High-Performance SL-Shaped Carbide Rotary Burrs for Aluminium Cutting

Precision Engineered for Superior Aluminium Machining

Our SL-shaped carbide rotary burrs feature a specialized spherical long neck design, combining the reach of extended shank tools with the precision of ball-nose cutters. These burrs are engineered specifically for deep cavity machining, 3D contouring, and hard-to-reach areas in aluminium components.

Key Product Advantages:

* Extended Reach Design - Long neck profile enables deep pocket machining (up to 5:1 L/D ratio)
* Anti-Galling Geometry - Proprietary flute pattern prevents aluminium adhesion
* Premium Materials - K50 micro-grain carbide with 42CrMoV alloy steel shank
* Automated Silver Brazing - Computer-controlled process ensures 100% joint integrity
* Aerospace-Grade Precision - Ground to tolerances of ±0.003mm for vibration-free operation

Technical Specifications & Materials

1. Cutting Head Composition

• Carbide Grade: K50 (94% WC, 6% Co)

• Hardness: HRA 93.5±0.3

• Grain Size: 0.3-0.5μm ultra-fine grain structure

• Brazing Technology: Fully automated silver brazing (56% Ag content)

2. Shank Specifications

• Material: 42CrMoV chrome-moly-vanadium alloy steel

• Heat Treatment: Vacuum hardened to HRC 60-62

• Runout: <0.002mm (DIN 8032 Class AA standard)

Advanced Manufacturing Process

1. Material Preparation

   • Laser-verified carbide blanks from German/Japanese suppliers

   • Spectrometer-tested steel shanks with material certificates

2. Precision Machining

   • 6-axis CNC grinding with diamond wheel technology

   • Automated optical inspection after each grinding stage

3. Silver Brazing Process

   • Robotic silver brazing at 720°C in controlled atmosphere

   • X-ray inspection of every brazed joint

4. Final Finishing

   • Electrolytic polishing for ultra-smooth surface (Ra<0.2μm)

   • Dynamic balancing to ISO 1940-1 G1.6 standard

Complete Product Line (SL Series)

*(Custom configurations available with MOQ 50pcs - ask about our rapid prototyping service)*

Expert Application Guide

Optimal Cutting Parameters

• Speed: 20,000-35,000 RPM (based on diameter)

• Feed Rate: 0.04-0.12mm/tooth

• Cooling: Air blast mandatory for L/D >3:1

Why Global Manufacturers Choose Us

* 15 Years Specialization in deep-reach carbide tools
* Fully Automated Production with Industry 4.0 standards
* 100% X-ray Brazing Inspection for maximum reliability
* 48-Hour Sample Service with full test reports
* Onsite Technical Support available in EU/NA

Global Logistics Network

• Certifications: CE, RoHS, REACH compliant

• Export Packing: Climate-controlled for overseas shipping

• Lead Time: 7-15 days for standard orders

Ready to Revolutionize Your Deep Cavity Machining?

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