Ball Screw Heat Treatment

Ball Screw Heat treatment: According to Zheng Hong's "Research on Precision Ball Screw Machining process Regulations", GCr15 high-carbon chromium Bearing steel is often used as ball screw material.

Bearing steel has the advantages of high hardness, uniform organization, strong wear resistance and high contact fatigue strength after quenching and low temperature tempering, but bearing steel material is generally plastic, medium cutting performance, poor welding performance and temper brittleness.

Therefore, the bearing steel material should be pre-heat treated before grinding the ball screw roughing, and the carbide in the GCr15 material should be spheroidized by spheroidizing annealing to obtain spheroidal or granular carbide organization uniformly distributed on the ferritic matrix, reducing the hardness of the material organization, improving the plastic function of the material, and improving the machining performance of the material metal cutting.

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