Profile pipes are indispensable in the process of assembling frames for building structures. Greenhouses, a variety of greenhouses, gazebos and other objects erected with their help quickly and efficiently. However, everything is not so simple.

To bend such a pipe you have to use expensive special equipment, which is not always acceptable for a homemade master. Let's talk about how to bend a profile pipe at home.

Profile is considered a pipe having a different section. It can be rectangular, oval, hexagonal or square. The pipe has increased strength, because its faces take on the role of rigidity.

Profile products cope with significant bending loads, so that they are a good choice for the construction of the metal frame of buildings of the most detailed destination.

Raw materials for the production of profile pipes most often becomes high or low-alloy steel. Depending on the manufacturing method, electric welded, cold and hot rolled, seamless pipes.

Products vary the wall thickness and profile height. Such pipes can be used to make different parts in the form of frames, stairs and railings. Most often, the profile pipe is used in construction for the construction of arched structures and as a replacement of an iron bar when erecting frames.

Skills in the flexible tube tribes will be useful to homemade craftsmen wishing to equip the countryside:

Gallery of images

The simplest devices for cold bending

Consider how you independently make two very simple devices that will help bend profile pipe.

Mandrel for profile

The basis for the device will be the workbench. It is important that not only the work area, but the space around it was free. To secure the mandrel, you will have to perform several close holes in the table top of the worktop.

Actually, the mandrel or pattern is performed from plywood. However, this option is acceptable only if several parts are executed.

The simplest mandrel for the pipe is made of thick plywood or from the board. This template is enough for several bends

If you need to bend a large number of pipes on this template, the mandrel is best made from the steel corner. In some cases, the profile product must be bent at different angles.

For such a job, you will need several templates to prepare in advance. Before the start of operation, the mandrel is firmly attached to the base with clamps.

It is reliably fixed to bending the pipe. After that, bending is made. The operation is performed smoothly, without sharp jerks. The effort applied to the pipe should grow gradually. In the process of bending, the part takes the shape of the mandrel. This will require a significant effort.

Advanced bending plate

This is a convenient multifunctional device that allows you to spend high-quality profile flexible with your own hands. The device is a solid metal plate-based base attached to the pedestal. The latter with the help of fastening bolts is fixed on the floor of the workshop.

Set of steel mandrels for different radii

Plywood disposable billets

Mandrel for a narrow profile pipe

Alternatively, you can consider a similar device that is fastened to the workbench. After operation, the bending plate is easy to dismantle and remove or can be used as a stand for other plumbing operations.

For the manufacture of such a device, you will need a thick plate of metal. It is welded on the telescopic stand. For stops under bending, two holes are performed on the base plate.

They are put bolts-stops. They wear and fixed the nozzles of various radii, which allows you to curb the pipes as it is necessary. The clamping plate is cut from sheet thick steel.

The bending plate is desirable to equip the pressure plate made of durable metal. It will save the coaxiality of the profile detail in the process of bending

Its use is necessary that the coaxiality of the flexible part is not broken, since the bending profile pipe without a pipe bender can be accidentally deforming it in two different directions. The plate is fixed above the nozzles on the bolts-stops.

The simplest way of bending a profile pipe:

The methods of manual bending of profiled pipes are quite a lot. And they all have a general drawback: a very large effort is required for flexing them. A physically unprepared wizard may not cope with such work. Bending parts with the help of specialized devices is much easier, more precisely and does not require special physical efforts.

The problem is that the cost of such equipment is large enough. Therefore, to buy the device only in order to perform a one-time job is definitely unprofitable. The best option is to rent specialized equipment, which will allow for a small fee to get profile products bent exactly by template.

In demand in many spheres of life.

Of these, the designs of various products in industry, construction and everyday life are manufactured. Often, for these purposes, you have to give such pipes bent form with a certain deformation. The fold of profile pipes can be carried out with the help of special machines, called pipe bending.

