Fuse together metal using heat, explosions, and other tools.
Assembles and tack-welds steel frames and other component parts of machinery and equipment in preparation for final welding: Measures and marks locations for metal components on assembly table, following blueprints. Lifts and positions components on assembly table, using electric crane, jacks, and shims. Verifies position of metal components in assembly, using straightedge, combination square, calipers, and rule. Clamps metal components to assembly table for welding. Removes rough spots from castings, using portable powered grinder and hand file, to fit and assemble parts. Tack-welds parts in preparation for final welding. Moves assembly to storage area, using electric crane.