1. The grinding wheel is blocked. After grinding a large number of workpieces, the grinding wheel turns black, indicating that the debris during grinding did not fall off in time and adhered to the surface of the grinding wheel. Therefore, the surface of the grinding wheel may be blocked by the grinding debris. At this time, it is necessary to use an oil stone or a dressing wheel to the diamond grinding wheel.
2. The temperature of the grinding wheel is too high. During the grinding process, the coolant is used less, and the grinding heat increases. At this time, it is necessary to increase the amount of coolant to reduce the temperature of the grinding wheel and the workpiece.
3. The feed amount is too large. The grinding wheel feed rate is large, the cutting thickness of a single abrasive grain increases, and the heat generated increases, which increases the grinding temperature and also causes the grinding wheel to turn black. It is necessary to appropriately reduce the grinding wheel feed rate.
4. The hardness of the grinding wheel itself is too high. The grinding wheel is selected to be too hard, and the blunt abrasive grains are not easy to fall off. The workpiece material is PCD. The harder the workpiece material, the softer the hardness of the grinding wheel should be selected to make the blunt abrasive particles fall off quickly, so that the grinding wheel always keeps sharp abrasive particles at work to avoid workpiece burns and debris from blocking the grinding wheel.
---EDITOR: Cindy Chhen
---POST: Doris Hu
Moresuperhard provide quality cnc diamond grinding wheel for grinding rotary cutting tools.1A1,1V1,11V9,12V9 abrasives grinding wheel suit for anca,walter,ewag cnc grinding machine.1. Suitable for high-efficiency grinding processing with rapid feed.2. Good wear resistance and shape retention.3. It has good self-sharpening properties, generates less heat during grinding, reduces burns on the workpiece, and meets the high-precision requirements of the tool.4. No clogging, easy to trim, extend the trimming cycle and reduce processing costs. 5. The cutting edge quality of the grinding workpiece is consistent and the smoothness is high, which ensures stable quality when processing downstream products.
At present, the main diamond processing methods include mechanical polishing, thermochemical polishing, tribochemical polishing, laser polishing, ion beam polishing and chemical mechanical polishing.Due to the anisotropy of diamond, "hard" and "soft" polishing directions have completely different material removal rates.Experimental results show that atomic-level roughness values can be obtained in a shorter time by mechanical polishing in the crystallographic directions <100> and <110> or in another direction deviating from <110> at an angle not exceeding 20°.
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