Carbide Milling Insert

Carbide milling inserts are used for precision machining in a variety of applications. They can be formed from several different materials. The shape, grade, and composition of the material affect their performance and durability. Understanding these factors can improve productivity and reduce costs.

A solid carbide insert is used for high speed machining on cast iron, plastics, and other non-ferrous metals. It has a higher rigidity than high-speed steel. In addition, it is very heat resistant.

To maximize the strength and toughness of the insert, manufacturers apply a gradient technique. This method increases the percentage of CO in the outer layer of the insert. The extra CO gives the insert a "bumper" to help it take a beating without breaking.

Another coating technique is Inveio(r). This coating helps the cutting edge to stay in shape for longer periods of time. It also enhances the wear resistance.

Another coating technique is physical vapor deposition. This process creates thinner layers than CVD. The second coating is aluminum oxide. Aluminum oxide protects the insert from high temperatures.

Lastly, a coating with a high concentration of aluminum oxide can protect the insert from crater wear. Crater wear occurs when the metal from the workpiece chippings clings to the insert. These cracks can be prevented by using high pressure coolant systems.

Choosing the right carbide insert is important to the overall performance of a machine. Incorrect selection can cause damage to the tool and the workpiece.

The micro-geometry of the insert is one of the most important factors affecting its performance. Advanced processes can control this and result in significant improvements in insert life.

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