Beranoagirre, A.; Urbikain, G.; Calleja, A.; López de Lacalle, L.N. Drilling Process in γ-TiAl Intermetallic Alloys. Materials2018, 11, 2379.
Beranoagirre, A.; Urbikain, G.; Calleja, A.; López de Lacalle, L.N. Drilling Process in γ-TiAl Intermetallic Alloys. Materials 2018, 11, 2379.
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.
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