The heat treatment process, like the processing of other items, has many different operation steps and sequences, so in order to ensure the smooth progress of the operation sequence, we need to have a detailed understanding to avoid operational errors and affect the use of the equipment.

First of all, it depends on what kind of heat treatment we do. Generally speaking, quenching and tempering is carried out after rough machining and before semi-finishing. Processes such as quenching, nitriding, and carburizing are generally performed after semi-finishing and before grinding. Surface oxidation like iron, such as blackening, phosphating, etc., should be done after finishing. Annealing is generally uncertain before roughing, and books such as heat treatment can be consulted in this regard.

Generally, the heat treatment of parts is to improve the hardness and strength of the parts. The heat treatment process is generally arranged before finishing, leaving a small amount of processing, and then finishing after overheating.