Aluminum alloy thin frame structural parts have the characteristics of light weight, pressure resistance and corrosion resistance, and are widely used in aerospace spare parts to reduce the overall quality of aircraft models and improve flight performance. However, due to the large size of structural parts and high surface quality requirements, the cutting force and clamping force during machining will form residual stress in the material, which will cause the size of the part to change, making it difficult to meet product characteristics.
The current existing processing methods require the use of high-end and high-precision equipment to reduce the cutting amount and perform multiple passes, resulting in low processing efficiency and high production costs. This article takes a high-precision aluminum alloy thin-walled part with a complex shape for aerospace as an example. According to the size of the part, a blank with a chuck is designed, and a reasonable process route is used to effectively carry out cold working, heat treatment and wire cutting. Arrange to avoid dimensional changes caused by stress in thin-walled parts and control the amount of processing deformation.
