Introduction

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.

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.

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

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!