Research on Micro-Size Electrical Discharge Machining Polycrystalline Diamond

Yun Hai Jia; Jian Mei Guo; Yan Guo; Fan Yu

doi:10.4028/www.scientific.net/MSF.943.14

Paper Titles

Preface

A Modified Vacuum Packaging Technology for the Conductive Slip-Ring Encapsulating with Epoxy Molding Compounds
p.3

Experimental Study on Repairing Large Modulus Rack Cracks by Argon Arc Welding
p.8

Research on Micro-Size Electrical Discharge Machining Polycrystalline Diamond
p.14

Effect of Laser Shock Peening on Surface Residual Stress and Plastically Affected Depth of TC11 Titanium Alloy
p.20

Improved Workability of Diameter-Enlarged Process for S35C through Quenching and Tempering Heat Treatment
p.26

Influence of Fillet Radius of Die End on Workability of Diameter-Enlarged Process
p.34

Study on Wrinkles during Rotary-Draw Bending Forming
p.43

The Pouring Process Optimization for the Conductive Slip-Rin
p.48

HomeMaterials Science ForumMaterials Science Forum Vol. 943Research on Micro-Size Electrical Discharge...

Research on Micro-Size Electrical Discharge Machining Polycrystalline Diamond

Abstract:

With the demand of modern cutting technology for ‘high efficiency, precise, flexibility and green manufacturing’, polycrystalline diamond materials as cutting tools have been widely used in automobile, aerospace and non-metal processing. Electro-spark erosion is one of the most effective ways to machine polycrystalline diamond materials. Single pulse discharge is one of the research foundations of micro-EDM. Using 2 micron granularity polycrystalline diamond as experiment material, the influence of single pulse discharge technology on the removal efficiency of materials was studied, such as pit radius, pit depth and radius-depth ratio, etc. The experimental results show that, with the extension of the pulse duration, the radius of the discharge pit begins to increase rapidly, then slowly increases, and finally to slow down; while the radius of thermal influence zone increases rapidly and then continues to increase slowly. With the extension of pulse duration, the ratio of pit depth to radius changes within the range of 0.05 ~ 0.25, which shows a downward trend basically.

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Periodical:

Materials Science Forum (Volume 943)

Pages:

14-19

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.943.14

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Online since:

January 2019

Authors:

Yun Hai Jia*, Jian Mei Guo, Yan Guo, Fan Yu

Keywords:

Corrosion Pit Size, Electrical Discharge Machining (EDM), Micro-Size, Polycrystalline Diamond (PCD), Single Pulse

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* - Corresponding Author

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