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Experimental Evaluation Of Machining Surface & Tool Wear In Thermally Enhanced Machining Of En 31 Steel

Author(s):

ASHISHKUMAR S. SHAH , GOVERNMENT ENGINEERING COLLEGE, DAHOD; BHARAT N. GELOT, GOVERNMENT ENGINEERING COLLEGE, DAHOD

Keywords:

Surface roughness; Tool life; hot machining; Torch flame; work piece temp.

Abstract

Materials with resistance to wear are frequently utilized in industry and these materials are notoriously difficult to machine. One of the methods of softening the work piece is hot machining. The temperature rise at the shear zone reduces the yield strength and work hardening of the work piece, which make the plastic deformation of hard-to-machine materials easier during machining. Hot machining prevents cold working hardening by heating the piece above the recrystallization temperature and this reduces the resistance to cutting and consequently favours the machining. Hot Machining can be used to decrease tool wear, power consumed and increase surface finish. In this study, an experimental investigation had been carried out for hot-machining operation of EN 31steel using a carbide cutting tool. The heating of the work-piece was carried out by burning a mixture of liquid petroleum gas and oxygen. The surface finish is influenced by work-piece temperature, cutting speed, feed and depth of cut. The influence of surface temperature, cutting speed, feed rate, and depth of cut on the surface finish was investigated.

Other Details

Paper ID: IJSRDV2I3167
Published in: Volume : 2, Issue : 3
Publication Date: 01/06/2014
Page(s): 1845-1848

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