Using abrasive flow machining, Extrude Hone AFM can finish internal surfaces by directing abrasive-filled polymer media through the component.
The process is particularly valuable where conventional tools cannot reach deep passages, internal intersections, or restricted geometry.
Semiconductor Components and Surface Quality
Fabrication equipment depends on precision process components.
Valves, fittings, manifolds, and delivery-system parts may carry gases and liquids through small internal passages.
Even after accurate machining, these surfaces can retain microscopic roughness.
Potential surface issues include:
- Burrs
- Machining marks
- Cross-hole edges
- Internal cavities
- Rough transitions
- Uneven passage surfaces
Abrasive Flow Machining for Internal Finishing
AFM uses pressure to force abrasive media through the selected portion of a workpiece.
The polymer media conforms to the passage as it moves.
Abrasive particles contact raised features and gradually smooth the surface.
This can provide:
- Internal polishing
- Cross-hole deburring
- Edge conditioning
- Surface roughness improvement
- Access to curved passages
- Repeatable finishing of production parts
Southern California Semiconductor Supply Chain
San Bernardino and the Inland Empire sit within Southern California's broader electronics, semiconductor, aerospace, and advanced-manufacturing economy.
Suppliers may produce precision parts for equipment builders elsewhere in Southern California and throughout the country.
AFM can support those manufacturers when an internal component surface requires specialized post-processing.
Because Extrude Hone AFM processes parts in Paramount, Inland Empire customers also have access to this capability within Southern California.
Smoother Surfaces for High-Purity Pathways
For ultrapure flow applications, reducing surface irregularities may help minimize locations where contamination can accumulate and create a more uniform pathway.
Extrude Hone AFM's surface-finishing guidance shows that AFM can significantly improve roughness in suitable components. Representative examples include 16–18 Ra improved to 3–4 Ra and 32 Ra improved to 8 Ra or better.These values are application-dependent rather than guaranteed.
Deburring Intersecting Passages
Cross holes are frequently found in valves and fluid-control bodies.
Machining can leave an internal burr where the holes meet.
If the intersection cannot be reached directly, AFM can use the passage itself to deliver abrasive media to the feature.
This helps remove protruding material while simultaneously improving nearby surfaces.
Controlled Tooling
Extrude Hone AFM designs tooling to support the component and establish the intended media route.The fixture also protects areas where abrasive action is not desired.
This allows the process to focus on the internal features requiring treatment.
Compatible Metals
AFM can be used with aluminum, copper, bronze, titanium, Inconel, superalloys, hardened materials, and other suitable metals.
Different materials require different media and abrasive strategies.
Request San Bernardino Semiconductor Finishing
Call (562) 531-2976 to discuss semiconductor component finishing for San Bernardino, CA with Extrude Hone AFM.
FAQs
Can AFM reduce roughness in high-purity passages?
Yes. Surface-finish improvement is a central AFM capability.
Can AFM deburr internal intersections?
Yes. Cross-hole and internal passage deburring are strong uses of the process.



