| 摘要 |
A tool assembly which is particularly suitable for friction stir welding applications. The tool assembly includes a holder having an axis and one end adapted to be rotatably driven by a rotary drive mechanism about the holder axis. A tool having an axis is also provided and includes a tool tip at one end. A fastener detachably and coaxially secures the holder and tool together. This fastener includes a first part secured to the second end of the holder and a second part secured to the second end of the tool.
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