Richard Gedney





Measuring the plastic strain ratio of sheet metals

June 13, 2006

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Determining how much a metal can deform before thinning or fracture occurs is necessary for designing a reproducible forming operation. Testing the incoming sheet material is also essential because material properties may vary from coil to coil and affect the part quality and scrap rate. Understanding a material's plastic strain ratio and how to measure it are crucial in accurately establishing a material's formability.

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