Korloy Carbide Inserts - CNMG120408

1. Overview of Korloy CNMG120408 Carbide Inserts

The CNMG120408 is a diamond-shaped carbide insert with a positive rake angle and a neutral geometry, making it highly effective for general-purpose turning and finishing operations. The 120408 in the designation indicates that the insert has a 12 mm (edge length) square shape and a 4 mm thickness, making it suitable for a range of medium to light-duty cutting applications.

• Insert Shape: Diamond-shaped with an 80° point angle.
• Size: 12 mm x 12 mm with a 4 mm thickness.
• Insert Type: Positive rake angle for smooth cutting performance and excellent chip flow.
• Cutting Edges: Features 4 cutting edges, allowing for extended tool life by rotating the insert during use.

2. Key Features of Korloy CNMG120408 Inserts

• Positive Rake Angle: The positive rake angle of the CNMG120408 insert helps to reduce cutting forces, providing smoother cuts and improving chip control. This geometry is particularly advantageous when performing light to medium cutting operations, as it reduces the risk of tool deflection and vibration.

• Multi-Edge Design: The multi-edge design of the CNMG120408 insert allows it to be rotated, offering four cutting edges in total. This prolongs the life of the insert, reduces tooling costs, and ensures more economical machining by reducing the frequency of insert changes.

• Durability and Wear Resistance: The CNMG120408 is manufactured using high-quality carbide, which offers excellent hardness and wear resistance. This results in a longer tool life, especially in continuous or high-speed operations, where maintaining tool stability is crucial.

• Versatility: The neutral cutting geometry of the CNMG120408 insert makes it ideal for a wide range of turning, grooving, and profiling applications. It can handle a variety of materials, including carbon steel, alloy steel, stainless steel, cast iron, and non-ferrous metals.

• Improved Chip Control: The insert's design, coupled with its high-quality carbide material, provides excellent chip control and prevents chip clogging. This is especially important in turning operations where smooth chip flow is critical for preventing machining disruptions.

3. Applications of Korloy CNMG120408 Inserts

The CNMG120408 carbide insert is designed for a broad range of machining tasks, providing versatility and precision for various industries and materials. Key applications include:

• Turning Operations: Whether roughing or finishing, the CNMG120408 is ideal for general turning applications in materials such as steel, stainless steel, cast iron, and aluminum. The positive rake angle ensures stable cutting forces for smooth and efficient machining.

• Facing Operations: The CNMG120408 insert is highly effective for facing applications, where flat, precise surfaces are needed. Its positive rake angle provides a smooth cutting action, producing high-quality surface finishes with minimal effort.

• Grooving and Parting: The insert’s robust design makes it suitable for grooving and parting applications, where precise cuts and smooth finishes are critical for the component’s quality.

• Profiling: The CNMG120408 is also used in profiling operations where intricate and detailed shapes are required. The multi-edge design allows for better stability and precision during complex cuts.

• General-Purpose Machining: With its neutral geometry and broad material compatibility, the CNMG120408 is ideal for a wide variety of general-purpose machining applications, from mass production to prototyping.

4. Grades and Coatings

Korloy offers a range of grades and coatings for the CNMG120408 carbide insert, providing tailored solutions for different materials, machining conditions, and performance needs:

• CVD (Chemical Vapor Deposition) Coatings: Korloy’s CVD coatings are ideal for applications involving high-speed cutting and heavy-duty machining of tough materials such as stainless steel, tool steel, and cast iron. These coatings provide excellent heat resistance, hardness, and wear resistance, allowing the insert to handle more demanding cutting conditions.

• PVD (Physical Vapor Deposition) Coatings: PVD coatings offer superior surface finish properties and high thermal stability. These coatings are excellent for fine machining applications and provide a smoother finish, especially when working with non-ferrous materials and precision parts.

• Grades: Korloy offers various carbide grades designed for specific machining conditions:

  • K20: Ideal for general turning in steels and cast iron, providing a good balance of toughness and wear resistance.
  • K10: Suitable for medium-speed cutting of steel, stainless steel, and cast iron, offering excellent wear resistance and durability.
  • M15: Best for turning and finishing operations in tougher materials, with high thermal stability and resistance to wear under heat-generating conditions.

5. Advantages of Korloy CNMG120408 Inserts

• Long Tool Life: The carbide material and multi-edge design of the CNMG120408 insert ensure excellent tool life, reducing downtime and increasing overall machining productivity.

• Cost-Effective: The multi-edge design offers four cutting edges, which means the insert can be rotated for extended use, reducing tool replacement costs and increasing overall cost efficiency in high-volume production.

• High Productivity: The insert’s ability to perform well in both roughing and finishing operations ensures faster machining, higher material removal rates, and better overall productivity.

• Superior Surface Finish: The positive rake angle and high-quality carbide material allow for smoother cuts and improved surface finish, even during challenging operations and on difficult-to-machine materials.

• Stable and Reliable Cutting: Thanks to its robust design and excellent chip control, the CNMG120408 insert provides stable cutting performance, minimizing the risk of tool breakage, deflection, or vibration, especially during heavy-duty cutting.

• Versatility Across Materials: The CNMG120408 is designed to work across a broad spectrum of materials, including mild steel, stainless steel, cast iron, and even non-ferrous metals. This makes it a highly versatile insert suitable for a wide range of industries.

6. Conclusion

Korloy’s CNMG120408 carbide insert is a versatile and reliable solution for a wide range of turning, facing, and profiling operations. With its positive rake angle, multi-edge design, and high-performance carbide material, this insert ensures high cutting efficiency, superior surface finishes, and long tool life across a variety of materials.

Whether you are working in the automotive, aerospace, general manufacturing, or mold and die industries, the CNMG120408 insert offers an excellent balance of performance, durability, and cost-effectiveness. Its ability to handle light to medium-duty operations while offering extended tool life and stable cutting performance makes it an ideal choice for general-purpose machining tasks in both high-volume and precision environments.

By selecting the right grade and coating, the CNMG120408 can be customized to meet the specific needs of any machining application, ensuring that manufacturers achieve optimal results while minimizing downtime and tooling costs.