Module 29A: MIG Welding Safety and Equipment (Core)

Module 29A: MIG Welding Safety and Equipment (Core)

Suggested time: 3-6 hours Level: Introductory

Foundational Objective

To be aware of the potential danger to fellow workers engaged in activities in the accompanying work space.

Common Essential Learnings Foundational Objective

To use the language, symbols, and terms specific to MIG welding, and express knowledge of the area using communication skills. (COM)

Note: Other CELS may be emphasized.

Learning Objectives

Notes

29.1 To study MIG welding and to develop safety skills necessary in its use.

Topics include MIG welding process, care and maintenance of MIG equipment, MIG welding equipment, shielding gases, types of wire, weld faults and causes, types of joints and preparation, advantages and disadvantages of MIG welding, types of metals and metal thickness, current supply, and metal transfer. (TL)

29.2 To apply accident prevention principles and practices to ensure a safe, injury free work performance.

Stress personal safety. (PSVS)

Stress safety of others.

Use or create a "Safety Procedures Checklist."

Students sometimes do not see the value in safety checklists. Ask them which plane they want to fly on, one whose pilot always uses a pre-flight checklist, or one whose pilot sometimes uses the pre-flight checklist. (COM)

Module 29B, C, D: MIG Welding Safety and Equipment (Core)

Review or repeat module 29A as required before progressing to the next module at the next level.

Suggested time: 3-6 hours for all levels

Module 30A, B: Start-Up and Shut-Down (MIG) (Core)

Suggested Time: 2-4 hours Level: Introductory

Foundational Objective

To establish a systematic routine for setting up a welding workstation and for putting away materials and equipment in the workplace or school setting.

Common Essential Learnings Foundational Objective

To identify equipment and procedures using technical terms related to the field of welding. (COM)

Learning Objectives

Notes

30.1 To explain the principles of MIG welding. (COM)

30.2 To identify the equipment.

30.3 To demonstrate the correct start-up and shut-down procedures of MIG welding equipment. (IL)

Check resources.

Start-up Procedures:

checks the condition of the workstation welding equipment, and personal protective equipment
puts up adequate screening to protect people in the immediate area
ensures proper ventilation
makes sure all connections are correctly attached
checks for the proper shielding and wire electrode
adjusts the machine for the appropriate wire speed, voltage, and amperage
turns on shielding gas and checks flow meter
checks shielding nozzle for gas obstructions
uses the proper personal protective equipment
posts fire watch if necessary
turns on machine.

Shut-down Procedures:

carefully removes and cools all hot welding materials
turns off power supply to welder
shuts off shielding gas and closes the cylinder valve
hangs up all cables and stores equipment as directed
cleans up the work station.

Module 30C, D: Start-Up and Shut-Down (MIG) (Optional)

Review or repeat Module 30A as required before progressing to the next module at the next level.

Suggested time: 2 hours

Module 31A: MIG Procedures and Practice (Core)

Suggested time: 10-14 hours Level: Introductory

Foundational Objectives

To develop knowledge of the care and maintenance of welding tools and equipment.
To establish a systematic routine for setting up a welding workstation and for putting away materials and equipment in the workplace or school setting.

Common Essential Learnings Foundational Objectives

To use the language, symbols, and terms specific to the welding field and to express knowledge of the area using communication skills. (COM)
To practice safe work habits while operating MIG welding equipment. (TL)

Note: Other CELs may be emphasized.

Learning Objectives	Notes
31.1 To demonstrate knowledge of the basic components of a MIG welder.	Demonstrate and discuss stress maintenance, nozzle, contact tips, liners, wire rolls (change), gauges and flowmeters, gas, amperage adjustment, and voltage adjustments. (COM) Complete selected written exams.
31.2 To demonstrate the start-up, setting and adjusting of a MIG welder. (TL)	See Modules 29 and 30.
31.3 To demonstrate the proper shut-down of the MIG welding unit.	See Modules 29 and 30.
31.4 To demonstrate maintenance of the MIG welder.
31.5 To be knowledgeable of types of gases and wire used for MIG welding.
31.6 To be able to disassemble the nozzle, tip, liner, wire, and gauges independently, and then to reassemble these components. (TL, COM)	Demonstrate care and maintenance of equipment. (IL)

Learning Objectives

Notes

31.7 To perform the MIG operating procedure successfully.

Demonstrate and discuss personal safety, safety of others, the MIG welding process, shielding; types of wire, weld faults and causes, types of joints and preparation, advantages and disadvantages of MIG welding, types of metals and metal thickness, metal transfer, and current supply.

Demonstrate welding procedure by laying down a bead on thin steel

(16 gauge). (TL)

Module 31B, C: MIG Procedures (Optional)

Review or repeat Module 31A as required before progressing to the next module at the 30 level.

Suggested time: 10 hours