Have you ever seen MIG process on pipe to flange joint with kinda semi-automatic mode? If no the you are at right place to visualize it. In this process, the joint assembly with the tack welds is placed on a rotatory gadget which allows to rotate the joint. The welder commences the process of welding on rotating assembly.
In the start you will see a liquid on the joint and many questions will pop-up in your mind that they start welding on a wet piece of material. Well that liquid is an anti-spatter liquor which is normally sprayed on the joint to avoid spatter . One advantage of MIG (metal inert gas process) is that it can be used with variable transfer modes that allows this process to use in several applications.
Types of MIG transfer Modes
There are four types of transfer mode variables in MIG process viz; Spray transfer, Short Circuiting, Globular transfer, Pulsed Spray Transfer.
- Spray transfer
- Short Circuiting
- Globular transfer
- Pulsed spray transfer
Shielding Gas
MIG process is associated by gas shielding, in order to make solidification of weld metal easier and to prevent it from foreign particles. Pure inert gas is used for the welding of non-ferrous metal and alloys. In steel welding mixture of inert gas with carbon dioxide is used to facilitate the process of welding.
MIG Welding Technique
MIG process is easiest among all types of arc welding. In this process welding wire is supplied through the gun and the welder only has to manipulate the weld pass by controlling the gun. Less time required for training and the machine can be easily used by home welders.
