Stir forming apparatus

Details Stir forming apparatus Stir forming apparatus

2011-07-05

2011-07-05

Tolan, Edward (Department: 3725)

Metal deforming

By use of tool acting during relative rotation between tool...

C072S075000, C072S112000, C072S125000, C228S002300

Reexamination Certificate

active

07971463

ABSTRACT:
An apparatus for forming a workpiece to a desired, non-planar configuration are provided. At least one friction stir forming tool, having a shoulder and a pin, is used to urge the workpiece to the desired configuration and friction stir form the workpiece. The forming tool can urge the workpiece against a contour surface of a die or a shoulder that is opposite the structural member from the tool. Thus, the forming tool plasticizes a portion of the workpiece and urges the workpiece to the desired configuration. In addition, the material properties of the workpiece can be improved by the friction stir processing.

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http://dictionary.reference.com, “formed, forming, forms” (verb) p. 1, “dome” p. 1, “shoulder” pp. 1-2, “connect” pp. 1-2.

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