![ВСТАВКА ТНМА](https://onmytoolings.com/wp-content/uploads/2024/04/TNMA-1.webp)
![tnma insert](https://onmytoolings.com/wp-content/uploads/2024/04/tnma-insert.webp)
Вставка ТНМА
TNMA insert angle: 60°Triangle carbide insert; 0° Negative Rake Insert and double-sided no chipbreaker;
Breaker Application: cast iron machining;
TCMA insert inscribed circle (IC) of 9.525mm/12.7mm, thickness of 4.76mm, and corner (nose) radius of 0.4mm/0.8mm/1.2mm/1.6mm;
Matching TNMA insert Tool Holder: PTFNR/L,PTTNR/L,PTGNR/L,MTGNR/L,MTJNR/L,MTFNR/L;
TNMA Insert can deal with multiple operations by combining different grades;
Материал: карбид вольфрама;
Внедрение продукции
TNMA insert is a triangular 60° angle without chipbreaker specially designed for hard material machining, mainly used in cast iron machining, with good triangular stability, the negative type insert can effectively utilise 6 cutting edges, economical and efficient.
TNMA insert Specification
TNMA Designation
- Т: Triangular shape.
- Н: Negative rake angle (provides stronger cutting edge).
- М: Tolerance class (indicates precision of inscribed circle and thickness). Typically +/- 0.13mm.
- A: With cylindrical hole, without chipbreaker.
Common TNMA Dimensions
Similar to TCMT inserts, TNMA inserts use numbers to signify size:
TNMA 33X:
- Inscribed Circle (IC): 0.375″ (3/8″)
- Толщина: 0,125″ (1/8″)
- X represents nose radius in sixteenths of an inch (e.g., 1 = 1/32″)
TNMA 43X:
- Inscribed Circle (IC): 0.5″ (1/2″)
- Thickness: 0.188″ (3/16″)
- X represents nose radius
TNMA insert holder
![turning tool holder](https://onmytoolings.com/wp-content/uploads/2024/04/PTFNRL-300x223.webp)
![turning tool holder](https://onmytoolings.com/wp-content/uploads/2024/04/PTTNRL-300x223.webp)
![turning tool holder](https://onmytoolings.com/wp-content/uploads/2024/04/PTGNRL-300x194.webp)
![turning tool holder](https://onmytoolings.com/wp-content/uploads/2024/04/MTGNRL-300x220.webp)
![turning tool holder](https://onmytoolings.com/wp-content/uploads/2024/04/MTJNRL-300x223.webp)
MTJNR/L
![MTJNR](https://onmytoolings.com/wp-content/uploads/2024/04/MTJN-DRAWING-300x171.webp)
TNMA carbide Insert Dimensions (ISO and ANSI)
ISO TYPE | ANSI TYPE | LE | IC | С | DI | RE |
---|---|---|---|---|---|---|
TNMA160404 | TNMA 331 | 16.5 | 9.525 | 4.76 | 3.81 | 0.4 |
TNMA160408 | TNMG332 | 16.5 | 9.525 | 4.76 | 3.81 | 0.8 |
TNMA160412 | TNMG 333 | 16.5 | 9.525 | 4.76 | 3.81 | 1.2 |
TNMA220408 | TNMG432 | 22 | 12.7 | 4.76 | 5.16 | 0.8 |
TNMA220412 | TNMG433 | 22 | 12.7 | 4.76 | 5.16 | 1.2 |
TNMA220416 | TNMG434 | 22 | 12.7 | 4.76 | 5.16 | 1.6 |
Example: TNMA 432
- Т: Triangular
- Н: Отрицательный передний угол
- М: Tolerance class
- A: 60° included angle
- 4: Inscribed circle of 0.5″ (1/2″)
- 3: Thickness of 0.188″ (3/16″)
- 2: Nose radius of 0.0625″ (1/16″) – good for general purpose work
The Science Behind Carbide Inserts: How They're Made and Why They're So Strong
Твердосплавные пластины являются одними из самых универсальных и долговечных режущих инструментов. Но как они сделаны? И что делает их такими сильными? В этом видео мы рассмотрим научные аспекты твердосплавных пластин: от свойств карбида вольфрама до производственного процесса.
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