I. Main Types and Applications

1. Guillotine Blades (Paper Cutting Blades)

• Applications: Cutting paper, cardboard, films, and similar materials.

• Features: Sharp edges with high flatness; used in guillotine cutters or flatbed die-cutting machines.

• Subtypes: Straight-edge blades, serrated-edge blades (reduces cutting resistance).

2. Die-Cutting Blades

• Applications: Precision cutting of complex shapes for packaging boxes, labels, stickers, etc.

• Features: High-hardness steel, customizable edge shapes (e.g., rounded or sharp corners); paired with die-cutting plates.

3. Slitting Blades (Circular Blades)

• Applications: Slitting wide rolls into narrow strips (e.g., films, aluminum foil, non-woven fabrics).

• Features: Circular design for high-speed stability; commonly used in slitting machines.

4. Doctor Blades

• Applications: Scraping excess ink from gravure rollers in printing presses.

• Features: Thin, flexible, and wear-resistant; require regular replacement for print clarity.

5. Laser Engraving Blades

• Applications: High-precision engraving or cutting of specialty materials (e.g., anti-counterfeit labels, electronic components).

• Features: Laser-integrated technology for micro-scale patterns.

II. Core Materials and Manufacturing

1. Common Materials

• High-Carbon Steel: High hardness for general-purpose cutting.

• Alloy Tool Steel (e.g., D2 M2 M42): Balances wear resistance and toughness; widely used for die-cutting.

• Tungsten Carbide (Hard Alloy): Ultra-hard, long-lasting; ideal for dense materials.

• Ceramic-Coated Blades: Reduced friction and extended lifespan.

2. Key Processes

• Heat Treatment: Quenching and tempering to enhance hardness and toughness.

• Precision Grinding: CNC grinding ensures edge straightness and angle accuracy (e.g., 30°, 45° edge angles).

• Surface Treatments: Chrome plating, TiN (Titanium Nitride) coating for corrosion and wear resistance.

III. Key Industries

1. Printing: Book trimming, label die-cutting.

2. Packaging: Carton forming, flexible packaging slitting.

3. Electronics: Precision cutting of thin films and flexible circuits.

4. Textiles: Non-woven fabric and textile roll slitting.

IV. Selection and Maintenance Tips

1. Selection Criteria

• Machine Compatibility: Match blade dimensions (e.g., diameter, bore size) to equipment.

• Material Suitability: Choose hardness/coatings based on substrate (e.g., anti-stick coatings for plastics).

• Brand & Certification: Opt for reputable brands (e.g., Böhler, SKD) and ISO-certified products.

2. Maintenance

• Regular Sharpening: Use blade grinders to restore edges and avoid burrs.

• Rust Prevention: Apply anti-corrosion oil during storage.

• Installation Checks: Ensure secure mounting to prevent misalignment or vibration.

V. Common Issues & Solutions

• Issue 1: Short Blade Life
  → Causes: Material mismatch or improper heat treatment.
  → Solutions: Upgrade to coated blades or carbide materials.

• Issue 2: Rough Cutting Edges
  → Causes: Worn edges or incorrect installation angle.
  → Solutions: Re-sharpen blades and recalibrate angles.

• Issue 3: Chipped Edges
  → Causes: Overloading or hard contaminants in materials.
  → Solutions: Reduce cutting pressure; pre-screen materials.

VI. Future Trends

• Smart Integration: Sensors for real-time wear monitoring.

• Sustainability: Recyclable materials and low-energy coatings.

• Ultra-Precision: Nanoscale cutting for ultra-thin materials (e.g., lithium battery separators).

Proper blade selection and maintenance significantly boost productivity and reduce costs. For customized solutions,consult specialized PLMK based on your operational needs.