What is the difference between MIG and TIG welding? 

Fabrication and welding techniques is a big part of our services here at Fab-Tech Telford and we are often called upon to assemble different machined parts for our customers.

During this fabrication process, we use two different welding techniques called TIG (tungsten inert gas) and MIG (metal inert gas) – in this article we look at the differences between the two.

1. Technique

The two welding techniques that we use are dependent on the project. With TIG the welder is required to separate filler material onto the weld while at the same time operating the welding torch with the other hand. MIG welding uses a wire electrode which is fed through a spool gun.

2. Difficulty

When it comes to ease of use and handling MIG’s continual feeding of the wire makes it an easier option. TIG requires more skill as the welder needs to be able to hold the welding torch and the filler material at the same time.

3. Material Thickness

The thickness of the materials that you’re welding can be a factor as to which technique will be best. On one hand, MIG can weld thicker metals, however, if the metal is thinner then TIG is the best option.

4. Types of metals

At Fab-Tech Telford our experienced welders can work with a wide variety of metals including aluminium, stainless steel, and mild steel.

When deciding on which technique to use MIG works can work with most of these whereas TIG is better with thinner materials. Our experienced fabricators and welders will assess this when the components come in.

5. Welding Speed

Our goal is to work quickly and to a very high standard, both MIG and TIG welding techniques have their benefits when it comes to speed. TIG is the slower option but will provide a much higher level of detail whereas MIG is a lot faster and ideal if we want to turn a project around quickly.

6. Project size

No project is the same and they can come in different sizes with several different components to weld together. The MIG welding technique is ideal for larger projects with TIG used for smaller projects using thinner materials.

7. Control

All our welders and fabricators are highly skilled and can work with both welding techniques. TIG welders need to be proficient and experienced with timing and using both hands to balance the materials. The MIG welding technique is a good starting point for beginners.

Speak to the specialists

If you would like to know more about fabrication and how we can help you why not get in touch with one of the Fab-Tech team here. Alternatively, you can call us direct on 01952 899144 or email sales@fabtechltd.co.uk