Enhanced Surface Integrity and Dimensional Accuracy in Micro-EDM Drilling Using D-Shaped Electrode

2013 ◽  
Author(s):  
Afzaal Ahmed ◽  
Syafiq Abdul Rahman ◽  
Mustafizur Rahman ◽  
A. Senthil Kumar
Keyword(s):  
Surface Integrity ◽  
Dimensional Accuracy ◽  
Micro Edm ◽  
Enhanced Surface ◽  
Edm Drilling

Development of a Reverse Micro EDM-Drilling for Holing Diamond-Tool

2010 ◽  
Vol 126-128 ◽  
pp. 802-807
Author(s):  
Shun Tong Chen ◽  
Zong Han Jiang ◽  
Yi Ying Wu ◽  
Hong Ye Yang
Keyword(s):  
Diamond Tool ◽  
Dimensional Accuracy ◽  
Sintered Alloy ◽  
Micro Edm ◽  
Hollow Shaft ◽  
Discharge Capacitance ◽  
Micro Holes ◽  
Micro Hole ◽  
Micro Tool ◽  
Edm Drilling

This study presents the development of a drilling technique for an innovative tabletop drilling machine that combines micro-EDM with drilling to fabricate micro-holes in diamond-tool. The mechanisms designs of double V-shaped bearings and double spindles which provide a precision clamping and vertical alignment for diamond-tool and micro-tube are devised to enable to machine a co-centric micro-hole for micro-tool. A diamond-tool, made with copper-based sintered alloy, is drilled by using the developed technique of co-centric micro-hole EDM-drilling into a hollow shaft which can create equilibrium of drilling forces, prevent a drilling squeezing to be occurred and enable to offer a temporary storing space for drilling chips. Relative experiments including the determinations of drilling ratio and discharge capacitance are carried out via this established machine. Experimental results show that excellent geometric and dimensional accuracy of micro-holes on the diamond-tool can be achieved.

Enhanced surface integrity and dimensional accuracy by simultaneous micro-ED/EC milling

CIRP Annals ◽  
2012 ◽  
Vol 61 (1) ◽  
pp. 191-194 ◽  
Author(s):  
Minh Dang Nguyen ◽  
Mustafizur Rahman ◽  
Yoke San Wong
Keyword(s):  
Surface Integrity ◽  
Dimensional Accuracy ◽  
Enhanced Surface

Effects of dielectric fluids on surface integrity for the recast layer in high speed EDM drilling of nickel alloy

2019 ◽  
Vol 783 ◽  
pp. 95-102 ◽  
Author(s):  
Chaojiang Li ◽  
Xi Xu ◽  
Yong Li ◽  
Hao Tong ◽  
Songlin Ding ◽  
...  
Keyword(s):  
Nickel Alloy ◽  
Surface Integrity ◽  
High Speed ◽  
Recast Layer ◽  
Dielectric Fluids ◽  
Edm Drilling
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