What is the basic working principles of V grooving process

The basic principles of the metal sheet grooving process are as follows:
A)  The metal sheet metal is fixed, and the V-groover blade mechanically cuts the metal material on the movement track to form a V-groove.
B)  The size of the bending angle is related to the depth of the V-groove.
C)  The smaller the bending angle, the greater the value of the V-groove depth that needs to be grooved.