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What are the different types of welding?

Welding is an excellent way to join two or more parts together. This is because the process works at the atomic level and binds all these elements into one solid piece.

Because it requires no assembly parts, welding is a quick and easy system to set up. The welding methods used are very durable, as they do not require rivets or staples to attach the parts together.

In this article, our welding and machinery repair experts will teach you more about the different welding processes.

Types of welding according to your requirements

There are different types of welding, which will be used depending on your needs and goals. Discover in this article 5 successful welding procedures!

1. MMA or manual metal arc welding

MMA welding has several advantages, such as the ability to make many types of welds on different kinds of metals. It is a very versatile and useful process for producing high quality results.

The MMA method can be performed easily and quickly by both beginners and expert welders and has become one of the most popular welding processes in recent years.

How MMA welding works

To perform MMA welding, it is necessary to use and control an electric arc. The heat generated simultaneously melts the parent metal and the electrode coating. This creates a molten slag that protects the deposited metal during and after solidification.

2. TIG welding

Like MMA welding, TIG welding is a type of welding which involves the electric arc. When properly used, this process allows the production of all kinds of welds that will be characterized by their solidity, their robustness and their resistance over time.

The different technical steps used in TIG welding require a certain amount of experience to be mastered. That is why it is recommended to hire an industrial welding professional. 

How TIG welding works

The acronym TIG comes from the original title of the process, which stands for “Tungsten Inert Gas”. Tungsten is used instead of gold because of its high-density properties, while still being light enough to not cause problems when melting different types of alloys such as aluminium, bronze, forge welding, etc.

3. MIG/MAG welding

To continue with the welding processes that use the electric arc, let’s talk about the MIG/MAG method. This kind of welding requires extensive hands-on experience and allows many different types of projects to be completed.

Since this technique can be used on a wide range of metals, it is the ideal process for welding on thick materials.

How MIG/MAG welding works

This type of welding uses the heat produced by an electric arc to produce different welds. In the case of MIG/MAG welding, gas is necessary in the welding process. This gas will be inactive for a MIG weld, but active for a MAG weld. This means that in the first case it will serve only to protect but in the second case it will contribute to the quality of the weld.

4. Plasma Arc Welding (PAW)

Plasma welding is more powerful than the other processes, producing strong, robust welds. It is no wonder that plasma welding has become so popular in recent years. It is possible to make these welds long-lasting in a single application!

How Plasma Arc Welding works

Widely used in industrial machining, Plasma Arc Welding is a very similar process to TIG welding. However, in addition to using an inert gas and an electric arc to operate, this type of welding also uses a second gas that directly affects the quality of the weld. To obtain the desired plasma effect, the second gas quickly increases the temperature of the molten pool.

5. Blowtorch welding

As its name suggests, this welding technique is performed with a blowtorch. It is a versatile welding process used primarily for the design of industrial machinery.

Since it is not very accurate, blowtorch welding can be used to join large parts that will not be visible in a project. 

How blowtorch welding works

This process is very well-known. It consists of using a flame to melt a metal or alloy. Unlike other types of welding, blowtorch welding is perfect for beginners. To get started, make sure your blowtorch flame is properly adjusted. If you want to use this method, contact a welding professional first.

Contact HARtech for all your welding needs

If your project requires the use of these different types of welding, it is essential to contact an expert in this field. HARtech has been offering its expertise and welding skills to companies for over 20 years, producing high quality results in mechanical and industrial machining.

For more information, contact our team now! We will be happy to answer all your questions.

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