Press Brake V Die

Press Brake V Die Wear-resistant

Why ALAS V Dies Improve Bending Accuracy

Strong Material: 42CrMo Steel

• ALAS V dies use high-quality 42CrMo alloy steel.

• They are heat-treated and precision-ground for extra strength.

• Hardened to resist wear and stay stable under high pressure.

• Hardness: HRC 45–50, so they do not break or deform easily.

• Keeps V-groove shape accurate for long-term use.

Works for Many Bending Jobs

• We offer custom V dies for different material thicknesses and machines.

• CNC-ground to tight tolerances.

• Compatible with European, American, and New Standard clamping systems.

• Available in single-V and multi-V styles.

• Works for thin sheet metal and heavy plate.

• Reduces cracking and makes bending smoother.

How Press Brake Dies Work

Upper Die

• Mounted on the moving slider.

• Applies downward pressure.

• Shape decides the outside of the bent part.

Lower Die (V Die)

• Fixed on the machine table.

• Has a V-shaped groove.

• V-width affects bending force, radius, and finish.

Working Principle

1. Place sheet metal on the lower die.

2. Upper die moves down and presses the sheet.

3. Metal bends permanently to match the dies.

4. Upper die returns; workpiece is removed.

Features of Press Brake Dies

• Strong and wear-resistant

  Made of hardened alloy steel to handle high pressure and friction.

• Customizable

  Punches and V-grooves can be made in different shapes and sizes.

• Fits your machine

  Matches your press brake’s clamping, stroke, and tonnage.

• Standard and custom options

  Standard dies fit most machines; special dies can be ordered.

Types of Press Brake Dies

By Shape

• Standard straight-edge: For general bending.

• Sharp-angle: For small angles and springback control.

• Gooseneck: For U-shaped and deep parts (avoids interference).

• Arc: For rounded bends.

• Irregular: Custom-made for special parts.

By Use

• Standard dies: For mild steel, galvanized steel.

• High-strength dies: For stainless steel and tough materials.

• Thin-material dies: Prevents marks and warping on thin sheets.

How to Choose the Right V Die

1. Match the material

• Different metals bend and spring back differently.

• Steel needs less compensation; stainless steel needs more.

• Thickness affects die choice and bending results.

2. Follow the 8x rule

• V-groove width = 8 × material thickness.

• Thin material: use 6× thickness.

• Thick material: use 10× to 12× thickness.

• Prevents cracking and die damage.

3. Do not overload tonnage

• Calculate required bending force.

• Stay below the die’s maximum load.

• Keep a 10–15% safety margin.

• Use thick or segmented dies for heavy material.

4. Choose the right punch shape

• Standard punch: general use.

• Sharp-angle: small bends.

• Gooseneck: deep channels.

• Arc or custom: special shapes.

5. Check machine compatibility

• Make sure the die fits your clamping system.

• Die height must match machine stroke.

• Ensure easy installation and accurate positioning.

Important Tips

• Always consider material springback.

• Follow the 8x rule for V-groove width.

• Make sure the die fits your machine.

• Avoid overloading to prevent breakage.

42CrMo International Standard Comparison Table (Essential for Selection)

Press Brake V Die: Frequently Asked Questions

1. How to select the right V-opening width for material?

• Standard air bending rule: V = 8T (V = opening width, T = material thickness).

• Stainless steel: Use V = 10T to compensate for greater springback.

• Plate over 12mm thick: Use V = 12T to lower press tonnage demand.

2. Single-V Die vs Multi-V Die – what’s the difference?

• Single-V Die: For high-precision CNC bending, matched to specific material thicknesses.

• Multi-V / 4-Way Die: Multiple V openings on one block; ideal for mixed sheet metal gauges, no frequent tool changes needed.

3. What material are your V-dies made of?

4. How to prevent wear on V-die shoulders?

5. Can V-dies reduce marks on stainless steel & aluminum?

• Precision ground V-dies with large shoulder radii cut down friction marks.

• Optional urethane inserts and bending tape available for mark-free bending on sensitive metals.

6. Do your V-dies fit my existing press brake?

7. What’s the maximum tonnage the V-die can withstand?

8. How to maintain V-dies for longer service life?

• Keep V openings clean from oxide scale and debris.

• Regularly check shoulder trenching and wear.

• Professional re-grinding service is available to restore original die geometry and precision.

Press Brake v die drawing

Engineering Support for Bespoke V-Dies.

For complex bending requirements, standard dies aren't always enough. We support Bespoke Tooling Development. If your drawing is incomplete, our team can assist in optimizing the V-opening angle and shoulder radius to prevent material marking and ensure bending accuracy. Submit your technical requirements today for a professional review.