Welding 10

Module 1: General Shop Safety (2-3 hours)

• 1. Identify the purpose and demonstrate the proper use and fit of personal protective equipment (PPE) while identifying the hazards from which they protect individuals.

     1. eye protection (lens shades)

     2. Clothing

     3. hearing protection

     4. footwear

  2. Recognize hazards (flashback & backfire) associated with oxy-acetylene welding equipment:

• • 1. Tanks

    2. Hoses

    3. gauges

• 3. Recognize hazards associated with electric welding processes

  4. Demonstrate the proper procedures to follow when reporting an unintentional injury

Module 3: Hand and Power Tools (3-15 hours)

• 1. Identify and define the safe use of hand tools:

     1. Hammers

     2. Pliers

     3. Wire brushes

     4. Strikers

     5. Anvils

     6. Files

     7. tip cleaners

     8. hand shears

     9. Hacksaws

     10. Clamps

     11. Vices

     12. Marking tools

  2. Demonstrate and articulate the correct procedures for operating power tools:

• • 1. grinders (stationary and portable)

    2. buffers (stationary and portable)

    3. power shear

    4. power hacksaw

    5. band saw

    6. drill press.

Oxy-Acetylene Skill

Module 5: Oxy-acetylene Start-up, Shut-down, and Cutting (3-5 hours)

• 1. Describe and perform the accepted start-up and shut-down procedures for the oxy-acetylene system which includes valves, regulators, torches, tips, types of flames, and safety precautions.

  2. Understand and describe how to cut 3⁄8” mild steel including the correct flame, flame distance, angle of the tip, direction of travel, speed of travel, and motion of tip.

Module 6: Introduction to Oxy-acetylene Cutting (3-5 hours) Prerequisite: Module 5

• 1. Identify precautionary procedures to limit the danger to others in the shop.

  2. Describe the relationship between:

     1. 1. tip size

        2. metal thickness

        3. gas pressures.

  3. Demonstrate the specified cuts on the provided material using an oxy-acetylene cutting torch.

Module 9: Oxy-Acetylene Welding (5-6 hours)

Prerequisite: Module 5

• 1. Run lines of fusion without the use of filler rod in the flat position on gauge mild steel.

  2. Assess the quality of personal work on practical assignments including butt weld, edge weld, and lines of fusion.

Arc Skills

Module 14: Shielded Metal Arc Welding Procedures and Equipment (3-4 hours)

• 1. Define and appropriately use terminology related to electric arc welding including

• 1. Describe the differences in welding electrodes such as 6011, 6013, 7014, and 7018.

  2. Categorize and explain the uses of direct current with straight and reverse polarity.

  3. Categorize and explain the difference between alternating current and direct current with straight and reverse polarity.

  4. Demonstrate start-up and shut-down procedures as well as striking the arc, setting and adjusting amperage, correct electrode angle, and appropriate rate of travel.

  5. Compile a list of specialty electrodes including those used for stainless steel, aluminium, nickel, and hard surfacing.

  6. Identify situations where flat, horizontal, vertical, and overhead positions would be used.

Module 15: Electric Arc Welding: Welding Faults (1-2 hours)

• 1. Identify faults such as crater-cracking, gas pockets, porosity, and undercutting.

  2. Justify and demonstrate corrections for electric arc faults.

Module 16: Electric Arc Welding (1-2 hours)

• 1. Compose a list of uses for common welds including butt, flat, corner, and fillet.

  2. Run continuous weld beads on mild steel.

  3. Demonstrate basic welding practices such as striking the arc, electrode angle, rate of travel, amperage settings, and electrode

Module 17: Electric Arc Welding Electrodes (1-2 hours)

• 1. Explain the significance of each position in the classification number for welding electrodes.

  2. Categorize the following electrodes according to uses and weld characteristics such as penetration, slag, spatter, and application: 6010, 6011, 6013, 7014, 7018, and 7024.

Module 18: Electric Arc Welding Skill Development - 7014, 7024, 7018, and 6010 (5-7 hours)

Prerequisite : Module 16 and 17

• 1. Run individual beads using 7014, 6010, 7024, and 7018 electrodes.

  2. Examine weld faults and identify causes and solutions.

Module 19: Electric Arc Welding Skill Development - Padding and Butt Weld (15-20 hours)

Prerequisite : Module 18

• 1. Perform a butt weld on mild steel using the four different electrodes while demonstrating the correct arc length, electrode angle, rate of travel, and amperage setting.

  2. Demonstrate an ability to diagnose weld faults and causes.

  3. Pad a plate with at least two layers on each side.

GMAW Skills

Module 25A: Gas Metal Arc Welding (GMAW) Safety and Equipment (2-3 hours)

• 1. Compile information related to the GMAW process including:

     1. care and maintenance of equipment

     2. GMAW equipment and process

     3. shielding gases

     4. types of wire

     5. weld faults and causes

     6. and advantages and disadvantages of GMAW

  2. Assess whether there are additional safety concerns for GMAW over oxy-acetylene and arc welding.

Module 27A: GMAW Procedures and Practice (15-20 hours)

Prerequisite : Module 24A

• 1. Perform a forehand pad.

  2. Perform a backhand pad.

  3. Perform tack welding.

  4. Perform a lap weld downhand on 14 gauge steel.

  5. Perform a fillet weld downhand on 14 gauge steel.

  6. Perform a butt weld downhand on 14 gauge steel.

  7. Compare and chart personal progress to identify increasing skill.

  8. Assess personal technique and results in consultation with the instructor.

Module 34: Careers in Welding (2-5 hours)

Determine personal skills and interests that could lead to a career in the welding trade through an apprenticeship, technical school training, or paid work.