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The remarkable polishing effect of abrasive flow polishing machines isn't achieved through magic, but rather based on rigorous principles of physics and fluid mechanics. So, what exactly is the core science driving this "flexible file"? Understanding its principles will help us better utilize this technology.
The core principle can be summarized as the two-phase flow behavior of viscous abrasives. The abrasive medium consists of a viscoelastic matrix (such as a polymer) and uniformly dispersed hard abrasive grains (such as silicon carbide or diamond). Under normal conditions, this medium maintains its shape like mud, but under sufficient pressure, it can flow like a liquid.
During the polishing process, when this medium is forced through narrow channels or complex cavities formed by the workpiece and fixture, two key effects occur: wall shearing and turbulence. In areas near the workpiece wall, the abrasive flow velocity is slower, forming a strong shear layer. Within this layer, the abrasive grains perform continuous, uniform, micro-cutting on the workpiece surface, which is the primary source of the polishing effect. At abrupt changes in flow or intersections, the medium creates turbulence, acting like countless tiny brushes to clean and polish in all directions, thus solving the problems of dead corners and intersections.
Furthermore, the viscosity and flowability of the medium are adjustable. Different hardnesses, abrasive types, and concentrations can be selected for different materials and polishing requirements. This gives abrasive flow technology extremely strong process adaptability, allowing for suitable polishing solutions for everything from soft aluminum alloys to hard carbide.
It is based on these profound scientific principles that abrasive flow polishing machines can achieve precise and controllable processing. A significant portion of the equipment's R&D costs is invested in research on medium rheology and precise algorithms for pressure and flow control. These inherent technological elements collectively form the solid foundation for its market pricing.

Abrasive Flow Machine Uses Diamond Fine Powder,Silicon Carbide Powder or other Abrasives Mixed Into Polymer Elastic as a soft medium.The abrasives flow up and down through the inner holesor over the machined surface to achieve surface polishing.Especially suitable for all kinds of mould and irregular shape tiny cavities.
Abrasive flow is not only a device,but also a system engineering!It includes equipment,abrasives,tooling fixtures,and important detail design and experience,which are not only reflected in the final effect and efficiency,but also reflected in the long-term stable use,and can help customers save a lot of trial and error costs!
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