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Alluminium welding machines


Aluminium welding machine Sweden

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Welding machine for aluminum: choose the best

The world of welding machines for aluminum is very fascinating especially for those who are a fan of DIY or for an aspiring welder who has to buy his first tool because he just started his job. It has to deal with a wide range of products and accessories that are on the market. There is a large market for aluminum welding machines and they are all different from each other, often they are all driven by fuel engines so that they can be used even if there is no electrical outlet, this will make it easier to carry it anywhere. If you are an aspiring welder you need to understand what are the right characteristics to be able to choose a welder compatible with your needs, thereby increasing  the possibility of being contacted by an employer to carry out some important project.

Characteristics to take into account before purchasing an aluminum welding machine

Assessing the nature of the metal

Very often the welding takes place only on carbon steel, because this material has the ability to handle excess heat, which any novice welder could accidentally apply to the metal. So it’s compatible with all the welding machines on the market. Stainless steel is particularly suitable for the preservation of beverages or edible items due to its ability to resist corrosion. It is compatible with the TIG or MIG aluminum welding machine and does not require as high amperage to work as carbon steel when it is welded. Aluminum needs an almost uniform heat supply to prevent the welding bath from drying out due to its high thermal conductive capacity. However, the high heat input often causes the deformation of the workpiece.

Aluminum therefore requires more complex welding machines, such as the MIG machine equipped with the ability to perform pulsed welding, in order to be optimally welded. A better choice for welding aluminum would be a high-end TIG welding machine. It would therefore be better to evaluate the metal you want to weld before choosing a welding machine.

Establishing the right amperage of the aluminum welding machine

The cost of an aluminum welding machine depends in part on the amount of current it can generate, the thicker metals usually require more current to be welded properly. It is therefore best that you pay close attention to the thickness of the equipment and the basic metals with which you should work for a project. Take, for example, thick structural steel and a tube with a thickness of more than 5 cm, to weld them effectively it would require a stick welding machine or a high-end MIG welding machine. To weld thin metals, on the contrary, more sensitive welders would be needed to provide the right amount of heat to form the weld. From this point of view, the welding of aluminum becomes almost equal to the welding of a relatively thinner metal.

Choosing the ideal power for welding

When welding on the inside you can connect the machine to a 115 volt AC machine, a 220-240 volt AC power supply. A 115 volt supply is the regular supply that receives any commercial or domestic facility. Most elementary welders work at this voltage. The aluminum welding machine could therefore work in single-phase or operate as a three-phase device.

Referring to the specification sheet

Referring to the data sheet can help you understand several fundamental things to differentiate one good aluminum welding machine from another. For example, a sheet of specifications can help you assess how well a continuous welder can perform over a period of ten minutes. The working cycle is representative of the number of minutes that can be welded over a standard ten-minute interval. Exceeding the working cycle can overheat the machine, damaging the internal circuit.

Analyzying compressed gas requirements

Different welding processes require the use of different compressed gases. Oxygen, argon and carbon dioxide are the most commonly used compressed gases in different welding procedures.

Buy aluminum welding machines from leading manufacturers to ensure that the appliance operates safely.

Overview of welding processes

The most common processes are MIG, TIG and stick. Each of them has advantages and limitations for certain applications. There is no single approach.

MIG aluminum welding machines use a wire welding electrode on a coil that is automatically fed at a constant preselected speed. The arc, created by an electric current between the base metal and the wire, melts the wire and joins it to the base, producing a high-strength welding with great appearance and little need for cleaning. MIG welding is clean and easy and can be used on thin or thick metals.

Similar to the MIG, Animated Wire Arc Welding (FCAW) is a wire-fed process, but differs in that the auto-shielded FCAW does not require shielding gas. Instead, the animated wire protects the arc from contamination. This is a simple and efficient approach, especially when welding outdoors, in wind conditions or on dirty materials. FCAW is widely used in construction due to its high welding speed and its portability.

MIG welding and core welding are easy to learn and can create extremely clean welding on steel, aluminum and stainless steel. Both processes have the ability to weld thin materials such as calibre 26.

TIG arc welding for aluminum, this arc welding process uses a non-consumable tungsten electrode to produce the welding. The welding zone is protected from atmospheric contamination by protective gas (usually argon) and filler metal, although some welds, known as autogenous welds, do not require it. A constant current welding power supply produces energy that is conducted through the arc through a column of highly ionized gas and metal vapors known as plasma.

