It is difficult to imagine a construction site on which welding is not carried out . This technology allows with a minimum of investment and in a short time to get a high-quality one-piece connection. It is in demand when it is necessary to mount and dismantle various metal structures, lay pipelines and perform other types of work, for example, when repairing vehicles. Moreover, in each case, a technology is developed that determines the procedure for the formation of a welded joint, a list of equipment and materials, as well as the qualifications of workers.
The human factor is important. Agree that there will be a difference in the quality of joints formed by welders of 6 and 4 digits. In the second case, even with the passage of visual inspection, it will be possible to identify defects visible to the naked eye. That is why welding work must be performed exclusively by qualified personnel who have undergone appropriate training, and therefore have the necessary skills. With this approach, all stages of control will be passed, and the formed connection will withstand the loads applied to it for a long time.
It is worth noting that welding can be of various types. The most widely used, of course, are electric and gas, but if necessary, you can also resort to ultrasound, laser and cold. In the latter method, welding is carried out at a temperature below recrystallization. In this case, the connection is formed as a result of the deformation of the metal that occurs under mechanical pressure. An example is spot welding. For its implementation, it is necessary to have special equipment - the so-called "pincers".
Also, welding can be performed in various planes and can be of various types. The connection, for example, can be butt, point and suture. For each specific case, it is necessary to choose the best option. If welding is performed along the entire plane of contact, then we are talking about the butt joint, in some places - the point. The latter option is often used at the preparatory stage of the formation of the structure. It allows you to ensure the correct relative position of the connected elements. After that, a continuous weld is formed , consisting of overlapping or non-overlapping individual points. In the case of the first version, a strong and tight connection is obtained.
If we talk about how much welding work costs, then no one can give a definite answer. For the formation of metal structures from the same alloys, various electrodes can be used, which will be similar in their chemical composition, but will vary in cost. The price per kilogram of such materials often indicates their quality. Using products only proven and well-known brands, you can perform welding work of any complexity. True, if qualified personnel are involved.