METHOD FOR WELDING AXLE HOUSING TO AXLE TUBE AND STRUCTURE FOR CONNECTING AXLE HOUSING TO AXLE TUBE

摘要

Disclosed is a method for welding an axle housing to an axle tube, comprising: (a) processing a welding end face (1a) of the axle housing (1) and a welding end face (2a) of the axle tube (2) respectively such that the welding end face of the axle housing and the welding end face of the axle tube mate with each other and are not perpendicular to the axial direction of the axle tube; and (b) aligning and welding the welding end face of the axle tube with the welding end face of the axle housing. Also provided is a structure for connecting an axle housing to an axle tube, which connecting structure comprises an axle housing and an axle tube which are connected by welding, wherein the welding end face of the axle housing and the welding end face of the axle tube are mated with each other and are not perpendicular to the axial direction of the axle tube. Since the welding end faces of the axle housing and of the axle tube are not perpendicular to the axial direction, stress can be distributed on a plurality of cross sections perpendicular to the axial direction, thus dispersing the stress concentration at the welding location and effectively improving the overall fatigue strength of the axle housing and axle tube assembly.