Numerical simulation of weld tab length influence on welding residual stress and distortion of aero-engine disk

Xue-qiu ZHANG; Jian-guo YANG; Xue-song LIU; Xu-hui CHEN; Hong-yuan FANG; Shen QU

doi:10.1007/s11706-009-0042-z

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Front. Mater. Sci. ›› 2009, Vol. 3 ›› Issue (3) : 306-309. DOI: 10.1007/s11706-009-0042-z

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Numerical simulation of weld tab length influence on welding residual stress and distortion of aero-engine disk

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Abstract

In order to control the welding residual stress and distortion to the greatest extent, based on the MSC.MARC software platform and adopting the impending critical value methods gradually, the welding residual stress and distortion are calculated through varying the weld tab length values. The results show that different weld tab lengths only have a slight effect on welding residual stress but a significant effect on welding distortion. According to the calculation results with different weld tab lengths, the critical length value for the 100 mm-length TC4 alloy weld for electron beam welding of an integral disk should be 50 mm or so.

Keywords

weld tabs / temperature field / residual stress / distortion

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Xue-qiu ZHANG, Jian-guo YANG, Xue-song LIU, Xu-hui CHEN, Hong-yuan FANG, Shen QU. Numerical simulation of weld tab length influence on welding residual stress and distortion of aero-engine disk. Front Mater Sci Chin, 2009, 3(3): 306‒309 https://doi.org/10.1007/s11706-009-0042-z

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Acknowledgements

The authors gratefully acknowledge the support provided by Shenyang Liming Aero-Engine Group Corporation. This research was sponsored by the Postdoctoral Science Foundation of China (Grant No. 20070410900) and the Heilongjiang Postdoctoral Fund (Grant No. LBH-Z07129).