Without a pipe bender, it is difficult to give the right form. They can be purchased ready-made, produced in industrial conditions, and can be made independently if the need for such a machine occurs periodically for homework. For this, it is important to know how you can make a device yourself for flexing profile products.

Apply two options for flexing profile pipes with their own hands: cold and hot.

Both of them pursue the goal to preserve the integrity of the profile form when flexing the product. For this, in contrast to the external squeezing force under the bending procedure, the internal space of the profile is filled with a certain substance that prevents squeezing.

With a cold method, such a substance is frozen water, and with hot - river sand.

FEATURES OF COLD FIG

Flexing the workpiece using water is usually used in winter with severe frosts. To do this, the profile tube on one side is hermetically closed with a cork plug, and on the other hand filled with water.

The product is left in the frost in a vertical position with a hermetic side down to the total water freezing. After that, the process of flexing the product to the desired radius is carried out.

Hot method of flexion

The basis of the method is the heating of the fragmentation area of \u200b\u200bthe profile product. It can be applied at any time of the year. The pipe from one end is also sealed, closing the cork or any submitted agent.

Then, on the other hand, the river sand falls asleep and close the end of the plug. The length of the length of the plug must exceed the diameter of the pipe about 2 times so that it can withstand the weight of the sand placed in the pipe.

The scene is marked with a chalk or marker and produce its heating. To disrupt the generated gases at the ends of the product, it is desirable to drill small holes.

When the site is heated to the desired temperature, flexing the pipe on the machine corresponding to the parameters of the product.

Important! When flexing the pipe, it is not necessary to allow sparking of metal.

The scheme of the hot method of flexing the profile pipe is shown in Figure:

Features of designs of machine tools for flexion of different profile pipes

Despite the ease of completing the flexible products, it is necessary to take into account their characteristics before proceeding to bending.

Select the design of the device for flexion should be tailored to the size and properties of the profile material. This is due to the fact that products of different diameters and wall thicknesses, as well as made of various metal alloys, have a different critical minimal bend diameter.

Its values \u200b\u200bare specified in special tables in which all parameters of pipes are taken into account. When the profile is flexed below the critical value of the radius, the strength quality of the metal in the bend is significantly reduced.

Table of technical characteristics:

The machine for flexible tube, made with their own hands, can have a different device. Its complexity depends on the parameters of the pipe and its characteristics.

For products with cross-section for up to 2-2.5 cm, you can use the simplest variants of the device using a concrete slab or a cooked template of the planned bending arc.

For cross-sections of the profile of larger, the design of the machine is more complex, it uses a bend method when squeezing the pipe during passage through the rolls on the like rolling mill.

Consider in more detail how to make such devices.

Simplified types of pipe bending

1. Using a concrete slab

To create a design, a concrete slab will be required, a diamond or a winning drill for concrete and metal pins.

The manufacture of the device is carried out like this:

• a schematic grid with cells of 4 × 4 cm or 5 × 5 cm is applied to the surface of the concrete slab;
• at the place of intersection of grid lines, the recesses intended for metal pins are drilled;
• pins inserted into cells are carefully fixed by concrete fill to prevent them from falling under the action of the load from the pipe.

The diagram of such a device is shown in the picture:

The process of flexing the profile is carried out in this way:

1. The pipe is introduced between two, nearby pins, and with the help of effort bends in the right direction. The bending radius can be changed by moving through the elements of the pins located diagonally.
2. It is necessary to apply a flexing force to prevent unnecessary profile deformation. To facilitate work, the profile can be subjected to a small heating.
3. Immediately after deformation, the pipe is not recommended from the device to secure the resulting bend. For the reliability, the combs are temporarily welded to auxiliary steel rod.

2. Using the template

The simplest device for profile products, in demand in the home application, is a method of bending along a predetermined pattern. You can bend not only products from aluminum alloys, but also steel pipes of small sizes.

