Brazed CBN Inserts (PCBN Cutting Tools)

Uking Diamond’s Brazed CBN Inserts (Cubical Boron Nitride) inserts bridge the gap between traditional small-tipped inserts and expensive solid CBN blanks. By introducing a proprietary high-temperature molecular diffusion alloy interface, our inserts survive high thermal shock across demanding non-ferrous and ferrous applications:

• Hardened Steel & Die Components (HRC 55–65)
  Replaces traditional grinding processes with high-speed “Hard Turning” ( HT ) on automotive transmission shafts, gears, bearings, and mold dies, maintaining sub-micron tracking tolerances.
• Heavy-Duty High-Chromium Cast Iron & Brake Discs
  Resists severe abrasive wear when face milling or turning heavy industrial pumps, mill rolls, and automotive brake rotors, allowing high-velocity material removal rates ( MRR ).
• Sintered Powder Metallurgy (PM) Parts
  Overcomes the micro-interrupted impact stresses inherent in porous automotive valve seats, guides, and gears without micro-chipping along the cutting edge.
• Superalloys & Inconel Profiles
  Maintains high chemical inertness and red-hardness under searing friction zone temperatures (≥ 1000°C), preventing rapid crater wear.

PCD Models & Specs

1. Diffusion Bonding Immunity Against Thermal Delamination

Standard tipped CBN tools rely on a razor-thin layer of vacuum braze silver/copper paste. When cutting hardened steel at high speeds, temperatures in the shear zone frequently spike past 800°C, degrading the braze strength and causing the CBN tip to instantly fly off (delaminate).

Uking’s Hybrid Welding technology utilizes an ultra-high-pressure high-temperature co-diffusion process. The transition alloy layer morphs into the carbide backing and the CBN matrix simultaneously, creating a seamless gradient structural profile. With zero conventional braze seams to degrade, the insert operates smoothly at elevated cutting velocities ( Vc≥200 m/min) with absolute process safety.

2. Micro-Honed Chamfer Geometry & Tailored CBN Content

To combat edge micro-chipping, every Hybrid Welding batch receives customized, automated edge preparation:

High-Content CBN (~85%–95%): Sintered with a metallic binder (Co-Al) network, optimizing thermal conductivity and fracture toughness for heavily interrupted cast iron milling.

Low/Medium-Content CBN (~50%–65%): Bound within a ceramic matrix (TiN/TiC), maximizing chemical wear resistance and crater hardness for high-speed continuous hard turning ( ≥180 m/min ).

Each insert edge is polished with specific S-lands (honed round edges) or T-lands (negative chamfers) to protect the tip from sudden mechanical fracture during the initial cut entry.

Why Choose Uking Diamond Brazed CBN Inserts?

Delamination-Free Process Stability: Diffusion-welded interfaces guarantee zero tip structural detachment, even during high-temperature dry cut cycles.

Cost-Per-Edge Optimization: Features solid hybrid integration that allows multi-tip configuration per blank, multiplying your cutting corners and reducing tooling costs.

Elimination of Grinding Processes: Replaces expensive, slow grinding with high-efficiency hard-turning, reducing total cycle times by up to 60%.Strict Micron-Level Runout Control: Each insert is laser-inspected to fit flawlessly into international standard tool holders with zero centerline indexing deviation.

Application

Parameters

Model: VNGA1604-H
Cutting Edge Length(mm) : 16.6
Inscribed Circle(mm) : 9.525
Thickness(mm) : 4.76
Grade: UK6000   UK7800
Note: Nose Radius It can be customized according to your requirements.

Model: VCGW1604-H VBGW1604-H
Cutting Edge Length(mm) : 16.6
Inscribed Circle(mm) : 9.525
Thickness(mm) : 4.76
Grade: UK6000   UK7800
Note: Nose Radius It can be customized according to your requirements.

Model: DNGA1504-H
Cutting Edge Length(mm) : 15.5
Inscribed Circle(mm) : 12.7
Thickness(mm) : 4.76
Grade: UK6000   UK7800
Note: Nose Radius It can be customized according to your requirements.

Model: DNGA1506-H
Cutting Edge Length(mm) : 15.5
Inscribed Circle(mm) : 12.7
Thickness(mm) : 6.35
Grade: UK6000  UK7800
Note: Nose Radius It can be customized according to your requirements.

Are your hard turning lines suffering from unpredictable tool lifespans, frequent indexing downtime, or severe CBN tip de-welding when profiling HRC60 gears?

Stop watching your profit margins grind away on low-tier brazed inserts that disintegrate under high thermal shear stress. Backed by 20 years of ultra-high pressure and advanced plasma synthesis authoritative metallurgical engineering in Henan, China, Uking Diamond manufactures industrial-grade Hybrid Welding CBN inserts that maximize your machine tool uptime and push your component reject rates to absolute zero.

Because advanced hybrid-diffusion CBN inserts are high-capital, high-efficiency production assets, we do not distribute unchecked free samples. We focus entirely on high-intent manufacturing process optimization.

Ready to completely eliminate tool delamination and double your MRR? Contact our global tool engineering desk today with your target ISO insert configuration (e.g., CNGA 120408), your exact workpiece hardness (HRC), and your current cutting limitation (e.g., thermal micro-chipping or crater wear). Our laboratory will instantly open your Corporate CBN Validation Pass: receive a prioritized testing batch of our advanced hybrid welding inserts at direct factory wholesale cost, with 100% of the sample evaluation cost fully credited back to your balance upon your first bulk commercial order.

 [ Contact Our Global Tooling Desk & Request Your Hybrid CBN Quote Now ]