Tool wear characteristics in turning of titanium alloy Ti-6246

A. Jawaid, Che Hassan Che Haron, A. Abdullah

Research output: Contribution to journalArticle

152 Citations (Scopus)

Abstract

Research work has been carried out to determine the behaviour of titanium alloys during the process of turning. Most of the information available is based on observations made during the commercial production of titanium components in the aerospace industry. Titanium alloys have been classified as 'difficult-to-machine' materials. These alloys are used widely where the strength-to-weight ratio and corrosion resistance are of the utmost importance. In the present work, uncoated cemented carbide tools were used in the turning of Ti-6% Al-2% Sn-4% Zr-6% Mo. The experiments were carried out under dry cutting conditions. The cutting speeds selected in the experiment were 60, 75, and 100 m min-1. The depth of cut was kept constant at 2.0 mm. The feed rates used in the experiment were 0.25 and 0.35 mm per revolution. The effects of different types of chip-breaker geometry and grain size of the tool were observed. Tool wear was measured under an optical microscope and the tool life for machining titanium alloy, Ti-6246, was determined. SEM analysis has been carried out on the worn tools to determine the tools wear mechanisms. The results have shown that inserts with fine grain size and a honed edge have a longer tool life. At higher cutting speeds the tool failure was due to maximum flank face wear and excessive chipping on the flank edge.

Original languageEnglish
Pages (from-to)329-334
Number of pages6
JournalJournal of Materials Processing Technology
Volume92-93
DOIs
Publication statusPublished - 30 Aug 1999
Externally publishedYes

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Titanium alloys
Wear of materials
Carbide tools
Aerospace industry
Experiments
Titanium
Corrosion resistance
Machining
Microscopes
Scanning electron microscopy
Geometry

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Tool wear characteristics in turning of titanium alloy Ti-6246. / Jawaid, A.; Che Haron, Che Hassan; Abdullah, A.

In: Journal of Materials Processing Technology, Vol. 92-93, 30.08.1999, p. 329-334.

Research output: Contribution to journalArticle

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