Erichsen Cupping Testing Machine

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The Erichsen Cupping Tester is a device used in material testing to determine the formability and ductility of sheet metals. It is named after its inventor, E. Erichsen. The test involves placing a circular sheet metal specimen over a hemispherical punch and applying a gradually increasing force until the material either fractures or undergoes significant deformation. The depth of the cup formed in the specimen is measured, which indicates its ability to undergo deformation without failure. This test is commonly used in industries like automotive, aerospace, and manufacturing to evaluate the suitability of materials for specific applications, particularly where forming operations are involved.