Welder Setter, Resistance Machine
Sets up resistance welding and brazing machines that join or bond metal components...
Waste-Management Engineer, Radioactive Materials:
Designs, implements, and tests systems and procedures to reduce volume and dispose of nuclear waste materials and contaminated objects: Identifies objects contaminated by exposure to radiation, such as trash, workers' clothing, and discarded tools and equipment. Analyzes samples of sludge and liquid effluents resulting from operation of nuclear reactors to determine level of radioactivity in substances and potential for retention of radioactivity, using radioactivity counters and chemical and electronic analyzers. Refers to state and federal regulations and technical manuals to determine disposal method recommended for prevention of leakage or absorption of radioactive waste. Compares costs of transporting waste to designated nuclear waste disposal sites and reducing volume of waste and storing waste on plant site. Confers with equipment manufacturers' representatives and plant technical and management personnel to discuss alternatives and to choose most suitable plan on basis of safety, efficiency, and cost-effectiveness. Designs and draws plans for systems to reduce volume of waste by solidification, compaction, or incineration. Oversees construction, testing, and implementation of waste disposal systems, and resolves operational problems. Develops plans for modification of operating procedures to reduce volume and radioactive level of effluents, and writes manuals to instruct workers in changes in work procedures. Advises management on selection of lands suitable for use as nuclear waste disposal sites and on establishment of effective safety, operating, and closure procedures.
Welder Setter, Resistance Machine:
Sets up resistance welding and brazing machines that join or bond metal components, such as panels, frames, yokes, tubes, and containers, according to specifications and blueprints: Lays out and marks weld points and position of components on workpiece, using rule, square, templates, and scribe. Selects, positions, aligns, and bolts electrodes, jigs, holding fixtures, guides, and stops onto machine, using measuring instruments and handtools. Turns knobs to set and synchronize electric current, pressure, timing cycle, and automatic feed and transfer equipment specified by welding machine chart or record of previous work. Computes and records setting for new work, applying knowledge of metal properties, principles of welding, and shop mathematics. Makes trial weld. Adjusts electrode gap and feed rollers to thickness of metal. Dresses electrodes, using tip dresser, file, emery cloth, or dressing wheel. Devises and builds fixtures. Gives directions to WELDING-MACHINE OPERATOR, RESISTANCE (welding) in operation of machine. May inspect electrical circuits of machine and perform maintenance tasks, such as replacing defective tubes and relays. May set up welding stations on automatic production lines. Important variations include material types, finish required, and types of joints welded (spot, butt, seam).
