A welding professional may have a few welding machines, welding guns, or welders in their repertoire. Welding machines generate heat that melts metal parts so that these parts can be joined. However, there is no single welding machine that is suitable for all welding projects. Before buying any machine, you must know which type of welding machine and techniques you will be applied.
Types Of Welding Techniques
Before you commit to welding, you must know which welding technique you will apply. Choose your welding machine first before applying the technique. The 4 most demanding welding techniques are:
1: Stick Welding/SMAW
When it comes to welding, stick welding stands out. Not only is it an efficient, fast, and versatile form of welding, but it is also incredibly easy to use. It uses an electric current flowing from a gap between metal and a welding stick and is used for sticking welds and gouging.
Stick welding can be used with most alloys or joints and works with indoor and outdoor settings. It also works with rusty and dirty metals and is economical.
2: MIG Welding/GMAW
With this technique, a wire welding electrode is fed at a constant speed and the arc is created by an electrical current between the base metal and the wire.
- Mig welding process is easy to learn.
- It has a high welding speed.
- MIG welding machine works well with thin and thick metals.
- Easily clean welds with no slag.
3: Flux-Cored Arc Welding
With the wire electrode constantly fed, this process has no need for shielding gas. The flux-cored wire shields the arc instead.
- Flux-Cored Arc Welding machine works well on dirty and rusty metals.
- good for out-of-position welding.
- deep penetration for welding thick areas high metal deposition rate.
4: TIG Welding/GTAW
The most awesome part of this welding process is that it does not require a consumable metal to melt the metal. The “arc” is where the energy is coming from, and the “shielding gas” protects the area.
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- For those not looking to break the bank, the welder that fits your budget and needs is the TIG320. A welder that welds well with thin sections of alloy steel, stainless steel, and non-ferrous metals like aluminum, magnesium, and copper alloys.
- it is a high quality, precise welder with weld beads that look good and allows for heat input adjustment while welding with a foot control.
Welding Machine Considerations
In addition to knowing which welding technique to use, choosing the right welding machine also requires consideration of a number of important factors, such as the cost of the machine, its durability, and its size.
1: Quality Of The Weld
One thing to consider when choosing a welding machine is the quality of the weld: if you need a high-quality weld that looks good, you want to choose a TIG welder. If you need to create a strong weld between rusty or dirty metals, you might consider a stick or flux-cored welding machine.
2: Condition Of Welding Machine
The parts of a factory can be very hot and dusty. To ensure safety and to allow equipment to work more efficiently, the company will need to provide each work station with welding equipment.
While you can use stick welding machines for thick metals, thin materials call for MIG or TIG welders. The car manufacturing industry involves a lot of welding of thin metals.
4: Types of Metal
Every craftsman has their preference when it comes to welding, and what works best for one, might not be the best for another. Though most people would agree that TIG welders work well with all metals or alloys, except for cast iron. Stick welders work best on steel, stainless steel, and cast iron.
5: Basic & Complex Welding Machine
In order to decide which welding machine to purchase, you should first assess the size and complexity of the job you need to accomplish. A basic MIG welder is good for beginners and a TIG welder for experienced welders.
6: AC/DC Power
Different welding outputs are required to weld different materials. Choosing a combination AC/DC welding machine provides flexibility for welding a variety of materials.
7: Portable Machine
To ensure power to your welder, you should use a portable welder that works with either an inverter or that is engine-driven.
8: Welding Duty Cycle
With a duty cycle, we know how much time can go by before the welder needs to worry about overheating or burning the power source. An average hobby welder can get away with a 20% duty cycle, but a professional might use a complex TIG welding machine with a 100% duty cycle. For the most part, the 40%-60% duty cycle is sufficient.
Choosing the right welding machine depends on the type of job you want to do and how it is done.