Quinn IP Law
Method and apparatus for vibration welding
A method and associated device for joining a first workpiece to a second workpiece employing a vibration welder includes placing the first and second workpieces in a lapped arrangement and interposing an adhesive material between contiguous surfaces of the first and second workpieces. A first compressive load is applied to a spot welding locus associated with the lapped arrangement of the first and second workpieces, and then relaxed. A second compressive load is applied to the lapped arrangement of the first and second workpieces simultaneous with applying, via a vibration welder, a vibrational excitation to the spot welding locus associated with the lapped arrangement of the first and second workpieces. The applied vibrational excitation is discontinued, and the second compressive load continues to be applied to the spot welding locus associated with the lapped arrangement of the first and second workpieces for a period of time subsequent thereto.
GM Global Technology Operations LLC
B B
B23K B23K
inventional inventional
Peter H. Yongqiang
Foss Li