The pattern is made of wooden boards having a thickness of slightly larger diameter (section size) of the flexible product. For the convenience of work, the template board is cut under the slope towards the table plane. The template itself is fixed on the table with screws.

In addition to him on the working plane of the table at a short distance from the template, the focus is fixed to hold the pipe.

Construction of roller machine

The principle of operation of such a machine is based on rolling the profile pipe through the moving rolls in which it becomes the desired bending under the action of pressure. The movement occurs with the help of two horizontal rollers installed on the base of the chapellor.

The homemade machine can be made by the following details:

• three rollers having an axis of rotation for flexion;
• profile channel for making frame base frame;
• drive chain;
• driven mechanism.

The procedure for making the machine must be as follows:

1. First you need to make a frame frame from a metal chapeller. The frame elements for the frame can be combined with welding, but for reliability, the design is better to fasten with bolts.
2. Vertically in the center of the horizontal bed, a design is established, having a form in the form of the letter P, upstairs which shaft is mounted with a coupling. In the center of the coupling, the stud is inserted on which the handle is welded, and the roller is installed on the side.
3. Two cylindrical rolls with rotating rollers are mounted on a horizontal base of the base of the machine at the same distance from the center.
4. The chain is attached to the rollers to bring the mechanism in motion using a manual drive.

Fastening rolls is carried out by bolts. To do this, the channel dries slots in the channel, allowing the rolls to move to change the adjustment of the bending radius.

Work on such a homemade machine is carried out like this:

• the profile tube is inserted into horizontal feed rolls;
• the rotation of the handle of the clamp presses the pipe with the third roll. As a result, the profile deformation occurs when passing in this zone.
• the initial deforming pressure will change the pipe configuration slightly, so the process of stretching through the rolls must be repeated before obtaining the desired bending.

The radius of the profile bending depends on the distance between the lower cylinders, which can be changed with the help of rollers by moving and fixing with the help of a stopper.

The question of how to bend a profile pipe, not using special equipment for this, many of those who are going to build a greenhouse on their homely plot. Such structures made of bent pipes not only pass significantly more light, but also differ in high stability and durability, if you compare them with structures from wooden bars. It seems that the proftrubube, creating an arched structure, is not easy, but if you understand the features of this process, it is quite possible to effectively perform it using the simplest devices.

What is the difficulty of flexing profile rental

The essence of the flexible metal rolled, regardless of the form of its profile, is that the profile pipes are given partial or full bend. Perform such a technological operation in two ways: acting on the bent pipe only with pressure or additionally heating the pipe of the pipe, in which the bend is performed. In the course of bending, two forces are simultaneously operating on the metal pipe:

• compression force (from the inside of bend);
• the strength of the stretch (from the outside of the bending area).

It is the impact of such multidirectional forces that causes complexity characteristic of the process of flexing any profile pipes.

1. The segments of the pipe material, which in the process of bending changes its shape, may lose the alignment of its location, which leads to the fact that individual pipes of the pipe will be located in different planes;
2. The wall of the proftrub, located on the outside of bending and exposed to stretching, may not withstand the load and burst.
3. The inner wall of the pipe, subjected to compression, can be covered with folds that resemble corrugations.

If you do not take into account the subtleties of such a technological process, then instead of bending the profile tube, you can simply minimize the product, irrevocably spoiling it.

So that this does not happen, it is necessary to take into account not only the characteristics of the material of the pipe, but also its geometrical parameters are the size of the section, the wall thickness, the radius to which the bend must be performed. The knowledge of the listed will allow you to choose the appropriate technology and bend the proftrube correctly, without resolving it and without receiving a corrugated surface.

The need for accounting profile

Categories of the profile pipeline include products having a different cross-sectional shape - round, square, oval or flat. Despite such a variety, for the construction of a greenhouse or a canopy mainly use rectangular or. This is due to the fact that on their flat walls is much easier to mount the external coating.

