L-shaped guide rail part machining method

The invention relates to the field of equipment machining, and particularly discloses an L-shaped guide rail part machining method. According to the L-shaped guide rail part machining method, after an L-shaped guide rail is forged, high-temperature aging and low-temperature heat preservation air cooling are carried out, internal stress is removed, the structure is stabilized, the strength of a workpiece is effectively guaranteed, then accurate grinding and chromium plating are carried out on the workpiece, and the hardness of an L-shaped notch of the guide rail part can be effectively increased through chromium plating on the surface of the workpiece; during the chromium plating process of the guide rail part, a tool gasket is designed to be cushioned between a hanging ring and a workpiece so as to effectively prevent an electrode from burning the workpiece in the chromium plating process, and during the grinding process, a tool cushion block is designed, so that the cushion block can be cushioned below the L