Optimising the Double-Sided Simultaneous Shot Peen Forming

Author:  Kopp, Schulz
Source:  Conf Proc: ICSP-8 Sept. 16-20, 2002 Garmisch-Partenkirchen, Germany
Doc ID:  2002031
Year of Publication:  2002
Abstract:  
Authors Reiner Kopp, Jorgen Schulz, Institute of Metal Forming, University of Technology Aachen, Aachen, Germany Introduction Shot peen forming is a flexible pressure forming procedure. According to the velocity and mass of the balls striking the components we can induce convex as well as concave curvatures. Hitherto, it has been solely usual to bring both methods of curvature generation to bear one after the other on both sides of a particular component. This study describes the new technology of double-sided shot peen forming. The manufacturing of three-dimensional structural parts may serve as an example of how to identify the mechanisms which come into play during this double-peen technology in order to optimise the process as to both effectiveness and reproducibility. Beside the experimental series of tests, the simulation of shot peen forming, which due to the many difficulties arising from the basic principle is still in its infancy, is being further developed, so that in future we will be able to apply this kind of simulation to rapid advance planning of the process strategy.