Kyocera DNMG150608 CA525 TAC02401 CNC Insert - Steel Turning
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- Stock: In Stock
- Model: CA525
- Weight: 0.10kg
- Manufactured: In Japan
- Ships: Worldwide
- Item Code: TAC02401
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1. Product Overview
The DNMG150608 is a precision-engineered indexable carbide turning insert from Kyocera, featuring the advanced CA525 CVD-coated grade. As a negative (0° clearance) double-sided insert, it provides 4 usable cutting edges, delivering exceptional cost-per-edge economy for steel and steel alloy machining.
Designed for general turning / facing of steel and steel alloys, this insert delivers exceptional wear resistance, thermal stability, and chip control in demanding CNC machining environments. With its 55° rhombic geometry, 0° clearance angle, and Plain Negative Insert, the DNMG150608 is the ideal choice for applications requiring double-sided design provides 4 usable cutting edges for maximum economy, no chipbreaker restriction allows maximum edge strength.
2. ISO Designation Breakdown
Every Kyocera insert is manufactured to strict ISO 1832 standards. The designation DNMG150608 encodes the complete geometry and specification profile:
| Symbol | Parameter | Specification |
|---|---|---|
| D | Insert Shape | 55° Rhombic (Diamond) Insert Shape |
| N | Clearance Angle | 0° Clearance Angle (Negative Insert) |
| M | Tolerance Class | ±0.05 mm (IC), ±0.13 mm (Thickness), ±0.08 mm (Corner) |
| G | Fixing & Chipbreaker | Cylindrical Hole with Chipbreaker (Double-Sided) |
| 15 | Size Code | IC = 15.875 mm (0.625"), Thickness = 6.35 mm (0.250") |
| 635 | Thickness Code | 6.35 mm (0.250") |
| 0.8 | Corner Radius | 0.8 mm (0.031") |
| — (Plain Insert) | Chipbreaker Code | Plain Negative Insert |
3. Engineering Dimensions & Geometry
The following dimensional data is verified per ISO 13399 and ANSI B212.4 standards:
| Dimension | Symbol (ISO) | Value (Metric) | Value (Imperial) | Tolerance |
|---|---|---|---|---|
| Inscribed Circle (IC) | d | 15.875 mm | 0.625 in | ±0.05 mm |
| Insert Thickness | s | 6.35 mm | 0.250" | ±0.13 mm |
| Corner Radius | r | 0.8 mm | 0.031" | ±0.08 mm |
| Fixing Hole Diameter | d₁ | 5.16 mm | 0.203 in | H7 |
| Cutting Edge Length | l | 17.50 mm | 0.689 in | ±0.11 mm |
| Clearance Angle | α | 0° | 0° | ±0.5° |
| Included Angle | ε | 55° | 55° | ±0.5° |
| Usable Cutting Edges | — | 4 (double-sided) | 4 | — |
4. Grade Details – Key Grade Characteristics
The CA525 grade represents Kyocera's advanced CVD coating technology, engineered specifically for general-purpose steel machining. Key characteristics include:
- Coating Architecture: CVD Multi-Layer (TiCN + Al₂O₃ + TiN) – multi-layer structure delivers superior wear resistance and thermal stability.
- Substrate Technology: Special carbide substrate with high-temperature deformation resistance, providing 10% improved high-temperature hardness compared to conventional substrates.
- Interface Optimization: Optimized interface improves film adhesion by 40%, preventing coating delamination under cyclic thermal loads.
- Crystal Structure: High-aspect ratio α-Al₂O₃ micro-columnar crystal structure for enhanced abrasion resistance and prolonged tool life.
- Color Identification: Gold – easy visual identification during tool setup and inventory management.
- Primary Application: Steel (P-class materials): Carbon steel, alloy steel, tool steel, free-cutting steel.
5. Grade Comparison Matrix
Select the optimal grade for your specific machining environment within the CA5 series:
| Grade | Coating | Primary Use | Machining Type | Workpiece |
|---|---|---|---|---|
| CA510 | CVD TiCN+Al₂O₃+TiN | High-speed continuous | Finishing – Medium | Carbon & Alloy Steel |
| CA515 | CVD TiCN+Al₂O₃+TiN | Continuous to light interrupted | Medium – Roughing | Steel, Cast Steel |
| CA525 | CVD TiCN+Al₂O₃+TiN | General-purpose steel | Continuous – Interrupted | Carbon, Alloy, Tool Steel |
| CA530 | CVD TiCN+Al₂O₃+TiN | Heavy interrupted / high feed | Roughing – Heavy | Steel, Forged Steel |
6. Chipbreaker Profile
Plain Negative Insert (No Chipbreaker)
Standard negative insert without molded chipbreaker. Double-sided design provides maximum economy with 4 usable cutting edges. Ideal for simple turning operations where chip control is managed by holder geometry or workpiece material.
