Patent ID: 7325305
Filing Date: 2008-02-05
Classification: B21D,B23P,F01L,F16C,F16D,F16H,Y10T

Abstract:
1. A method of manufacturing a worked shaft comprising the steps of: placing at least one component to be mounted on an at least partially hollow shaft on a threading area of a stretching and chucking device, the component having an inner opening with an inside diameter, the stretching and chucking device having at least one chucking element which acts on an inside circumference of the shaft, and the shaft having a component approach ramp area that facilitates movement of the component from the threading area to the shaft; stretching the shaft with the stretching and chucking device such that in at least one shaft mounting site on the shaft an original diameter is reduced to a stretched diameter that is larger than the component inside diameter; moving the component onto the shaft and displacing the component to the mounting site by applying a force; and releasing the stretching and chucking device such that the stretched diameter enlarges in a direction of the original diameter so as to mount the component on the shaft.