Title: A new way of erosion-abrasion hybrid machining using slotted-diamond grinding wheel

Authors: Ravindra Nath Yadav; Vinod Yadava

Addresses: Department of Mechanical Engineering, Motilal Nehru National Institute of Technology, Allahabad-211004, India ' Department of Mechanical Engineering, Motilal Nehru National Institute of Technology, Allahabad-211004, India

Abstract: Machining of advanced engineering materials like super alloys, heat treated alloys, titanium and carbide alloys, metal matrix composites and ceramics are become challenge for manufacturing industries, while these materials are highly required in field of modern manufacturing. In this paper, a new way of erosion-abrasion hybrid machining (EAHM) process using slotted wheel has been presented for machining of the hard and brittle electrically conductive materials, which is developed by comprising the mechanical grinding with electrical discharge grinding (EDG) in such a way that both the processes happen alternately. The performance of proposed EAHM process has been tested on aluminium silicon carbide (Al/SiCp) composite and also compared with electrical discharge machining (EDM) and EDG in term of material removal rate (MRR) and average surface roughness (Ra). It has been found that EAHM gives higher MRR than EDM and EDG processes with better surface finish, when these processes are individually tested on the same material.

Keywords: erosion-abrasion hybrid machining; EAHM; electrical discharge machining; EDM; electrical discharge grinding; EDG; mechanical grinding; aluminium; silicon carbide; Al/SiCp composites; metal matrix composites; MMCs; slotted-diamond grinding wheel; electro-discharge machining; material removal rate; MRR; surface roughness; surface quality; advanced engineering materials.

DOI: 10.1504/IJMTM.2014.064625

International Journal of Manufacturing Technology and Management, 2014 Vol.28 No.1/2/3, pp.132 - 145

Received: 15 May 2013
Accepted: 19 Dec 2013

Published online: 10 Sep 2014 *

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