Industrial Technologies
Welding – Friction Stir
Idaho National Laboratory
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Friction welding that uses a contact rotating tool creates frictional heating of an adjacent work piece. The process employs a mixer where the two pieces touch, an area called the plastic zone, to avoid the undesirable joining (e.g. alloying) of the two work pieces.
DescriptionFirst, a material-forming tool is used which is designed with a shank and shoulder that can release to engage the shank portion. A pin can be released to engage the shoulder portion, but also opens a passageway allowing a source of a material to flow in relation to the pin. A mixture of materials is created by placing the “material B” into contact with “material A” and using the tool to plastically deform the “material A” to form a novel material having characteristics different from the original materials.
Benefits- Allows for welding with no alloying effects
- Forms a material that has different characteristics from the original
Applications and IndustriesFriction stir, friction welding, friction welding tool, welding
Patents and Patent ApplicationsID Number |
Title and Abstract | Primary Lab |
Date |
|---|---|---|---|
Patent 7,357,292 |
Friction stir welding tool
A friction stir welding tool is described and which includes a shank portion; a shoulder portion which is releasably engageable with the shank portion; and a pin which is releasably engageable with the shoulder portion. |
Idaho National Laboratory | 04/15/2008
Issued |
|
Patent 7,597,236 |
Method for forming materials
A material-forming tool and a method for forming a material are described including a shank portion; a shoulder portion that releasably engages the shank portion; a pin that releasably engages the shoulder portion, wherein the pin defines a passageway; and a source of a material coupled in material flowing relation relative to the pin and wherein the material-forming tool is utilized in methodology that includes providing a first material; providing a second material, and placing the second material into contact with the first material; and locally plastically deforming the first material with the material-forming tool so as mix the first material and second material together to form a resulting material having characteristics different from the respective first and second materials. |
Idaho National Laboratory | 10/06/2009
Issued |
| Technology ID | Development Stage | Availability | Published | Last Updated |
|---|---|---|---|---|
| 7357292, 7597236 | Production | Available | 09/04/2012 | 09/04/2012 |
