Q:What is the purpose of the annealing process for steel?

① Improve or eliminate structural defects and residual stress caused by steel casting, forging, rolling, and welding processes to prevent workpiece deformation and cracking.

② Soften the workpiece for cutting.

③ Refine the grains and improve the structure to improve the mechanical properties of the workpiece.

④ Prepare the structure for final heat treatment (quenching and tempering).

Time：20/05/2024 12:18:26