Forming method for rzeppa constant-velocity universal joint finish forge piece

Abstract

The invention relates to a forming method for a rzeppa constant-velocity universal joint finish forge piece. The forming method comprises the following steps that 1) material breaking is performed; 2)primary shot blasting is performed; 3) heating is performed; 4) warm forging forming is performed; 5) temperature control cooling is performed; 6) secondary shot blasting is performed; 7) oil spraying is performed; 8) cold finishing is performed; 9) cleaning is performed; and 10) rust-proof treatment is performed. The head section and the tail section of a round bar material are removed, the twoends of the round bar material is prone to be extruded and deformed by a clamp during clamping and mounting, the head section and tail section after being extruded and deformed are removed so that thestrength influence on the finish forge piece can be effectively avoided; meanwhile, the removed head section and the removed tail section are recovered to be re-melted, so that further waste of a rawmaterial is avoided; staged temperature control cooling is performed on the formed workpiece, and the influence of rapid cooling on the overall strength of the workpiece is avoided; through shot blasting and oil spraying treatment, an oxidation layer on the working surface can be effectively eliminated, and meanwhile, further cooling and lubricating treatment can be realized.

Description

technical field [0001] The invention belongs to the technical field of universal joint components, and in particular relates to a forming method of a cage-type constant velocity universal joint precise forging. Background technique [0002] The constant velocity universal joint is one of the key components of the car, which is directly related to the steering performance of the car. Its performance and lifespan play a vital role in improving the power and maneuverability of the entire car. Precision forging is one of the key components of constant velocity universal joints, and it is also one of the most difficult components of automobile localization technology. In the prior art, there are generally defects such as serious waste, poor strength, and unstable connection in the forming process of precision forgings. Contents of the invention [0003] In order to solve the above technical problems and defects, the present invention provides a method for forming precision fo...

AI Technical Summary

Problems solved by technology

In the existing technology, the forming process of precision forgings generally has defects such as serious waste, poor strength, and unstable connection.

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