Abstract

The crankshaft is a core component of today’s internal combustion engines and during operation is subject to complex mechanical loading. The transition radii of the crankpins to the crankwebs and the outlets of the oil ducts for lubricating the crankshaft journals and pins are the points that are susceptible to fatigue fractures. For this reason, expensive surface strengthening measures are integrated in the production process. IABG has developed a new test concept for crankshafts to examine the effectiveness of these measures in a fatigue strength test under loading conditions that are as realistic as possible.

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