Power Spinning of Metallic Materials for Producing Axisymmetric Hollow Parts and Structures

Power spinning has been widely applied to manufacture axisymmetric hollow components for its advantages of low forming force, high forming accuracy and effective material utilization. Different from the conventional spinning, the most prominent feature of power spinning is that the wall thickness of blank is deliberately reduced. Generally, the power spinning can be classified into three typical types: viz., shear spinning, flow forming and splitting forming, which are usually used to make conical parts, tube parts and the entire wheels, respectively. The main advantage of power spinning is high process flexible and improved mechanical properties, while the forming feature is very complex and the process design is difficult. In this article, the detailed process principle, realization, capability, application, and the quality of formed parts are described.