Metal fusion bonding – Process – Using dynamic frictional energy
Patent
1996-11-15
1998-11-03
Ryan, Patrick
Metal fusion bonding
Process
Using dynamic frictional energy
228 21, 219 7813, B23K 2012
Patent
active
058296646
ABSTRACT:
A method for welding together two workpieces includes the steps of abutting workpieces together along respective edges of each of the workpieces, and locating one end of a rotatable tool astride the edges and against the workpieces. The tool is provided with a relatively narrow pin extending from the working end of the tool to engage the workpiece edges. The tool and pin are rotated to heat the workpiece edges, and the tool and workpieces are relatively moved. Electric current is supplied between the workpiece edges and the pin, with electrical resistance occurring between the workpiece edges and pin to provide heat in addition to the heat generated by friction occurring between the pin and workpieces to weld the workpieces together.
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DeLangis, L.M., "Manufacturing/Fabrication: Floor-Mounted Tool for Friction Stir Welding", NASA Tech Briefs, Sep. 1996.
Midling, O.T., "Material Flow Behaviour and Microstructural Integrity of Friction Stir Butt Weldments", The 4.sup.th International Conference of Aluminum Alloys, pp. 451-458, Sep. 1994.
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Kastelic Raymond
Spinella Donald J.
Streicher Eric T.
Aluminum Company of America
Beiriger Tracey D.
Knapp Jeffrey T.
Ryan Patrick
Strickland Elroy
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