Grooving is a process where a machine creates a groove on the surface of a metal sheet, facilitating subsequent bending operations. Typically, the shape of the groove is V-shaped, hence its English name “V-CUT”, and the depth of the groove does not exceed one-third of the thickness of the sheet.
During the bending process with the V-shaped upper and lower dies of a press brake, imperfect shapes may result due to collisions between the sheet and the dies. In such cases, grooving is employed as a solution.
Sheet metal that has undergone grooving can be easily bent to any desired angle, with less constraint from traditional press brake dies. Additionally, because grooving thins the sheet metal, smaller bending radii (R angles) can be achieved. However, due to the thinning of the sheet metal, the bending area may become more fragile compared to traditional bending methods using V-shaped dies.