Reasons for choosing cutting over grinding in carbide machining

Get Technology Company, based in Dongguan City, Guangdong Province, China, specializes in the precision machining of carbide parts and mold components. Carbide materials, known for their hardness and durability, are integral to the production of long-lasting molds and precision components. The company employs various methods such as EDM, CNC machining, and grinding to process these materials. However, there are specific reasons why cutting processes are often preferred over grinding for certain carbide components.

Advantages of Cutting Processes for Carbide Materials

1. Efficiency in Processing Time:
   • Cutting processes are generally faster compared to grinding, especially when dealing with super-hard materials like carbides with a Rockwell hardness above HRC67. This efficiency in processing time is crucial for meeting production deadlines and reducing operational costs.
2. Surface Quality and Lifespan:
   • Cutting provides smoother machining surfaces, which is critical for the longevity of the product. Smooth surfaces reduce wear and tear during use, thereby extending the lifespan of the mold components.
3. Reduction of Residual Stress:
   • Unlike grinding, cutting processes do not introduce significant residual tensile stress on the surface of the workpiece. Residual stresses can weaken the material, making it prone to failure under operational stresses. By minimizing these stresses, cutting enhances the structural integrity and durability of the carbide components.
4. High-Temperature Stress Relief:
   • For areas where grinding is necessary, Get Technology Company implements high-temperature stress relief treatments post-machining. This additional step helps in alleviating any residual stresses induced by grinding, although it adds to the processing time and cost.

Economic and Environmental Benefits

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1. Extended Component Service Life:
   • Extending the service life of carbide components not only offers better value to customers but also contributes to cost savings in the long run. Longer-lasting components reduce the frequency of replacements, thereby saving on material costs and labor.
2. Conservation of Rare Metals:
   • Carbides contain valuable rare metals such as tungsten (W) and cobalt (Co). By enhancing the lifespan of these components, the company contributes to the conservation of these scarce resources, aligning with sustainable manufacturing practices.
3. Practicality in Maintenance:
   • In many industrial applications, replacing mechanical or mold components can be time-consuming or even impractical. Using components that have enhanced stability and longevity from the outset ensures continuous production without frequent downtimes for maintenance or replacements.

Conclusion

The strategic decision by Get Technology Company to prefer cutting over grinding for processing certain carbide components is based on the efficiency, quality, and economic benefits this method offers. By choosing cutting, the company not only ensures superior quality in its products but also supports sustainable practices by extending the service life of the components and conserving valuable resources. This approach not only meets the immediate needs of their clients but also addresses broader environmental and economic concerns by reducing waste and enhancing component performance.