In todays session will learn about Metal forming processes like bending, drawing, Slitting, trimming, shaving operation. here Bending Operation is used to bend sheet metal, or rods, or pipes in desired shapes. where in dawing operation sheet metal blank is position over a die cavity and then punch push the metal into opening forming convex or concave shapes. here Bending and drawing are methods of shaping component parts mainly through plastic deformation of material. here Slitting is a sheet metal cutting process with circular knives, which is used to split wide coiled sheet metal into narrower widths or for edge trimming of rolled sheet. here slitter knives are mounted on two arbors together with spacers. The spacers determine the width of cut. here Trimming is a metal cutting process of Punching away excess material from the perimeter of a part as shown in fig. where Shaving is a secondary metal cutting process that can be used to improve edges of cuts that have already been made. Shaving uses very little clearance to perform straight, smooth, accurate cut to only the end of edge. Shaving is a chip removal type process and should not be used to cut large amounts of material.
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