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

doi:10.1007/s11706-009-0042-z

Front Mater Sci Chin

2009, Vol. 3

Issue (3) : 306-309 https://doi.org/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

Xue-qiu ZHANG¹(

), Jian-guo YANG^1,2, Xue-song LIU¹, Xu-hui CHEN¹, Hong-yuan FANG¹, Shen QU²

1. State Key Laboratory of Advanced Welding Production Technology, Harbin Institute of Technology, Harbin 150001, China; 2. Shenyang Liming Aero-Engine Group Corporation, Shenyang 110043, China

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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

Corresponding Author(s): ZHANG Xue-qiu,Email:jackeee90@163.com

Issue Date: 05 September 2009

Cite this article:

Xue-qiu ZHANG,Jian-guo YANG,Xue-song LIU, et al. Numerical simulation of weld tab length influence on welding residual stress and distortion of aero-engine disk[J]. Front Mater Sci Chin, 2009, 3(3): 306-309.

URL:

https://academic.hep.com.cn/foms/EN/10.1007/s11706-009-0042-z
https://academic.hep.com.cn/foms/EN/Y2009/V3/I3/306

Fig.1 Finite element model of two blades

Fig.2 Finite element model of weld tab

Fig.3 Temperature dependency of mechanical properties

Fig.4 Temperature dependency of thermal physical properties

Fig.5 Welding distortion of disk with 10, 50, and 100 mm weld tab lengths

Fig.6 Welding distortion of disk with 25, 50, and 75 mm weld tab length

Fig.7 Welding residual of disk with different weld tab lengths (0-0.05 m)

Fig.8 Welding residual of disk with different weld tab lengths (0.05-0.1 m)

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