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US 2016/0243645 A1Published application
Friction Stir Processing Tool and Friction Stir Processing Method For a Workpiece Having Surface Coating
AssigneeAirbus Defence and Space GmbH
InventorsJuergen SILVANUS, Tommy BRUNZEL
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Abstract
A friction stir processing tool having a shoulder, which is implemented on a body, and which has a friction surface for pressing against at least one workpiece at least partially provided with a surface coating, and a friction reducing unit for reducing the friction resistance between the surface coating and the friction surface.
Claims5
1-11. (canceled)
A friction stir processing method for carrying out a friction stir process on at least one workpiece provided with a surface coating, comprising:
- performing a friction stir processing using a friction stir processing tool, which comprises
- a body;
- a shoulder disposed on the body of the friction stir processing tool, wherein the shoulder includes
- a friction surface configured to contact at least one workpiece, wherein the workpiece is at least partially provided with a surface coating;
- and
- a friction reducing unit configured to reduce a friction resistance between the surface coating and the friction surface,
- wherein the friction surface comprises a first surface region and a second surface region, and the friction reducing unit is arranged such that the friction resistance on the first surface region of the friction surface is less than the friction resistance on the second surface region of the friction surface, and
- wherein the shoulder is selected or implemented depending on the surface coating such that, as the shoulder is pressed against the surface coating and moved on the surface coating in an advance direction during the friction stir process, it does not damage or at least does not completely abrade or penetrate the surface coating.
5 more elements
Dependencies are inferred from the claim text.