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Why does the diamond grinding wheel burn the workpiece?

Publish Date 2023-05-29
Why does the diamond grinding wheel burn the workpiece?

Diamond grinding wheels are widely used in various industries for grinding and polishing hard materials. However, sometimes they may cause problems such as burning the workpiece surface, which affects the quality and efficiency of the grinding process. In this blog post, we will explore some of the possible reasons why diamond grinding wheels burn the workpiece and how to prevent or solve them.

One of the main reasons why diamond grinding wheels burn the workpiece is that the grinding heat is too high. The grinding heat is generated by the friction between the wheel and the workpiece, and it depends on several factors such as the wheel speed, the workpiece speed, the feed rate, the depth of cut, and the coolant. If any of these factors are too high or too low, they may cause excessive grinding heat and cause thermal damage to the workpiece surface.

Another reason why diamond grinding wheels burn the workpiece is that the wheel is too blunt or clogged. When the wheel is blunt, it means that the abrasive grains have lost their sharpness and cutting ability, and they only rub against the workpiece instead of cutting it. This increases the grinding force and heat, and reduces the material removal rate. When the wheel is clogged, it means that the chips or debris from the workpiece are stuck in between the abrasive grains, blocking their contact with the workpiece. This also increases the grinding force and heat, and reduces the material removal rate.

To prevent or solve these problems, there are some measures that can be taken:

- Choose a suitable diamond grinding wheel for your application. Different types of diamond grinding wheels have different characteristics such as hardness, grit size, bond type, and shape. You should select a wheel that matches your workpiece material, shape, and size.
- Adjust the grinding parameters according to your specific situation. You should optimize your wheel speed, workpiece speed, feed rate, depth of cut, and coolant to achieve a balance between efficiency and quality. You should also avoid sudden changes in these parameters during the grinding process.
- Dress and clean your diamond grinding wheel regularly. Dressing is a process of removing the worn or dull abrasive grains from the wheel surface and exposing new sharp ones. Cleaning is a process of removing the chips or debris from the wheel surface and preventing clogging. Both dressing and cleaning can improve the performance and life span of your diamond grinding wheel.



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