A Model for the Prediction of Bore Cylindricity During Machining

[+] Author and Article Information
G. Subramani

Cummins Engine Company, Columbus, IN 47202

S. G. Kapoor, R. E. DeVor

Department of Mechanical and Industrial Engineering, University of Illinois at Urbana-Champaign, 1206 W. Green Street, Urbana, IL 61801

J. Eng. Ind 115(1), 15-22 (Feb 01, 1993) (8 pages) doi:10.1115/1.2901630 History: Received March 01, 1991; Revised February 01, 1992; Online April 08, 2008


In this paper, a model is developed for computation of bore cylindricity of machined cylinder bores. The model takes into account the effect of cutting process variables and the bore design on bore cylindricity. Surface error, which is a measure of the lack of bore cylindricity, is caused by both the elastic deflection of the bore wall due to cutting forces and the thermal expansion of the bore during machining. The effect of both the cutting forces and the bore temperature is included in the model. Experiments have been conducted to measure the bore cylindricity using an Incometer device. Comparisons between the shape and magnitude of predicted and measured surface error show a good agreement.

Copyright © 1993 by The American Society of Mechanical Engineers
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