Torsion shaft manufacturing process

Abstract

The invention provides a torsion shaft manufacturing process. The torsion shaft manufacturing process comprises the following specific steps that cold rolling is conducted, specifically, a blank rod is put into cold rolling equipment to be subjected to cold rolling forming, and a prototype torsion shaft is obtained; heat treatment: carrying out heat treatment on the prototype torsion shaft to obtain a formed torsion shaft; and pre-twisting is conducted, specifically, the formed torsion shaft is subjected to strong twisting and plastic deformation, and the finished torsion shaft is obtained. The torsion shaft manufactured through the method has good surface stress distribution, high strength and long fatigue life, the material performance and the fatigue strength are improved, and the machining procedures, materials and labor force are saved.

Description

technical field [0001] The invention relates to the field of mechanical processing, in particular to a manufacturing process of a torsion shaft. Background technique [0002] The torsion shaft is an elastic part in the vehicle suspension device. One end of the shaft is fixed in the vehicle body, and the other end is fixed in the balance elbow. Therefore, when the vehicle encounters an obstacle while driving, the balance elbow rotates to twist the torsion shaft. Torsion dampens the impact and vibrations the vehicle receives. [0003] The traditional manufacturing process of torsion shaft is forging, machining, heat treatment and subsequent finishing process. On the basis of the shaft material with a large outer diameter, part of the material is removed to achieve the required shaft diameter. This manufacturing process is troublesome. Laborious, cumbersome processes, waste of materials and other issues. Contents of the invention [0004] In order to solve the above problem...

AI Technical Summary

Problems solved by technology

[0003] The traditional manufacturing process of torsion shaft is forging, machining, heat treatment and subsequent finishing process. On the basis of the shaft material with a large outer diameter, part of the material is removed to achieve the required shaft diameter. This manufacturing process is troublesome. Problems such as laborious, cumbersome process, waste of materials, etc.

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