Aircraft aluminum alloy thin frame and machining method thereof

The invention relates to an aircraft aluminum alloy thin frame and a machining method thereof, the aircraft aluminum alloy thin frame comprises a frame body, and four fixing blocks used for being matched with a numerical control machine tool to prevent a clamp from damaging the frame body are arranged on the frame body. In order to prevent a product from being extruded by a cold machining pressing plate, a fixing block is reserved on a frame body in combination with a finished product size diagram of the product during blanking of the frame body, the product is roughed by fixedly clamping the fixing block and adopting a hard alloy cutter with two blades, the chip removal effect is improved, and the fixing block is removed by adopting wire cut electrical discharge machining after finish machining. According to the non-contact type discharge machining, macroscopic cutting force does not exist between a tool electrode and a workpiece, size errors caused by mechanical deformation are avoided, therefore, the risk