Cold Forming
Cold forming is a process by which small, simple parts are produced. Unlike traditional metalworking processes, cold forming does not use heat. Instead, high pressure is applied to the metal blank in order to shape it. To be effective, this force must exceed the material's elastic limit. Because the process does not cut away material in order to form the metal part, cold forming is an efficient process that results in a minimum amount of waste product.
Cold headed fasteners have been formed by a similar process for over a century.
During the cold forming process, a gripping die holds the cylindrical metal blank while an indented punch is used to form the metal into the desired shape. Today's cold formed parts are manufactured by automated equipment that can quickly produce parts that are consistent in shape.
Cold forming is not practical for the manufacture of complex parts, but it is an economical solution for producing simple parts like metal fasteners. The cold heading process is used to make the heads on cylindrical parts, like screws and bolts. These parts are called fasteners because they are used to secure two components together.
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Cold Forming Image Provided
by Stalcop
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