Gkss-forschungszentrum Geesthacht Gmbh

Ckss Forchungszentrum Geesthacht Gmbh

Alexander Von Strombeck

Jens Peter Wulfsberg

Henry Loitz

Jorge Dos Santos

Jens Von Der Wense

An apparatus is proposed for connection of workpieces using the friction stir welding method, with a shaft (') which can be driven such that it rotates and at whose end remote from the drive end of the shaft a pin-like projection () is arranged, at whose end a first stop, which is formed by a first shoulder (), is arranged, with the first shoulder having a diameter which is larger than the diameter of the pin-like projection (), and with a second stop (&#x2032;), which is formed from a second shoulder and is arranged such that the workpieces () to be connected can be enclosed between the stops (&#x2032;), in that at least one of the stops can be moved translationally in order to enclose the workpieces () with a predetermined force in the direction of the other stop. The apparatus () is in this case designed such that the second shoulder () or the second stop is designed such that it can be rotated, and the first and the second shoulder () or the first and the second stop are designed such that they can be rotated in the opposite sense.

Apparatus for connection of workpieces using the friction stir welding method

In a device for butt joining workpieces by friction stir welding along a connecting area, including a shaft having a driven end and, at the opposite end, a pin-like projection to be disposed in the connecting area of the workpieces, whereby, upon rotation of the shaft, the workpiece material in contact with the pin-like projection is plasticized, first and second stops with first and second shoulders are provided on the device and disposed at opposite sides of the workpieces and at least one of the stops is movable relative to the other and biased toward the other with a controllable force for engaging the workpieces between the shoulders of the stops during the friction stir welding procedure.

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Hamburg, Germany

Alexander Von Strombeck