Learn about the lower rack
Time:
2021-09-15
Rack forging and machining may generate residual stress. If heat treatment is carried out without treatment, it will be superimposed with quenching distortion, and large distortion will occur. Therefore, annealing, normalizing, quenching and tempering, etc. should be used to reduce stress in advance. to address residual stress.
Rack forging and machining may generate residual stress. If heat treatment is carried out without treatment, it will be superimposed with quenching distortion, and large distortion will occur. Therefore, annealing, normalizing, quenching and tempering, etc. should be used to reduce stress in advance. to address residual stress.
Generally, annealing and normalizing are often used to improve the cutting performance and surface roughness of the gear, and reduce the residual stress of cutting. Quenching and tempering heat treatment is suitable for strengthening the core strength and toughness of gears and reducing quenching distortion. Preparatory heat treatment of gears is very important to control gear distortion. Preparatory heat treatment includes annealing, normal normalizing, isothermal normalizing and quenching and tempering heat treatment. The preparatory heat treatment process can be arranged before machining, in the middle of machining, etc. as required.
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