Experimental Study and Theory Prediction on Adiabatic Shear Critical Conditions of Hardened AISI 1045 Steel

Author:

Li Guo He1,Qi Tie Li2,Cai Yu Jun1,Wang Hong Jun1

Affiliation:

1. Tianjin University of Technology and Education

2. Tangshan College

Abstract

Orthogonal cutting experiments of hardened AISI1045 steel(45HRC) are performed to investigate the influence of cutting conditions on adiabatic shear which occurs in the process of chip formation of many materials. It is found that the cutting speed, cutting depth and rake angle all have influence on adiabatic shear and there is a critical cutting speed at which the adiabatic shear appears. By metallurgical observation, the critical cutting speed under different cutting depths and rake angles are given. A model based on linear pertubation analysis is used to predict the adiabatic shear critical cutting conditions of hardened AISI 1045 steel. The comparison of prediction results and that of expriments shows that this prediction model is valid.

Publisher

Trans Tech Publications, Ltd.

Subject

General Engineering

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