Electrical Discharge Grinding (EDG) of Polycrystalline Diamond - Effect of Machining Polarity

Mohammad Zulafif Rahim; Song Lin Ding; John Mo

doi:10.4028/www.scientific.net/AMR.1025-1026.628

Paper Titles

Microstructural Behaviors of Boron Modified LCB Titanium Alloy
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Compatibilization of Thermoplastic Polyurethane and Polypropylene with a SEBS Compatibilizer
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Strength of Bonded Joints of Linear Low – Density Polyethylene after Radiation Cross – Linking
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Three-Dimensional Periodic Hematite Photocatalysts Fabricating by Direct Writing Method
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Electrical Discharge Grinding (EDG) of Polycrystalline Diamond - Effect of Machining Polarity
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Study of Degradation of Fiber - Cement Plates with Different Types of Non - Metalic Fibers
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Influence of Mould Release Agent on Surface Properties of Concrete with Special Matrix
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Analysis of Formation and Testing of Efflorescence on Concrete Elements
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Preparation of Iron Catalysts Generated from Fe-Coagulated Sludge Produced by Ferric Chloride Coagulation of Wastewater
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Electrical Discharge Grinding (EDG) of Polycrystalline Diamond - Effect of Machining Polarity

Abstract:

Electrical discharge grinding (EDG) is an advanced machining process and can be utilised to fabricate complex geometry of PCD tools. However, the PCD removal mechanism in this process is complicated. This study was carried out to understand the difference in PCD surface structure with difference EDG polarities. The study revealed that the finishing process with negative polarity is the reason for the porous structure on the surface. Further analysis on the chemical element and carbon structure were implemented as the morphological examination of the surface.