This certificate provides skills and knowledge in manual and semi-automatic welding processes used in the metal fabrication and construction industries. Instruction covers materials, equipment, welding procedures, testing techniques, inspection, welding metallurgy, blueprint reading, and welding safety. Competencies include techniques of joining ferrous and non-ferrous metals by the use of Shielded Metal Arc Welding (SMAW), Gas Metal Arc Welding (GMAW), Flux Cored Arc Welding (FCAW), and Gas Tungsten Arc Welding (GTAW). Oxyacetylene welding, oxyacetylene cutting and plasma arc cutting, are also covered.
Graduates may find employment in a number of industries including; pipe line construction, oil refining, aerospace, structural building, bridge construction, automotive, and small commercial fabricating. They may also work as welding shop supervisors and welding sales persons, and they can also become welding shop owners.
Student Learning Outcomes
✔ list the factors that must be considered before a welding process is selected.
✔ evaluate a weld according to a given standard or code.
✔ compare the three types of welding current used for Gas Tungsten Arc Welding.
✔ define voltage, electrical potential, amperage, and electrical current as related to Gas Metal Arc Welding.
✔ discuss how the Gas Metal Arc Welding molten weld pool can be controlled by varying the shielding gas, power settings, weave pattern, travel speed, electrode extension, and gun angle.
✔ explain what each of the digits in a standard Flux Cored Arc Welding electrode identification number mean.
✔ list and define the three units used to measure a welding current.
✔ give the characteristics of the three filler metal groups E6010 and E6011, E6012 and E6013, and E7016 and E7018.
✔ discuss three general categories of pipe welds including how they are used and what type of weld root penetration and strength they require.
✔ make a single V-groove butt welded joint on a pipe in any position to code specifications.
✔ list the crystalline structures of metals and explain how grains form.
✔ describe practical applications of metallurgy.
✔ solve basic welding fabrication math problems.
✔ read a set of welding blueprint drawings and explain each item shown and its dimensioning.