Title: Optimising the milling of titanium aluminide alloys

Authors: A. Beranoagirre, L.N. Lopez de Lacalle

Addresses: Department of Mechanical Engineering, University of the Basque Country, EUP, Plaza de Europa 1, 20018 San Sebastian, Spain. ' Department of Mechanical Engineering, University of the Basque Country, ETSII, c/Alameda de Urquijo s/n, 48013 Bilbao, Spain

Abstract: The work here presented is framed in the line of development manufacturing processes for a new generation of slight materials with good mechanical properties, the Gamma TiAl alloys. These alloys were developed to achieve a reduction of weight in different components for aviation and automotion where very high temperatures are the main factor. In this application fields, several components must withstand high temperatures maintaining a high resistance. The superalloys of type Gamma TiAl are an attractive alternative to nickel-based alloys, due to the high ratio between resistance and weight and resistance and low corrosion. This work presents the results from milling tests on three types of Gamma TiAl alloys. End-milling tools made of integral hard metal were used, applying different feeds and cutting speeds. The influence of cutting speed and feed is discussed.

Keywords: gamma TiAl alloys; titanium aluminide; titanium alloys; superalloys; lightweight materials; end milling; cutting speed; feed; titanium aluminium alloys.

DOI: 10.1504/IJMMS.2010.036067

International Journal of Mechatronics and Manufacturing Systems, 2010 Vol.3 No.5/6, pp.425 - 436

Published online: 17 Oct 2010 *

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