Effect of welding process on welding deformation of automobile control arm

Wang Dafeng; Zhang Guanghe; Hu Quanda; Ren Zheng; Jiang Tong

doi:10.7513/j.issn.1004-7638.2023.02.025

Volume 44 Issue 2

Apr. 2023

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Wang Dafeng, Zhang Guanghe, Hu Quanda, Ren Zheng, Jiang Tong. Effect of welding process on welding deformation of automobile control arm[J]. IRON STEEL VANADIUM TITANIUM, 2023, 44(2): 173-178. doi: 10.7513/j.issn.1004-7638.2023.02.025

Citation:

Wang Dafeng, Zhang Guanghe, Hu Quanda, Ren Zheng, Jiang Tong. Effect of welding process on welding deformation of automobile control arm[J]. IRON STEEL VANADIUM TITANIUM, 2023, 44(2): 173-178. doi: 10.7513/j.issn.1004-7638.2023.02.025

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Effect of welding process on welding deformation of automobile control arm

doi: 10.7513/j.issn.1004-7638.2023.02.025

1.
Ningbo Branch of China Ordnance Research Institute, Ningbo 315103, Zhejiang, China
2.
Zhejiang Ruitai Suspension System Co., Ltd., Ningbo 315502, Zhejiang, China

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Received Date: 2022-11-08
Publish Date: 2023-04-30

Abstract

Abstract

Taking the control arm welding component of automobile parts factory as the research object, a SYSWELD software is used to optimize the welding heat input and welding sequence of control arm components. The results show that when the welding heat input is too low (2015～2266 J/cm), incomplete penetration will occur at the root of the fillet weld between the upper and lower pieces of the control arm. When the welding heat input is moderate (2527～2701 J/cm), the fillet weld can obtain better weld penetration width and penetration depth. In addition, by comparing and analyzing residual stress and deformation atcontrol arm under different welding sequences, it is found out that the welding sequence from the middle to the two sides (①④③⑤⑥②⑦⑧) is conducive to reducing peak residual stress of control arm as a whole. When other welding sequences are used, the peak residual stress and residual deformation of control arm are high. The comparison between the experimental and simulation results indicates that the accuracy of the simulation results is high. The finite element simulation can be used to optimize the welding process of the automobile control arm and improve the welding quality of the control arm products.
- automobile control arm,
- welding deformation,
- SYSWELD,
- finite element simulation

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References(14)

References

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