What is metal bending?

Certainly, the metal pipes of a smalldiameter can be bent and with the help of ordinary vice. However, what about the metal roll with a sufficiently large diameter? For such purposes, specialists use machines, with which it is possible to make fast bending of such products without any deformation or damage. And they are called simply - benders.

It is with the help of such machines is flexiblesheet metal and pipe. By the way, this device operates taking into account the specific thickness and plasticity of the steel from which the part is made, and also with the definition of the radius of curvature. How does bending of metal occur and what tools are involved in it?

Varieties of methods for bending steel plates

This process can be carried out both manually,and automatically - with the use of special technical equipment. Metal bending with its own hands is a complex and time-consuming process that takes a lot of time and effort. This treatment involves using hammer and pliers. Of course, with such instruments it is impossible to bend the metal at a particular angle, preserving all the proportions and configurations of the part. However, for products of small dimensions and diameter, this is quite enough. Thin metal is bent with a special kyanki.

Industrial devices for bending of metal

As for professional equipment, it is necessary to note the following devices for bending metal:

1. Roller machines.
2. Bending presses.
3. Rollers for bending.

The latter, in turn, are further subdivided intoSeveral types and can be both manual and hydraulic. Recently, the industry began to use more modern devices - with an electric drive. Used rollers for giving the leaf a cylindrical shape. Often with the help of this equipment, chimneys and pipes are treated, as well as other voluminous parts.

With the help of a press brake, the bendingsheet metal. Here it is necessary to note the fact that with the development of technologies, modern machines are able to produce complex parts in one working cycle with several bending lines. In this case, the change of important parts of the apparatus (bending elements) occurs very quickly, which allows you to reconfigure the press for another product in the shortest possible time.

Application

Who needs a metal bending? The procedure of bending steel products is often used in small industries, as well as in households and households. In the latter case, similar machines are used for bending profiles of different sizes, prefabricated partitions, channels, corners, hull products, gutters, slopes, steel frames and many other metal products.

In addition, various presses and machinesare used for the manufacture of sewer and water pipes. Recently, their configuration has become so complex that without the use of special equipment here simply can not do.

It should be noted that the machines for bending metalare also designed for processing copper and aluminum products. Even this equipment can bend the material, which has a paint and zinc coating. And thanks to the appearance of mobile machines, the work on the processing of sheet products can be carried out directly on the ground, and this is a significant time and cost saving, which would have to be spent on transporting devices.

Bending of metal by own hands

In the household, there are several types of pipe processing by one's own hands:

1. "Bracket" - when the product resembles the letter "P".

2. "Kalach" - the pipe is bent in a semicircle.

3. "Compensator" - is used to bypass obstacles.

4. "Duck" - a bend by the type of the English letter "N" (most often used in plumbing).

For the treatment of pipes with their own hands most oftenA plate with holes is used, into which the prongs (the stops for the parts) are installed. However, this method is not highly efficient, and therefore is only suitable for products having a diameter of 1-1.5 centimeters. Thicker tubes are treated cold with a fixed mandrel.

Bending of duralumin, brass and copper products,in contrast to ordinary sheet metal, has some features. Before the treatment, the product data is usually annealed at a temperature of 350 to 700 degrees Celsius (depending on the specific material) with air cooling. In this case, the pipe is filled with special molten rosin or paraffin, after which the product is allowed to cool. After the bending procedure, the filler is caught, since the heating of the middle of the part can cause its breaking.

So, we found out how the metal bends and what machines are used for this.