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What is abrasive flow machining?
Abrasive Flow Machining (AFM), also known as abrasive flow deburing or extrude honing, is a process that finishesinterior surfaces. Developed in the 1960's, the process involves utilizing pressure or hydraulics to pass an abrasiveladen viscoelastic substance back and forth through a work piece. The abrasive laden fluid often has theconsistency of putty and as it is pushed through the work piece, it smooths rough surfaces. As a result, the interior
surface is polished and deburred.
Abrasive Flow Machining is often used when hand polishing or deburring is either impossible or would provide
inconsistent results The process is utilized by a variety of industries, including automotive, medical, aerospace,andmore. Typical applications for abrasive flow machining include edge radius generation, deburring, surface polishingpolishing complex shapes to mirror finishes, removing thermal recast layers,and improving gas or liquid flow path
in fittings and valves.
Improve surface finishes fast with our precision AFM process.
the world's manufacturers of precision through passage dies, due to several factors:
Extrude Honing AFM also has revolutionized the finishing of precision dies. AFM is now used by more than half of The process polishes surfaces in the direction of flow, producing a better quality and longer lasting die with a
uniform surface and gently radiused edgesMultiple passages can be processed simultaneouslythan traditional methods
The die passage itself provides the restriction for media flow, typically eliminating fixture requirements
Surface finishes are improved by 90 percent with minimal dimensional change
The uniformity of stock removal permits accurate "sizing" of undersized die passages
Jobs requiring hours of highly skilled hand polishing are processed automatically in far less processing time
Our precision processes can meet even the most stringent aerospace manufacturing specs.
Extrude Hone AFM was originally invented for deburring and finishing critical aircraft hydraulic and fuel systemcomponents. Today, aerospace manufacturing specifications require more parts to be abrasive flow machined thanever before. We commonly provide AFM services for:
Improving airfoil surface conditions on compressor and turbine section components following profile milling,casting, EDM, or ECM operations
Edge finishing of holes and attachment features to improve the mechanical fatigue strength of blades, disks,
hubs, and shafts with controlled, polished true radius edges
Precisely removing thermal recast layers left by laser or EDM operations
Adjusting air flow resistance of blades, vanes, combustion liners, nozzles, and diffusers
Finishing accessory parts, such as fuel spray nozzles, fuel control bodies, and bearing components
Reworking components to remove coke and carbon deposits, improve surface integrity, or enhance eddy current readings
WHY DEBURRING IS CRITICAL FOR HIGHPERFORMANCE METAL COMPONENTS
Modern manufacturing demands parts that perform consistently under pressure, heat, and continuous mechanicalstress. Even the smallest imperfection in a metal component can affect how that part functions within a larger sys-tem During machining processes such as drilling, milling, and cutting, small fragments of material called burrs canform along edges and inside passages.
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