Aerospace abrasive flow machining (AFM) is a finishing process that deburrs, polishes, and radiuses the internal passages and complex surfaces of aircraft and engine components. For Atlanta GA manufacturers and suppliers, Extrude Hone AFM uses AFM to improve airflow, fuel flow, surface finish, and part durability on components where failure is not an option.
Metro Atlanta supports a large network of aerospace machine shops, component suppliers, and maintenance operations. Many of the parts they produce have internal features that traditional finishing methods simply cannot reach. That is where AFM makes a difference.
Why Does Surface Finish Matter So Much in Aerospace?
Aerospace parts operate under extreme heat, pressure, vibration, and repeated load cycles. Small surface defects can have large consequences, including:
- Fatigue cracks that start at burrs, sharp edges, or rough spots
- Restricted or turbulent flow through fuel and air passages
- Loose burrs that break off and contaminate engines or hydraulic systems
- Inconsistent performance from one part to the next
Aerospace specifications often call for defined surface roughness, edge conditions, and flow rates. AFM helps manufacturers hit those targets consistently.
How Does Aerospace AFM Work?
AFM moves a viscous abrasive media back and forth through a part under controlled pressure. Custom fixturing directs the media through internal passages and across targeted surfaces. As it flows, the media removes burrs, smooths the surface, and rounds sharp edges.
Because the media conforms to the shape of each passage, it can finish:
- Long, narrow, or curved internal channels
- Intersecting holes and cross-drilled ports
- Small-diameter cooling and spray holes
- Complex airfoil and blade surfaces
Process variables such as media viscosity, abrasive grit, pressure, and cycle count are tuned for each part. That keeps results repeatable across production runs.
Which Aerospace Components Benefit From AFM?
Common aerospace applications include:
- Fuel nozzles, injectors, and spray tips
- Turbine blades, vanes, and blisks
- Hydraulic and fuel system manifolds
- Engine casings and housings with internal passages
- Cooling holes that need EDM recast removal
- 3D printed and additive manufactured parts with rough internal channels
Additive manufacturing is a fast-growing area for aerospace AFM. Printed parts often come off the machine with rough, partially fused internal surfaces. AFM can bring those passages to a smoother, more consistent finish.
What Results Can Atlanta Aerospace Manufacturers Expect?
Depending on the part and specification, AFM can help deliver:
- Improved and more uniform flow rates
- Smoother internal surface finishes
- Controlled edge radiusing for better fatigue resistance
- Removal of burrs and EDM recast in hard-to-reach areas
- Tighter part-to-part consistency across a production lot
Why Choose Extrude Hone AFM for Aerospace AFM?
Extrude Hone AFM has been advancing abrasive flow machining since 1971. We are ISO 9001:2015 certified and an ITAR registrant, which supports aerospace and defense work with strict quality and compliance requirements. We were also recently recognized by Aerospace & Defense Review as a top aerospace abrasive flow machining service.We develop tooling and process parameters around each component. Our team works with Atlanta area suppliers to meet drawing requirements and customer specifications.
Frequently Asked Questions
Can AFM be used to meet a specific flow rate?
Yes. AFM can be controlled to adjust and balance flow through passages, helping parts meet targeted flow specifications.
Is AFM suitable for production volumes?
Yes. Once tooling and parameters are set, AFM delivers repeatable results for both prototype and production quantities.
Get Aerospace AFM Support in Atlanta GA
If your aerospace components need better flow, finish, or edge quality, Extrude Hone AFM is ready to help. Call (562) 531-2976 to discuss your parts or request a quote.
