A method for increasing the fatigue strength of crankshafts

摘要

A method for increasing the fatigue strength of a crankshaft (1), whereby at the transition radii (20) between the crank web and crank pin (18) by means of at least one compacting tool in defined regions of the transition radii (20) pressure is introduced, characterized in that the defined areas is a function of the required strength of structural component parts in front of the introduction of the pressure in the transition radii (20) is determined and be determined and the pressure partially in the defined areas of at least one transition radius (20) with simultaneous action of a back pressure is introduced, wherein the pressure and counterpressure of by means of a pincer-like device (28) is introduced.