Abrasive Flow Machining

On projects large or small, we use abrasive flow machining (AFM) for deburring and polishing any size parts with intricate or complex internal shapes.

Versatile, Efficient, Effective and Flawless

We use various media and precise flow rates to produce the results that meet your technical specifications. The process handles various parts requiring simultaneous machining, deburring, and polishing.

Applications of Abrasive Flow Machining

Deburring
Internal radiusing
Surface stress relief
Polishing
Geometry optimization

Other Services

FAQs

Abrasive flow machining (AFM) may also be called abrasive flow deburring, abrasive flow grinding, and extrusion honing.

Abrasive flow machining is especially suited for deburring and polishing complicated and intricate metal parts with areas inaccessible with other deburring methods.

Several factors impact the results of abrasive flow machining, including:

fluid viscosity
media flow rate
particle density and hardness
substrate hardness
abrasive particle size
abrasive concentration

AFM services offer the following benefits:

Process efficiency
Versatility
Precision-quality
Repeatability
Enhanced component
performance
Customizability

Abrasive flow machining provides benefits to industries including:

Aerospace
Food processing
Automotive
Hydraulics
Medical
Electronics
Firearms

Yes, Higher viscosity media is used for uniformly abrading the walls of large passages. Lower viscosity media is generally appropriate for radiusing edges and for processing small areas.

Surface Roughness Conversion Chart
Ra (micrometers)	Ra (microinches)	RMS	CLA (N)	Rt	N	Cut-off Length (in)	Cut-off Length (mm)
0.025	1	1.1	1	.3	1	0.003	0.08
0.05	2	2.2	2	0.5	2	0.01	0.25
.1	4	4.4	4	0.8	3	0.01	0.25
.2	8	8.8	8	1.2	4	0.01	0.25
0.4	1.6	17.6	16	2.0	5	0.01	0.25
0.8	32	32.5	32	4.0	6	0.03	0.8
1.6	63	64.3	53	8.0	7	0.03	0.8
3.2	125	137.5	125	13	8	0.1	2.5
6.3	250	275	250	25	9	0.1	2.5
12.5	500	550	500	50	10	0.1	2.5
25.0	1000	1100	1000	100	11	0.3	8.0
50.0	2000	2200	2000	200	12	0.3	8.0
Ra = Roughness Average in micrometers or microinches. RMS = Root Mean Square in microinches. CLA = Center Line Average in microinches. Rt = Roughness Total in microns N = New ISO (grade) scale numbers. Cut-off Length = Length required for sample.