Test for sheet-metal formability with coupon and circular specimens
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Formability in sheet metal is defined as the locus of the limiting strain. The initiation of localized thinning, which manifests itself as a groove, is taken as the criterion of failure. The deformation of circular and coupon specimens is discussed with particular reference to the effect of the process parameters on the strain ratios at the critical section. Curves are presented for the formability of aluminum sheets with failure in both the direction of rolling and that perpendicular to it.
KeywordsAluminum Mechanical Engineer Fluid Dynamics Sheet Metal Aluminum Sheet
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