Seijiro Oshima

APT Giken
3052-1 Moto-oshima
Matsukawa, Shimoina, Nagano 399-3303
contact angle in deep drawing

The importance of the contact angle in deep drawing

February 25, 2011


In deep drawing, if the contact angle between drawing stages is too large, cracks can appear and swelling can occur, resulting in scoring, curving, and imbalanced flange-lip roundness. Keeping the contact angle between 15 and 45 degrees is key to quality drawn parts.

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