Abstract
Abstract Previous investigations have shown that load carrying capacity of gears manufactured by wire EDM is three times higher than ground gears for short time contact fatigue tests. Typical EDM surfaces are characterized by discharge craters, which lead to beneficial running-in topography formation. Investigations of tooth flank load-carrying capacity of specimen represent the tribological performance of rolling contacts. In gear testing, a tribological comparable disk-on-disk test is performed to reduce effort and costs during machining gears with complex geometries. For this purpose, testing shafts with high geometrical accuracy and different surface qualities were manufactured by wire EDM on a single-axis rotary indexing table. Following, the surface integrity and performance of these specimens on the disk-on-disk test were investigated focusing on short time contact fatigue strength and running-in behavior.
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