October 7, 2026 Kyocera TN610 TN620 Cermet Inserts
Kyocera TN610 TN620 cermet inserts deliver exceptional surface finish quality and superior tool reliability for high-speed and general-purpose steel machining. Developed by Kyocera, this uncoated cermet lineup combines high melting point bonded phase technology with micro-grain hard phase structure. Alongside coated MEGACOAT NANO grades like PV710 and PV720, these inserts optimize metalworking operations across diverse turning environments.
Advanced Strengthening Technology of TN610 and TN620
The core innovation behind Kyocera TN610 TN620 lies in three key structural enhancements engineered to maximize machining stability and part quality:
1. High Melting Point Hybrid Bonded Phase
Combining the conventional cermet bonded phase (nickel and cobalt) with a special high melting point metallic bonded phase provides superior adhesion resistance to eliminate galling on steel workpieces, guaranteeing a high-quality surface finish.
2. Hybrid Hard Phase with High Fracture Resistance
By pairing a uniform micro-grain hard phase with high melting point binder, Kyocera TN610 TN620 increases compressive residual stress by 20% compared to conventional cermet grades, significantly improving edge strength and fracture resistance.
3. Special Surface-Hardened Wear Resistance
Gradient composition technology creates a hardened surface layer for maximum wear resistance, while the inner structure retains high toughness, chipping resistance, and thermal shock durability.
Product Range and Wiper Options
To support high-feed rates and precision finishing, Kyocera TN610 TN620 inserts are offered with specialized chipbreaker and wiper geometries:
- TN610: Specialized uncoated cermet grade for high-speed continuous turning with maximum wear resistance.
- TN620: General-use uncoated cermet grade balancing high toughness, fracture resistance, and surface finish.
- Negative Wiper Inserts: Equipped with WF (Finishing) and WE (Finishing-Medium) chipbreakers for high-feed efficiency.
- Positive Wiper Inserts: Featuring WP (Finishing) chipbreakers for low cutting force operations.
Technical Specifications
| Grade Name | Substrate Type | Coating Type | Primary Application | Key Advantage |
|---|---|---|---|---|
| TN610 | Uncoated Cermet | Uncoated | High-Speed Continuous Turning | Maximum Wear Resistance & High Speed |
| TN620 | Uncoated Cermet | Uncoated | General Use Steel Machining | 20% Higher Compressive Stress & Fracture Resistance |
| PV710 | MEGACOAT NANO Cermet | MEGACOAT NANO | High-Speed Finishing | Thermal Shock & High Wear Resistance |
| PV720 | MEGACOAT NANO Cermet | MEGACOAT NANO | General Use Steel Turning | High Adhesion Resistance & Surface Quality |
Conclusion
Choosing Kyocera TN610 TN620 cermet inserts ensures reliable dimensional accuracy, excellent surface roughness, and reduced tooling costs in steel turning. For genuine Kyocera cutting tools and expert application support, please Contact – LORIOT INDUSTRIAL.
