Customer Case: Optimization of PCD Scissors Grinding

Problem Analysis

The customer was concerned whether the equipment was outdated or unsuitable for processing this type of material. After analysis, it was determined that the equipment does not need replacement; the problem lies in the required precision for processing the flat surfaces, which puts heavy demands on the machine.

Solution

To improve grinding efficiency and solve the issue of unsatisfactory grinding results, the following measures were recommended:

• Process Adjustment:
  • Use resin bond diamond grinding wheels for the pure carbide surfaces to improve surface finish and avoid line marks.
  • For PCD + carbide surfaces, a vitrified bond diamond grinding wheel is recommended. As the PCD part showed very little grinding, switching to a coarser grain size such as D91 or D76 is suggested for rough grinding, which will significantly enhance efficiency.

• Optimization of Grinding Results:

  While the dull appearance of the carbide surface isn't a major issue, improving surface brightness could be desirable. If possible, choosing the right grain size and bond type can improve the finish, achieving a more polished result.

Conclusion

By adjusting the grinding wheels and processes, grinding efficiency for PCD scissors can be greatly improved without the need for equipment replacement. The customer can now achieve better results by using coarser vitrified bond wheels and resin bond wheels for specific materials. This optimized solution serves as a valuable reference for grinding multi-material workpieces, especially when dealing with complex material combinations.