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In deep drawing process the following defects may occur: 1. Wrinkles - caused due to excessive clearance between the punch and die. also caused due to improper pressure pad pressure and die and punch radii, 2. Ruptures - caused by incorrect draw ratio another reason is improper die and punch radii, 3. Excess thinning of the cup wall - caused by incorrect die and punch clearance and radii and also excessive pressure by pressure pad. These are the most typical defects. Hope the above helps.... Keshav Udipi

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16y ago

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