Q: What actions should be taken when issues arise with superhard material tools during production trials? + A: If a problem is detected, the machining operations must be halted immediately, followed by a thorough inspection of the tool. Once the root cause is identified, appropriate corrective actions should be implemented, such as tool replacement, adjustment of machining parameters, or executing tool maintenance and grinding. Q: What aspects should be considered when maintaining and regrinding superhard material tools? + A: During maintenance, it is crucial to clean the tools, inspect them for damage, and store them in a dry environment to prevent rusting. When regrinding, one must select suitable abrasive tools and grinders, adhering to the specified procedures and angles to avoid compromising the tool’s structure and performance. Q: What methods can be employed to prolong the service life of superhard material tools? + A: Utilizing correct cutting parameters, maintaining consistent cutting conditions, and selecting the right coolant can contribute to enhancing tool longevity. Regular maintenance and diligent care are also vital. Q: What criteria should be used to assess the wear degree of superhard material tools? + A: Visual inspection, using a magnifying glass or microscope, can reveal any signs of wear, chips, or cracks on the tool tip, cutting edge, and other parts. Changes in performance, such as increased cutting force or diminished surface quality, also serve as indicators of tool wear. Q: Why do superhard material tools experience wear during use? + A: Even superhard material tools are subject to wear from continuous friction with the workpiece material, impact forces, cutting temperatures, and various other factors. Proper utilization and maintenance can mitigate the wear rate. Q: What preparations should be undertaken before employing superhard material tools? + A: Prior to use, a thorough inspection of the tool is necessary to confirm that there are no damages or defects; during installation, ensure it is securely fixed to prevent vibrations; choose appropriate cutting parameters based on the workpiece materials and requirements, including rotational speed, feed rate, cutting depth, etc. Q: How to select the appropriate superhard material tools? + A: When opting for superhard material tools, consider factors such as the workpiece material, precision requirements, processing speed, and cutting forces. Different applications and processing conditions necessitate varying demands on the tools' hardness, wear resistance, toughness, and additional characteristics. Q: What are the primary types of superhard material tools? + A: Superhard material tools include primarily diamond tools and cubic boron nitride (CBN) tools. Diamond tools are utilized for processing non-ferrous metals and non-metallic materials, whereas CBN tools are suited for working with hard materials like cemented carbide, high-speed steel, and heat-treated steel.