There are differences between granulated diamond grinding fluid and nano-diamond grinding fluid in the following aspects:
Granulated Diamond Grinding Fluid: It usually uses agglomerated diamond granulated micro-powder as the abrasive. This granulated micro-powder is formed by the aggregation of multiple diamond particles, with a certain particle size and shape. It shows good self-sharpness during the grinding process, continuously shedding and releasing new grinding layers to maintain better grinding performance.
Nano-Diamond Grinding Fluid: The abrasive is nano-scale diamond micro-powder. Nano-diamonds have spherical shapes and fine particle sizes, typically ranging from tens to hundreds of nanometers. Due to their extremely fine particles, they can achieve ultra-precise polishing effects.
Granulated Diamond Grinding Fluid: When grinding hard materials such as sapphire and superhard alloys, it has high cutting force, enabling rapid material removal, and the surface of the ground material is relatively fine. However, compared with nano-diamond grinding fluid, the precision and smoothness of the processed surface may be slightly inferior.
Nano-Diamond Grinding Fluid: It has good dispersion stability, maintaining long-term non-sedimentation, and the powder does not agglomerate in the dispersion liquid<sup>1</sup>. It can make the surface roughness of the polished surface less than 0.2nm, achieving ultra-precise polishing effects, suitable for polishing processing of optical components, semiconductor chips, etc., which require extremely high surface quality.
Granulated Diamond Grinding Fluid: Mainly used for high-efficiency grinding of hard materials, such as thinning of sapphire substrates and edge grinding of hard alloy cutters. It is suitable for occasions where high processing efficiency and certain surface quality are required.
Nano-Diamond Grinding Fluid: Widely applied in the ultra-precision polishing process of hard materials, such as wafer polishing in the semiconductor industry and high-precision polishing of optical lenses. In these fields, extremely high surface flatness and smoothness are required to meet the high-performance requirements of devices.
Note: The original text mentions relevant properties of nano-diamond grinding fluid.
