Preprint Article Version 1 This version is not peer-reviewed

Drilling of γ-TiAl Intermetallic Alloys. Mechanistic Model to Predict Cutting Force and Torque

Version 1 : Received: 26 October 2018 / Approved: 29 October 2018 / Online: 29 October 2018 (03:43:09 CET)

A peer-reviewed article of this Preprint also exists.

Beranoagirre, A.; Urbikain, G.; Calleja, A.; López de Lacalle, L.N. Drilling Process in γ-TiAl Intermetallic Alloys. Materials 2018, 11, 2379. Beranoagirre, A.; Urbikain, G.; Calleja, A.; López de Lacalle, L.N. Drilling Process in γ-TiAl Intermetallic Alloys. Materials 2018, 11, 2379.

Journal reference: Materials 2018, 11, 2379
DOI: 10.3390/ma11122379

Abstract

Gamma titanium aluminides (γ-TiAl) present an excellent behaviour under high temperature conditions, being a feasible alternative to nickel-based superalloy components in aeroengine sector. However, considered as a difficult to cut material, process cutting parameters require special study to guarantee components quality. In this work, developed drilling mechanistic model is a useful tool in order to predict drilling force (Fz) and torque (Tc) for optimal drilling conditions determination. The model is validated for three types of Gamma-TiAl alloys. Integral hard metal end-drilling tools and different cutting parameters (feeds and cutting speeds) are tested in three different sized holes for each alloy.

Subject Areas

gamma-TiAl; superalloys; slight materials; drilling; titanium aluminides

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