- Double-sided design provides 4 usable cutting edges for maximum economy
- No chipbreaker restriction allows maximum edge strength
- Ideal for simple turning and facing where chip control is not critical
- Compatible with all standard negative toolholders with chipbreaker grooves
| Parameter | Range |
|---|---|
| Depth of Cut (ap) | 0.5 – 6.0 mm |
| Feed Rate (fn) | 0.10 – 0.50 mm/rev |
| Operation Class | General Turning / Facing |
7. Recommended Applications & Workpiece Materials
The DNMG150608 with CA525 grade is optimized for the following material groups and applications:
- Carbon Steels: C35, C45, C60, S235JR, S355JR – excellent for general structural and shaft machining.
- Alloy Steels: 4140 (42CrMo4), 4340, 8620 – ideal for automotive and aerospace component manufacturing.
- Tool Steels: H13, D2, O1 – suitable for die and mold industry applications.
- Free-Cutting Steels: 11SMn30, 12L14 – optimized for high-speed automatic lathe operations.
- Cast Steel: GS-52, GS-60 – stable performance in general engineering castings.
Note: For stainless steel, cast iron, or non-ferrous applications, refer to Kyocera CA6-series, CA4-series, or PR-series grades respectively. The CQ chipbreaker is specifically optimized for cast iron machining.
8. Application Map by Operation
| Operation | Depth of Cut (ap) | Feed (fn) | Cutting Speed (Vc) | Suitability |
|---|---|---|---|---|
| External Turning | 0.5 – 7.0 | 0.10 – 0.55 | 130 – 210 m/min | ★★★★★ Excellent |
| Internal Turning / Boring | 0.5 – 7.0 | 0.10 – 0.55 | 130 – 210 m/min | ★★★★☆ Very Good |
| Facing | 0.5 – 7.0 | 0.10 – 0.55 | 130 – 210 m/min | ★★★★★ Excellent |
| Copy Turning / Contouring | 0.1 – 2.0 mm | 0.05 – 0.20 mm/rev | 130 – 210 m/min | ★★★☆☆ Good |
9. Recommended Cutting Conditions
Parameters below are starting recommendations for stable machining with average application conditions. Adjust based on machine rigidity, coolant delivery, and workpiece condition:
| Workpiece Material | Hardness (HB) | Cutting Speed Vc (m/min) | Feed fn (mm/rev) | Depth of Cut ap (mm) |
|---|---|---|---|---|
| Carbon Steel (C35, C45) | 125 – 190 | 110 – 210 | 0.10 – 0.55 | 0.5 – 7.0 |
| Alloy Steel (4140, 4340) | 180 – 280 | 100 – 190 | 0.10 – 0.55 | 0.5 – 7.0 |
| Tool Steel (H13, D2) | 200 – 350 | 90 – 170 | 0.10 – 0.55 | 0.5 – 7.0 |
| Free-Cutting Steel (11SMn30) | ≤ 190 | 140 – 220 | 0.10 – 0.55 | 0.5 – 7.0 |
Values shown are starting recommendations. For hardened materials (> 45 HRC), reduce Vc by 20–30%. For unstable or long overhang setups, reduce feed by 15–25%. Negative inserts generate higher cutting forces—ensure adequate machine rigidity.
10. Operating Guidelines
- Coolant Recommendation: Use water-soluble coolant at 6–8% concentration for optimal chip evacuation and thermal management. High-pressure coolant (≥ 20 bar) is recommended for deep-hole boring.
- Tool Overhang: Minimize tool overhang to reduce vibration. For internal turning, keep overhang ≤ 4× tool diameter. Negative inserts require rigid setups due to higher cutting forces.
- Edge Preparation: This insert features a molded chipbreaker; no additional edge honing is required. Plain inserts (no chipbreaker) offer maximum edge strength for roughing.
- Entry Strategy: Use ramp entry or arc-in programming to avoid sudden impact on the cutting edge. Negative inserts generate higher radial forces—ensure workpiece clamping is secure.
