Bruce Konopinski is

Regional Sales Manager
Dayton Progress Corp.
500 Progress Road
Dayton, OH 45449

Optimal tooling approaches for punching AHSS

March 3, 2014

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The tried-and-true approaches that worked well to stamp first-generation steels are not as effective for stamping advanced high-strength steels (AHSS). Tests were conducted to determine optimal punch-to-die clearances, shear angles, and punch angles. Test results indicated that 12 to 15 percent punch-to-die clearances and -15- to +15-degree shear angles provided the longest punch and die life, and a 7-degree conical shear angle created the smallest burr growth.

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