Workpieces fabricated from lead, or other metallic materials having substantially similar characteristics, are fusion bonded by first abutting the workpieces to define an interface therebetween, and then inserting a heated bonding tool into the workpieces, at the interface, to create a localized zone of molten material about the bonding tool. The tool is then moved, relative to the workpieces, so that the molten zone of material traverses the interface, the molten zone cools and resolidifies behind the trailing edge of the tool, thereby gonding the workpieces one to the other.
Members are welded together by indirect application of heat, as for welding internal battery posts for connecting groups of plates or terminal posts electrically, through the use of a plurality of heated elements simultaneously engaging posts to be welded together, and wherein the configuration of molten material is controlled as the weld cools, by the use of a templet. The elements are heated, preferably by application of open flame through a plurality of mixing systems for the fuel, with one system being provided for each heated element.
A device for clamping at least two components for use in friction stir welding supports the components and holds the components in place using a plurality of channels placed under vacuum for clamping of the components during friction stir welding. Both sides of a welding backup plate may have a mounting device including the vacuum channels, for example. The mounting device may have a contoured support surface for supporting components with a simple or complex surface curvature, allowing the same device to be rapidly configured to a plurality of component types with varying surface curvatures.
Members are welded together by indirect application of heat, as for welding internal battery posts for connecting groups of plates electrically, through the use of a plurality of heated elements simultaneously engaging posts to be welded together, and wherein the configuration of molten material is controlled as the weld cools, by the use of a templet. The elements are heated, preferably by application of open flame through a plurality of mixing systems for the fuel, with one system being provided for each heated element.
Members are welded together by indirect application of heat, as for welding internal battery posts for connecting groups of plates or terminal posts electrically, through the use of a plurality of heated elements simultaneously engaging posts to be welded together, and wherein the configuration of molten material is controlled as the weld cools, by the use of a templet. The elements are heated, preferably by application of open flame through a plurality of mixing systems for the fuel, with one system being provided for each heated element.
A technique for the repair of selenium photoconductor elements is disclosed. The particular method includes applying a concentrated heat source to a damaged area of the photoconductor in an oscillating motion traverse to the damaged area so as to effect a weld of same. The oscillating motion of the heat source enables quick melting and resolidification of a minute area of selenium wihout undesirable recrystallization of the photoconductor.
