What is V-Grooving?
V-grooving is a precise metal processing technique used to create sharp bends or folds by cutting a V-shaped groove along the bend line of a metal sheet. The groove reduces the material thickness at the bend point, allowing for a cleaner, sharper, and more accurate fold, especially on thicker or rigid materials.
Purpose of V-Grooving:
- Achieves tight internal bend radii that can’t be done with regular press brake bending.
- Enhances the aesthetic quality of architectural or decorative metalwork by producing crisp, sharp corners.
- Allows bending thick sheets without distortion or cracking.
- Reduces spring-back during bending, improving accuracy.
Common Applications:
- Architectural panels & facades (e.g., elevator panels, column covers)
- Furniture with sharp bends and modern finishes
- Signage and decorative trims
- Custom enclosures or casings for electronics
- Kitchen equipment, especially when using stainless steel
How It Works:
1. A V-shaped groove is cut into the back side of the metal sheet using a CNC V-grooving machine.
2. The depth is carefully controlled, leaving a thin layer (typically 0.3–0.8 mm) uncut.
3. The sheet is then bent along the groove using a press brake or manual bending.
4. The result is a sharply defined outside corner with a minimal bend radius.
Materials Suitable for V-Grooving:
- Stainless Steel (SS)
- Aluminum (AL)
- Mild Steel (MS)
- Galvanized iron (GI)
Benefits:
- High precision and clean edge appearance
- Allows for complex folding without welding
- Time-saving in post-processing (less grinding or polishing)
- Enhances the luxury/modern look of metal products