A process in which material is folded back on itself or over a mating part. This is a multistage forming operation. First, a sharp-angle bend is made ; next, the bend is closed using a flat punch and a die. See teardrop hem, rope hem, and open hem.
From the Web: Bicycle of the future; chocolate + welding; fabricator’s creative boom; and jobs - by Vicki Bell Highlights for fabricators from the past week’s Web articles— Handlebars become a lock; an unlikely twosome—chocolate and welding; fabricator gets creative; who’s hiring, maybe; and small business’s thoughts on hiring.
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