High efficiency fine boring of monocrystalline silicon ingot by electrical discharge machining

1999 ◽  
Vol 23 (2) ◽  
pp. 126-133 ◽  
Author(s):  
Yoshiyuki Unoa ◽  
Akira Okada ◽  
Yasuhiro Okamoto ◽  
Kazuo Yamazaki ◽  
Subhash H Risbud ◽  
...  
Keyword(s):  
Electrical Discharge ◽  
High Efficiency ◽  
Electrical Discharge Machining ◽  
Monocrystalline Silicon ◽  
Silicon Ingot ◽  
Fine Boring

Complex Grinding Assisted with Electrical Discharge Machining for Electrically Conductive PCD

2010 ◽  
Vol 126-128 ◽  
pp. 591-596 ◽  
Author(s):  
Manabu Iwai ◽  
Shinichi Ninomiya ◽  
Gaku Sugino ◽  
Kiyoshi Suzuki
Keyword(s):  
Surface Finish ◽  
Electrical Discharge ◽  
Material Removal ◽  
High Efficiency ◽  
Electrical Discharge Machining ◽  
Grinding Force ◽  
Wheel Wear ◽  
Electrically Conductive ◽  
Composite Diamond

A new PCD material named EC-PCD (Electrically conductive polycrystalline composite diamond), which consists of electrically conductive diamond grits, has recently been developed. This paper deals with an investigation of a complex grinding assisted with electrical discharge machining (EDM) to realize high efficiency, low and stable grinding force and low wheel wear for the new EC-PCD. The effect of complex grinding assisted with EDM is compared experimentally with the standard PCD (S-PCD). The result shows that, in the complex grinding, lower and more stable grinding force is realized thanks to the material removal action in EDM and that lower wheel wear and better surface finish are attained, just when the EC-PCD is selected as a workpiece.

scholarly journals High Efficiency Electrical Discharge Machining with Graphite Electrode

1999 ◽  
Vol 33 (72) ◽  
pp. 37-45
Author(s):  
Changning GUO ◽  
Yoshiyuki UNO ◽  
Akira OKADA ◽  
Tomonori KATSUTA ◽  
Eiji HASHIKAWA ◽  
...  
Keyword(s):  
Electrical Discharge ◽  
High Efficiency ◽  
Electrical Discharge Machining ◽  
Graphite Electrode

Sustainable and high-efficiency green electrical discharge machining milling method

2020 ◽  
Vol 274 ◽  
pp. 123040 ◽  
Author(s):  
Xinlei Wu ◽  
Yonghong Liu ◽  
Xuexin Zhang ◽  
Hang Dong ◽  
Chao Zheng ◽  
...  
Keyword(s):  
Electrical Discharge ◽  
High Efficiency ◽  
Electrical Discharge Machining ◽  
Milling Method

Design and Implementation of Flyback Converter for Electrical Discharge Machining Power Generator

2013 ◽  
Vol 67 (3) ◽  
Author(s):  
Nazriah Mahmud ◽  
Azli Yahya ◽  
Trias Andromeda ◽  
Nor Liyana Safura Hashim
Keyword(s):  
Electrical Discharge ◽  
High Efficiency ◽  
Electrical Discharge Machining ◽  
Machining Process ◽  
Switch Mode Power Supply ◽  
Power Generator ◽  
Dc Voltage ◽  
Flyback Converter ◽  
Design And Implementation ◽  
Switch Mode

Electrical Discharge Machining process has been widely used for manufacturing micro components due to its contactless process. Its application has also been introduced in machining micro pits on hip implant. In this paper, a new design of power generator is proposed in order to reduce micro crack while machining take place. Flyback Switch Mode Power Supply has been chosen because of its high efficiency. The simulation of Flyback converter using LT Spice is presented. The result shows that the system achieves 95.9% of efficiency. Experimental results show that flyback converter able to produce DC voltage up to 111.6 V.

Machining Characteristics of Magnetic Force-Assisted Electrolytic Machining for Polycrystalline Silicon

2011 ◽  
Vol 325 ◽  
pp. 523-529
Author(s):  
Po Huai Yu ◽  
Jung Chou Hung ◽  
Hsin Min Lee ◽  
Kun Ling Wu ◽  
Biing Hwa Yan
Keyword(s):  
Electrical Discharge ◽  
Polycrystalline Silicon ◽  
Material Removal ◽  
Magnetic Force ◽  
High Efficiency ◽  
Electrical Discharge Machining ◽  
Wire Electrical Discharge Machining ◽  
Electrolyte Circulation ◽  
Machining Characteristics ◽  
Temperature Melting

Wire electrical discharge machining (WEDM) of polycrystalline silicon (polysilicon) involves high-temperature melting that easily produces cracks on the silicon surface. This paper studies improvements of cracks and craters on surface of polysilicon after wire electrical discharge machining (WEDM) by magnetic force-assisted electrolytic machining (MFA-EM). The effects of different MFA-EM parameters on material removal and surface roughness are explored to understand the machining characteristics of MFA-EM and how magnetic field assistance contributes to high-efficiency and high-quality machining. Experimental results show that compared with standard EM, MFA-EM can achieve better machining efficiency and surface quality because MFA-EM can effectively enhance electrolyte circulation and replenishment, which contributes to better machining stability.

Sign in / Sign up

Export Citation Format

Share Document