Surface Roughness Model for Worn Inserts of Face Milling: Part II — An Empirical Model

Abstract

In Part I of this research various factors that affect the work - piece surface roughness were studied. There was an obvious trend showing that the roughness of face-milled surfaces changes with tool service time. In this paper, Part II, a regression math model has been developed to describe the roughness change. Additional tests were conducted to confirm the model. It was found that roughness is a quadratic function of tool service time. Numerous factors affect surface roughness. These influences can be accounted for by the coefficients of the quadratic function. For a specific application, a regression can be determined from results of a simple test. Tool life can be predicted knowing the quadratic function and roughness specification.

Presented at the 54th Annual Meeting Las Vegas, Nevada May 23–27, 1999

KEY WORDS:

• Surface Finish Model
• Flank Wear

Notes

Presented at the 54th Annual Meeting Las Vegas, Nevada May 23–27, 1999