Tool-Life Testing by Response Surface Methodology—Part 2

[+] Author and Article Information
S. M. Wu

Department of Mechanical Engineering, University of Wisconsin, Madison, Wis.

J. Eng. Ind 86(2), 111-116 (May 01, 1964) (6 pages) doi:10.1115/1.3670465 History: Received January 21, 1963; Online December 08, 2011


This paper is a continuation of a previous paper in which the basic philosophy of response surface methodology has been explained and a first-order tool-life-predicting equation has been developed. This part of the paper illustrates the development of a second-order tool-life-predicting equation in 18 and 24 tests. It was found that the second-order effect did not show statistical significance within the cutting ranges of this project; however, the second-order effect of cutting speed has been found important by the study of residuals. If only one independent variable is investigated, a minimal number of tests can be used to find a second-order equation. Examples of designs in three, five, and six tests are illustrated.

Copyright © 1964 by ASME
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