To meet the growing demand for rapid, low-cost die fabrication technology in the sheet metal forming industry, easy-to-machine, polyurethane-based, composite board stock is widely used as a rapid tooling material. However, the failure mechanisms of the rapid prototyped tools are not clearly understood, thus making the prediction of tool life difficult. As a fundamental step for effective tool life estimation, the microstructure and the mechanical properties of the polymer composite tooling material were characterized. A finite element model of 90° V-die bending process was developed, and the effects of process parameters on stress distribution in punch and die were investigated through simulation. The simulation results were verified through experiments using instrumented, laboratory-scale punch and die sets.
Sheet Metal Forming Using Polymer Composite Rapid Prototype Tooling
Contributed by the Materials Division for publication in the JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY. Manuscript received by the Materials Division October 15, 2001; revision received July 2, 2002. Associate Editor: L. Catherine Brinson.
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Park, Y., and Colton, J. S. (July 10, 2003). "Sheet Metal Forming Using Polymer Composite Rapid Prototype Tooling ." ASME. J. Eng. Mater. Technol. July 2003; 125(3): 247–255. https://doi.org/10.1115/1.1543971
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