TIG welding is most commonly used to weld thin sections of alloy steel, stainless steel, and non-ferrous metals such as aluminum, magnesium, and copper alloys. The process guarantees the operator greater control over the welding, allowing to obtain strong and high quality welding. TIG is relatively more complex and difficult to master than other processes and is significantly slower.

The Stick has been for many years the most popular method for most home welding. This process uses an electric current that flows from a gap between the metal and the arc welding electrode. The stick is effective for welding most alloys or joints and can be used inside and outside or in areas with air currents. It is also the cheapest method and provides the ability to create a good bond on rusty or dirty metals.

However, it is limited to metals no thinner than calibre 18, requires frequent rod change, emits significant splashes and requires finished welds to be cleaned. Even stick welding is harder to learn and use, especially the ability to hit and maintain an arc. Arc welders are available in AC, DC or AC/DC, with AC being the cheapest. It is used for welding metal thicker than 1/16 inch or higher. These machines are a good choice for farmers, hobbyists and home maintenance jobs.

Why choose TIG welding for aluminum

Output power in ampere

The higher the power, the thicker the pieces you can weld. When choosing an aluminum welding machine, always look at the amps. You need one that offers the widest range at the best price.

An aluminum welding machine with a very small ampere range can seriously limit the types of materials that can be welded. An aluminum welder with a range that goes from 5 to 230 ampere offers the flexibility to weld thin materials such as 24 AWG stainless steel or aluminum with a thickness of over 60mm. Aluminum requires more ampere than steel and stainless materials. The use of an aluminum welding machine that cannot reach a minimum of 200 amperes limits the possible thickness of the aluminum welding to a range between 31 and 47mm. A wide range of amps allows you to use a welding machine for a variety of jobs and guarantees that you will never have to buy or use other aluminum welding machines.

Pulsed aluminum welding system

Heat control is another important feature of a good aluminum welding machine. When welding thin metals, the heat control reduces its deformation.

A good way to control the heat of a welder is pulse welding. During pulse welding, the welder switches from the current at full load to the current at low current. This keeps the arc while the welding torch head can be cooled.

A good aluminum welding machine must be equipped with a pulse mode to maintain heat control.

Why choose MIG welding for aluminum

Protection against overheating

Overheating is another problem that makes many MIG welding machines unusable. These aluminum welding machines can only be used for a short period of time and, when they overheat, it is necessary to wait a long time for them to cool down before being able to continue to use them. To protect yourself from this problem, buy an aluminum welding machine with thermal overload protection.

Work cycle

The calibration of the aluminum welding machine is carried out at a certain ambient temperature. Famous brands test at 105 degrees Fahrenheit, but there are those that measure the work cycle at a temperature of 85 degrees Fahrenheit.

If you work in a warm environment, pay attention to this.

What are the advantages of inverter welders?

These aluminum welders are able to convert alternating current into direct current thanks to their built-in filter, which allows users to work at a higher quality and thus with a safer current, reason why inverter welders are the most popular among professionals in the industry. For example, if there is an increase or decrease in voltage while the operator is working on the device, the fuse it is equipped with will protect him from damage. But this is not the only advantage of inverter welders. These are very light devices, as they work with high frequencies, which can be operated in small spaces and allow you to transport them easily and comfortably.

In addition, inverter welders stimulate the increase or low electromagnetic energy, consume less electricity than conventional ones, making them more profitable, and many models have the IGBT button with which you can increase the frequency of primary power in an inverter welder reaching a high frequency.

So, if you are looking for a stable and safe electric current that will protect you at all times, purchasing inverter welders is exactly what you need.

What factors should you consider to determine a budget?

The type of aluminum welding machine you buy must be suitable for the specific functions you require and the projects on which you will work the most. Think about your final goal and consider expanding the utility of your welder. Do you want more power or amperage in the future? Will you ever want to learn or use further welding processes?

It is important to take note of the different amperage and power needs, as well as the work cycle required to achieve the most effective and cost-effective operational results for the projects you want to complete.

In addition to the cost of the aluminum welding machine itself, do not forget to include the costs for accessories and supplies that you will need to run your new welding machine. This includes welding protection (helmet, gloves, jacket, etc.) as well as gas and consumables.

Don’t feel hasty in making a purchase decision. Take some time to define your needs.


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