42crmo steel Brake Tooling

Press Brake Tooling

• Mechanical manufacturing

• Sheet metal fabrication

• Hardware production

• Cabinet manufacturing

Why 42CrMo Steel is Best for High-Performance Brake Tooling

The Science of 42CrMo: Tough and Hard

• Deep Hardening (HRC 47–52): Unlike surface-hardened tools, our 42CrMo tooling is hardened all the way through. This stops the tool from collapsing under high hydraulic pressure.

• Fatigue Resistance: 42CrMo resists repeated stress from CNC bending, so our punches and dies keep their R-angle accuracy longer than standard tools.

Precision Grinding for Modern Fabrication

• Perfect Parallelism: Important for multi-step bending where every part must line up correctly.

• Less Friction: Our smooth finish prevents material sticking, which is key when working with sensitive materials like stainless steel.

Factory-Direct 42CrMo Spares for Long Life

Core Components & How They Work

Upper Die

Lower Die

Working Principle

• Place the metal sheet on the lower die.

• The slider moves the upper die down to press the sheet.

• The sheet bends to match the shape of the two dies (permanent deformation).

• Once the set stroke and pressure are reached, bending is done.

• The upper die moves back, and you can take out the workpiece.

Key Features of Press Brake Tooling

High Rigidity and Wear Resistance

• Hardness (usually HRC45–HRC50; up to HRC47–52 for premium tools)

• Ability to handle heavy loads

• Resistance to wear from bending pressure and friction

Customizable Molds

• Punches: Custom shapes (arc, gooseneck, irregular)

• Dies: V-grooves of different widths (8mm, 16mm, 24mm) or special grooves

Good Matching with Equipment and Workpieces

• Mold specs (height, shank type, installation size) must fit the bending machine’s clamping system, slider stroke, and rated tonnage.

• Forming sizes must match workpiece drawings to ensure accuracy and pass rate.

Standardized and Serialized

• Standard molds fit common bending machine brands (Amada, Trumpf, Wila) and can be used right away.

• Special molds can be customized for your specific needs.

Common Types of Press Brake Tooling

By Forming Shape

• Standard Straight Edge Molds: For regular straight bending (most commonly used).

• Sharp Angle Molds: For small-angle bending or springback adjustment (high-precision sharp angles).

• Gooseneck Molds (Bending Knife): For U-shaped and deep-channel workpieces (avoids bending interference).

• Arc Molds: For bending arcs and rounded corners (e.g., curved workpieces).

• Irregular Shaped Molds: Custom-made for special workpiece drawings (irregular bending needs).

By Application

• Standard Sheet Metal Bending Dies: For common sheet metals (low-carbon steel, galvanized steel) – cost-effective.

• High-Strength Steel Bending Dies: Thickened and high-hardness – for hard-to-bend materials (stainless steel, high-strength alloy plates).

• Thin Material Specific Dies: Precision-machined – prevents warping, deformation, and scratches on thin materials.

By Installation Interface

• Amada/Promecam Type: Fits Amada series bending machines.

• Trumpf/Wila Type: Fits Trumpf and Wila series bending machines.

• New Standard Type: Universal – fits most domestic bending machines.

How to Choose Press Brake Tooling

1. Match Material Characteristics

• Mild steel: Little springback – use an 86°–88° punch for 90° bending.

• Stainless steel/high-strength steel: More springback – use an 85° punch or adjust the angle.

2. Follow the "8x Principle" for Lower Die V-Groove Width

• Thin plates (T＜3mm): V = 6T (smaller fillet radius).

• Thick plates (T＞8mm): V = 10T–12T (reduces pressure, prevents cracking).

3. Check Pressure Tonnage Limits

• Calculate bending tonnage based on material thickness, tensile strength, and V-groove width.

• Leave a 10%–15% safety margin (don’t overload the tooling).

• For thick/high-strength materials: Use thickened or segmented dies to spread pressure.

4. Choose the Right Punch Shape

• Standard punches: Regular bending.

• Sharp-angle punches: Small angles and springback control.

• Gooseneck punches: U-channels and deep profiles.

• Arc/irregular punches: Curved or special shapes (custom if needed).

5. Ensure Equipment Compatibility

• Check that the shank type (Amada, Trumpf/Wila, New Standard) fits the bending machine’s clamping system.

• Mold height must match the slider stroke and workbench opening (prevents bending issues and slow loading/unloading).

Important Tips for Selection

• Don’t ignore material springback – it causes inaccurate bending angles.

• Follow the 8x rule – it prevents workpiece cracking and mold damage.

• Check equipment compatibility – it avoids installation failures.