Integral Brazed CBN Inserts are designed for selected hard-turning and batch-machining operations where wear resistance, cutting-edge utilization and controlled tooling costs are important. Choosing the right insert depends on the workpiece material, machining stage, cutting conditions and required surface quality.
This guide covers the key design features, available CBN grades, typical applications and selection limits to help manufacturers assess whether these inserts fit their machining requirements.
UHD Integral Brazed CBN Inserts use a double-sided vacuum-welded construction to join the CBN cutting material with a carbide substrate. Key considerations include:
Different CBN grades address different combinations of wear resistance, heat resistance and cutting impact. Use the following table as an initial reference, then confirm suitability for the actual workpiece and operation.
| Grade | Main Characteristics | Typical Materials | Typical Operations |
|---|---|---|---|
| USN100 | Wear and impact resistance | Alloy cast iron, gray cast iron and ductile iron | Roughing and semi-finishing |
| USN200 | Wear and heat resistance | Alloy cast iron, gray cast iron and ductile iron | Semi-finishing and finishing |
| USN650 | Wear and impact resistance | Hardened bearing steel, die steel and tool steel | Semi-finishing or finishing |
Depending on the selected grade and cutting conditions, Integral Brazed CBN Inserts may be considered for batch machining of:
These are potential application areas, not a guarantee of suitability for every component. Material hardness, surface condition, machining allowance and cutting stability should be assessed before selecting a grade.
Integral Brazed CBN Inserts are not intended for every material or machining process. Based on the stated product limitations, they are not recommended for:
Strong interrupted cutting, unstable clamping and extreme cutting parameters also require careful assessment. Another grade, insert structure or cutting material may be more appropriate for these conditions.
Before choosing a grade or insert specification, confirm these five factors:
Evaluate the grade together with the insert geometry and actual machining conditions rather than choosing by grade name alone.
Integral Brazed CBN Inserts may be used on compatible CNC lathes and hard-turning machines with adequate rigidity and suitable toolholders. Before ordering, confirm insert dimensions, mounting requirements and machining conditions against your equipment.
Share your workpiece material, hardness, machining operation and insert requirements to discuss relevant CBN grades and product specifications with UHD.
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