Using A MIG Welder
One of the most common welders that can be used in many different capacities is the MIG welder. This is a piece of equipment that is commonly seen in private homes almost as often as it is in a professional capacity, and is a workhorse for many different jobs.
The MIG stands for metal inert gas. Essentially, the machine is a welder that has a constant feed of wire that is protected and sterilized by its gas mixture inside.
This way of welding is very popular, and is one of the quickest and most effective ways to get things done. The ease of use is also balanced by the ability to quickly fix or redo errors, and the relatively inexpensive nature of supplies.
Using one is a fairly simple process that can be effectively improved over time. The basic skills need to be mastered before the user movies onto other more technical attempts, so understanding how things will happen is very important.
To begin with, the person should examine the job that they are performing, and get the equipment set up appropriately. The machine will obviously have to be plugged in so that the critical electricity can flow throughout.
The next step is to adjust the gas tank that is mounted on the apparatus so that it is at the correct pressure. The pressure will vary based on the model of the equipment, so the user will have to make sure that they have pressurized within the safety limits required.
The next thing to do is connect the ground to a metal surface that is on the project that is being worked on. This will ensure that a good arc can be established, and make it so that the person will be protected from any harmful shocks.
The ground is a metal clamp that is connected to the rest of the welder, often through a jumper cable like construct. A good place to connect this clamp is near the base of the object, in an unobtrusive place where it will not get in the way or pose a risk.
After the clamp has been put on, them it is time to adjust the overall power level. The power level is represented by the total charge that will be going through.
It is very important to understand how this charge works, and how it can be utilized in a constructive capacity. The charge level will dictate how hot the weld will be, and how oxidized the material will be.
Getting the balance right is something that requires a bit of practice and tweaking based on what materials are being worked on. Most of the time, the recommended presets will be enough to get the job done, but there can always be improvements.
This balance will make or break the integrity of the weld. If the charge is too high, then the metal will oxidize and the weld will react poorly to the heat and possible contamination of the site.
Conversely, if the charge is too low, then the weld may not even catch on. The sweet spot is a setting that lies in between these two possibilities, and will be effective in establishing a bind with the metal underneath.
Once the person has everything configured, then they can start welding. The best way to get an arc going is to hover the tip of the wire from the distribution handle right above the metal, about half an inch away.
When the person pulls the trigger, they should get a viable arc. If an arc is established, then the user should gently work the weld back and forth with incremental motions.
It is important to get a good speed established in this situation. If the person is too fast, then the weld will not be strong or viable.
If they go too slow, then they will build up slag and will contaminate the site. By getting the gear properly configured and applying a sure and steady hand, the welding process is something that will be effective and successful for the job at hand.
Using a MIG welder is a dynamic and interesting process. With training and experience, people can learn to be very proficient with the equipment, and can be skilled users.
Jack R. Landry has used metalworking equipment for the last 11 years and written hundreds of articles about machinery and Durma machinery and tools.
Contact Info:
Jack R. Landry
JackRLandry@gmail.com
http://www.jorgensonmachinetools.com
