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Cold heading is defined as a metal forging process used for rapidly producing enlarged (upset) sections on a piece of rod or wire held in a die. The resulting shape of the upset portion conforms to the shape of the die cavity. Workpieces are not heated prior to heading. Upsetting may be done in one or more strokes. Applications include fasteners (bolts, threaded components, rivets and pins) and valves.
Process Characteristics:
- Upset portion conforms to shape of the punch and/or die cavity
- Finished workpieces have improved grain structure and mechanical properties
- Finished surfaces are smooth with uniform accuracy
- May process ferrous and nonferrous metals
Fastener Cost Savings
contributed by Arnold Industries, Inc.
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