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CBN Insert for Stainless Steel

Cubic Boron Nitride (CBN) inserts represent a pinnacle in cutting tool technology, specifically engineered to tackle the demanding machining of hardened steels, chilled cast iron, and various super alloys. For professionals seeking to optimize their stainless steel machining operations, CBN inserts offer unparalleled advantages in wear resistance, thermal stability, and surface finish quality. Our range of specialized inserts is designed to meet the highest standards of modern manufacturing. For applications requiring extreme durability against abrasive wear, our High-hardness CBN Insert provides the necessary toughness. When micron-level accuracy is non-negotiable, the High-precision CBN Insert ensures consistent results batch after batch. The intense heat generated in high-speed machining is effectively managed by our High-temperature Resistant CBN Insert, which maintains its cutting edge integrity. Furthermore, for operations involving interrupted cuts or unstable conditions, the Impact-resistant CBN Insert delivers exceptional reliability and shock absorption, minimizing the risk of chipping and premature failure.


The <产品名字> is manufactured using a proprietary process that bonds a layer of premium polycrystalline CBN to a robust carbide substrate. This construction combines the extreme hardness and thermal conductivity of CBN with the structural strength of tungsten carbide, resulting in a tool that excels in severe machining environments. Key to its performance is the carefully engineered geometry of the cutting edge and the quality of the CBN grain, which directly influences tool life, cutting forces, and the final surface integrity of the workpiece. When integrated into a well-planned machining strategy, this insert significantly boosts productivity by enabling higher cutting speeds and feeds compared to traditional ceramic or carbide tools, while also reducing the frequency of tool changes and associated machine downtime.

Parameter Specification / Typical Value Notes / Benefit
CBN Content High Density (≥ 50 vol.%) Ensures superior abrasion resistance and edge retention.
Substrate Material Grade K20 / M30 Tungsten Carbide Provides excellent support and resistance to deformation.
Grain Size Sub-micron to 3 µm Finer grains enhance finish; coarser grains improve toughness.
Edge Preparation Honed (T-land / K-land) Increases edge strength, reduces micro-chipping during entry.
Coating TiN / TiAlN (Optional) Further reduces friction and crater wear, improves chip flow.
ISO Designation CNGA, DNGA, SNMA, etc. Compatible with standard toolholder systems.

For optimal performance with the <产品名字>, consider the following application guidelines:

  • Workpiece Material: Hardened steels (45-65 HRC), austenitic stainless steels (e.g., 304, 316), super alloys (Inconel, Hastelloy), and hard cast irons.
  • Cutting Speed (Vc): 80 - 350 m/min. Higher speeds are possible with stable setups and continuous cuts.
  • Feed Rate (f): 0.05 - 0.25 mm/rev. Adjust based on required surface finish and machine power.
  • Depth of Cut (ap): 0.1 - 2.0 mm. Suitable for finishing and light roughing operations.
  • Coolant: Dry machining is often preferred. If used, a high-pressure, consistent supply is critical to avoid thermal shock.
  • Tool Holding: Use high-precision, rigid toolholders with minimal runout (< 0.005 mm) to maximize insert life and accuracy.

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