关键词: 桥壳；豪克能；焊缝应力；残余应力；消除应力设备

Abstract: Due to the different road conditions, the axle housing will be affected by the impact load during the driving, which may lead to the deformation or fracture of the axle housing. In the axle housing structure, the welding seam position is one of the areas where the stress concentration is more obvious, and the welding seam stress at the welding seam position of the lower reaction rod bracket in the axle housing is the most concentrated. Therefore, the position is the easiest to crack and affects the service life of the axle housing and the safety of the whole vehicle. In this paper, Hawking welding stress relief equipment was used to deal with the weld stress concentration area, and explored the treatment effect of Hawking welding stress relief technology on the residual stress at the weld of axle housing.

Key words: Axle housing; Hawking; Welding stress; Residual stress; Stress relief equipment