TNMM Carbide Inserts For Steel And Cast Iron

This double-sided triangular TNMM turning insert has a negative insert geometry and was designed for the medium to extra heavy machining of cast steels and steel. The inscribed circle has a diameter of 9.525mm, 4.76mm thickness, and 0.8mm nose radius.

Features and Benefits
● Each insert is of the highest coated turning grade, bringing greater stability and performance in a variety of cutting conditions
● Thicker coating significantly improves tool durability and increases productivity by allowing for higher cutting speeds
● Processed post-treatment to improve the toughness and reliability of cutting edge

Typical Applications
● Cast steel
● Steel

The strength of TNMM inserts, like any other cutting tool inserts, is primarily determined by the material from which they are made. TNMM inserts are typically made of tungsten carbide, which is known for its exceptional hardness, wear resistance, and strength.

Tungsten carbide is a composite material composed of tungsten and carbon atoms. It is often combined with other carbides and binders to enhance its properties. The resulting material is extremely hard and can withstand high temperatures, making it well-suited for cutting applications in metalworking.

The key strength-related properties of tungsten carbide inserts, including TNMM inserts, include:

1.Hardness: Tungsten carbide is one of the hardest materials used in cutting tool applications. This hardness allows the inserts to maintain a sharp cutting edge and resist wear, even when machining hard materials.

2.Wear Resistance: The hardness of tungsten carbide contributes to its excellent wear resistance. This is crucial in cutting applications where the tool is exposed to abrasive forces and high temperatures.

3.Strength at High Temperatures: Tungsten carbide maintains its strength even at elevated temperatures, which is crucial in machining operations where cutting generates heat.

4.Toughness: While tungsten carbide is extremely hard, it is also brittle. To address this, carbide inserts often have a tough binder material (usually cobalt) added to improve toughness and resistance to fracturing.

5.Chemical Stability: Tungsten carbide is chemically stable, which means it does not readily react with the materials being machined. This stability contributes to the longevity of the cutting edge.

It's important to note that the specific performance of TNMM inserts can be influenced by factors such as the coating applied to the insert, the geometry of the insert, and the machining conditions. The selection of the appropriate grade, coating, and geometry is crucial to achieving optimal performance based on the machining application and the type of material being processed.

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