Finite Element Analysis of Laser Drilling on Ti-6Al-4V Alloy

Titanium alloy (Ti-6Al-4V) is high strength and high thermal resistance alloy. Hole formation is very difficult on this material by traditional drilling process. Laser drilling is an untraditional method that is used for creating hole on titanium alloy. Laser drilling is a thermal energy-based machining process. Selected input parameters and their value affect material quality characteristics. In present study, temperature and thermal stress distribution have been predicted on selected parameters (power and cutting speed) for through-hole formation of 2 mm diameter on titanium alloy during Nd:YAG laser drilling. Finite element software (ANSYS) has been used to simulate the problem and found predicted selected responses are suitable for laser drilling of titanium alloy.