Application welding on a crankshaft

The bearing journals on this crankshaft of a vintage motorcycle were worn and the bearings came loose. Trough application welding with a laser beam, tenths of a millimeter were added.

First, the worn seats were turned clean. Then an alloy with appox 58 HRC was applied trough laser application welding. The diameter of the seats was then turned to diameter on lathe to fit the new bearings.