The cutting performance optimization and testing method of cemented carbide blades are important links to ensure their excellent performance in practical applications. By continuously optimizing the cutting performance, the processing efficiency can be improved, the tool life can be extended, and the workpiece quality can be improved. The following is a detailed introduction to the cutting performance optimization and test methods of cemented carbide blades.

Cutting performance optimization of carbide inserts

1. Material composition optimization

Tungsten (W) content: An appropriate increase in the content of tungsten can improve the hardness and wear resistance of cemented carbide.

Cobalt (Co) content: Cobalt as a bonding phase, increasing its content can improve the toughness of the material, but will reduce the hardness, the need for balance.

Additives: Adding titanium carbide (TiC), tantalum carbide (TaC) and other reinforcing phases can further improve the overall performance of the blade.

2. Cutting edge design

Edge passivation: Through micro-passivation treatment, reduce the edge micro-cracks, improve durability.

Cutting edge Angle: Optimize geometric parameters such as front Angle, back Angle and side Angle to adapt to different processing conditions and materials.

3. Surface coating technology

PVD (physical vapor deposition) coating: such as TiN, TiAlN and other coatings, can improve the wear resistance and oxidation resistance of the blade.

CVD (Chemical vapor deposition) coatings: such as TiC, Al2O3 and other coatings, can provide higher surface hardness and heat resistance.

4. Heat treatment process

Sintering process: Improve the density and mechanical properties of cemented carbide by optimizing the sintering temperature and time.

Heat treatment: Appropriate heat treatment process, such as annealing, quenching, etc., can improve the internal structure of the blade and improve the overall performance.

Test method for cutting performance of carbide inserts

1. Cutting test

Cutting force test: The cutting force measuring device (such as power table) is used to measure the main cutting force, feed force and back force generated during the cutting process.

Cutting temperature test: Use a thermocouple or infrared thermometer to measure the temperature change in the cutting zone and evaluate the heat resistance of the blade.

Surface roughness test: The roughness meter is used to measure the surface roughness of the machined workpiece and evaluate the machining quality of the blade.

Tool wear test: Observe and record the wear of the front and back surfaces of the tool during the cutting process through a microscope to evaluate the wear resistance and life of the blade.

2. Laboratory testing

Hardness test: The hardness of the blade material is measured by the Vickers hardness tester or Rockwell hardness tester to evaluate its wear resistance.

Microstructure analysis: Scanning electron microscope (SEM) is used to observe the microstructure of the blade and analyze its composition and uniformity.

X-ray diffraction (XRD) : Used to analyze the crystal structure and phase composition of the blade material and evaluate the stability of the material.

3. Performance simulation

Finite Element Analysis (FEA) : Computer simulation of the stress, strain and temperature field distribution during cutting to predict the performance of the blade.

Simulation software: Use professional cutting simulation software (such as DEFORM, AdvantEdge) to simulate the actual cutting process and optimize the blade design and machining parameters.

Conclusion

The cutting performance optimization of cemented carbide blades needs to consider many factors such as material composition, geometric design, surface coating and heat treatment process. Through the scientific test method, the cutting performance of the blade can be accurately evaluated and the optimization work can be guided. Reasonable optimization and testing can not only improve the cutting efficiency and life of the blade, but also improve the processing quality, providing strong support for the development of the manufacturing industry.