Forging method of automobile aluminum alloy control arm

Abstract

The invention discloses a forging method of an automobile aluminum alloy control arm. According to the forging method, an extruded round bar is adopted as a blank, the blank sequentially undergoes themachining processes of first-pass roller forging, second-pass roller forging, flattening and bending and final forging forming after being heated, two passes of roller forging are adopted, so that under the condition that reasonable material distribution and material deformation are met, the situation that irregular bending is caused when large deformation is generated in the local area of the blank in the flattening and bending process can be avoided, then streamline forming of the control arm is reasonable, the situations that the blank is deformed unevenly and the blank is not fully filledare prevented, and the production efficiency can also be improved; and the control arm forged and machined through the method is good in forming, and is free of the defects of folding and shrinkage holes and the like. The forging method of the automobile aluminum alloy control arm is used for production and machining of the automobile aluminum alloy control arm.

Description

technical field [0001] The invention relates to the technical field of forging, in particular to a forging method of an automobile aluminum alloy control arm. Background technique [0002] As the force transmission and guiding element of the automobile system, the control arm transmits various forces acting on the wheels to the body, and at the same time ensures that the wheels move according to a certain trajectory. With the development of manufacturing technology and material technology, automobile control arms are gradually replaced by forging instead of traditional casting. The complete technological process of the aluminum alloy suspension control arm is generally blanking-rounding-medium frequency induction heating-roll forging-flattening and bending-secondary heating-die forging-hot edge cutting-solution-aging, but the existing The production process is easy to cause defects such as folding and shrinkage holes in the processed control arm, and the blank needs to be h...

AI Technical Summary

Problems solved by technology

The complete technological process of the aluminum alloy suspension control arm is generally blanking-rounding-medium frequency induction heating-roll forging-flattening and bending-secondary heating-die forging-hot edge cutting-solution-aging, but the existing The production process is easy to cause defects such as folding and shrinkage holes in the processed control arm. The blank needs to be heated many times, and the processing efficiency is low.

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