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what is cold working

Cold working (feature: no change in matrix structure)
Including the car (the lathe machining mainly uses a turning tool to turn the rotating workpiece.)
Milling (milling rotary motion is the main motion, the movement of the workpiece and milling cutter is the feed motion.)
Grinding (grinding the surface of the workpiece with abrasive tools)
Stamping (stamping is a method of forming a workpiece of a desired shape and size by applying an external force to a plate, a strip, a pipe, and a profile by means of a press and a die to cause plastic deformation or separation.)
Electroplating (pre-plated cations in the bath are deposited on the surface of the base metal to form a surface finish for the coating)

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