A Forming Method of Negative Angle in Semicircle Area of ​​Automobile Control Arm

Abstract

The invention relates to the field of automobiles and particularly provides a forming die and a forming method of an automobile control arm semicircle area negative corner. The forming die comprises a first die body, a second die body and a third die body; and the forming die is characterized in that the first die body is composed of a first die material-pressing plate, a first die flanging insert and a first die lower die body, the first die material-pressing plate is arranged above the first die lower die body, the position, located on the right side of the first die material-pressing plate, of the first die lower die body is provided with the first die flanging insert, and the bottom of the right side of the first die flanging insert is exposed out of the right side of the first die lower die body. Compared with the prior art, machining is convenient, and the light weight target of a control arm with a negative corner structure is achieved; and complex forming and flanging can be effectively avoided, and the production and manufacturing cost is lowered.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to a method for forming a negative angle in a semicircle area of ​​an automobile control arm. Background technique [0002] Conventional car control arms are straight flanged in the semicircle area, without negative angles. With the requirements for strength, stiffness and weight of the product, and limited by the space between the control arm and the brake disc, the semicircle area of ​​part of the control arm is currently designed with a negative angle. This structure with a negative angle increases the control arm The strength and rigidity of the control arm reduce the material thickness of the control arm and realize the lightweight goal of the control arm, which will be widely used. However, due to the limited opening space in the negative angle area, it is difficult to return the material. If the traditional wedge structure is used to develop , the strength of the mold is difficult...

AI Technical Summary

Problems solved by technology

With the requirements for strength, stiffness and weight of the product, and limited by the space between the control arm and the brake disc, the semicircle area of ​​part of the control arm is currently designed with a negative angle. This structure with a negative angle increases the control arm The strength and rigidity of the control arm reduce the material thickness of the control arm and realize the lightweight goal of the control arm, which will be widely used. However, due to the limited opening space in the negative angle area, it is difficult to return the material. If the traditional wedge structure is used to develop , the strength of the mold is difficult to guarantee, the wear is serious, and it is easy to break, which cannot meet the mass production. At the same time, the development of molds, maintenance and manufacturing costs are relatively high

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