Method for measuring loads on a friction stir welding tool

Details Method for measuring loads on a friction stir welding tool Method for measuring loads on a friction stir welding tool

2009-04-14

2009-11-17

Ward, Jessica L (Department: 1793)

Metal fusion bonding

Process

Using dynamic frictional energy

C228S002100, C228S114500, C228S103000

Reexamination Certificate

active

07617965

ABSTRACT:
An apparatus and method are provided for measuring loads on a rotating friction stir welding tool of a friction stir welding machine. The apparatus includes a frame that can be connected to the friction stir welding machine, and rollers rotatably connected to the frame are structured to contact and rotate with the friction stir welding tool. Each roller is adapted to adjust in a respective direction and communicate with a respective load cell so that the load cells detect a positional characteristic of the rollers and measure loads applied to the rotating friction stir welding tool during operation. The rollers can contact the rotating tool directly during operation of the machine, such as while the rotating tools is being moved through a workpiece to form a friction stir weld joint, to measure the loads on the tool in the direction of movement of the tool and a direction normal to the movement, i.e., the path and path normal directions.

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International Search Report, PCT/US2007/023598, Apr. 25, 2008.
Written Opinion, PCT/US2007/023598, Apr. 25, 2008.

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