TNMG Insert Mitsubishi

1. Overview of Mitsubishi TNMG Inserts

The TNMG insert from Mitsubishi is designed with a triangular shape and 90-degree included angle, offering four cutting edges (two on each side) for efficient material removal. The multi-edge design enhances the insert's durability and extends its useful life, making it a cost-effective option for both roughing and finishing applications.

• Insert Shape: Triangular (TNMG) with a 90-degree included angle, providing four edges per insert for extended tool life.
• Insert Size: Typically available in various sizes, including 12 mm x 12 mm (often referred to as TNMG 160404 or TNMG 160408), 16 mm x 16 mm, and others, providing flexibility for different machining depths and geometries.
• Insert Type: Positive rake angles for reduced cutting forces and improved surface finishes in high-speed and light cutting operations.
• Cutting Edges: Four usable cutting edges (two on each side), which can be rotated to prolong the life of the insert and optimize overall tooling costs.

2. Key Features of Mitsubishi TNMG Inserts

• Multi-Edge Design: The four cutting edges of the TNMG insert reduce tooling costs by allowing users to rotate the insert when one edge becomes worn. This design results in fewer insert replacements and reduced downtime during production.

• Positive Rake Angle: The positive rake angle of Mitsubishi TNMG inserts ensures smooth cutting with low cutting forces. This leads to improved chip flow, reduced vibration, and a more stable cutting process, making them ideal for high-speed machining.

• Versatility: Mitsubishi TNMG inserts are suitable for a wide range of turning operations, including roughing, profiling, grooving, and facing. These inserts can handle a variety of materials, such as steel, stainless steel, cast iron, alloy steels, and non-ferrous metals, making them a versatile choice for multiple machining tasks.

• Durability and Wear Resistance: Made from high-quality carbide materials, Mitsubishi TNMG inserts are designed to withstand high cutting temperatures, extreme forces, and abrasive conditions. They are ideal for extended tool life and efficient machining in both high-speed and heavy-duty operations.

• Improved Surface Finish: The sharp cutting edges and positive rake geometry of the Mitsubishi TNMG inserts contribute to superior surface finishes in both roughing and finishing operations. The inserts are designed to minimize vibrations and cutting forces, ensuring smooth cuts and accurate dimensions.

• Chip Control: Mitsubishi’s chip control technology integrated into the TNMG inserts promotes smooth chip flow, reducing the risk of chip recutting, and improving the efficiency and stability of the cutting process. This also helps avoid machine tool damage and improves overall cycle time.

3. Applications of Mitsubishi TNMG Inserts

Mitsubishi TNMG inserts are designed for use in a wide range of applications. Their multi-edge design, high cutting efficiency, and versatility make them suitable for various turning, grooving, and profiling tasks across industries such as automotive, aerospace, heavy machinery, and general manufacturing.

• Turning Operations: The Mitsubishi TNMG insert is ideal for external turning, internal turning, and bar turning. Its multi-edge geometry allows for continuous use, while its positive rake angle improves the cutting process, reducing tool wear and increasing material removal rates.

• Grooving: Mitsubishi TNMG inserts are effective in grooving applications where precise, narrow cuts are required. Their stable cutting geometry helps in maintaining consistent groove widths and depths, ensuring reliable and accurate results.

• Profiling: The sharp cutting edges and positive rake angle make TNMG inserts suitable for profile turning operations, especially when intricate or complex profiles are required. Their low cutting forces improve stability, reducing the likelihood of tool deflection or part distortion.

• Facing: The Mitsubishi TNMG insert performs well in facing operations, providing high-quality surface finishes with minimal cutting force. This makes it ideal for producing smooth, accurate faces on workpieces, especially in high-precision applications.

• General-Purpose Machining: Mitsubishi TNMG inserts are an excellent choice for general-purpose turning applications where both roughing and finishing tasks are required. Their flexibility allows for efficient material removal, as well as smooth finishes on a wide range of materials.

4. Grades and Coatings for Mitsubishi TNMG Inserts

To ensure optimal performance under various cutting conditions, Mitsubishi TNMG inserts are available in a wide variety of grades and coatings. These help improve tool life, cutting efficiency, and surface finish in specific materials and applications.

• CVD (Chemical Vapor Deposition) Coatings: CVD coatings are designed for high-performance turning, especially in roughing operations. These coatings enhance the wear resistance and thermal stability of the insert, making them ideal for cutting steel, cast iron, and other tough materials.

• PVD (Physical Vapor Deposition) Coatings: PVD coatings provide a high level of hardness and resistance to wear, making them well-suited for finishing operations or machining non-ferrous metals like aluminum and copper. The coatings also improve surface finish by providing a smoother cutting edge.

• Grades:

  • K10: General-purpose grade for machining carbon steels, mild steels, and cast iron. This grade provides good balance between toughness and wear resistance.
  • K20: Suitable for medium-duty applications, particularly for stainless steels, tool steels, and alloy steels. It offers improved thermal stability and edge retention for higher cutting temperatures.
  • M20: Ideal for high-speed cutting and heavy-duty applications, particularly in high-strength steels, hardened materials, and superalloys. This grade provides excellent wear resistance and thermal stability.
  • P10/P15: Grades specifically designed for non-ferrous metals like aluminum, brass, and copper, offering superior surface finishes and chip control.

5. Advantages of Mitsubishi TNMG Inserts

• Extended Tool Life: The multi-edge design and high-quality carbide material of the Mitsubishi TNMG insert provide long-lasting performance, reducing tool change frequency and downtime in high-volume production environments.

• Cost Efficiency: By utilizing four cutting edges per insert and extending tool life, Mitsubishi TNMG inserts provide excellent cost savings in terms of reduced tooling costs and improved productivity.

• Versatility: The TNMG insert is versatile enough to handle both roughing and finishing operations, making it a go-to solution for many different turning tasks. It performs well across a wide range of materials, from steel to non-ferrous metals.

• Improved Surface Finish: The positive rake angle and sharp cutting edges produce smoother surface finishes with fewer tool marks and minimal burr formation, reducing the need for secondary finishing operations.

• Higher Productivity: The efficient chip removal and consistent cutting performance of Mitsubishi TNMG inserts allow for higher material removal rates and shorter cycle times, resulting in improved throughput in both high-speed and heavy-duty applications.

• Superior Chip Control: With their effective chip-breaking geometry and smooth chip flow, Mitsubishi TNMG inserts minimize chip recutting and reduce vibration, leading to smoother cutting processes and improved tool life.

6. Conclusion

The Mitsubishi TNMG insert is an ideal choice for CNC turning, grooving, profiling, and facing applications. With its multi-edge design, positive rake angle, and superior wear resistance, the TNMG insert delivers excellent cutting performance, extended tool life, and high-quality surface finishes. Available in a wide range of grades and coatings, these inserts are versatile and adaptable to various materials and machining conditions, making them a reliable tool for many industrial applications.

Whether used for roughing or finishing, Mitsubishi TNMG inserts provide cost-effective, high-performance solutions for manufacturers seeking precision, durability, and productivity.