MODELING OF CUTTING FORCES FOR FINISHING AND ROUGHING OPERATIONS IN OBLIQUE CUTTING

Authors

  • Rathod K B Mechanical Engineering Department, Sardar Vallabhbhai National Institute of Technology, Surat, India
  • Lalwani D I Mechanical Engineering Department, Sardar Vallabhbhai National Institute of Technology, Surat, India

Keywords:

chip flow angle, oblique tool geometries, Johnson and Cook material constants, cutting Forces

Abstract

This paper deals with the development of a predictive cutting  force model for oblique cutting (3D) through the extension of an orthogonal (2D) force model of Oxley’s predictive machining theory. The force model for oblique cutting is developed for finishing and roughing operations using a method described by Arsecularatne et al. (1995; 1998) that requires the orthogonal cutting forces, i.e., cutting force (FC) and thrust or feed force (FT) values, cutting edge geometry and cutting conditions (cutting speed, feed rate and depth of cut). The cutting forces are predicted from Oxley’s predictive machining theory for forces, stresses, and temperatures at shear and tool-chip interface zone using Johnson and Cook flow stress model. The developed force model for oblique cutting is verified by the available literature data for AISI 4142 steel and two hot work steels, namely, AISI H 13 and AISI H 11. The predicted cutting force model shows reasonably good agreement with experiment results for oblique cutting.

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Published

2016-09-01

How to Cite

[1]
Rathod K B and Lalwani D I, “MODELING OF CUTTING FORCES FOR FINISHING AND ROUGHING OPERATIONS IN OBLIQUE CUTTING ”, JME, vol. 11, no. 3, pp. 126–134, Sep. 2016.