Tool-Life Testing by Response Surface Methodology—Part 1

TLDR

The study applies response surface methodology to tool‑life testing, replacing the traditional one‑variable‑at‑a‑time approach. The authors examined speed, feed, and depth of cut, fitting a first‑order response surface model in Part 1, with a second‑order model to follow in Part 2. Using this method, the number of required tests is greatly reduced and the resulting tool‑life equation’s reliability can be quantified.

Abstract

This paper presents a study of tool-life testing by a statistical approach, referred to as response surface methodology, instead of the conventional one-variable-at-a-time method. With this new technique the number of tests required to develop a tool-life predicting equation can be substantially reduced. The reliability of such an equation can also be estimated. Three independent variables, speed, feed, and depth of cut, were investigated in this project. A simple first order equation is “graduated” in Part 1 and a more general second-order equation will be presented in Part 2 of this study.