Korloy Cnmg 120408 Turning Insert

1. Overview of Korloy CNMG 120408 Turning Insert

The Korloy CNMG 120408 insert is a diamond-shaped (rhombic) carbide insert designed for external and internal turning, grooving, and profiling. The 120408 designation refers to the insert's size: 12 mm on the side and 4 mm thickness. With its multi-edge geometry and positive rake angle, the CNMG insert offers excellent chip control, low cutting forces, and high precision.

• Insert Shape: Rhombic (diamond-shaped) with a 90° point angle (typically used for general-purpose machining).
• Size: 12 mm x 12 mm edge length, with a thickness of 4 mm.
• Insert Type: The CNMG insert features positive rake angles, which help in achieving smoother cuts and reducing cutting forces, ideal for both roughing and finishing applications.
• Cutting Edges: The insert is designed with multiple cutting edges (usually four), ensuring longer tool life and reducing the frequency of insert changes.

2. Key Features of Korloy CNMG 120408 Turning Insert

• Multi-Edge Design: The Korloy CNMG 120408 insert offers four usable cutting edges. This design allows users to rotate the insert during use, providing significant cost savings by maximizing the insert’s life before replacement.

• Positive Rake Angle: The positive rake angle of the insert helps reduce cutting forces and improves the surface finish. This makes it suitable for high-speed and high-precision turning tasks, where surface quality and chip control are crucial.

• Versatility: The CNMG 120408 insert is versatile, capable of handling both roughing and finishing operations. It is used in a wide range of materials, including carbon steel, alloy steel, stainless steel, cast iron, and non-ferrous metals, making it a go-to solution for diverse industries.

• Durability and Wear Resistance: The Korloy CNMG 120408 insert is manufactured from high-quality carbide material, providing exceptional wear resistance. It is particularly effective under high cutting temperatures and heavy-duty machining conditions, leading to longer tool life and fewer tool changes.

• Improved Chip Control: The design of the insert ensures efficient chip flow and helps avoid chip recutting, contributing to smoother cutting action and reducing the chances of vibration, tool wear, and thermal stress.

• Precision and Stability: The diamond-shaped geometry of the CNMG 120408 insert ensures that cutting forces are evenly distributed during machining. This leads to greater precision and stability, especially when working with challenging materials or when machining thin-walled parts.

3. Applications of Korloy CNMG 120408 Turning Insert

The Korloy CNMG 120408 turning insert is highly versatile and is ideal for a wide range of turning applications. Its ability to handle both roughing and finishing operations makes it suitable for a variety of industries and materials.

• Turning Operations: Whether for external or internal turning, the Korloy CNMG 120408 insert is designed to handle both light and heavy-duty cutting. It excels in high-feed rate and high-speed turning applications, delivering stable and precise cuts.

• Facing: The positive rake angle and geometry of the CNMG 120408 insert make it ideal for facing operations, ensuring smooth finishes and high cutting efficiency in a variety of materials.

• Grooving: The Korloy CNMG 120408 insert is effective for grooving tasks, providing clean, precise cuts in slots and narrow grooves. The insert’s geometry contributes to better chip removal, reducing the chances of clogging and improving machining efficiency.

• Profile Turning: The CNMG 120408 insert is also effective in profile turning applications, where the tool needs to follow complex contours. Its stability during machining ensures the accurate replication of profiles and complex shapes.

• General-Purpose Machining: The Korloy CNMG 120408 insert is suitable for general-purpose CNC turning, making it a great choice for industries such as automotive, aerospace, tool making, and general manufacturing.

4. Grades and Coatings for Korloy CNMG 120408 Inserts

Korloy offers the CNMG 120408 insert in a variety of grades and coatings that optimize its performance in different materials and cutting conditions. Selecting the right combination of grade and coating is essential for maximizing the insert’s life and cutting efficiency.

• CVD (Chemical Vapor Deposition) Coatings: CVD coatings are ideal for heavy-duty cutting tasks. These coatings improve wear resistance and thermal stability, making them perfect for roughing operations in stainless steel, high-strength steels, and cast iron.

• PVD (Physical Vapor Deposition) Coatings: PVD coatings offer high hardness, excellent wear resistance, and are particularly well-suited for finishing operations. They provide a smooth cutting edge and are effective for turning non-ferrous metals, aluminum, and mild steel.

• Grades:

  • K10: Ideal for general-purpose turning of mild steels, carbon steels, and cast iron. It offers a balanced mix of toughness and wear resistance.
  • K20: Optimized for medium-duty turning of stainless steels, tool steels, and high-alloy steels. It offers improved thermal stability and cutting-edge durability under higher temperatures.
  • M15: Excellent for high-speed cutting and heavy-duty operations in difficult-to-machine materials like hardened steels and super alloys. The M15 grade excels in thermal resistance and high wear resistance.

5. Advantages of Korloy CNMG 120408 Turning Insert

• Cost-Effectiveness: The multi-edge design of the Korloy CNMG 120408 insert helps extend tool life and reduce tooling costs by allowing multiple uses of each insert edge. This design results in fewer insert changes and lower overall tool costs.

• Improved Productivity: The insert’s high cutting efficiency and ability to handle both roughing and finishing tasks lead to higher material removal rates and shorter cycle times, improving productivity in high-volume manufacturing environments.

• Enhanced Surface Finish: The positive rake angle and optimized cutting geometry provide smoother cuts, improving surface finishes and reducing the need for post-machining operations.

• Stable Cutting: The diamond-shaped geometry ensures a stable cutting process with minimal vibration, making it ideal for precise machining and complex parts where dimensional accuracy is important.

• Long Tool Life: The Korloy CNMG 120408 insert offers excellent wear resistance and durability, particularly in high-speed and heavy-duty cutting environments. This results in a longer tool life, fewer tool changes, and reduced downtime.

• Versatility Across Materials: Whether you're working with mild steel, stainless steel, cast iron, or non-ferrous metals, the CNMG 120408 insert provides versatile performance across a wide range of materials and machining conditions.

6. Conclusion

The Korloy CNMG 120408 turning insert is a highly versatile and cost-effective solution for CNC turning applications. With its multi-edge design, positive rake angle, and excellent wear resistance, it offers superior cutting performance and longer tool life. Whether you are involved in roughing, finishing, or profiling, the Korloy CNMG 120408 insert provides stable, precise, and high-efficiency machining in various industries such as automotive, aerospace, and general manufacturing.

With a broad selection of grades and coatings available, the Korloy CNMG 120408 insert can be tailored to meet the specific needs of your machining process, ensuring maximum productivity, cost savings, and superior surface finishes. This makes it an excellent choice for anyone looking to optimize their turning operations and reduce tooling costs.