Friction Saw Blades for Metal Cutting

1. Product Overview

Friction saw blades are specially designed for high-speed cutting of steel pipes, profiles, and sheets.
Unlike traditional cold-cut blades that rely purely on mechanical tooth cutting, friction saw blades use high rotational speed to generate frictional heat, softening the material at the cutting point and allowing rapid separation.
This technology enables extremely fast cutting speeds and is widely used in steel pipe mills, structural steel plants, hot and cold rolling lines, Dan metal fabrication industries.

2. Features & Advantages

Key Functions

• • High-Speed Cutting – The frictional heat generated at the contact point softens the metal, achieving rapid cutting without excessive tool wear.

• • Efficient for Tough Materials – Ideal for cutting structural steel, alloy steel, thick-wall pipes, and other difficult-to-cut materials.

• • Increased Productivity – Reduces cutting time per piece and improves throughput in continuous production lines.

• • Durable at High Temperature – Made of high-strength alloy steels with precise heat treatment, ensuring long blade life even under extreme conditions.

Keuntungan

• • Supports Very High Cutting Speeds: Peripheral speeds typically reach 100–140 m/s, suitable for large-diameter and high-power machines.

• • Large Diameter Range: From 350 mm up to 2500 mm (14″–100″) for heavy-duty industrial use.

• • Optimized Tooth Geometry: Negative rake angles and 5–7 mm tooth pitch provide smooth cutting and stability.

• • Cost-Effective: Longer life and higher cutting efficiency reduce downtime and overall cost per cut.

3. Performance Analysis

(1) Cutting Efficiency

• Recommended surface speed: 100–140 m/s.

• Operates best with rigid, high-power machines and stable feed control.

• Outperforms traditional cold saws when cutting thick-wall tubes or structural sections.

(2) Durability

• Manufactured from Cr-V steel (DIN 1.2235) atau W-Mo alloy steel (DIN 1.2604) for excellent heat and wear resistance.

• Tooth hardness: typically HRC 42–46.

• Proper matching of blade diameter, thickness, and tooth pitch ensures stable performance and minimizes cracking.

(3) Material Compatibility

• Excellent for carbon steel, alloy steel, structural profiles, and pipes.

• Not suitable for aluminum, copper, or cast iron due to lower frictional heating efficiency.

• Ideal for continuous production and hot cutting applications.

(4) Safety & Maintenance

• High-speed cutting generates sparks and intense heat — always use protective equipment and adequate ventilation.

• Avoid direct coolant during cutting; apply water cooling only after cutting to clean the surface.

• Inspect blade regularly for cracks, vibration, or tooth wear and regrind as necessary.

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4. Typical Specifications

5. Comparison: Cold Saw Blades vs. Friction Saw Blades

6. Selection Guidelines

• Diameter & Thickness: Choose according to the machine’s rated size and material cross-section.

• Cutting Speed: Always maintain ≥ 100 m/s surface speed; running too slow will damage the blade.

• Tooth Pitch: For thick-wall or large-section materials, use 5–7 mm pitch so that 4–8 teeth engage the cut simultaneously.

• Machine Rigidity: Stable feed and minimal vibration are essential to prevent cracking.

• Cooling Method: Do not apply coolant directly during cutting. Clean with high-pressure water only after cutting.

• Operator Safety: Ensure full protective gear and fire-safety measures during operation.

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7. Application Fields

• Steel pipe mills

• Structural steel cutting lines

• Hot- and cold-rolling mill cut-off sections

• Metal fabrication and heavy industry

• High-speed production lines requiring continuous heavy-duty cutting

8.Friction Saw Blades – FAQ

Q1: What is a friction saw blade?
A: A high-speed steel blade that cuts metal by generating frictional heat, softening the material for fast and smooth separation.

Q2: What materials can it cut?
A: Ideal for carbon steel, alloy steel, and structural steel — especially pipes and profiles. Not suitable for aluminum or copper.

Q3: What is the recommended cutting speed?
A: Around 100–140 m/s (approx. 3000–4000 rpm, depending on diameter).

Q4: What material is the blade made of?
A: Usually Cr-V steel (DIN 1.2235) atau W-Mo steel (DIN 1.2604) for high heat resistance and durability.

Q5: Why does it produce sparks?
A: Sparks come from the friction process — this is normal. Always use proper safety gear and ventilation.

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