Numerical Investigations of Heat-Assisted Drilling of Superalloy Inconel 718 with Coated Tool and Uncoated Tool

This paper studies the processing of coated tools under heat-assisted machining conditions for Inconel 718. It is found that the performance of coated tools under heat-assisted machining conditions is better than that at room temperature, which can effectively improve the machining process. In the process of drilling Inconel 718, it was found that there is a suitable hot machining temperature to minimize the drilling thrust force. When the hot machining temperature exceeds a certain temperature, the coating superiority of the coated tool will disappear.