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Experimental study on machining of titanium alloy (Ti64) by CVD and PVD coated carbide inserts

Author

Listed:
  • S. Ramesh
  • L. Karunamoorthy
  • V.S. Senthilkumar
  • K. Palanikumar

Abstract

Titanium is a material which is used in aerospace and other industries is difficult to machine. Due to the growing acceptance of titanium in many industries, near-nett shape of these materials by machining cannot be eliminated fully. There are problems encountered when machining titanium in shops working with aircraft alloys. Machining of titanium alloys requires cutting forces slightly higher than those needed to machine steels, but these alloys have metallurgical characteristics that make them more difficult to machine than steels of equivalent hardness. The beta alloys are the most difficult titanium alloys to machine. This paper discusses the study of metallurgical and microstructure analysis of Ti-6Al-4V alloys. Experiments were carried out using two different inserts having different coating methods (PVD and CVD) and different nose radius (0.8 mm and 1.2 mm). The performance of machining has been studied in terms of cutting force, tool wear and surface finish.

Suggested Citation

  • S. Ramesh & L. Karunamoorthy & V.S. Senthilkumar & K. Palanikumar, 2009. "Experimental study on machining of titanium alloy (Ti64) by CVD and PVD coated carbide inserts," International Journal of Manufacturing Technology and Management, Inderscience Enterprises Ltd, vol. 17(4), pages 373-385.
    • Handle: RePEc:ids:ijmtma:v:17:y:2009:i:4:p:373-385
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