Beschreibung
Hard turning and deep rolling are two processes with high potential to face the challenge of highly flexibleand productive machining of hardened parts. On the one hand, the processes of grinding and honingare very productive to manufacture roller bearings, but on the other hand they are very inefficient forfrequently changing part geometries. In addition, they do not lead to an increased endurance due to highcompressive residual stresses. Hard turning and deep rolling are appropriate processes to achieve this.A hybrid process of hard turning and deep rolling can help to shorten the process chain and to optimizethe influence on surface quality, because of defined contacts between tool and surface. A concept ofmachining roller bearing inner rings with a hybrid process is presented. A force model to predict theresulting turn-rolling forces is introduced. Additionally the effect of feed and the new process parametershift in feed direction xfon surface roughness are discussed within this paper.
