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Shock absorbing bracket for vehicle and preparation method of shock absorbing bracket

A technology for shock absorbing brackets and vehicles, which is applied to suspensions, vehicle parts, elastic suspensions, etc., to achieve the effects of improving machining performance, increasing wear resistance, and improving machining performance and wear resistance

Inactive Publication Date: 2019-03-22
NINGBO SHUAIYUAN ELECTRONICS ELEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the current shock-absorbing bracket is basically made of aluminum plate 6061 plus natural aging. 1.2%, Cr0.04-0.35%, Zn≤0.25%, Ti≤0.15%, and the balance is Al and unavoidable impurities. However, the Vickers hardness HW of the shock absorber is only 9-11, and the mechanical properties ( GB / T 3880.2-2006) tensile strength ≥ 205MPa, yield strength ≥ 110MPa, elongation after fracture A50mm ≥ 16, which cannot meet the increasing requirements

Method used

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  • Shock absorbing bracket for vehicle and preparation method of shock absorbing bracket
  • Shock absorbing bracket for vehicle and preparation method of shock absorbing bracket

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Aluminum alloy raw materials for the composition of the vehicle shock absorber: Si0.47%, Fe0.37%, Cu0.15%, Mn0.02%, Mg0.84%, Cr0.18%, Zn0.01%, Ti0 .02%, Bi0.07%, Ga0.03%, and the balance is Al and unavoidable impurities. The aluminum alloy raw materials are smelted and poured to form an aluminum plate, and then machined (including cutting, punching, bending, Hole cutting, edge trimming, chamfering) to obtain bracket blanks;

[0021] The stent blank is first ultrasonically cleaned: the voltage U is 13V, the current I is 150A, the vibration frequency range is 60kHz, and the power density is 0.9W / C, and then the stent blank is welded by argon arc at 20°C. The purity of argon in welding is not less than 99.99%, and the water content is not more than 50mg / m 2 , the gas flow rate is 14L / min;

[0022] After the bracket blank is heat treated, it is first artificially aged at 180°C for 6 hours, and then subjected to a second ultrasonic cleaning after deburring: the vibration f...

Embodiment 2

[0024] Aluminum alloy raw materials for the composition of vehicle shock absorbers: Si0.6%, Fe0.35%, Cu0.3%, Mn0.1%, Mg1.05%, Cr0.21%, Zn0.15%, Ti0 .08%, Bi0.05%, Ga0.02%, and the balance is Al and unavoidable impurities. The aluminum alloy raw materials are smelted and poured to form an aluminum plate, and then processed by machining (including cutting, punching, bending, Hole cutting, edge trimming, chamfering) to obtain bracket blanks;

[0025] The stent blank is first ultrasonically cleaned: the voltage U is 13V, the current I is 150A, the vibration frequency range is 70kHz, and the power density is 0.85W / C, and then the stent blank is welded by argon arc at 18°C. The purity of argon in welding is not less than 99.99%, and the water content is not more than 50mg / m 2 , the gas flow rate is 15L / min;

[0026] After the bracket blank is heat treated, it is first artificially aged at 178°C for 7 hours, and then subjected to a second ultrasonic cleaning after deburring: the vi...

Embodiment 3

[0028] Aluminum alloy raw materials for the composition of vehicle shock absorbers: Si0.5%, Fe0.4%, Cu0.35%, Mn0.08%, Mg0.92%, Cr0.18%, Zn0.05%, Ti0 .1%, Bi0.03%, Ga0.01%, and the balance is Al and unavoidable impurities. The aluminum alloy raw materials are smelted and cast to form an aluminum plate, and then processed by machining (including cutting, punching, bending, Hole cutting, edge trimming, chamfering) to obtain bracket blanks;

[0029] The stent blank is first ultrasonically cleaned: the voltage U is 12V, the current I is 152A, the vibration frequency range is 55kHz, and the power density is 0.95W / C, and then the stent blank is welded by argon arc at 25°C. The purity of argon in welding is not less than 99.99%, and the water content is not more than 50mg / m 2 , the gas flow rate is 13L / min;

[0030] After the bracket blank is heat treated, it is first artificially aged at 182°C for 5 hours, and then subjected to the second ultrasonic cleaning after deburring: the vi...

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Abstract

The invention relates to a shock absorbing bracket for a vehicle and a preparation method of the shock absorbing bracket, and belongs to the technical field of automobile part products. The shock absorbing bracket for the vehicle is prepared from the components in percentage by mass: 0.4-0.8% of Si, less than or equal to 0.7% of Fe, 0.15-0.4% of Cu, less than or equal to 0.15% of Mn, 0.8-1.2% of Mg, 0.04-0.35% of Cr, less than or equal to 0.25% of Zn, less than or equal to 0.15% of Ti, 0.02-0.10% of Bi, less than or equal to 0.05% of Ga, and the balance of Al and inevitable impurities. According to the shock absorbing bracket for the vehicle and the preparation method of the shock absorbing bracket, 0.02-0.10% of Bi and less than or equal to 0.05% of Ga are added on the basis of an existing 6061 aluminum plate, and combined with T6 aging treatment and two times of different ultrasonic cleaning before and after heat treatment, the mechanical properties and abrasion resistance of the shock absorbing bracket for the vehicle are further improved.

Description

technical field [0001] The invention relates to a shock absorbing bracket for a vehicle and a preparation method thereof, belonging to the technical field of auto parts products. Background technique [0002] Shock absorption is an important issue in the automobile manufacturing process. The quality of the shock absorption effect directly affects the stability and comfort of the car. The shock-absorbing rod is a shock-absorbing device used for the connection between the car body and the car chassis. The shock-absorbing rod is assembled on the shock-absorbing rod bracket, which is connected to the car chassis. The strength of the fixed position plays a vital role in the strength of the entire shock absorption system. [0003] However, the current shock-absorbing bracket is basically made of aluminum plate 6061 plus natural aging. 1.2%, Cr0.04-0.35%, Zn≤0.25%, Ti≤0.15%, and the balance is Al and unavoidable impurities. However, the Vickers hardness HW of the shock absorber i...

Claims

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Application Information

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IPC IPC(8): C22C21/08B23P15/00C21D9/00C22F1/047B60G13/00
Inventor 吴其良
Owner NINGBO SHUAIYUAN ELECTRONICS ELEMENT CO LTD