Kyocera WNMG080408WF CA025P TMH00327 Turning Insert - Stable Finish
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- Stock: In Stock
- Model: CA025P
- Weight: 0.10kg
- Manufactured: In Japan
- Ships: Worldwide
- Item Code: TMH00327
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Product Overview
The WNMG080408WF CA025P TMH00327 is a precision-engineered 80° trapezoid carbide turning insert manufactured by Kyocera. Designed for stable finishing, this negative-insert (0° clearance) features a 0.8 mm nose radius and 4.76 mm thickness. The WF chipbreaker geometry ensures controlled chip flow and reduced cutting forces, delivering repeatable dimensional accuracy and superior surface finish across high-volume CNC production runs.
ISO Designation Breakdown
| Position | Code | Meaning |
|---|---|---|
| 1st Letter | W | Insert shape: 80° trapezoid |
| 2nd Letter | N | Clearance angle: 0° (negative insert) |
| 3rd Letter | M | Tolerance class: M (±0.05 mm inscribed circle, ±0.08 mm thickness) |
| 4th Letter | G | Fixing & chipbreaker: Hole present, WF type |
| Size Digits | 0804 | Inscribed circle: 12.7 mm (08); Thickness: 4.76 mm |
| Nose Radius | 08 | Corner radius: 0.8 mm |
Engineering Dimensions & Geometry
- Inscribed Circle (IC): 12.7 mm (08)
- Insert Thickness (S): 4.76 mm
- Nose Radius (RE): 0.8 mm
- Clearance Angle: 0° (negative basic)
- Inscribed Circle Tolerance: ±0.05 mm (M-class)
- Thickness Tolerance: ±0.08 mm (M-class)
- Hole Diameter: 4.4 mm (standard for WNMG series)
- Overall Length (L): Approx. 16.6 mm (WNMG)
Grade Details – Key Grade Characteristics
CA025P is a CVD-coated carbide grade engineered for steel machining (ISO P-class). The substrate combines a tough gradient carbide core with a multi-layer coating of TiCN, Al₂O₃, and TiN. This architecture provides:
- Exceptional crater and flank wear resistance at elevated cutting temperatures
- High adhesion strength between coating and substrate preventing delamination
- Optimized thermal barrier properties for consistent performance in wet and dry machining
- Balanced toughness and hardness suitable for continuous and lightly interrupted cuts
Grade Comparison Matrix
| Grade | Coating | ISO Range | Best For |
|---|---|---|---|
| CA025P | TiCN/Al₂O₃/TiN CVD | P15 – P35 | Medium-to-high speed steel turning |
| CA025P | TiCN/Al₂O₃/TiN CVD | P15 – P35 | General steel machining, stable conditions |
| CA5525 | PVD (TiAlN) | P10 – P30 | Interrupted cuts and lower speeds |
| PR930 | PVD | P20 – P40 | Heavy roughing and forged surfaces |
Chipbreaker Profile
WF Chipbreaker: Wide land and open groove for stable chip control during medium-to-heavy finishing passes.
Wide Finishing chipbreaker for stable cutting
Recommended Applications & Workpiece Materials
Medium-carbon steel, bearing steel, and case-hardened steels requiring stable finish.
- Shaft turning and facing operations on CNC lathes
- External diameter (OD) and internal diameter (ID) boring
- Continuous cutting and light interrupted cutting profiles
- Dry machining or minimal coolant applications
Application Map by Operation
| Operation | Suitability | Notes |
|---|---|---|
| External Turning | ★★★★★ | Ideal for straight and tapered diameters |
| Facing | ★★★★☆ | Use reduced feed at center to avoid chip jamming |
| Profiling | ★★★☆☆ | Limited by nose radius; larger radii reduce corner clearance |
| Parting Off | ★☆☆☆☆ | Not recommended; use dedicated parting inserts |
| Threading | ☆☆☆☆☆ | Not applicable; use thread-turning inserts |
Recommended Cutting Conditions
| Parameter | Recommended Range | Optimal Starting Point |
|---|---|---|
| Cutting Speed (Vc) | 180 – 280 m/min | 200 m/min (medium carbon steel) |
| Feed Rate (fn) | 0.10 – 0.30 mm/rev | 0.25 mm/rev |
| Depth of Cut (ap) | 0.3 – 2.0 mm | 1.5 mm |
Values are indicative for medium-carbon steel (C45/1045). Reduce speed by 15–20% for alloy steels and increase by 10–15% for free-cutting steels.
Operating Guidelines
- Ensure insert seat and toolholder pocket are clean before clamping to avoid micro-vibration.
- Use adequate coolant concentration (8–10%) for steel machining to prevent built-up edge (BUE).
- Verify tool overhang is minimized; excessive overhang reduces rigidity and accelerates wear.
- Monitor flank wear (VB) regularly; replace insert when VB reaches 0.3 mm to maintain surface quality.
- For interrupted cuts, reduce cutting speed by 20–30% to prevent thermal shock and edge chipping.
- Always use appropriate personal protective equipment (PPE) when handling sharp carbide inserts.
Toolholder Compatibility
Compatible Holder Families: MWJNR, MWQNR, SWJCR, SWQCR, DWJNR, DWQNR series toolholders
80° trapezoid negative inserts with 0° clearance require lever-lock or screw-clamp holders with corresponding W-seat angles.
Ensure the toolholder seat angle matches the insert shape (W-seat) and the clamping mechanism (lever or screw) is rated for negative inserts with 0° clearance.
Packaging & Ordering Information
- Standard Packaging: 10 inserts per sealed plastic container
- Minimum Order Quantity: 10 inserts (1 pack)
- MPN (Manufacturer Part Number): TMH00327
- Grade Code: CA025P
- Country of Origin: Japan
- Warranty: Full manufacturer defect warranty against material and workmanship flaws
Catalog Meta Data
| Attribute | Value |
|---|---|
| Product Line | Kyocera Standard Turning Inserts |
| Insert Standard | ISO 1832 |
| Coating Technology | CVD Multi-layer (TiCN + Al₂O₃ + TiN) |
| Substrate Type | Gradient WC-Co carbide |
| Application Class | ISO P15 – P35 |
| Hand of Cut | Neutral |
| Price per Insert | $6.0 |
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To guarantee absolute accuracy for your machining requirements, please cross-reference the exact Kyocera Item Code, Item Name, and Material Grade.
🔹How to Proceed with Your Purchase:
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We offer a full refund or replacement if the verified Kyocera part number of the item received differs from the official item code specified in your order confirmation.
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If you have any doubts regarding tool geometries, coatings, or application grades, please consult our support team at sales.kyotow@gmail.com before finalizing your procurement.
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