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process known as "bending parts." Metal materials are fundamentally deformed through an elastic-plastic reaction when bent. The workpiece will exhibit directional elastic recovery deformation after unloading, often known as springback. The precision of the workpiece is affected by springback, which is a crucial technology to take into account when bending.
Stamping parts are formed by applying external force to plates, strips, pipes and profiles by presses and molds to cause plastic deformation or separation to obtain workpieces (stamping parts) of required shape and size. Stamping and forging belong to plastic processing (or pressure processing) and are collectively called forging. The blanks for stamping are mainly hot-rolled and cold-rolled steel sheets and strips.