For EDM recast removal in Denver, CO, Extrude Hone AFM provides abrasive flow machining capable of finishing intricate electrical discharge machined surfaces while maintaining controlled material removal.
AFM's ability to follow difficult internal geometry makes the process particularly useful for aerospace, medical, energy and precision industrial components.
Why Recast Forms During EDM
Electrical discharge machining removes material using electrical energy. Small portions of the workpiece melt during the process, and some material can resolidify on the surface.
The resulting recast layer can differ from the base material beneath it.
When a component's specifications call for removal of that affected layer, AFM can provide an effective finishing method.
Flexible Media for Complex Components
AFM uses a specially formulated polymer containing abrasive particles.
Tooling forces the media through selected areas of the component, where it performs controlled material removal on the surfaces it contacts.
Because it conforms to the passage, AFM can work on:
- Internal channels
- Intersections
- Cross holes
- Cavities
- Complex molds
- Precision dies
- Other restricted-access features
Why Denver Manufacturers Choose Specialized Finishing

For these applications, a component's surface condition can be just as important as its overall shape.
Extrude Hone AFM provides specialized AFM expertise for manufacturers that need to finish EDM surfaces without establishing a dedicated abrasive flow machining operation themselves.Controlled Surface Improvements
The AFM process can be adapted for different levels of material removal.
For suitable EDM applications, Extrude Hone AFM can improve a surface from approximately 1 micron (40 Ra) to around 0.1 micron (4 Ra) while retaining the required workpiece geometry.
Exact results depend on the component and project specifications.
Discuss Your Denver EDM Project
Send Extrude Hone AFM information about the workpiece, material, EDM surface and required finished condition.
Call (562) 531-2976 to discuss EDM recast removal and request a quote.
FAQs
Is AFM useful for aerospace EDM parts?
Yes. Complex aerospace components are among the applications that may benefit from AFM finishing.
Can the process be adjusted for different surface requirements?
Yes. Media, abrasive properties, tooling and processing conditions can be adjusted according to the application.




