Module 34A: MIG Welding (Core)

Module 34A: MIG Welding (Core)

Suggested time: 4-6 hours Level: Introductory

Foundational Objectives

To apply some principles of science to the welding trade.

To develop effective use of tools and equipment in order to develop entry level skills in the welding trade.
To develop 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 enable students to understand and use the vocabulary in the field of welding. (TL, COM)
To understand the use of welding technology, its application in the world around us from mining to underwater welding, and its use in space (TL)

Note: Other CELs may be emphasized.

Learning Objectives	Notes
34.1 To establish the relationship between wire speed and amperage, and welding voltage and arc length. (TL)
34.2 To determine the effects of backhand or pull welding and forehand or push welding.
34.6 To determine the effects of torch angle on weld penetration and weld appearance.
34.4 To identify the probable causes of the following defects: surface porosity, sub-surface porosity, lack of fusion, burn through, and lack of penetration. (COM)	Determine the corrective actions that can be taken to avoid surface porosity, sub-surface porosity, lack of fusion, burn through, and lack of penetration. (IL, CCT)
34.5 To describe the visual characteristics of a quality MIG weld.

Learning Objectives

Notes

34.6 To identify strategies to evaluate and improve weld quality. (TL, CCT)

34.7 To identify metals, perform preparation and assembly tasks prior to welding.

34.8 To perform supplementary and disassembly procedures.

34.9 To correctly use hand tools (both manual and power equipment). (TL, PSVS)

Identify the parameters that can directly affect weld quality: weld current and voltage, type of shielding gas/flux, diameter and types of filler metal, and type and condition of equipment.

Steps for the student:

identifies metal
determines mechanical properties of metals
determines physical properties of metal
prepares metal for welding.

Steps for the student:

performs equipment shutdown procedures
de-slags and cleans welds
forms welds to prescribed conditions
inspects final assembly.

Techniques for the student:

measures accurately
utilizes hammers
utilizes anvil
utilizes metal cutting tools and metal forming equipment
performs drilling operations
performs grinding and buffing operations
performs filing operations
utilizes drills and tip cleaners
utilizes vices
utilizes clamping devices
utilizes wrenches and pliers.

Create a rating scale using the above techniques.

Module 34B, C: MIG Welding (Core)

Review or repeat Module 34A as required before progressing to the next module at the 30 level.

Suggested time: 4-6 hours

Module 35A: MIG Welding Practical Assignments (Optional)

Suggested time: 20-30 hours

Foundational Objectives

To develop effective use of tools and equipment in order to develop entry level skills in the welding trade.
To develop critical evaluation skills in order to judge quality welding workmanship.
To demonstrate the safe and proper use of welding tools and materials.

Common Essential Learnings Foundational Objectives

To analyze specific welding processes, complete practical assignments and projects, and recognize that there are different procedures required to produce completed projects and assignments. (CCT)
To develop a product using learned skills, knowing when new skills are required, and developing a procedure that will ensure product completion. (TL, CCT)

Note: Other CELs may be emphasized.

Learning Objectives	Notes
35.1 To set up and complete the listed practical assignments. (TL)	Practice butt joint bend, fillet tee, butt joint vertical down, tee joint vertical down, lap joint vertical up, butt joint vertical up, vee groove butt joint, and aluminum (equipment requirements may allow only for theory). (NUM, COM, PSVS)
35.2 To achieve the required weld quality.
35.3 To analyze all weld faults. (CCT)	Students should identify the remedy required to overcome weld faults.

Module 35B, C: MIG Welding Practical Assignments (Optional)
Review or repeat Module 35A as required before progressing to the next module at the B30 level.

Include in 35C the following:
- Single and three pass fillet on 3/8" tee joint
- Aluminium Horizontal tee joint

Suggested time: 20 hours

Module 36: Introductory Projects (Core)

Suggested time: 10-15 hours

Foundational Objective

To develop effective use of tools and equipment in order to develop entry level skills in the welding trade.

Common Essential Learnings Foundational Objective

To analyze specific welding processes, complete practical assignments and projects, and recognize that there are different procedures required to produce completed projects and assignments. (CCT, TL)

Learning Objectives

Notes

36.1 To construct an assigned or an approved but comparable project. (TL, CCT, IL, PSVS)

Suggested projects may include:

gauge metal candle holder (10 hours)
gauge metal tool tray (10 hours) (Appendix D)
round steel and pipe project chipping hammer (10 hours).

These and other projects may be found in recommended resources for this curriculum.

Network with other teachers and exchange project ideas.

Involve students in community projects.

Discuss entrepreneurship possibilities.