February 25, 2011
By: Seijiro Oshima
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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From the Web: Luring a $100 million facility; R2D2; fab lab; and metals make American manufacturing - by Vicki Bell
Web articles for fabricators—Ohio community hoping to land metal fabricating plant; fabricated R2D2 rolls into Comic Con; FMA, Harper College collaborate on fab lab; Pittsburgh (and 11 other U.S. cities) poised for manufacturing growth; and 3-D printing and the Cardinals
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