Identification of eccentricity for disc milling cutter of indexable two sided inserts

Gensheng Li,Hongmin Xin,Chao Xian

doi:10.1177/16878140211041493

Abstract

Tool eccentricity has a significant impact on machining quality, accuracy, and operation status of machine tool. It is difficult to accurately identify tool eccentricity. In this paper, the mathematical models of instantaneous undeformed cutting thickness and cutting force considering tool eccentricity are determined by theoretical method. Based on the model, the identification method for eccentricity parameters is proposed, and the eccentricity parameters of disc milling cutter is identified. According to the identified parameters, the cutting force is verified. The results show that most of the values of measured cutting forces are greater than the predicted ones considering tool eccentricity. In the future, it is necessary to establish a new cutting force model considering both tool eccentricity and tool wear.

Highlights

Due to the manufacturing and installation errors of the tool-spindle clamping system, the geometric axis of the tool often does not coincide with the spindle rotation axis, which is called tool eccentricity or runout
The model of instantaneous undeformed cutting thickness and cutting force model for single tooth cutting considering cutter eccentricity are obtained through theoretical analysis
The cutting force is decomposed into nominal force without eccentricity and eccentric force caused by eccentricity in the model

Summary

Introduction

Due to the manufacturing and installation errors of the tool-spindle clamping system, the geometric axis of the tool often does not coincide with the spindle rotation axis, which is called tool eccentricity or runout. Keywords Tool eccentricity, cutting force, models, eccentricity parameters, identification method The geometric parameters of tool eccentricity are solved by numerical solution.[10] Zhang et al.[11] establish a method to solve the cutter radial runout parameters from the cutting force model which the cutting coefficients are constant.

Results

Conclusion