Effects of cutting tool thermal conductivity on tool-chip contact length and cyclic chip formation in machining with grooved tools

A. K. Balaji, G. Sreeram, I. S. Jawahir, E. Lenz

Research output: Contribution to journalArticlepeer-review

57 Scopus citations

Abstract

This paper presents an experimental analysis of the effects of cutting tool thermal conductivity on machining performance of grooved tools. A new methodology for defining the tool-chip contact length is grooved tools is proposed. Performance of uncoated carbide grooved tools tested under a range of thermal conductivities (32-92 W/m deg.K) are correlated with the variations of cyclic cutting forces, developed chip length, chip thickness and chip breaking patterns. The thickness of the retarded zone and the grain elongation orientation in the chip are measured along the curled chip and their strong influence on the chip formation process is shown.

Original languageEnglish
Pages (from-to)33-38
Number of pages6
JournalCIRP Annals - Manufacturing Technology
Volume48
Issue number1
DOIs
StatePublished - 1999

Bibliographical note

Funding Information:
The authors gratefully acknowledge the support of the National Science Foundation for this research work. The authors also acknowledge the assistance of Mr. R. Anderson (CRMS, University of Kentucky) in the experimental work.

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

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