Patent ID: 6125537
Filing Date: 2000-10-03
Classification: B21D,B21K,Y10T

Abstract:
Process for providing a torsionally resistant connection of at least one component arranged on a hollow shaft to the shaft, wherein the component is threaded onto the shaft with mating play and is held in a specific position thereon, further wherein the shaft is expanded by a drift moved through the hollow shaft, the drift being larger in diameter than a width of the shaft, until a desired holding force for the component on the shaft is achieved, the process comprising:determining in at least one trial run on at least one sample workpiece the amount of force that must be used for moving the drift through a region of the shaft provided with the component in order to achieve a holding force of the component on the shaft subsequently checked on the sample workpiece,storing the determined force and an assigned a region along the shaft thereto,monitoring in subsequent production runs, whether the stored force is at least reached in the region assigned thereto, andemitting an error signal if the stored force does not match the assigned region.