Ultra‑Sharp Edge · Mirror Finish · Consistent Quality · Custom‑Made
CVD single‑crystal diamond tools are produced by chemical vapor deposition, resulting in a complete single‑crystal structure with no grain boundaries, no inclusions, and no internal defects. The cutting edge can be ground to a nanometer‑level sharpness, delivering mirror‑like surface finishes in ultra‑precision machining of high‑hardness non‑ferrous metals, optical materials, precision molds, and more.
Product Introduction
CVD single‑crystal diamond tools are manufactured using synthetic single‑crystal diamond grown by chemical vapor deposition. This overcomes the limitations of natural diamond, such as restricted size and inconsistent quality, while combining the extreme hardness of natural single crystal with the excellent uniformity of a synthetic material. Compared with polycrystalline diamond (PCD), CVD single‑crystal tools offer a sharper edge and superior wear resistance, making them particularly suitable for micro‑machining, high‑gloss finishing, and precision turning of difficult‑to‑cut materials.
Synthesis Process: Chemical Vapor Deposition (CVD)
Crystal Characteristics: Complete single‑crystal structure, no grain boundaries, no inclusions
Cutting Edge Quality: Achievable nanometer‑level sharpness
Application Range: Ultra‑precision machining, mirror finishing, micro‑cutting
Key Advantages
1. Ultra‑Sharp Edge, Light Cutting
The single‑crystal structure is free of internal defects, allowing the edge to be ground to nanometer‑level sharpness. This results in low cutting forces, minimal friction, cooler cutting, and extended tool life while improving workpiece surface quality.
2. Mirror Finish in a Single Pass
Combining high hardness with excellent thermal conductivity, the tool maintains edge stability at high cutting speeds. Mirror‑like surface finishes (Ra ≤ 0.02 μm) can be achieved with one operation, reducing or eliminating subsequent polishing steps.
3. Consistent Quality, Reliable Performance
The synthetic growth process ensures consistent quality from batch to batch, eliminating the uncertainties caused by variations in natural diamond (such as crystal orientation and impurities). This provides a dependable cutting solution for precision machining.
4. Extended Tool Life, Lower Overall Cost
With hardness approaching that of natural diamond, CVD single‑crystal tools outperform cemented carbide and PCD in wear resistance. A single edge can handle long production runs, reducing tool change frequency and overall machining cost.
Applications
Optics & Precision Molds
Optical lenses, mirrors, light guide plate molds
Precision injection molds, ultra‑precision components
High‑Silicon Aluminum Alloys
Automotive engine blocks, pistons
Electronic housings, heat sinks
Non‑Ferrous Metals
Copper alloys, oxygen‑free copper, beryllium copper
Precious metal parts, precision components
Composites & Ceramics
Customization Service
We offer full customization for CVD single‑crystal diamond tools, tailoring each tool to your workpiece material, machining process, and machine tool specifications.
Customizable Parameters:
Tool Geometry: Turning tools, milling cutters, engraving tools, non‑standard shapes
Rake & Relief Angles: Optimized for cutting forces and workpiece hardness
Mounting Type: Brazed, indexable, solid
Dimensions: Adapted to machine interface and available workspace
Chip Breaker Design: Customized for specific chip formation
Customization Process:
Discuss process requirements
Recommend tool solution
Confirm drawings
Manufacture & delivery
Application follow‑up & optimization
Company Strength / Service Commitment
Experienced Team: Over a decade of R&D in super‑hard material tools, specializing in CVD single‑crystal applications
Advanced Equipment: In‑house capabilities including precision laser cutting, lapping, polishing, and edge inspection
Quality Assurance: Every tool is inspected for geometric accuracy and cutting performance before delivery
Technical Support: Full‑process assistance from tool selection and trial cutting to process optimization
