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Cold-Heading
Cold-Heading is the process of cold forming material by applying force to a metal blank with a punch and die. When the material’s yield strength is exceeded, it causes the material to flow taking on the shape of the die.
Compared to machining, Bigelow’s cold-forming process produces small precision metal parts such as rivets, electrodes, screw blanks, studs, and pins both better, faster, and cheaper. They are better because of the greater tensile strength and greater resistance to shock and fatigue. |
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They are cheaper because the production is faster (with less labor) and scrap is non-existent. Material is not removed as in machining, it is re-shaped.
Compared to other companies, Bigelow’s cold-heading department produces precision metal parts that are smaller and more precise.
It is this kind of precise craftsmanship that also enables Bigelow to produce extreme dimensional ratios a various head shapes (square, rectangular, octagonal, conical, diamond, and free-form). Bigelow’s multiple station equipment also means that the greater than normal head volumes and configurations can be produced.
Heading Capabilities
Bigelow Components has multi-die and progressive heading machines with capabilities of .015 to .475 and able to hold tolerances of +/-.001
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Coining and Stamping
As everyone knows, the key to coining and stamping is the company’s tool and die making capability. A well staffed tool room is a must. Our tool room at Bigelow is staffed with tool and die makers who have had years of experience in the making of coining, stamping, and forming dies from the most simple to the most complex.
Coining and Stamping Capabilities
Bigelow Components performs both coining and high speed stamping. We can stamp material from .002 to .250. |
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Automatic Secondary Operations
We can also perform automated secondary operations such as trimming, punching, threading, and grooving. |
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