UNSW Making

MIG / TIG Welding Learn Module

Learning the basic principles of MIG and TIG welding

For this learning module, it would be beneficial to:

  • Have read through the Metal Basics Learn Module
  • Be undertaking the MIG/TIG Welding Badge Training
  • Have a project in mind you want to weld

Getting Started


Welding Overview


Metal inert gas (MIG) and tungsten inert gas (TIG) welding are examples of gas metal arc welding processes. Gas welding is a process by which the pieces of metal are locally heated to beyond their melting point, at which time they effectively become one piece of metal. Arc welding uses a metal welding rod that is melted to help form the welded joint. The arc types of welding all require electricity at relatively high voltage and current. The gas metal arc types also use an inert or active gas to create a barrier between the weld and the atmosphere, enhancing the quality and strength of the joint.

Meet the Family

Module 1



Welding Safety Induction PPCE Video

Watch this quick video of the safety clothing and equipment required when welding in the Design Futures Lab. It's good practice to follow this advice if welding elsewhere too.

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Welding creates splashing of hot molten metal and can even give you sunburn from the glow. It's important to dress appropriately for the task. Make sure your clothes are old and you don’t mind getting a few holes. Natural fibres are important because they don't burn as easily. As always in the workshop you should wear your hair tied back and safety glasses.

Workshop Safety

In the workshop always remember to:

Eye Safety

Erect welding screens or pull curtains closed

Warn others working nearby that welding is about to commence

Safety glasses should be worn at all times.


Open windows or doors to increase air circulation

Turn on the extraction unit pull close to your weld

Wear standards approved respirator if the options not available

Keep your head out of the fumes rising from the weld

Electrical Safety

Check all welding leads are in good condition

Make sure electrical connectors are tight and in good order

Wear dry insulated footwear and work on a dry insulated floor mat

Wear leather gloves

Do not change electrode wires in wet or damp conditions

NEVER place any part of your body in or across the welding circuit

Other Resources


Resources to enhance your welding knowledge!

Here's some other really helpful videos we've found online.

What is MIG welding?

What is Stick welding?

What is TIG welding?

TIG Welding tips and tricks

Get yourself trained!

If you want to learn and/or increase your skills in welding don't hesitate to come and chat to a friendly Makerspace staff member. Make sure you complete the Badges that the UNSW Makerspace Network has for you!

Related Badges

Categories: Manufacturing