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 Deep Drawing Test

Deep Drawing Test

The Deep Drawing Cup Test is a method of testing sheet metal by which a circular plate (blank) is stamped from a strip of sheet metal and then formed into a cup using a drawing die and a drawing punch. The greatest possible ratio between the blank and the drawing punch diameter, which just permits the faultless production of a cup, is called the Limiting Drawing Ratio »ßmax « and is a quality attribute for the forming abilities of the sheet metal material. The ears, which form as a result of the flow properties of the material are undesirable because they necessitate rework on drawn parts when they occur in practice. Here again, it is possible to determine the best suited sheet material for the intended forming process by means of the deep-drawing cup test.






Deep Drawing Test

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