Sheet Metal Forming - Massachusetts Institute of
2015-9-28u2002·u2002Stamping Auto body panels •3 to 5 dies each • Prototype dies ~ $50,000 ... Technology – a brief review Forming Speed 20-1000pts/hr 7-13cycles/hr 3-8pts/hr ... • 'coining' or bottoming the punch . Pure Bending Bending & Stretching σ h -Y Fully plastic σ h Y Fully plastic Y Y
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