Seijiro Oshima

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

The importance of the contact angle in deep drawing

February 25, 2011

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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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