The range of modern profile pipes is characterized by a large variety. Their geometric parameters, the main of which are the cross-sectional area and the wall thickness, determine the plastic capabilities of the product. The latter characterizes such an indicator as the minimum allowable radius of rounding. It is this parameter that allows you to determine which the minimum radius can be bent a professional to be bent so that it is not damaged.

To determine such a pipe parameter with or a rectangular profile, as a minimal bending radius, it is enough to know the height of its profile. If you are going to bend a profile pipe with a cross-section in the form of a rectangle or a square, you should follow the following recommendations.

• Pipes, the height of the profile of which does not exceed 20 mm, can be bend in areas whose length exceeds the value of 2,5хh (H is the height of the profile).
• Products, the height of the profile of which exceeds 20 mm, can be successfully bend on areas whose length corresponds to 3.5xH and more.

Such recommendations will be useful to those who are going to bend profile pipes in order to make racks, canopies and various frame structures from them. At the same time, however, it should be borne in mind that the possibility of high-quality flexion of pipes affects the thickness of their wall. Products, the wall thickness of which is less than 2 mm, it is better not to bend at all, and if it is necessary to create structures from them to use welded connections.

At home, bend proftrube, which are made of carbon or low-alloy steels, can only be taken into account certain nuances. Such pipes after bending can sink and return to its original state, so the finished structures must be re-customized by the template. The magnitude of the skip characterizes such a parameter of profile pipes, as the plastic torque of resistance - WP. This parameter is indicated in the accompanying documentation (than it is lower, the less promotion profits in the process of their bending).

Features of the most popular methods of pipe bending

In production or homework, proftrube is bent both heating and cold condition. Heating, which is produced using a gas burner, significantly increases the plasticity of the metal, due to which less effort is required for bending. Pipes of a small section can be bent and without heating, because they are so different with a good plasticity.

Regulatory recommendations regarding the use of heating are available only for round-section products. So, heated before flexible the pipes, the diameter of the cross section of which exceeds 10 cm. In cases where the square or rectangular pipes are bend, it is necessary to navigate on their own experience or tips of other home masters.

1. Without preheating, the pipe is bent, the profile height of which does not exceed 10 mm.
2. If the height of the pipe profile exceeds 40 mm, they must be heated before flexible.

If at your disposal there is a pipe bender, with it, you can easily handle the task of cold flexible pipes, the height of the profile of which is in the interval of 10-40 mm. In the absence of such a device, it is necessary to solve the question of how to bend the pipe without a pipe-bender, after conducting uncomplicated tests. They will help you determine, you should heat the proftrub before flexible or not. These tests are carried out as follows. One end of the pipe is clamped into vice, and the second is put on a pipe with a large size of the internal cross section. If with the help of such a shoulder, it is possible to bend the pipe clamped into vice, you can perform this process without preheating.

Flexible pipes on various methods well demonstrates training video, but it will not be superfluous to pre-examine this process in all details.

Bending Prof Pedube with preheating

To bring the profile pipe with your own hands with a hot method, you must first fill it with sand. This will make the bend better and uniform. Because you have to deal with hot metal, all work should be performed in dense tarpaulin mittens. Bending itself, with the implementation of which can be found in the video, is performed in the following sequence.

