Joining of a Shaft-Hub Connection by Lateral Extrusion

The joining of a shaft-hub connection by lateral extrusion allows savings in energy costs, reduced investments as well as economizing logistical efforts and makes tolerances between both parts less important compared with a conventional joining process. The key challenges of such new process management methods are the prior layout of optimal friction conditions and of internal hub profile parameters during the manufacturing process on the one hand and the usage requirements on the other hand. If a non-cylindrical internal hub profile is used for producing a shaft-hub connection by lateral extrusion, a combination of positive and non-positive connection types occurs. Such a connection type shows significantly higher amount of torque transmission capability compared to a conventional shaft-hub-connection [1].