Measuring method for determining the biaxial shaping behavior of metallic materials, more particularly sheet metal
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United States of America Patent
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May 20, 2003
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N/A
app pub date -
Jan 4, 1999
filing date -
Jun 29, 1996
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Expired
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Abstract
The invention relates to a method of measuring the biaxial shaping behaviour of metal materials, more particularly sheet metal. In the measuring method a flow locus curve comprehensively describing the shaping behaviour of the material is determined by determining the flow limits under tensile and compressive loading of secondary samples of a primary sample previously subjected to at least tensile, but preferably also to compressive loading. Preferably a number of flow locus curves of different preliminary loading of the primary sample are determined for each material. These flow locus curves, completely ascertained by tests, provide the further processor with a reliable ancillary means of selecting a material required for the particular shaping operation.
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