Abstract：Aiming at the low milling efficiency of TC21 titanium alloy shaft beam double closed angle deep groove cavity parts, this article studies the high-efficiency cutting of deep groove cavity and double closed angle region of TC21 titanium alloy shaft beam from the aspects of zero point system, fixture design, part process boss design, tooling scheme, cutting parameters, tool change method, et al, based on the production practice, material and structure analysis. It summarizes a complete set of zero point positioning and large overhang fast feed milling solutions. Compared with the original plan, the processing cycle is shortened by more than 50%.
2020, 
