Friction stir processing method for a workpiece having surface coating
US-9475148-B2 · Oct 25, 2016 · US
High-speed friction stir welding
US8967451B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8967451-B2 |
| Application number | US-200913000469-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 9, 2009 |
| Priority date | Jul 9, 2008 |
| Publication date | Mar 3, 2015 |
| Grant date | Mar 3, 2015 |
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Abstract
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Contemplated systems and methods significantly improve friction stir welding of hard metals and particularly steel and stainless steel. Among other factors, the inventors found that high transverse velocity of the tool is critical to obtain predictable and desirable weld quality, which is preferably achieved in such materials by minimizing spindle run out. Moreover, the transverse and angular velocities are preferably selected such as to achieve a temperature in the weld that is below the phase change temperature and/or the solid state transformation point of the materials.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method of friction stir welding a first base material to a second base material where at least one of the first and second base materials comprises a steel, comprising: mounting a non-consumable tool into a spindle of a friction stir welding apparatus; operating the apparatus at a spindle run out that allows welding at a critical transverse velocity to form a weld from the first and second base materials by advancing the tool along a joint between…
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Classifications
- B23K20/1225Primary
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
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Frequently asked questions
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- What does patent US8967451B2 cover?
- Contemplated systems and methods significantly improve friction stir welding of hard metals and particularly steel and stainless steel. Among other factors, the inventors found that high transverse velocity of the tool is critical to obtain predictable and desirable weld quality, which is preferably achieved in such materials by minimizing spindle run out. Moreover, the transverse and angular v…
- Who is the assignee on this patent?
- Messer Barry, Maki Dennis, Fluor Tech Corp
- What technology area does this patent fall under?
- Primary CPC classification B23K20/1225. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Mar 03 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).