Faculty Advisor or Committee Member

Yiming Rong, Advisor

Faculty Advisor or Committee Member

Richard D. Sisson, Committee Member

Faculty Advisor or Committee Member

Mustapha S. Fofana, Committee Member

Faculty Advisor or Committee Member

Ning Fang, Committee Member

Identifier

etd-0109102-140803

Abstract

Prediction of chip-breaking in machining is an important task for automated manufacturing. There are chip-breaking limits in maching chip-breaking processes, which determine the chip-breaking range. This paper presents a study of chip-breaking limits with grooved cutting tools, and a web-based machining chip-breaking prediction system. Based on the chip-breaking curve, the critical feed rate is modeled through an analysis of up-curl chip formation, and the critical depth of cut is formulated through a discussion of side-curl dominant chip-formation processes. Factors affecting chip-breaking limits are also discussed. In order to predict chip-breaking limits, semi-empirical models are established. Although the coefficients that occur in the model are estimated through machining tests, the models are applicable to a broad range of machining conditions. The model parameters include machining conditions, tool geometry, and workpiece material properties. A new web-based machining chip-breaking prediction system is introduced with examples of industrial applications.

Publisher

Worcester Polytechnic Institute

Degree Name

PhD

Department

Manufacturing Engineering

Project Type

Dissertation

Date Accepted

2002-01-09

Accessibility

Unrestricted

Subjects

Chip breaking, prediction, turning, grooved inserts, Machining, Mathematical models, Turning, Steelwork

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