Single Crystal Diamond Tools for Infrared Lens Substrates

Optimized for germanium (Ge), silicon (Si), zinc selenide (ZnSe), and chalcogenide glass, Single Crystal Diamond Tools deliver ultra-precision machining for infrared optics, ensuring minimal micro-chipping, subsurface damage, and mirror-quality surfaces.

Specification & Material-Specific Advantages

1. Optimized Geometry for Infrared Materials

• ·  Rake Angle: -25° for brittle IR crystals

• ·  Tool Nose Radius: R0.1–2.0 mm (precision tolerance ±0.02 mm)

• ·  Benefit: Reduces micro-chipping and prevents subsurface defects in delicate optical crystals

2. Superior Surface Finishing Capability

• ·  Mirror-Grade Results: Defect-free cutting edges, achieving Ra ≤ 0.01 μm

• ·  Impact on IR Applications: Minimizes or eliminates post-polishing for lenses, windows, and sensors

3. Non-Ferrous Metal Machining Precision

• ·  Rake Angle: 0° for aluminum, copper, and other non-ferrous IR components

• ·  Tool Nose Radius: R0.1–1.5 mm

• ·  Application Example: High-accuracy machining of cooling housings, mounts, and structural components

Technical Superiority: Why Our Monocrystalline Tools Excel

• ·  Extreme Hardness (90–100 GPa): Industry-leading wear resistance; lifespan 5–8× longer than PCD tools when machining Si/Ge

• ·  Zero Edge Defects: Atomic-level edge integrity eliminates surface striations on infrared optics

• ·  Anti-Adhesion Surface: Low chemical affinity with IR materials prevents built-up edge (BUE) and material transfer

• ·  Nanometric Edge Stability: Maintains sharpness under high-temperature cutting — critical for low-melting-point ZnSe

General Tool Parameters

• ·  Edge Radius: R0.1–R10.0 mm (laser-confirmed tolerance ±0.02 mm)

• ·  Rake Angle: -45° to 0° (material-specific optimization)

• ·  Clearance Angle: 10°–15° (prevents workpiece rubbing)

• ·  Included Angle: 30°–60° (balance of strength vs. penetration)

• ·  Arc Radius Capability: Up to R200 mm

• ·  Waviness: 0.02–1 μm (material/geometry-dependent)

• ·  Surface Roughness: Front/rear faces Ra ≤ 2 nm

These tools are fully compatible with ultra-precision SPDT lathes and can be customized with conical or cylindrical flanks, solid shank or insert systems, and natural or synthetic single-crystal diamonds, ensuring optimal performance for every infrared lens machining application.