• Both ends of the profile pipe must be closed with plugs that are made of wooden bars. The length of such plugs should be 10 times the width of their base, which, in turn, should have an area, twice the area of \u200b\u200bthe hole in the pipe closed with their help.
• After fitting the plugs under the inner section of the pipe on one of them, 4 longitudinal grooves are performed, which are necessary to remove the gas accumulating in the pipe when the fill-fill sand is heated.
• The proftrub plot, which you plan to bend, is required to be supervised.
• As a filler for a pipe, you need to use the sand of medium grain. If there is no purified building sand, you can take any, even from the children's sandbox, but it should be prepared accordingly. So, the sand is first sifted through a sieve with a cell size of 2-2.5 mm to remove gravel and fine pebbles from it, and the final sifting is performed on the sieve with the cell sizes of 0.7 mm. The final sifting is necessary in order to remove the dust inclusions from the sand, which can be sintered when heated.
• Prepared sand needs to be hungry at a temperature of 150 degrees Celsius.
• Before grazing sand, one end of the pipe is closed with a plug, on which there are no gas-sized channels. A funnel is inserted into the second end through which the sand prepared sand is poured. To the sand evenly and tightly filled the entire inner cavity of the pipe, when it is covered, it is necessary to tapping through the walls of the product using a wooden or rubber image for this.
• After full filling of the pipe with sand, its second end is also covered with a plug.
• A plot that will be heated for further flexion must be noted in chalk.
• The pipe must be fixed in vice with a template or in a pipe clina. It is important that the welded seam is, if it is on the surface of the product, turned out to be on the side. It is necessary to adhere to this requirement because the welds are undesirable to expose to compression or stretching.
• Plot pipe, previously marked with chalk, heat hot with a gas burner. After a complete warm-up, the pipe neatly, without making sharp movements, bend into one intake, applying efforts strictly in the vertical or horizontal plane.
• After cooling the bent pipe, the result obtained is compared with the template. If everything is fine, then the products are removed from the ends of the product and pour sand.

This method, which is easy to implement at home, is best used in cases where at the prom Profiter it is necessary to form a single angular bending. Multiple metal heating can lead to loss of its strength, and it is impossible to avoid it if you jet the pipe for its use as an element of arched design.

How to bend the pipe without preheating

Bend the profile pipe itself, without heating it before, you can, as with a filler, and without it. Do not require filling with sand or rosin pipes, the height of the profile of which does not exceed 10 mm.

There is another technique that involves the use of a sprocket with a dense navill of turns instead of the filler, which is inserted into the inner cavity of the prom and protects the walls of the product from the deformation, as well as from the excessive change in their thickness in the process of bending.

Those who need to bend profile pipes with their own hands, not previously heating them, you can use the learning video and the following simple recommendations.

1. It is possible to obtain the desired bending on profile pipes using the simplest devices - vice, mandrels, bending plates.
2. You can use for round-profile products. In this device, it is necessary to remake the working rollers, the shape of the excavation in which must correspond to the pipe profile.
3. It is possible to generate pipes most effectively and accurately with the help that can be purchased or made with your own hands.

Fixtures for flexible pipes

The question of how to bend the pipe without a pipe-bender will not cause difficulties if used to perform this operation the simplest devices. You can perform cold flexible pipes using the following devices.

• In cases where it is necessary to bend a soft (aluminum) or a steel pipe with a profile height not more than 10 mm, a horizontal plate is used with holes in which the stops are inserted - metal pins. With these pins and flexible products are performed according to the required parameters. This method has two serious disadvantages: low accuracy of bending, as well as that when it is used, it is necessary to apply significant physical efforts.
• Products with a 25 mm profile height is better bent using roller fixtures. The pipe is reliably fixed in the vice, and to that part of it, which must be bent, the force is applied using a special roller. This device allows you to get better bending, but also requires an application of physical effort.

An option that is called, an ambulance hand. The long lever of this is extremely uncomplicated device allows you to cope with rather thick pipes.

For forming on steel or aluminum promotional curvators, motionless rounded patterns are used on a large radius of curvature, which mount special clamps for fixing the product. On such an adaptation, the pipe is also hung manually, with an effort to lay it in the chamber of the template, the form of which exactly corresponds to the desired bend radius.

Plywood and metal brackets are everything you need for the manufacture of a bending template

Bending plate

In order to effectively bend steel or aluminum pipes at home, you can make an upgraded bending plate using the following guidelines.

1. The role of such a plate plays the panel, which is cut from a sheet metal of a large thickness.
2. The panel made in this way welded to the rack, which is installed on a special pedestal.
3. Two holes needed to install bolts that serve as a profile tube are drilled in the panel.
4. A special nozzle is installed on one of the bolts-stops, with which the bending radius is adjusted.
5. In order to ensure the coaxiality of the segments of the pipe adjacent to the split, over the workpiece placed the metal plate fixed by the bolts.

