Friction stir welding tool

Details Friction stir welding tool Friction stir welding tool

B - Operations, Transporting

23

K

B23K 20/12 (2006.01)

Patent

CA 2595957

A friction stir welding tool (2) is used in welding structures. The tool (2) comprises a shoulder (4) and a probe (6) extending from the shoulder. The probe has at least three sections (8a, 8b, 8c) equiangularly arranged around the longitudinal axis of the probe, each section comprising at least three contiguously arranged flats (8) arranged about the axis (12) of the probe (6) . The flats (8) are so arranged that the normal axes of the flats converge in a direction towards the axis (12) of the probe thereby resulting in the sections each having a generally convex shape. The probe (6) also includes a threaded portion (10a, 10b, 10c) disposed between each pair of adjacent generally convexly shaped unthreaded sections (8a, 8b, 8c).

Outil de soudage par friction malaxage (2) utilisé pour souder des structures. L'outil (2) comprend un épaulement (4) et une sonde (6) s'étendant à partir de l'épaulement. La sonde présente au moins trois sections (8a, 8b, 8c) disposées de manière équiangulaire autour de l'axe longitudinal de la sonde, chaque section comportant au moins trois méplats (8) agencés de façon contiguë et disposés autour de l'axe (12) de la sonde (6) . Les méplats (8) sont agencés de telle manière que leurs normales convergent en direction de l'axe (12) de la sonde, ce qui confère à chacune des sections une forme globalement convexe. La sonde (6) comprend également une partie filetée (10a, 10b, 10c) disposée entre chaque paire de sections (8a, 8b, 8c) adjacentes non filetées et de forme globalement convexe.

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