Job Description
- Selects type and size of pipe or other related materials and equipment according to specifications
- Selects equipment and plans layouts, assembly, and welding, applying knowledge of geometry, physical properties of metal machining, and welding techniques
- May be required to use Gas-Metal Arc, Flux-Cored Arc, Gas-Tungsten Arc, Submerged Arc, or Shielded Metal Arc welding processes
- Lays out, positions, aligns and fits components together in various body positions
- Bolts, clamps and welds together metal components of products such as piping systems, plate, pipe and tube or structural shapes, using arc and arc gas welding equipment
- May weld in flat, horizontal, vertical, or overhead position
- May tack weld assemblies together
- Connects cable from welding unit to obtain amperage, voltage, slope and pulse as specified by procedure or supervisor
- Obtains specified electrode and inserts electrode into portable holder or threads consumable electrode wire through portable welding gun
- Starts power supply to produce electric current
- Strikes arc which generates heat to melt and deposit metal from electrode to work piece and join edges of work piece
- Manually guides electrode or gun along weld-line, maintaining length of arc and speed and movement to form specified depth of fusion and bead, as judged from color of metal, sound of weld, and size of molten puddle
- May manually apply filler rod to supply weld metal
- May clean or degrease weld joint or workplace, using wire brush, portable grinder, or chemical bath
- May repair broken or cracked parts and fill holes
- May remove excess weld, defective weld material, slag and spatter, using carbon arc gouge, hand scrapper, grinder or power chipper
- May preheat work piece, using hand torch or heating furnace
- May cut metal plates or structural shapes
- Examines weld for bead size and other specifications
- Loads, transports and unloads material, tools, equipment and supplies
- May assist in lifting, positioning and securing of materials and work pieces during installation
- Performs minor maintenance or cleaning activities of tools and equipment
- Assists other mechanics as needed
- Respiratory protection is common and may be required
- Required to pass employer performance tests or standard tests to meet certification standards
- Performs only procedures certified in
- Responsible for observing and complying with all safety and project rules
- Performs other duties as required