Very often, the laser welding is used to secure crankshafts against twisting.
The crankpin is welded to the respective crankshaft by a laser. Before this, a V groove is inserted in the transition area with a hard metal milling pin.
We leave each crankshaft, which is to be installed in a tuned engine. Experience has shown that crankshafts in operation are very often twisted by a few hundredths to a few tenths. For this, the engine does not necessarily have to be tuned. The maximum permitted rotation is a maximum of approx. 0.03 mm.
Already twisted crankshafts are gladly aligned by us and then laser welded.