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November 10, 2023
Carbide blades usually use tungsten titanium carbon series alloys, which have excellent hardness, wear resistance and impact resistance. The tungsten carbide powder in the alloy has high hardness and wear resistance, which can keep the tool tip sharp and stable and extend the service life of the tool. In addition, the tungsten carbide particle size of the alloy will also have a certain impact on the cutting effect. An alloy with a finer particle size can provide better edge quality, while an alloy with a coarser particle size is suitable for cutting materials with lower hardness.
2. Tool geometric characteristics
Parameters such as rake angle, relief angle and tool nose radius of the insert will directly affect the cutting angle and cutting force of the tool, thereby affecting the cutting ability and cutting quality of the tool. A smaller rake angle can reduce the cutting force and is suitable for cutting materials with higher hardness; a larger rake angle can improve the strength and fracture resistance of the tool and is suitable for cutting brittle materials.
3. Process parameters
Cutting speed, also called cutting linear speed, refers to the cutting speed of the tool along the surface of the workpiece. Appropriate cutting speed can keep the tool tip temperature and edge wear within a reasonable range, improving cutting quality and production efficiency. Secondly, the feed amount, also called the cutting feed rate, refers to the distance that the cutting edge cuts across the workpiece in unit time. Appropriate feed rate can maintain the stability of cutting force and improve the processing accuracy.
4. Workpiece material
Different materials have different hardness, toughness, plasticity and other properties, which will produce different requirements for parameters such as cutting angle, cutting force and cutting temperature of the tool. For example, for materials with higher hardness, a smaller rake angle and a suitable cutting speed need to be selected to improve the cutting effect and cutting quality of the tool. For brittle materials, it is necessary to choose a larger clearance angle and a suitable cutting speed to improve the tool's fracture resistance and the smoothness of the cutting plane.