Reason of heat treatment in machining

1. Remove the internal stress of the blank. It is mainly used for casting, forging and welding parts.
2. Improve the processing conditions to make the raw materials easy to process. Such as annealing, normalizing, etc.
3. Improve the comprehensive mechanical function of metal raw materials. For example, quenching and tempering.
4. Increase the hardness of raw materials. For example, quenching, carburizing and quenching, etc.

Machining parts for the corresponding heat treatment process, which helps to improve the hardness, wear resistance and strength of machined parts, so that the accuracy and service life of machined parts are greatly enhanced.