At that moment, when you do not use such upgraded pipe bending, its pedestal can be adapted to perform various plumbing operations.

Bending mandrel

For bending at home, profile pipe products, the height of the walls of which does not exceed 25 mm, you can make a special mandrel. To this end, it is better to use an overall workbench, on the surface of which there will be enough space for such a device. To select the optimal location of the element that locks the flexible pipe, often spaced openings are performed at one end of the workbench. For providing the desired bending radius, proftrub is answered by a special pattern that can be made of thick plywood or metal corner if you are going to use it often.

Application profilegiba

Of course, if you have a significant amount of work on flexible profile pipes, it is better to make a special machine for this, whose drawings are easy to find on the Internet. We will not take here to disassemble this question, since more than in detail is considered in the articles on the links below.

Do not do without such a machine and in the event that you need to bend pipes with a large cross section of the profile. The main working bodies of such a machine, distinguished by broad versatility, are three rolls, two of which are fixed motionless, and due to changes in the position of the third regulate the radius of the product bending. A chain transmission and handle that the operator rotates as a drive of such a device.

Obviously, the variants of devices allowing to effectively bend profile pipes for the manufacture of greenhouses, a canopy or other structures, quite a lot. Having considered these options and choosing from them that optimally comply with your capabilities and needs, you can always provide yourself with a convenient and inexpensive pipe bending device.

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Creating a bending of the profile tube by a professional builder or a regular owner can often meet in the process of construction or repair of any country house and cottage. Deciding to flexing the profile tube with their own hands in domestic conditions, the owner is always puzzled on how it is properly and reliably to organize a greenhouse design, an indoor terrace or a smoking room.

When creating such structures, it is products that are used so much more popular in front of pipes with a traditional round form.

Pipes having an ordinary section in the form of a circle bended with a conventional hydraulic pipe bender with special shoes and rollers for round blanks. In this case, the profile details on this machine are not possible, since its executive devices for round forms simply spoil profile - the blank cracks, breaks, or completely crushed.

Methods for folding profile elements

The profile tube can be bodied without any defects and do it yourself. For the manufacture of such curved profile parts there are many techniques. One of the common options is the bending of the profile billet using special devices - the so-called profilegi. However, the price of such equipment is quite high, which confronts the acquisition of such a special machine from a regular owner.

how to bend profile pipe without pipe bender

In the event of a rare need to manufacture bent profiles in domestic conditions, it is proposed to purchase special pipe benders for handmade, used both for round-cross-section pipes and profile blanks. The cost of such home equipment is approximately equal to 100 dollars. It is worth noting that when using manual tools to create benged parts, it is necessary to have the owner to have appropriate physical and moral training - work requires stamina and patience, but economically.

With the one-time need to perform folds on the billets, even manual mechanisms are irrational. In this case, it is recommended to purchase an already manufactured element on the market or you can order in the workshop or at the relevant enterprise, where a relatively low fee will be able to make any item from its own profile material.

With this solution, the task can not only reduce the cost of work and not to spend personal time and strength, but also to achieve the desired result - to get the item with a qualitative and correct fold of a certain diameter or form.

In each construction and not only, there are always folk methods. Figing profile blanks with your own hands is no exception. Only in this case there is an opportunity to produce bends, copper or polymer pipe blanks of a small size.

Flexion of profile products by means of pipe bend

Process specificity

In the case of independent manufacture of the bend, the profile blank must first determine the size of its cross section, the thickness of the walls, the material from which the part is made, as well as with a diameter or form of bend.

It is also necessary to take into account the conditions of the available production, which will be able to ensure maximum bending accuracy and the high quality of the parts produced.

