Introduction
Welding is the process of joining two pieces of metal together by melting them at high temperatures. Welding machines come in different types, but two of the most commonly used machines are the MIG welding machine and the normal welding machine. While these two welding machines are used for similar purposes, there are some key differences between them. In this article, we will take an in-depth look at these two machines and their differences.
What is a MIG Welding Machine?
MIG stands for Metal Inert Gas. A MIG welding machine uses a spool of wire that is continuously fed through the machine and into a handheld welding torch. The wire is connected to an electrical current, which creates a high-heat arc between the wire and the metal being welded. At the same time, an inert gas is also released from the torch to protect the weld from atmospheric contamination.
What is a Normal Welding Machine?
A normal welding machine, also known as a stick welding machine, uses a welding electrode that is coated in flux. The electrode is connected to an electrical current, which creates a high-heat arc between the electrode and the metal being welded. As the electrode melts, the flux coating vaporizes, creating a gas shield around the weld to protect it from atmospheric contamination.
The Power Source
One of the main differences between a MIG welding machine and a normal welding machine is their power sources. A MIG welding machine typically uses an internal transformer to convert the power from the wall outlet to the required voltage for welding. On the other hand, a normal welding machine requires a power source that is capable of delivering the high amperage required by the machine.
The Welding Process
When it comes to the welding process, a MIG welding machine is much simpler to use than a normal welding machine. With a MIG welding machine, the wire is continuously fed into the torch, making it easy to hold and move the torch over the weld. With a normal welding machine, the operator needs to manually feed the welding electrode into the weld, making it a more difficult and time-consuming process.
The Welding Options
MIG welding machines are better suited for welding thin materials, while normal welding machines are better suited for welding thicker materials. This is because a MIG welding machine uses a lower heat input than a normal welding machine, which can cause the weld to become too hot and result in warping and distortion on thicker materials.
The Welding Speed
Another important difference between a MIG welding machine and a normal welding machine is their welding speed. MIG welding machines are much faster than normal welding machines. This is because the wire feed system and the high deposition rate of the welding wire allow for a faster welding speed. With a normal welding machine, the operator needs to rotate the electrode, which slows down the welding process.
The Weld Quality
When it comes to weld quality, MIG welding machines generally produce cleaner and more precise welds than normal welding machines. This is because the MIG welding process uses a shielding gas, which protects the weld from atmospheric contamination. With a normal welding machine, weld quality can be affected by atmospheric contamination, resulting in a lower-quality weld.
The Cost
A MIG welding machine is typically more expensive than a normal welding machine. This is because MIG welding machines have more advanced technology and a higher rate of deposition, which make them more expensive to manufacture. However, the increased speed and higher-quality welds produced by a MIG welding machine can offset the initial cost investment over time.
The Maintenance
Maintenance is an important consideration when comparing MIG welding machines and normal welding machines. MIG welding machines require less maintenance than normal welding machines because they have fewer moving parts. Additionally, the wire feed system is housed inside the machine, which reduces the chances of it getting damaged. Normal welding machines require more maintenance because they use electrodes, which need to be replaced periodically.
The Safety
MIG welding machines are generally considered to be safer to use than normal welding machines. This is because the MIG welding process generates less smoke and fumes than normal welding, which can be harmful to the person operating the machine. Additionally, MIG welding machines use a shielding gas, which reduces the risk of a flash fire.
Conclusion
While both a MIG welding machine and a normal welding machine are used for the same purpose, there are significant differences between these machines. Before deciding which welding machine to use, it's important to consider factors such as welding speed, quality, cost, maintenance, and safety. Whether you choose a MIG welding machine or a normal welding machine will depend on your specific needs and preferences.