Differences Between The Various Types Of Welding Machines

Brief insight into the different types of welding systems currently in use and their differences in terms of costs, performance and intended use.

Welding systems, more simply known as welding machines, can be of different types depending on their operation. The applications of the various procedures, in fact, are subject to different types of needs.

Oxyacetylene welding, for example, is a method in which the high temperature required for melting the metal is obtained by burning a mixture of oxygen and acetylene; for this reason the oxyacetylene welding machine is reduced to a mere torch with regulator, to which the cylinder with the fuel gas is connected.

Tin welding, on the other hand, is mainly practiced in electronics, and requires small welders that require minimal installation power, but let’s go in order and try to examine in more detail the substantial differences between the various models currently on the market.

The oxyacetylene torch

The oxyacetylene welding machine, as mentioned before, is nothing more than a simple torch inside which oxygen and acetylene are mixed before being expelled from the nozzle, and can be at low or high pressure depending on the type of work to be done.

The torch was the most used welding system until the early 1900s, when the first examples of electric welders were introduced; nowadays, therefore, it is only used in plumbing for certain applications, such as brazing pipes and the creation of pipes and collars for example.

In the general context, however, torches are no longer used as welding systems, but are used in demolition and recovery, for cutting sheets and pieces of thick metal, such as beams, the hulls of decommissioned ships or the armor plates, just to name a few applications.

A curiosity regarding oxyacetylene torches is that some of the smaller and cheaper models, therefore intended for hobby use, are actually also used in the kitchen by many chefs, who use them to caramelize the surfaces of desserts or for other types of preparations.

Another typical use of torches is that of laying insulating sheaths on roofs and floors; in this case, propane or butane gas is usually used, since the flame has the sole purpose of heating and melting the bituminous layer of the sheaths in order to make it adhere to the surface to be insulated.

The oxyacetylene torches for professional use are usually sold in kits with nozzles of different sizes, and can have a cost ranging from 90 to 150 euros approximately, those for hobby use, on the other hand, have a price that varies from 10 to 90 euros depending on the chosen model.

Tin welders

The tin ones are the most requested by professionals and electrotechnical enthusiasts, among all the different welders sold online (here are the best models ). In fact, these are special welding systems, designed to perform precision and small-sized joints for the assembly of electronic components on the relative boards.

Also in this case there is a further differentiation of models within the category itself, ranging from the cheapest to the most expensive in a range from 10 to 100 euros and more, depending on the type and characteristics.

Unlike the torch, the soldering iron works on electricity but is characterized by a low installation power, from 30 to 80 Watts depending on the model, as the tin has a relatively low melting temperature.

In addition to electronics, tin soldering machines are also used by electricians to repair or install systems and control and distribution units; they are widely used in gold and jewelery, as well as in precision mechanics; in the hobby field, on the other hand, they are used above all by DIY enthusiasts and for artistic applications, such as the creation of sculptures starting from old recycled metal materials.

Electric welders

The welding systems par excellence, on the other hand, are the electric ones, commonly known as arc welders as they exploit the heat generated by an electric arc triggered between the pieces to be welded. Electric welders, in turn, differ according to the welding process they are able to perform, which can be electrode, bare or coated, or continuous wire, also with coating or not depending on the case, with or without the aid of inert gas and so on. Therefore, electrode, continuous wire, spot and plasma welding machines fall into the category of electrical systems.

Electrode welding machines are the most widespread and used in the world, as they allow you to join sheets, profiles, tubulars or pieces of metal of any type but of reduced thickness; They therefore lend themselves to a wide range of applications, from home renovations to use in workshops. Furthermore, the relatively small size and weight of electrode welders make them particularly suitable for outdoor use, therefore they are also widely used on construction sites.

The continuous wire welding machines, as the name suggests, instead of the electrode use a wire that is supplied continuously through the welding torch; they can weld thick metal pieces and the joints obtained are even better in terms of cleaning and resistance but, unlike the electrode ones, they are much more difficult to use and require an expert operator.

Both types of welding machines, including hybrid models capable of operating both electrode and continuous wire, can have a price ranging from 60 to 1,500 euros and more, depending on the economic range to which they belong, the type and destination of the machine. ‘use.

Spot and plasma welders, on the other hand, are specific models that are mainly used in the industrial sector. The former, in fact, are designed as stationary machines that perform welding points on pieces placed in rapid sliding between the tips of the electrodes.

The plasma welding machine, on the other hand, is based on the same principle as the continuous wire welding machines, with the difference that the arc reaches very high temperatures, in the order of several tens of thousands of degrees, and is used both for welding and for cutting of thick metal pieces.

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