文档介绍：ELSEVIER Journal of Materials Processq 9 Technology 71 ( 1997) 4% 465
Prediction of tool life in end milling y response
surface methodology
M. Alauddin a, . El Baradie b-*, . Hashmi b
Received 15 April 1996
Abstract
This paper presents a study of the development of mathematical models for tool life in end milling steel (190 BHN) using
high-speed steel slot drills under dry conditions. The predictive models for tool life have been developed in terms of primary
machining variables such as cutting speed, feed and axial depth of cut by response surface methodology. A first-order equation
covering a narrow range of the variables and a second-order equation covering a wide range of the variables are presented.
Response surfa! contours were constructed in speed-feed planes and used for determining the optimum cutting conditions for
a required tc ~’ ilfe. The adequacy of the predictive models was tested by analysis of variance and found to be adequate. 0 1997
Published by Elsevier Science .
Keywords: Tool life; End milling; Response surface methodology
1. Introduction tool life as :t!: empirical function of these conditions.
The evaluation of constants in this empirical, equation
It is very difficult to predict tool life in end milling is usually done in the conventional way (one variable at
with sufficient accuracy on the basis of co