To crimp means to join or connect. The word crimping is most often used in metalworking, when one joins two pieces of metal together by deforming one or both of them to hold the other. This closure is meant to not open up back on its own; the deformed or crushed metal acts as the thing that holds the metal together. The crimp is the bend or deformity in the metal.
Crimping is most often accomplished by way of crimping pliers. Crimping pliers are another way to join metal without soldering the metal together. Wisegeek says this about crimping pliers:
“Crimping pliers come in a range of sizes to handle crimps of varying diameters. Some have a series of slots that allow users to select a slot of the appropriate size. For bigger crimps, the pliers tend to be heavier and of a more sturdy design to ensure that people will be able to exert enough pressure to make a solid crimp. For more delicate tasks, the pliers are lighter to avoid breaking or damaging the object being crimped.”
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