Correct option is D
Slitting is the operation used to
cut sheet metal straight in length. It is a shearing process where the sheet metal is cut into
narrow strips or
smaller widths using rotary cutters or slitting blades. Slitting is commonly used in industries to produce sheets of specific widths and to prepare metal sheets for further operations like stamping, forming, or bending.
Rotary Slitter: Utilizes rotating knives to cut the sheet as it passes through the machine.
Shearing Machines: May also be used for simple straight-line cuts.
Notching is a shearing operation where
pieces are removed from the edges or corners of sheet metal. It is used to create shapes or prepare the metal for further forming but does not involve cutting sheet metal straight in length.
