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Ultra-precision Single Crystal Diamond Cutting Tools

Moresuperhard's Single Crystal Diamond Cutting Tools are specially engineered for ultra-precision machining of non-ferrous metals (such as aluminum, copper, and magnesium), optical glass, infrared crystals (like ZnSe, Ge, and CaF₂), semiconductor materials (including silicon and gallium arsenide), and advanced ceramics. These tools deliver outstanding surface finishes and dimensional accuracy when working with hard, brittle, and highly delicate materials, making them ideal for applications in optics, electronics, aerospace, and medical device manufacturing.
Cutting Edge natural diamond,cvd diamond,mcd diamond
Tool Body Carbide or Steel
Processing Materials Aluminum alloy, copper, nickel, silicon, germanium and other brittle and hard materials
R angle R0.1mm-R10mm customized
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CVD diamond turning tools 2
single crystal diamond cutting tools
SCD diamond tools
cvd diamond cutting tool
applications of single crystal diamond tools
CVD diamond turning tools 2
single crystal diamond cutting tools
SCD diamond tools
cvd diamond cutting tool
applications of single crystal diamond tools
Single Crystal Diamond Cutting Tools
Single Crystal Diamond Cutting Tools for Silicon

Features of Moresuperhard SCD Tools

At Moresuperhard, our single crystal diamond (SCD) cutting tools deliver exceptional performance in ultra-precision machining applications. With advanced manufacturing processes and strict quality control, our tools offer the following key advantages:

1.Excellent Surface Finish
Moresuperhard SCD tools produce superior surface quality with ultra-low roughness. The sharp cutting edge and high material purity ensure mirror-like finishes, ideal for optical components, precision lenses, and high-end molds.

2.Long Tool Life
Our single crystal diamond tools are engineered for outstanding wear resistance. Even under continuous machining of hard and brittle materials—such as ceramics, sapphire, glass, and silicon—Moresuperhard tools maintain their cutting performance for extended periods, significantly reducing tool change frequency and production downtime.

3.High Dimensional Accuracy
With minimal wear and excellent edge retention, our SCD tools enable precise control over dimensional tolerances. This ensures high stability in complex and demanding precision manufacturing processes.

4.Efficient Cutting Performance
Moresuperhard SCD tools offer low cutting resistance and excellent heat dissipation, reducing thermal damage to workpieces. They are ideal for micro-cutting and ultra-precision finishing, minimizing sub-surface damage and improving product integrity.

5.Wide Range of Applications
Suitable for machining non-ferrous metals, high-hardness ceramics, semiconductor substrates, and advanced composites, our SCD tools meet the diverse needs of industries such as optics, electronics, aerospace, and medical devices.

CVD diamond turning tools 2cutting tools precision

Applications of Single Crystal Diamond Cutting Tools

Ultra-precision single crystal diamond arc turning tool is an ultra-precision machining tool, mainly used for machining non-ferrous metals and non-metallic hard and brittle materials, such as nickel, copper, aluminum and other non-ferrous metal materials, as well as germanium wafers, chalcogenide optical glass, silicon wafers and other crystal materials.

Ultra-precision single crystal diamond arc turning tools are widely used in the processing of various infrared lenses, concave and convex lenses, dry diffraction lenses, Fresnel lenses, optical camera lenses, mobile phone camera lenses, sensors and digital devices.

cvd diamond cutting tool

Specifications of Moresuperhard SCD Tools

Item Specification
Tool Type Ultra-Precision Diamond Turning Tool (Arc Tool)
Diamond Type Natural Diamond
Synthetic Diamond
Minimum Radius 0.001 mm
Maximum Radius 10.0 mm
Effective Working Angle 15° – 160°
Included Angle 20° – 160°
Rake Angle -45° – +25°
Relief Angle 0° – 20°
Surface Roughness (Waviness) 2.0 μm – 30 nm
Tool Holder Type Solid Shank
Insert Type
Shank Material Tungsten (W)
Steel
Molybdenum (Mo)
Shank Shape Square or Rectangular
Round
Custom Shapes
Considerations for selecting single crystal diamond tools

To ensure optimal performance and tool longevity, please observe the following guidelines when using ultra-precision diamond cutting tools:

1. Tool Specification Selection
Match Tool Parameters to Workpiece Requirements
Select appropriate tool specifications (radius, rake angle, clearance angle, etc.) according to the material properties and processing requirements of the workpiece. For example, harder or more brittle materials may require a different radius or relief angle to ensure surface quality and avoid chipping.

Select Proper Tool Holder Size and Type
Choose a tool holder that is compatible with your machine’s clamping system. The size, shape, and rigidity of the holder will affect cutting stability and precision. A well-matched holder reduces vibration and ensures better surface finish.

2. Tool Selection Based on Material
For Non-Ferrous Metals
When machining materials such as aluminum, copper, or magnesium alloys, it is recommended to use a tool with 0° rake angle. This neutral angle provides better edge strength and stability, helping to achieve a smooth cutting process and extend tool life.

For Infrared Crystal Materials
When processing hard and brittle infrared optical materials such as ZnSe, Ge, or CaF₂, a tool with a -25° rake angle is preferred. The negative rake angle improves cutting edge strength and reduces the risk of chipping or cracking, ensuring high surface quality and dimensional accuracy.

Additional Recommendations
Always clean the tool and holder before installation to prevent misalignment or tool run-out.

Ensure the machine is operating under stable conditions with minimal vibration.

Avoid excessive cutting forces to maintain edge integrity, especially when using ultra-fine radius tips.

Use suitable coolant or air-blow systems when necessary to control temperature and remove chips.

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