Patent ID: 6019272
Filing Date: 2000-02-01
Classification: B23K,H01R,H05B,H05K,Y02P

Abstract:
A method for attaching a terminal to a metallic mating surface on a workpiece by friction joining, comprising the steps of:providing the terminal and the workpiece, wherein the terminal comprises an electrically conductive body having a top end to which an electrical connector may be attached, a bottom end having a bottom surface generally conforming to the mating surface of the workpiece, a rotational axis substantially orthogonal to the bottom surface about which the terminal may be rotated, and a layer of solder attached to the bottom surface wherein the layer has an outer perimeter and defines a central solder-free region about the axis;rotating the terminal about its rotational axis at a predetermined rotational speed while holding the workpiece stationary;pressing together the rotating terminal and the stationary workpiece using a predetermined forging force for a predetermined length of time, so as to promote a galling bond between the mating surfaces; andabruptly stopping the rotation of the terminal.