Method for manufacturing automobile control arm body blank

A technology of automobile control arm and manufacturing method, which is applied in the field of manufacture of automobile control arm body blanks, can solve the problems of long production cycle, material waste, high energy consumption, etc., and achieve shortened production cycle, small machining allowance and high material utilization rate high effect

Inactive Publication Date: 2015-01-28
吉林金城铸锻有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a liquid die forging method for casting an aluminum alloy control arm body in order to solve the problems of long production cycle, high energy consumption and serious waste of materials in the production of control arm body blanks in the prior art, so as to realize the control arm body of an automobile Overall near-net-shape molding of body blanks

Method used

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  • Method for manufacturing automobile control arm body blank
  • Method for manufacturing automobile control arm body blank
  • Method for manufacturing automobile control arm body blank

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A method for manufacturing an A356 aluminum alloy automobile control arm body blank for liquid die forging with one die and two cavities, comprising the following steps:

[0035]1) Melting alloy melt: use waste aluminum alloy as raw material to prepare Al-Si-Mg series A356 cast aluminum alloy, after the chemical composition, temperature and purity meet the requirements, transfer it to the holding furnace 12 for heat preservation; The above-mentioned holding temperature is 680°C; the above-mentioned scrap aluminum alloys are recovered Al-Si, Al-Mg and Al-Cu series waste aluminum alloy materials; the above-mentioned Al-Si-Mg series cast aluminum alloys are produced in Based on the A356 aluminum alloy, the alloy is improved by adding 0.2% of the light rare earth element lanthanum for alloying;

[0036] 2) Low-pressure pouring aluminum alloy liquid: such as image 3 As shown, a pressure of 0.15 MPa is applied to the casting aluminum alloy liquid in the holding furnace 12, ...

Embodiment 2

[0041] A method for manufacturing a molded three-cavity A357 aluminum alloy automobile control arm body blank, comprising the following steps:

[0042] 1) Melting alloy melt: use waste aluminum alloy as raw material to prepare Al-Si-Mg series cast aluminum alloy, and after the chemical composition, temperature and purity meet the requirements, transfer it to the holding furnace 12 for heat preservation. The holding temperature is 700°C; the waste aluminum alloys are recycled Al-Si, Al-Mg and Al-Cu waste aluminum alloys; the Al-Si-Mg cast aluminum alloys are A357 aluminum alloy.

[0043] 2) Low-pressure pouring aluminum alloy liquid: such as image 3 As shown, a pressure of 0.3 MPa is applied to the casting aluminum alloy liquid in the holding furnace 12, so that the aluminum alloy liquid is poured into the pressure chamber 5 in the center of the metal mold through the infusion pipes 9, 10, and 11 to a set height, and the pressure is released. The remaining aluminum alloy liq...

Embodiment 3

[0048] A method for manufacturing a molded four-cavity ZL114A aluminum alloy automobile control arm body blank, comprising the following steps:

[0049] 1) Melting alloy melt: use waste aluminum alloy as raw material to prepare Al-Si-Mg cast aluminum alloy, after the chemical composition, temperature and purity meet the requirements, transfer it to the holding furnace 12 for heat preservation; The heat preservation temperature is 720°C; the scrap aluminum alloys are recovered Al-Si, Al-Mg and Al-Cu series waste aluminum alloy materials; the Al-Si-Mg cast aluminum alloys are made in ZL114A The alloy improved by alloying with 0.5% rare earth element cerium on the basic condition;

[0050] 2) Low-pressure pouring aluminum alloy liquid: such as image 3 As shown, a pressure of 0.5 MPa is applied to the casting aluminum alloy liquid in the holding furnace 12, so that the aluminum alloy liquid is poured into the pressure chamber 5 in the center of the metal mold through the infusio...

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Abstract

The invention discloses a method for manufacturing an automobile control arm body blank. The method comprises the steps of 1) melting an alloy melt, namely taking waste mixed aluminum alloy as a raw material, preparing an Al-Si-Mg cast aluminum alloy, and after the chemical components, the temperature and the purity are satisfied, transferring into a heat preserving furnace for preserving heat for later use, 2) pouring the aluminum alloy liquid under a low pressure, namely exerting pressure to the cast aluminum alloy liquid in the heat-preserving furnace and pouring the aluminum alloy liquid into the central pressure chamber of a metal die by a set height by use of a delivery pipe, 3) performing pressured filling on the die cavity, namely fully charging the aluminum alloy liquid in the pressure chamber into the die cavity by pressurizing, 4) pressurizing for feeding and solidifying for molding under constant pressure, namely increasing the pressure for feeding and solidifying for molding, and 5) opening the die to take out the blank and performing heat treatment, namely opening the die to take out the blank and performing T6 heat treatment. The method for manufacturing the automobile control arm body blank has the advantages that the material utilization rate reaches up to 80%, the obtained blank is fine in internal structure without shrinkage cavity and shrinkage porosity defects, and excellent in mechanical properties, and can be applied to take the place of a forged aluminum alloy control arm and a steel control arm to realize light weight of the automobile.

Description

technical field [0001] The invention relates to a method for manufacturing an automobile control arm blank. Background technique [0002] The control arm of the automobile is the guiding and force-transmitting part in the suspension system, which elastically connects the wheel and the body through a spherical joint or a bushing respectively. Therefore, the control arm is required to have sufficient rigidity, strength and service life. [0003] The structure of the control arm is divided into single control arm, fork control arm and triangular control arm. The arm body of the single control arm is a straight or curved rod-shaped structure, which is mainly used for multi-link suspensions, one end of which is embedded with a ball joint, connected to the hub, and the other end is press-fitted with a bushing, which is connected to the auxiliary vehicle frame or body. Two single control arms work together to transfer lateral and longitudinal loads from the wheels. The fork...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D18/02C22F1/04
CPCB22D18/04C22F1/04
Inventor 邢书明李金城于佰水王亮
Owner 吉林金城铸锻有限责任公司
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