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Manufacture technology for steering knuckle arm used for automobile

A technology of steering knuckle arm and manufacturing process, applied in the field of machining, can solve the problems of poor internal organization, low safety performance, residual internal stress, etc.

Inactive Publication Date: 2020-10-30
ZHEJIANG YUEJIN FORGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The steering knuckle arm, also known as the trapezoidal arm, is the last stage of the power transmission part of the steering transmission device. The steering knuckle arm is installed on the left and right steering knuckles, and the other end is connected with a ball pin and a tie rod. Most of the existing steering knuckle arm forming processes use upsetting. The head method achieves the connection tightness of the internal structure of the part. Compared with the workpiece produced by direct cutting, the toughness is better. However, there are multi-stage temperature changes in the production process of the heading process, and it is very easy to retain internal stress, resulting in cracks, and the internal structure is not tight. , the safety performance is not high

Method used

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Embodiment Construction

[0039] The following clearly and completely describes the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0040] A manufacturing process for a steering knuckle arm for a vehicle, comprising the steps of:

[0041] S1. Feed material: select low-alloy steel whose alloy elements account for no more than 5% as the forging blank;

[0042] S2, pre-cutting: using a band saw machine, initially locating the size, and cutting the forging blank in step S1 into a pre-blank;

[0043] S3. Heating: heating the preform in a medium frequency heating furnace, first heating the preform in step S2 to 380°C-480°C, and then heating to 1110°C-1170°C;

[0044...

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Abstract

The invention relates to a manufacture technology for a steering knuckle arm used for an automobile. The manufacture technology comprises the following steps of: S1: feeding materials; S2: pre-cutting; S3: heating: S4: forging; S5: trimming; S6: conducting heat straightening; S7: tempering; S8: carrying out surface shot blasting; S9: conducting flaw detection; S10: spraying paint; S11: conductingmachining; S12: carrying out complete inspection; and S13: packaging, and storing in a warehouse. The invention has the beneficial effects that the manufacture technology for the steering knuckle armused for the automobile is provided, so that the mechanical property of the produced and manufactured steering knuckle arm is greatly improved, tissues are compact, safety performance meets a vehiclesafety design requirement, and a size is accurate and conforms to a use requirement.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to a manufacturing process of a vehicle steering knuckle arm. Background technique [0002] The steering knuckle arm, also known as the trapezoidal arm, is the last stage of the power transmission part of the steering transmission device. The steering knuckle arm is installed on the left and right steering knuckles, and the other end is connected with a ball pin and a tie rod. Most of the existing steering knuckle arm forming processes use upsetting. The head method achieves the connection tightness of the internal structure of the part. Compared with the workpiece produced by direct cutting, the toughness is better. However, there are multi-stage temperature changes in the production process of the heading process, and it is very easy to retain internal stress, resulting in cracks, and the internal structure is not tight. , the safety performance is not high. Conten...

Claims

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Application Information

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IPC IPC(8): B23P15/14
CPCB23P15/14
Inventor 吴建鑫朱维丰张晓茅潘志宵孙正素
Owner ZHEJIANG YUEJIN FORGING
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