Examine seams for defects and rework defective joints or broken parts.
Align and clamp workpieces together, using rules, squares, or hand tools, or position items in fixtures, jigs, or vises.
Melt and apply solder along adjoining edges of workpieces to solder joints, using soldering irons, gas torches, or electric-ultrasonic equipment.
Clean workpieces to remove dirt or excess acid, using chemical solutions, files, wire brushes, or grinders.
Grind, cut, buff, or bend edges of workpieces to be joined to ensure snug fit, using power grinders and hand tools.
Guide torches and rods along joints of workpieces to heat them to brazing temperature, melt braze alloys, and bond workpieces together.
Adjust electric current and timing cycles of resistance welding machines to heat metals to bonding temperature.
Turn valves to start flow of gases and light flames and adjust valves to obtain desired colors and sizes of flames.
Melt and apply solder to fill holes, indentations, or seams of fabricated metal products, using soldering equipment.
Heat soldering irons or workpieces to specified temperatures for soldering, using gas flames or electric current.