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CASF : Cavitation Abrasive Surface Finishing Technology

CASF装置の外観と施工イメージ

Cavitation Abrasive Surface Finishing CASF

This is a processing technology that removes abnormal layers from the surface of objects, performs surface smoothing, and imparting compressive stress due to the cavitation effect by injecting high-pressure water in a tank filled with abrasive suspension.

For example, in the process of layered molding of parts produced by a metal 3D printer, abnormal layers such as poor melting and cavities frequently occur from the surface layer to a depth of approximately 150 μm.

With CASF processing technology, abnormal layers can be removed, surface smoothing treatment and compressive stress can be applied to increase fatigue strength and improve fatigue life.

About

Introduction video

Features

Removal of abnormal layers from metal additive manufacturing parts (AM parts)

Metal additive manufacturing parts (AM parts) have abnormal layers, such as poor fusion and microcracks, that happen at positions approximately 150 μm from the surface during the manufacturing process.

If abnormal layers are present, there is a risk of component breakage and insufficient fatigue strength. Additionally, any remaining unmelted metal powder on the surface increases the frictional resistance of fluids.

With CASF, smoothing treatment can be performed to a position of approximately 200 μm below the surface.
By removing abnormal layers and unmelted metal powder, compressive stress can also be imparted, improving the fatigue strength of the component.

Remove the support structures from the metal additive manufacturing components (AM parts).

Remove the support structures from the metal additive manufacturing components (AM parts).

Conventionally, removal was often done manually, and post-removal polishing of the component surface was also necessary. However, with CASF, the removal of support structures and surface smoothing can be performed in a single pass.

Improve surface roughness and fatigue strength

CASF process technology improves surface roughness , fatigue strength , and fatigue life by applying compressive stress.

Can Reach Inside Diameter Surface

It is possible to reach inside diameter such as flow pipe.

The surface roughness of down-skin is also improved uniformly.

In metal additive manufacturing (AM), the surface roughness varies significantly depending on the build angle.
Particularly, the down-skin at around 45° has the roughest surface, posing challenges due to difficult access and increased effort required in post-processing.

With CASF, fluids act on all corners of AM parts, allowing for uniform surface treatment in a single operation.

CASF Main Specifications

Stroke X750, Y500, Z500 mm
Applicable workpiece size W300 × D300 × H300 mm
Controller FANUC 0i-MF Plus
Machine dimensions W1,600 × D2,700 × H2,500 mm
Machine weight 4,300 kg

* The supported work sizes are approximate. Larger work pieces may be supported depending on the shape. Please consult with our sales staff first.