Heading Or Upset Forging - Manufacturing Process
2018-6-26 · could use approximately 1” of the 5” blank to upset into a fastener head. Most single blow heading, however, is within the 1 to 1-1/4 diameter range. With a two-blow heading sequence, up to 4-1/2 diameters can be upset. At the moment of contact between the punch and blank, the part of the blank to be upset extends out of the die unsupported.
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