METHOD AND APPARATUS FOR LOCALLY CLAMPING COMPONENTS THAT ARE TO BE JOINED BY FRICTION STIR WELDING

WIPO Patent Application WO2004091839

A3

The apparatus (50) includes a friction stir welding tool (100), a local clamping means (200), and an interface (300) that joins the tool (100) and the local clamping means (200). The local clamping means (200) is in close proximity to the at least one sidewall (130) of the tool (100) and has a housing (210) and a plurality of contact devices (220). The local clamping means (200) transfers a clamping force to the first and the second components (C1, C2) and holds them firmly in place during welding. The local clamping means (200) includes a plurality of contact devices (220) that may take the form of casters, rollers (222), and ball bearings (224). The location of the contact devices (220) is significant as external clamping is greatly reduced, and often eliminated, as the contact devices (220) are brought into close proximity to the area of the weld.

JPH0753325	[Title of the Invention] A steam turbine and a method for manufacturing the same.
JPH1088954	EXTENSION ROD FOR ROTARY PERCUSSION DRILL, AND MANUFACTURE AND RECYCLE THEREOF
WO/2018/138239	WELDING ELEMENT AND WELDING METHOD FOR CONNECTING A WELDING ELEMENT TO A WORKPIECE

TRAPP TIMOTHY (US)
STOTLER TIMOTHY (US)

PCT/US2004/011149

December 09, 2004

April 09, 2004

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EDISON WELDING INST (US)
TRAPP TIMOTHY (US)
STOTLER TIMOTHY (US)

B23K20/12; B23K; (IPC1-7): B23K20/12

WO1998045080A1

1998-10-15

US6302315B1	2001-10-16
US6450395B1	2002-09-17
US6604667B2	2003-08-12

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