Extra long reamer for aerospace parts processing

Product Overview

Extended length reamers are specialized cutting tools designed for precision hole finishing in deep or hard-to-reach workpieces. These reamers feature an elongated shank and flute design, enabling accurate machining of holes with depth-to-diameter ratios exceeding 10:1. Manufactured from high-performance carbide or HSS materials, they maintain rigidity while achieving tight tolerances (IT6-IT8) and superior surface finishes (Ra 0.4-1.6μm).

Key Features

1. Extended Reach Design

   • Shank lengths up to 1,500mm available

   • Optimized flute geometry prevents deflection during deep-hole machining

2. High-Performance Materials

   • Solid carbide for maximum rigidity and wear resistance

   • Cobalt-enriched HSS for tough materials like stainless steel

3. Precision Engineering

   • Ground cutting edges ensure ±0.01mm diameter tolerance

   • Helical or straight flute configurations for material-specific performance

4. Specialized Coatings

   • TiAlN or AlCrN coatings for heat resistance in continuous operation

Technical Specifications

• Diameter Range: 3mm to 50mm

• Length Configurations: Standard (10xD), Extended (15-30xD), Custom (30xD+)

• Tolerance Grades: IT6 for precision fits, IT8 for general applications

• Surface Finish: Achieves Ra 0.4μm in most materials

Applications

• Aerospace: Fuel system components, hydraulic actuators

• Automotive: Transmission shafts, cylinder liners

• Energy: Turbine blade cooling holes, heat exchanger tubes

• Medical: Surgical instrument bores, implant guide holes

Performance Advantages

Superior Straightness
Precision-ground pilot sections guide the tool through deep holes, maintaining straightness within 0.02mm per 100mm length.

Reduced Vibration
Variable pitch flute designs minimize harmonic vibration during operation, extending tool life.

Efficient Chip Evacuation
Wide flute channels combined with high-pressure coolant ports prevent chip packing in deep holes.

Operating Recommendations

• Speed: 15-50 m/min (carbide), 5-20 m/min (HSS)

• Feed Rate: 0.02-0.2mm/rev based on material

• Coolant: Through-tool coolant delivery mandatory for depths >10xD

Quality Assurance

Each reamer undergoes:

• Dimensional verification with optical comparators

• Runout testing (<0.005mm TIR)

• Cutting tests for performance validation

Packaging Options

• Individual protective cases for precision tools

• VCI anti-corrosion packaging for long-term storage

• Custom labeling available for OEM requirements

Customization Services

• Non-standard diameters and lengths

• Special edge preparations (chamfers, radii)

• Material-specific geometries (e.g., aluminum-optimized helix angles)