A multi-pass spinning stacking thickening forming method

Abstract

The invention belongs to the field of machining methods for disk-shaped parts with thin radial plates and thick wheel flanges, and discloses a multi-pass spinning accumulation thickening forming method. The thickening process of the forming method includes multiple passes, and the slot shapes of spinning rollers of different passes are different; the slot of the spinning roller of each pass can bedivided into three parts, and the section of each part is trapezoidal; the second part is located between the first part of the top surface and the second part, and the thickness of the third trapezoid bottom surface of the section of the third part is the finally required thickness of a plate to be machined; the thickness of the first trapezoid top surface of the section of the first part is theinitial thickness of the plate to be machined, and the volumes of the second part and the first part are gradually decreased by increasing the volume of the third part gradually, till the volumes ofthe first part and the second part are decreased to zero; and thus, the process of gradually thickening the plate from inside to outside through the multiple passes is achieved. Through the forming method, the controllable thickening process of the plate is achieved, and the formed plate is uniform in thickness; and the forming quality is high, and the forming process is stable.

Description

technical field [0001] The invention belongs to the field of processing methods for thick rim discs of thin webs, and more specifically relates to a multi-pass spinning accumulation thickening forming method. Background technique [0002] With the continuous development of the automobile industry, due to the needs of energy saving and environmental protection, the lightweight design of auto parts has become an extremely important part. Automobile lightweight means to reduce the overall quality of the automobile as much as possible on the premise of ensuring that the performance and quality of the automobile are not affected, so as to improve the dynamic performance of the automobile. The lightweight design of automobiles is mainly reflected in three aspects: structural optimization design, material lightweight and application of advanced manufacturing technology. [0003] For this type of disc with thin web and thick rim, the thicker edge ensures the strength of the rim of ...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above defects or improvement needs of the prior art, the present invention provides a multi-pass spinning stacking and thickening forming method. By designing the groove structure of the key component in the spinning forming process, the purpose is to Control the material deformation of each pass in the process, and realize the optimization of the forming direction and area thickening, thereby solving the technical problems of insufficient stability of the formed part, uneven thickness and poor forming quality

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