Types of Welders | What kind of welding machine to buy?

 

Do you need to buy cheap welders even though you have doubts because you don’t know what the differences are between the different types? Keep reading… in this article we will inform you about the types of welders, we will advise you so that you can choose the welding machine that best suits your needs and we will recommend some models of welders. Would you like to know what types of welders exist?

History has led man to build tools to respond to vital needs (hunting, wars, health), tools that have evolved and improved over the years, as is the case with welders.
Read on because after the introduction we will answer the question which welding machine to buy..

As we mentioned earlier, humanity’s need to advance and get ahead led it to manufacture tools for improvement. It was through forging, since melting materials was a primary issue, that the question arose of how to fuse two metal materials to build a third when welding ends.

At that time, these types of tools were necessary for activities such as the construction of weapons, jewellery, etc. This process was known as forge welding or forging.

The first writings about welding dating back to the time of the Egyptians and Romans who used forging welding, which is to fuse two materials. This is when we can start talking about traditional welding.

All these processes evolved until 1782, when Professor Lichtenberg describes a process of welding with a coil and a penknife blade in a letter to a friend, although it was not until 1865 that the Englishman Wilde patented electric arc welding.

 

What is a welder for? How does it work?

Starting from the premise that there are different classes of welders, the usefulness of each of them is particular, that is, there are welders that are used more in one sector than in another, whether in electronics, industry, etc.

What is a welder? We can define it as the tool designed to fuse metallic materials and thus create a new piece. In the technical sense, welding is the process of joining two or more elements that are generally metallic by almost always using a third material that acts as a filler material to create the fusion and obtain another material.

Welding machines require various energy sources necessary to carry out the process, thus being able to distinguish different types of welders depends on the energy source to be used.

 

Types of welds. Which welding machine to choose?

If we have doubts about which welder to buy, an important aspect is to know the types of weld. Here we go!

Arc welding

It is an electrical device that uses its current to form an electric arc between the metal to be welded and the electrode used, thus causing a fusion. We are talking about the most popular welding method today. Within arc welding, we find different types depending on the energy source used, the type of electrodes and the use of additional materials:

• Manual MMA Metal Arc Welding – It is characterized by the use of steel electrodes covered with a filler material that is used to join the pieces.
• Metal arc gas welding or inert metal gas (MIG) welding – It operates with a covered electrode and welds with an inert gas, which is the one that finally interlocks the pieces, not requiring any filler material.
• Flux Core Arc Welding – Unlike the previous ones, it works with a steel electrode filled with a powder material that, when burned, causes a shielding gas.
• Tungsten Gas Arc Welding, or Tungsten Inert Gas (TIG) – It makes use of the tungsten electrode and also inert or semi-inert gases are used to shield the materials.
• SAW (Submerged Arc Welding) Submerged Arc Welding – Makes use of a granular protective material over the arc that allows it to isolate and protect the weld from atmospheric contamination.

Tin soldering

The tin soldering iron is composed of a copper tip that heats up when activated and a handle made of insulating material to handle it comfortably and safely. This type of soldering is used especially in small and delicate jobs such as electronics, etc.

Gas welding

Very common in plumbing. If your need is to weld metallic materials, copper or aluminium, you will need this type of welding. In this type of welding machine, the fuel gas circulates through a pipe to the torch, in which a friction system is installed by which a flame is achieved that melts the material, which can be steel or zinc alloys, tin , copper or bronze.

Laser welding

This type of welding is the most appropriate for small areas and delicate areas because it provides high precision and due to its speed it is often used in mass manufacturing processes. Laser welding is carried out by heating the area to be welded followed by an application of pressure.

In addition to taking into account the types of welding, welding machines are also divided according to the system they use:

• Traditional Welders

It is the most common at least in its history of use, although currently they have been relegated to new designs and safer ways of working.

• Inverter welders

Perhaps it is a more expensive technology, although it has a great advantage that you can do various types of welding without having to change your equipment. Inverter welders are characterized mainly because they are:

• Easy to transport.
• They have long durability.
• They allow several types of welding
• They carry out a more professional welding aesthetically speaking.

 

How to choose my welding machine? Aspects to consider.

Choosing a welding machine is not an easy task unless you know exactly the type of machine we want, but the following aspects must be taken into account.

• Type of work that we are going to carry out – As we have indicated, each type of welder is indicated for a specific type of work.

• Power of the welder – Depending on the use that we are going to give it, we will require more or less power.

A soldering iron with 120 or 140 amps will suffice if we want to carry out small repairs.
For more continuous use it is better to opt for equipment with 160A and 180A.
For prolonged and frequent use it is more convenient to buy 200A welding machines.

• Type of current used by the equipment – We must know if we want to choose a conventional or an inverter welder. Conventional welders operate with the same current that we have at home, that is, with alternating current, while inverter welders work with direct current, which is safer and more stable.
• Brand advice – Having the support of a technical team, a good technical service and a guaranteed brand allows us to know that we are making an appropriate purchase.

