METHOD OF SHAFT RECOVERY Russian patent published in 2012 - IPC B23P6/02 B23K33/00 

FIELD: process engineering.

SUBSTANCE: invention relates to shaft-type part worn-out surface recovery or hardening. Shaft journal is turned to produce lateral surface at distance from bearing fillet corresponding to shaft journal nonhardened section at angle to temporary recess bottom. Chamfer is produced at angle of 15-35° to vertical plane over the entire width of thin-wall strip made up of split ring or semi-rings. Thin-wall strip is secured at distance from said lateral surface of shaft journal equal to 1.0-3.0 mm along bottom of aforesaid temporary recess to make a groove between said lateral surface and strip chamfer. Thin-wall strip is welded to shaft journal in protective gases on arranging electrode in said groove to make annular weld seam.

EFFECT: better manufacturability and quality of shaft reconditioning.

2 dwg