Chiseling is a blanking or punching process using a chiseling die with a sharp edge. There is no die under the chiseling. The pad under the material is only a flat plate, and most of the material to be punched is non-metal.
Deep hole punching
Deep hole punching is a punching process in which the hole diameter is equal to or smaller than the thickness of the material to be punched.
Blanking is a stamping process that separates the material along a closed contour. The separated material becomes a workpiece or process piece, most of which is planar.
The necking is a stamping process in which the hollow member or the tubular member is pressurized to be reduced.