 

Specialists in MIG and MAG welding

Although we are specialists in arc welding, we also work with other types of welders as we have seen previously, therefore you can contact us and we will offer you our best solution.

Echoing our specialization in arc welding, in a previous article we talked about choosing an inverter welder, and today we want to end by talking about the advantages of MIG and MAG electromechanical welding, as well as suggesting some of our Jender welding machines in which we are specialized.

Jender MIG / MAG welding equipment is based on a low arc welding process, shielding gas and wire as the consumable.

The surrounding atmosphere is protected by an inert gas (MIG welding) or by an active gas (MAG welding). MIG / MAG welding is more productive than MMA (electrode) welding where time is wasted every time the electrode is replaced.

The use of solid and tubular wires increases the efficiency of this type of welding up to 80% -95%. The use of cored wires is particularly favorable for the production of heavy structures where high welding strength is required.

This welding is characterized by responding to a very fast process, being able to deposit the metal in all positions.
This system is used in small and medium thicknesses in steel structures and aluminum alloys.

 

Advantages of MIG / MAG welding

The main advantages offered by the MIG / MAG process are:

• Weld in all positions.
• Good finish (minimal projections).
• Welding in thicknesses from 0.7 to 6 mm without edge preparation.
• High productivity given the speed of the system.
• Very good finish.
• Deposits large amounts of metal (three times more than with the stick electrode process).

 

Which MIG / MAG welding machine to buy?

Jender offers you a guaranteed welding machine for industrial use with the best value for money. The Jender offer in Mig / Mag welding machines is based on the following machines:

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Jender 306 C

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Jender 406 C

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Jender 406 DV

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Jender 506 DV – AG

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With this article we have wanted to help you when choosing the right welding machine, if you still have any questions or want to request a quote for one of our Jender machines, do not hesitate to contact us through our contact form by clicking here or by phone 965463436.

Aluminium tubes for compressed air VS Galvanized

 

The compressed air industry has long been dominated by galvanized steel and plastic pipes, materials borrowed from related industries such as the construction and plumbing sectors. Traditionally, engineers and installers have made consistent use of such systems due to low material costs, familiarity, and most of all, habit inherited from earlier times.

Currently, due to the tightening of health and safety regulations in the workplace, quality standards and a change in the thinking of the industry, new advances have been made. Possibly the most important is the development of piping systems specifically designed for the distribution of compressed air..

We present you the compressed air pipes.

Aluminium tubing was introduced to the industry in the late 1980s as an alternative to plastic and steel, yet it has remained relatively underutilized and not appreciated until recent years. This article presents the various differences between aluminium and plastic pipes, and the clear advantages that can be seen with the introduction of aluminium.

 

1. Aluminium allows better flow rates.

When comparing the inner diameter of aluminium to a plastic pipe of the same outer diameter, you will find a big and obvious advantage. The significantly thinner and stiffer aluminium wall provides a much larger internal diameter, resulting in much higher flow rates and reduced pressure drop compared to plastic of the same size.

Additionally, the leak-free seal created by many aluminium system fittings, along with the smooth bore on the inner surface of the pipe, leaves virtually no lip to cause turbulence and disrupt air flow.

 

2. Aluminium can withstand extreme conditions.

Aluminium pipes have proven to have a much higher climatic resistance than plastic. Unaffected by sunlight, aluminium exhibits extreme fire resistance and is capable of maintaining a constant working pressure of 15 bar at temperatures up to 80 ° C. In comparison, the integrity of plastic pipes can be compromised due to prolonged exposure to the sun, offering minimal fire resistance and experiencing a significant drop in maximum pressure as temperatures rise.

If installed correctly, the non-corrosive nature of aluminium will allow the compressed air network to function efficiently for much longer than any other alternative such as galvanized, plastic, etc.

 

3. Aluminium does not expand or contract..

Due to its heat-resistant composition, aluminium exhibits very minimal expansion and contraction under extreme temperature changes. Plastic, on the other hand, has been shown to expand up to 50mm per 100m of pipe, resulting in substantial buckling of the entire main ring system.

Also, while plastic is prone to sagging and bending due to heat expansion, aluminium maintains its shape, which means fewer clip clamps are needed during installation to preserve the long-term structure of the system.

 

4. Installation is quick and easy.

The rigid nature of aluminium prevents it from bending and falling, which means that even at long lengths, it requires fewer clips (every 2-3m). During installation, pipe handling is easy; however, once folded, it will retain its shape.

Plastic pipe, on the other hand, requires more time and labour to install, resulting in much higher labour costs. They are prone to substantial drops, more clips are required to hold the structure, and additional accessories are required to bend the pipe and keep it in shape.

The influx of aluminium compressed air systems into today’s market highlights it as the way of the future for air distribution. While the initial capital cost may be higher than plastic, the long-term savings in installation, maintenance, and production put aluminium at the forefront of the industry.

If you want to know more about approved aluminium piping for compressed air installations, visit JENDER.EU, leader in the supply and management of high quality aluminium piping, accessories and accessories for compressed air.