May 03, 2024

Single crystal diamond tool grinding: many factors affecting quality (3)

The deflection angle of the grinding quality impact <br> <br> w deflection angle is the angle between the actual direction of the polishing surface is polished with a diamond grinding best direction. For the (110) plane, when grinding in the best grinding direction (w=0°), the diamond surface is very smooth and the surface has large undulations, because in the best grinding direction, the unevenness of the grinding disc surface is in the diamond. The surface is fully re-encoded; when w=45°, the diamond surface is still quite smooth, but the degree of undulation is small, and fine groove marks appear; when w=60°, the diamond surface produces dense deep grooves, and the polishing rate changes. It is very low; in the most difficult direction, the diamond surface is filled with pits and the grinding rate is essentially zero. The area of ​​w<45° can be considered as a good grinding direction, and a smooth surface can be obtained. For the (100) plane, the well-ground area is w < 15°.

In the well-ground area, the sawtooth tends to zero. When w>45°, a large collapse occurs rapidly on the blade. Similar results were obtained for the (100) face.

The effect of the deflection angle on the surface quality can also be used to determine the best grinding direction of the diamond, because the diamond surface is bright and has large undulations when ground in the best grinding direction.

In summary, the grinding quality of diamond tools is quite sensitive to a variety of processing conditions, especially when grinding diamond tools with small blade wedge angles (such as ophthalmic scalpels, fiber knives, and bio-dissection knives). Therefore, it is necessary to carefully treat the surface of the grinding disc during grinding, use the fine diamond grinding powder to find the best grinding direction, and use a grinding machine with high precision, smooth operation and low vibration (such as an aerostatic bearing grinding machine). When the various processing conditions are in a satisfactory state, high-quality diamond tools with no chipping and small sawtooth edge can be ground.

Previous page

Aluminum-Clad Wood Window

Aluminum Wooden Window,Aluminium Window,Wooden Window

Woodwin Door & Window Industries Co., Ltd , http://www.chalwindow.com