The thin-walled parts are made of 2D14 high-strength cemented carbide. The overall volume is relatively large and the walls are thin. The requirements for dimensional accuracy and geometric tolerances are high. The milling process of parts mainly involves cavity milling and contour milling. The parts are fixed through the use of pressure plates, combined fixtures and machine tool worktables.
After the parts are processed, the stress release caused by the clamping of pressure plates and other fixtures will lead to dimensional deviations. The size of the final processed thin-walled parts changes and cannot meet the high-precision characteristic requirements of aerospace parts.
