Diamond Grinding Wheel Instructions
Diamond grinding wheels are very durable, possessing "indestructible" characteristics and powerful grinding capabilities. However, some precautions should still be taken during use to extend the service life of the diamond grinding wheel.
1. Diamond grinding wheels are valuable tools and should only be used for processing high-hardness materials, not for grinding ordinary steel or other soft materials.
2. After installing the flange on the diamond grinding wheel, dynamic balancing must be performed before use. It is important to note that the flange should not be removed until the grinding wheel is completely worn out.
3. The grinding machine used with the diamond grinding wheel should have good rigidity, and the spindle should have high precision (radial runout not greater than 0.01mm), and allow for fine lateral feed.
4. Appropriate grinding parameters must be selected. The following data can be used as a reference:
(1) Grinding wheel linear speed:
Metal bond: ① 10~15 m/s (dry grinding), ② 20~35 m/s (wet grinding)
Resin bond: ① 15~30 m/s (dry grinding), ② 25~40 m/s (wet grinding)
(2) Workpiece linear speed:
Generally 10~15 m/min.
Generally 10~15 m/min.
(3) Grinding depth:
The grinding depth should be small; otherwise, the grinding wheel will wear out quickly, and the grinding efficiency may not be high. Generally, 0.005~0.01 mm/stroke is suitable. The finer the abrasive grain size, the smaller the grinding depth should be, especially when no coolant is used.
The grinding depth should be small; otherwise, the grinding wheel will wear out quickly, and the grinding efficiency may not be high. Generally, 0.005~0.01 mm/stroke is suitable. The finer the abrasive grain size, the smaller the grinding depth should be, especially when no coolant is used.
(4) Longitudinal feed speed:
Generally 10~15 m/min.
Generally 10~15 m/min.
5. Coolant should be used as much as possible during grinding. This can not only improve grinding efficiency and quality but also reduce grinding wheel wear. Commonly used coolants include kerosene, light diesel oil, and light lubricating oil; kerosene is generally preferred.
6. Before a new diamond grinding wheel is put into use, it needs to be trued to achieve the correct shape (outer diameter roundness and end face flatness). The truing method may include grinding with a silicon carbide grinding wheel, or manual grinding on a flat metal or glass plate using silicon carbide abrasive (for truing the end face of the grinding wheel).
