Abrasive flow machining is particularly effective where the surface requiring recast removal is located inside an intricate passage or feature that cannot easily be reached with conventional finishing equipment.
Why EDM Components May Require Recast Removal
EDM enables manufacturers to machine hard materials and create detailed features using electrical discharges. During the process, material can melt and resolidify on the workpiece, producing the EDM recast layer.
Where component specifications require removal of this altered surface, AFM provides a controlled method for reaching it.
How AFM Works on EDM Surfaces
Extrude Hone AFM directs abrasive-filled polymer media through the section of the component requiring work.
The media acts like a flexible finishing tool. Because it conforms to the shape of the pathway, it can contact surfaces within:
- Internal passages
- Intersecting holes
- Restricted openings
- Complex cavities
- Precision molds
- Dies and tooling
The process is adjusted to the material, geometry and required finish.
Precise Material Removal
Effective EDM recast removal requires control. Excessive removal could compromise the very geometry EDM was selected to create.
Extrude Hone AFM develops the AFM process to improve the specified surface while maintaining required dimensions and shape.For appropriate applications, AFM can improve an approximately 1 micron (40 Ra) surface finish to around 0.1 micron (4 Ra).
Applications for New York Manufacturers
Companies in the New York metropolitan region work across medical technology, aerospace, electronics, precision manufacturing and specialized industrial applications.
Many of these industries depend on components that are small, intricate or produced from difficult-to-machine materials.
AFM offers a way to finish those complex EDM-produced features without requiring direct line-of-sight access with a conventional tool.
Discuss Your Project
Whether your project involves a specialized prototype or repeat production, Extrude Hone AFM can review the component and determine whether AFM is suitable for the required EDM recast removal.
Call (562) 531-2976 for a quote.
FAQs
Can AFM reach surfaces that can't be seen from outside the part?
Often, yes. AFM is specifically useful for internal passages and other areas that can be reached by properly directed media even when they cannot be reached with a hand tool.
Can it improve the surface at the same time recast is removed?
Yes. Removal of the recast layer can be accompanied by controlled surface-finish improvement.
Does Extrude Hone AFM serve New York City customers?
Yes. Extrude Hone AFM serves customers nationwide from its California facility.
