A kind of forging process of left axle shaft of automobile differential gear

An automotive differential and process technology, applied in the field of forging, can solve the problems affecting customer satisfaction, low product accuracy, long production cycle, etc., and achieve the effect of shortening production cycle, solving forging defects, and reducing blanking weight
CN107282849BActive Publication Date: 2020-08-25安徽众鑫科技股份有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
安徽众鑫科技股份有限公司
Publication Date
2020-08-25

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Abstract

The invention provides a forging process of a left half shaft of an automobile differential mechanism and relates to the technical field of forging. The forging process includes the procedures of feeding, heating, forming, edge cutting, hardening and tempering and shot blasting. A free forging drawing-out mold cavity is designed, it is guaranteed that the drawing-out mold cavity is matched with a finish forging mold cavity, a positioning device is designed and arranged on a drawing-out mold, it is guaranteed that the drawing-out mold cavity is matched with the finish forging mold cavity, and the situation that the size of a forging stock obtained after finish forging does not meet drawing requirements due to the fact that the blank making diameter is large or small is avoided. The positioning device is designed on the drawing-out mold, the axial and radial sizes of the forging stock are controlled, the product accuracy is greatly improved, multiple forging defects caused by the fact that the blank making length is large or small are overcome, effective controllability is brought to the production process, and the output per shift is increased.
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Description

technical field

[0001] The invention relates to the technical field of forging, in particular to a forging process for the left half shaft of an automobile differential. Background technique

[0002] The left and right half shafts are a group of important shaft parts in the automobile differential. The diameter of the forging blank of this product is small. The existing forging scheme is to use the turning process to make the billet, and the bar stock φ35 is turned into φ32. The blank is then forged with a friction press. This method is costly, and the shipment per shift is low, the production cycle is long, and the product accuracy is not high, which affects customer satisfaction. Contents of the invention

[0003] (1) Solved technical problems

[0004] Aiming at the deficiencies of the prior art, the invention provides a forging process for the left half shaft of an automobile differential, which is simple, cost-saving and can improve production efficiency.

[0005] (2...

Claims

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