Using abrasive flow machining, Extrude Hone AFM can remove recast from surfaces that include intricate passages, intersections and other features where conventional polishing methods may be difficult or inconsistent.
EDM Precision Can Create a Finishing Challenge
Electrical discharge machining is often chosen because a component requires detailed geometry or is produced from a material that is difficult to machine conventionally.
The EDM process can leave behind a thin resolidified recast layer.
If that layer must be removed, the finishing process needs to reach the EDM-produced surface without unnecessarily altering the component.
AFM provides that capability in many applications.
How Abrasive Flow Machining Removes Recast
During AFM, a polymer media containing abrasive particles is directed through the areas requiring work.
As the media moves through the component, the abrasives produce controlled material removal along the surfaces they contact.
Because the media conforms to component geometry, AFM can reach:
- Narrow internal passages
- Intersecting channels
- Cross holes
- Cavities
- Dies and molds
- Complex tooling
- Other difficult internal features
Supporting Columbus-Area Manufacturing
Central Ohio supports automotive, aerospace, medical, industrial equipment and advanced manufacturing operations with extensive precision-machining needs.
Components used in these applications can require several manufacturing processes before they meet final specifications.
When EDM creates the necessary geometry and recast removal is the next step, Extrude Hone AFM can provide specialized AFM processing.
Surface Improvement With Control
The objective is to remove the unwanted surface condition while maintaining the geometry required by the customer.
For suitable components, AFM can improve a surface from approximately 1 micron (40 Ra) toward approximately 0.1 micron (4 Ra) while preserving required workpiece geometry.
Talk to Extrude Hone AFM About Your EDM Parts
Whether you have one specialized component or a repeating production need, Extrude Hone AFM can review your drawings, specifications and finishing requirements.
Call (562) 531-2976 for an EDM recast removal quote for Columbus, OH.
FAQs
Why choose AFM for an internal EDM surface?
AFM can reach many surfaces by flowing through the component, eliminating the need to put a rigid finishing tool directly against every area requiring work.
Can Extrude Hone AFM determine whether my part is suitable?
Yes. Component geometry, material and required finish can be reviewed to determine whether AFM is an appropriate process.
Does Extrude Hone AFM serve Columbus manufacturers?
Yes. Extrude Hone AFM provides abrasive flow machining services to manufacturers throughout the United States from its Paramount, California facility.
