CNMA車刀
CNMA insert angle:0° Negative rake insert and no chipbreaker;
80° rhombic turning insert;
Primary workpiece material: Hard material; cast Iron; steel；
Primary workpiece material code: P; H; K
Insert holding method: Pin; Clamp;
Breaker application: Roughing, semi-finishing, finishing；
Matching cnma insert tool holder: PCBNR/L, PCLNR/L, MCLNR/L,MCBNR/L；
Grade: Both PVD and CVD；
Material : Tungsten Carbide；
CNMA insert tool holder
MCLNR/L
CNMA insert Introduction:
CNMA Carbide Inserts: The Essentials
- 形狀： Rhombic (diamond) with an 80-degree included angle.
- 間隙角： 0 degrees
- Cutting Edges: Double-sided, offering two cutting edges per insert for cost-effectiveness.
- Chipbreaker Geometries: Diverse range of chipbreaker styles from various manufacturers are available. These are tailored to specific materials and machining operations (roughing, finishing, etc.).
- Key Uses: Primarily used for general turning operations and some facing work on a range of materials.
Common Materials CNMA Inserts are Used For
- Cast Iron: Suitable for many cast iron applications.
Advantages of CNMA Inserts
- 性價比： Due to their double-sided design, offering longer tool life per insert.
- Versatile: The range of grades and chipbreakers make them suitable for many machining applications.
- Strong Geometric Shape: The 80-degree diamond shape provides strength and rigidity for their size.
Important Considerations
- Match the Grade to Your Material: Choosing the right insert coating and substrate composition is crucial for optimal tool life and performance in the specific material you’re cutting.
- Select the Right Chipbreaker: The chipbreaker geometry significantly influences how chips are formed and broken. It should be chosen based on the material and type of machining operation.
CNMA Insert Dimensions (ISO)
| TYPE | CNMA INSERT DIAMENTIONS(mm) | ||||
|---|---|---|---|---|---|
| LE | IC | S | DI | RE | |
| CNMA120404 | 12.9 | 12.7 | 4.76 | 5.16 | 0.4 |
| CNMA120408 | 12.9 | 12.7 | 4.76 | 5.16 | 0.8 |
| CNMA120412 | 12.9 | 12.7 | 4.76 | 5.16 | 1.2 |
| CNMA120416 | 12.9 | 12.7 | 4.76 | 5.16 | 1.6 |
| CNMA160608 | 16.1 | 15.875 | 6.35 | 6.35 | 0.8 |
| CNMA160612 | 16.1 | 15.875 | 6.35 | 6.35 | 1.2 |
| CNMA160616 | 16.1 | 15.875 | 6.35 | 6.35 | 1.6 |
| CNMA190612 | 19.3 | 19.05 | 6.35 | 7.94 | 1.2 |
| CNMA190616 | 19.3 | 19.05 | 6.35 | 7.94 | 1.6 |
Example: CNMA 120408
- 12: Inscribed Circle (IC) of 12.7mm (approx. 0.5 inches)
- 04: Thickness of 4.76mm (approx. 0.187 inches)
- 08: Corner radius of 0.8mm (approx. 0.031 inches)
Key Dimensions
Inscribed Circle (IC): The diameter of the largest circle that fits within the insert. Common IC sizes include:
- 12.7mm (0.5″)
- 16毫米（0.63″)
- 19.05mm (0.75″)
厚度： Impacts insert strength and the number of usable cutting edges. Common thicknesses include:
- 3.18毫米（0.125″)
- 4.76毫米（0.187″)
- 6.35mm (0.25″)
Corner Radius: Affects surface finish and strength at the cutting edge. Common sizes include:
- 0.4毫米（0.016″)
- 0.8毫米（0.031″)
- 1.2mm (0.047″)
The Science Behind Carbide Inserts: How They're Made and Why They're So Strong
硬質合金刀片是目前最通用、最耐用的切削工具之一。但它們是如何製作的呢？是什麼讓他們如此強大？在本影片中，我們將探索硬質合金刀片背後的科學，從碳化鎢的特性到製造流程。
我們的生產能力
