Titanium precision machining method preventing large deformation of the thin-walled castings mounting flange

The present invention is a method for preventing a large high-precision processing methods alloy thin-walled castings mounting edge deformation, machining titanium alloys belonging Field The present invention adjustment process route, the drilling, milling step ahead of the arcuate slots and increase the stability of the processing, to reduce the machining stress; Pu car processing into the NC, and the entire process using the NC program unattended, uniform removal balance, to avoid the problem of machining large stress caused by uneven human complement the upper blade; extended use arbor the two end faces of the small hole and simultaneously processed to ensure concentricity and two small end of the beating bore; jig clamping improved embodiment, to solve the problem of deformation caused by machining parts chatter, breaking the thin wall large titanium casting installation technology bottleneckEdge deformation, to ensure the part design requirements.