ◽  
High Speed ◽  
Surface Damage ◽  
Lower Surface ◽  
Etch Pits ◽  
Electric Discharge Machining

In this study, we report electric discharge machining (EDM) as a new cutting method for silicon carbide (SiC) single crystals. Moreover, we discuss characteristics and usefulness of the EDM for the SiC. The EDM realized not only high speed and smooth cutting but also lower surface damage. Defect propagation in the EDM SiCs have been also estimated by etch pits observation using molten KOH, however, we confirmed the EDM has caused no damage inside the SiCs in spite of high voltage and high temperature during the machining.

Powder mixed electric discharge machining of high-speed steel T1 grade

2019 ◽  
Vol 15 (4) ◽  
pp. 699-713 ◽  
Author(s):  
Kanwal Jit Singh
Keyword(s):  
Electric Discharge ◽  
Grey Relational Analysis ◽  
High Speed ◽  
High Speed Steel ◽  
Machining Parameters ◽  
Electric Discharge Machining ◽  
Content Type ◽  
Relational Analysis ◽  
Input Parameters ◽  
Grey Relational

Purpose The purpose of this paper is to represent the innovative process of powder-mixed electrical discharge machining of high-speed steel T1 grade and to conduct experimental investigation to optimize the machining parameters associated with multiple performance characteristics using grey relational analysis. The machining of high-speed steel T1 grade via conventional machining is a difficult process. However, it can be easily machined by powder-mixed electric discharge machining. Design/methodology/approach Carefully selected machining parameters give the optimum output results. For experimentation, the following input parameters have been used: pulse on-time, discharge current, tool material and powder concentration. The effects of input parameters, namely, material removal rate (MRR), tool wear rate (TWR) and surface roughness (SR), have been investigated in this research. Findings Grey relational analysis and analysis of variance have been performed to optimize the input parameters for better output response. Optimized results show increment of TWR, MRR and SR, which is 63.24, 52.18 and 42.49 per cent, respectively. Originality/value This research paper will be beneficial for the industrial application. The GRA result gives the better output response.

Vibration assisted high-speed wire electric discharge machining for machining surface microgrooves

2019 ◽  
Vol 44 ◽  
pp. 418-426 ◽  
Author(s):  
Xuyang Chu ◽  
Xiangheng Zeng ◽  
Weihuang Zhuang ◽  
Wei Zhou ◽  
Xuejun Quan ◽  
...  
Keyword(s):  
Electric Discharge ◽  
High Speed ◽  
Electric Discharge Machining ◽  
Wire Electric Discharge Machining
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