- Chip Control: Ensure adequate coolant pressure for deep-hole applications. Negative holders with chipbreaker grooves assist chip evacuation for plain inserts.
- Insert Change: Replace insert when flank wear (VB) exceeds 0.3 mm or when surface finish degrades noticeably. Double-sided design allows indexing to second side before replacement.
- Storage: Store in original packaging away from direct moisture and corrosive environments. Protect cutting edges from contact with other tools.
11. Toolholder Compatibility
The DNMG150608 is compatible with standard ISO negative toolholders featuring D, N, Q, or V clamping styles. Recommended holder series:
| Holder Series | Clamping Style | Insert Size | Shank Sizes | Application |
|---|---|---|---|---|
| DDJNR/L | Screw Clamp (D-style) | 15 | 25×25 mm, 32×32 mm, 40×40 mm | External Turning / Facing |
| DDNNR/L | Screw Clamp (N-style) | 15 | 25×25 mm, 32×32 mm, 40×40 mm | External Turning / Profiling |
| DDQNR/L | Screw Clamp (Q-style) | 15 | 25×25 mm, 32×32 mm, 40×40 mm | External Turning / Copying |
| DVJNR/L | Screw Clamp (V-style) | 15 | 25×25 mm, 32×32 mm, 40×40 mm | Internal Turning / Boring |
Important: Ensure the holder is designed for negative inserts (0° clearance). Using positive holders will result in incorrect geometry and accelerated wear. Double-sided inserts require holders with chip pockets or chipbreaker grooves for effective chip control.
12. Packaging & Ordering Information
- Packaging: Industrial-grade blister pack containing 10 inserts per box. Each insert is individually protected to prevent edge damage during transit.
- Minimum Order Quantity: 1 box (10 pieces).
- MPN / Catalog No.: TAC02401
- ISO Designation: DNMG150608
- Grade: CA525
- Manufacturer Warranty: Full manufacturer warranty against defects in material and workmanship.
- Bulk Orders: Volume pricing available for orders of 50+ boxes. Contact our technical sales team for quotation.
13. Catalog Meta Data
| Catalog Series | Kyocera Turning Inserts – CA5 Series |
| Product Group | Indexable Turning Inserts – Negative 0° Clearance |
| Material Class | P10 – P30 (ISO 513) |
| Coating Technology | CVD Multi-Layer (MEGACOAT Technology) |
| Substrate Type | Special Deformation-Resistant Carbide |
| Color Code | Gold |
| Effective Cutting Edges | 4 (double-sided, indexable) |
| Standards Compliance | ISO 1832, ANSI B212.4 |
Why Buy from Kyotow.com? We supply 100% genuine Kyocera industrial cutting tools backed by full manufacturer warranty. Every insert is sourced through authorized distribution channels to ensure authenticity, traceability, and consistent performance. Our technical support team is available to assist with grade selection, parameter optimization, and application troubleshooting.
✓ Genuine Kyocera Product
| Manufacturer | Kyocera Corporation |
|---|---|
| Status | Verified Original Product |
| Quality Assurance | Guaranteed Genuine Kyocera Components |
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Following the Japanese philosophy of Monozukuri (物の作り), we strive to maintain exceptional technical accuracy throughout our product catalog.
- Confirm dimensions, geometry, coating, and grade using the official Kyocera item code.
- Technical datasheets are available upon request.
- For technical clarification contact sales.kyotow@gmail.com.
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100% Accuracy Guarantee:
Full refund or replacement will be provided if the verified Kyocera item received differs from the official item code specified in your order confirmation. -
Order Finality:
Due to automated procurement systems connected directly to global factory distribution channels, orders cannot be modified or cancelled once processing has commenced. -
Technical Assistance:
Please verify machine compatibility, insert geometry, coating, and application grade before placing your order.
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Need Technical Assistance?
Contact our industrial tooling specialists for application support, tooling recommendations, datasheets, and compatibility verification.
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Why are our prices so low? (価格が安い理由): Kyotow sources genuine Kyocera tools directly from domestic Japanese distribution networks, completely bypassing the steep regional markups, localized sales overhead, and heavy middleman margins of Western distributors. We pass 100% of those structural savings directly to your machine shop.
Kyotowは日本の国内流通ネットワークから京セラ正規品を直接仕入れることで、欧米の現地代理店による大幅な上乗せ価格や営業コスト、中間マージンを完全に排除しています。その構造的メリットを、お客様の加工現場へ100%還元いたします。
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