Getting to know about the installation and replacement of MIG welding liner components without the need for years of experience of spending a lot of money to learn it might be amusing to many welders. This not only helps you get your welding unit to run throughout the year without any breakdowns or repairs, but it might also help you get some good amount of cash for doing such repairs and installation for other welders.
Here is a guide giving you the pre-requisite knowledge about the installation process, tips to optimize your repairs, and help you grow in your welding career. In this era, it is necessary to minimize downtime and operate in the most efficient way possible.
DescriptionThere are several reasons that cause downtime in the welding industry like grounding problems, gas leaks, contaminated material malfunction in the machine, and sometimes even broken-down internal components. Wire feed problems and MIG gun liner issues make the situation even worse.
Generally, when we talk about wire feed problems, there is a lot of issues that are comprised of like erratic wire feed, wire burning, and even bird-nesting. Incorrect drive rolls, incorrect tip size, improper installation of wire liner, and clogged liners are some of the causes of wire feed problems.
The MIG gun liner is one of the simplest components used in the MIG welding setup but has the most prominent effects on the fabrication downtime which we had mentioned at the very beginning.
Conventional LinersThese gun liners are installed through the back of the gun. They are used in MIG welding units which have only industrial uses. The changeover is a lengthy and tedious process. The cable keeps growing and shrinking with more and more twisting.
Front-loading liners:These MIG gun liners are installed in the front of the gun. It reduces downtime and helps provide more time-saving advantages. Here the wire does not grow or shrink as the cable begins twisting.
Front-loading liners with a spring-loaded module:
Allows more than 1 inch of the motion of the cable twists and more. If you can trim the liner properly, it can be more forgiving than being incorrect.
MIG Gun Liner Properties
A MIG gun liner is a device that has a tube or a helical wire that is wound and helps in passing the welding wire to the gun and on to the contact tip. You must be sure about the MIG gun liner you purchase as the type and size of the liner is essential to be a match with the type and diameter size of the wire feed used.
Even if some do not like it, there are many welders who prefer using liners of larger diameters in a hope that the wire feed does not get damaged because of the accumulation of a large about of debris.
On the other hand, liners with smaller diameter have lower column strength and stay inside the MIG gun liner. It leads to premature wear and tears due to the continuous rubbing of their surfaces and other serious feeding problems too. This causes ‘birdnesting’, which is the tangling of the welding wire between the drive roll and end of the torch and wastes some wire feed.
Hence, large-diameter wire feed has a larger column feed strength and it should be accompanied by a limited liner’s outer diameter that must be used. If you use a compressed airliner, it can help you blow out the debris from the liner and increase its lifetime.
Conventional MIG Welding Liner:
Optimize Liner Performance:
The quality and maintenance of the MIG gun liner make a huge impact on weld quality. The proper installation and regular maintenance of these gun liners can help reduce downtime and unwanted expensive work.Follow these guidelines, to maintain a good-quality liner performance:
Tips to Install Conventional Liners:
Tips to Install Front-loading Liners:
Sean Coby is a welder par excellence and well respected among the welding community in Woodbridge, VA. He prides himself to be the fabricator and mechanic in the automotive/ diesel industry for the past more than eight years now. As the chief editor of his https://weldinginfocenter.com, he shares his experience to be safe during welding and to take proactive steps for becoming a successful welder like him.