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Abrasive Flow Machining (AFM) is an advanced non-traditional machining process used for precision finishing, deburring, and edge radiusing of complex internal and external geometries. It is particularly effective for components with intricate passages, such as fuel injectors, turbine blades, and medical implants, where conventional machining methods are inadequate.Working Principle:AFM utilizes a viscous, abrasive-laden media (typically a polymer carrier mixed with silicon carbide or diamond particles) that is extruded through the workpiece under controlled pressure. The media flows back and forth or in a unidirectional motion, allowing the abrasive particles to remove material through micro-cutting and erosion. This action smooths surfaces, removes burrs, and improves edge uniformity.Key Components:
1. Abrasive Media: A flexible polymer base with embedded abrasive grits (size and concentration tailored to the application).  
2. Hydraulic System: Generates the pressure (1–15 MPa) to force the media through the workpiece.  
3. Fixturing: Custom tooling secures the workpiece and directs media flow.  
4. Control System: Regulates pressure, flow rate, and cycle time for repeatability.  
Advantages:  Complex Geometries: Finishes hard-to-reach internal channels and irregular contours.No Thermal Damage: Cold process avoids heat-affected zones (HAZ).  Superior Finish: Achieves surface roughness as low as 0.05 µm Ra.Automation-Friendly: Suitable for high-volume production.AFM excels where traditional methods fail, offering precision without mechanical or thermal distortion, making it vital for high-performance industries.
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!