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FAB1048 Semi-Automated/Automated Welding

Introductory · 1 credit · TMT - Trades, Manufacturing and Transportation

Description
Students develop basic knowledge and skills related to the use of Gas Metal Arc Welding (GMAW) and Flux Cored Arc Welding (FCAW) processes in both personal use and commercial applications. They also develop introductory knowledge of Submerged Arc Welding (SAW) processes.
Prerequisite
FAB1010: Fabrication Tools & Materials
Parameters
Access to a fabrication work centre complete with GMAW and/or FCAW equipment and supplies, and to instruction from an individual with formal, specialized training in arc welding practices.
Supporting courses
FAB1050: Basic Electric Welding

Outcomes The student will:

  • 1 take preventive measures to avoid accidents and personal injury to self and others by identifying health and safety hazards associated with GMAW, FCAW and SAW

    • 1.1 identify and explain safety issues related to:

      • 1.1.1 electrical shock

      • 1.1.2 toxic fumes

      • 1.1.3 radiant energy from the arc

    • 1.2 describe a safety plan in case of an accident

    • 1.3 identify basic components and operation principles for GMAW, FCAW and SAW processes

    • 1.4 describe the basic care, handling and storage for GMAW and FCAW wires

  • 2 identify power sources used in GMAW, FCAW and SAW processes

    • 2.1 relate knowledge of basic electrical terms to power sources used in GMAW, FCAW and SAW processes

    • 2.2 identify the function of slope and inductance in CV power sources

    • 2.3 demonstrate knowledge of the following basic electrical terms:

      • 2.3.1 direct and alternating current

      • 2.3.2 voltage

      • 2.3.3 amperage

      • 2.3.4 resistance

      • 2.3.5 polarity

      • 2.3.6 open circuit voltage and arc voltage

  • 3 select appropriate electrode wires and shielding gases for use in GMAW and FCAW processes

    • 3.1 describe and compare methods of metal transfer in GMAW, FCAW and SAW processes; e.g., short arc, globular, spray arc

    • 3.2 explain the advantages and disadvantages of GMAW, FCAW and SAW processes

    • 3.3 explain the advantages and disadvantages of the following different types of wire feed systems:

      • 3.3.1 push

      • 3.3.2 pull

      • 3.3.3 push–pull

    • 3.4 describe welding gun assemblies for GMAW and FCAW processes

    • 3.5 describe GMAW and FCAW electrode wires

    • 3.6 identify applications for the more commonly used GMAW and FCAW wires

    • 3.7 explain the purpose of shielding gases

    • 3.8 identify different types of shielding gases and explain their effects

    • 3.9 explain the advantages and disadvantages of different shielding gases in specific applications

    • 3.10 describe the purpose and operation of a regulator/flowmeter

    • 3.11 for a given type of weld and/or weldment, select the appropriate:

      • 3.11.1 wire type, size and feed rate

      • 3.11.2 current

      • 3.11.3 shielding gas type and flow rate

    • 3.12 select the appropriate solid/flux cored wire and machine settings

  • 4 perform safe start-up and shut-down procedures for GMAW and/or FCAW processes

    • 4.1 identify different drive roll assemblies

    • 4.2 describe the steps taken to set up GMAW and FCAW equipment including:

      • 4.2.1 fasten cylinders

      • 4.2.2 mount regulator/flowmeter

      • 4.2.3 pressurize/depressurize systems

      • 4.2.4 set/check drive wheel tension

  • 5 demonstrate safe GMAW and/or FCAW processes on light gauge mild steel and/or mild steel plate in the flat and horizontal positions

    • 5.1 identify typical weld types; e.g., fillet, groove, plug or slot, stud

    • 5.2 identify typical weld positions; e.g., flat, horizontal, vertical, overhead

    • 5.3 list and describe the basic weld joints; e.g., butt, lap, tee, corner, edge

    • 5.4 prepare and clean all surfaces to be welded by removing any:

      • 5.4.1 oil and/or grease

      • 5.4.2 paint, rust or scale

    • 5.5 make light-gauge fillet welds in the flat and horizontal positions, using GMAW and/or FCAW equipment

    • 5.6 complete a visual inspection of the weld by observing:

      • 5.6.1 overall appearance

      • 5.6.2 size and shape of beads

      • 5.6.3 plate penetration

      • 5.6.4 fusion

      • 5.6.5 degree of undercutting and overlapping

  • 6 demonstrate basic competencies

    • 6.1 demonstrate fundamental skills to:

      • 6.1.1 communicate

      • 6.1.2 manage information

      • 6.1.3 use numbers

      • 6.1.4 think and solve problems

    • 6.2 demonstrate personal management skills to:

      • 6.2.1 demonstrate positive attitudes and behaviours

      • 6.2.2 be responsible

      • 6.2.3 be adaptable

      • 6.2.4 learn continuously

      • 6.2.5 work safely

    • 6.3 demonstrate teamwork skills to:

      • 6.3.1 work with others

      • 6.3.2 participate in projects and tasks

  • 7 make personal connections to the cluster content and processes to inform possible pathway choices

    • 7.1 complete/update a personal inventory; e.g., interests, values, beliefs, resources, prior learning and experiences

    • 7.2 create a connection between a personal inventory and occupational choices

Program of Studies 2009. Source document, © Alberta Education.