The flexion of profile pipes occurs under certain limits of technical tolerances in the thickness of the walls and the cross section configuration. An important task is to prevent such defective phenomena, as the layers of the inner part of the flexible profile billet and crushing the transverse part of the workpiece.

Production of the collar

For the purpose of making bending, it is necessary to have a special pipe bender intended for bending with a cold stretching method. The stretching created by means of such a machine will give a shift of the neutral axis of the workpiece towards the bend. Such an effect when stretching the profile detail will make it possible to reduce the formation of the corrugated zone on the bend surface.

Located in the unit, the billet is clamped along the edges and is simultaneously stretched. At the same time, when moving a flexible template, the pipe begins to bend.

To flexing the workpiece of stainless steel without defects, deterioration of the quality and reduce the resistance of the parts of the part in the bend zone, such a process must be carried out under internal hydrostatic pressure. To do this, it is necessary to drown out the ends of the pipe plugs, inside of which the flooded liquid is located. Next, you need to move the flexible template to the center of the product, by means of which the bending of a certain shape or diameter is made.

The process of flexing with your own hands

You can make the bending of the profile workpiece with your own hands without any professional equipment and special tools. In this way, it is most often possible to achieve bend in fact relative to good quality.

Formation of bend by usual grinder and welding

To flexing the profile pipe, the first thing is necessary to have an ordinary grinder and a welding machine.

In order to flexing the workpiece, you must go through the following steps:

1. Determine the radius of the folding of the workpiece.
2. Along the flexible line of the profile detail, three planes with the same interval between themselves should be made.
3. Further, without much difficulty, you can bend the item.
4. Then you need to brew cutting areas.
5. Welding seams need to be processed and stabbed.

Flexing with the use of internal counteraction

To implement such technology, it is necessary to use such a means as a specially cooked spring. At the same time, it is necessary inside the profile pipe to introduce the spring of the rectangular cross section from a metal wire with a thickness of 1 to 4 mm, depending on the size of the flexible pipe. Next, you can start bending the element.

The size of the segment segments of the spring should be less internal sizes of the pipe cross section by 1.5-2 mm, to create the possibility of penetrating the spring inside the pipe without much effort.

After entering the spring to the place of the planned bending of the workpiece before flexion, it is necessary to heat the bend area by a soldering lamp. After that, you can make the bending of the product using a special blank with such a radius, which must match the necessary internal radius of the flexible part.

In order to flexing the profile detail for heating or water supply from copper, there is one relatively extraordinary way, fulfilled only winter time.

It is such a unique option in the following:

1. First of all, one edge of the copper pipe is necessary to clog the plug and fill it with water.
2. Then place the workpiece with water on the street in frost weather to the final freezing of water.
3. Next, make flexing the pipe in accordance with the bending pattern of a certain radius. At the same time, the pipe bent will be without much effort and without distorting its cross section.

According to the same scheme, it will be possible to bend the pipes of duralumin type, as well as from such a material as brass.

Bend without pipe-bend

Make the bending of a rectangular blank without a pipe bender can be used to be well dried and thoroughly sainted sand. Before flexing, it is necessary to bring a wedge from a tree into one of the ends of the pipe, equal to 10 to 20 cm. After that, fall asleep to the edge opposite open hole of the pipe with purified and dried sand and score a similar wedge there. Then you can begin bending the blank by the blanks of a certain diameter, which must match the planned product size.

With too sharp bends - when the radius is small, the flexion section is recommended to warm up through a burner device. Thanks to the edges in the pipe, the sand section of the product is preserved.

After performing bending, you need to smear one of the plugs, pour sand from the inside and snatch the second cork.

If you are in your private house or in the country, we have to arrange yourself, at least once you had to be engaged in the pipe. This is especially true if you need to build a gazebo, a greenhouse, for example, or something like that. Therefore, the flexible profile pipe with their own hands is always needed and important. After all, such a product is much justified to use than "round" pipes.

And there is one nuance. With a profile product, everything is somewhat more complicated than with a circular cross section, which can be bent pipe bend. After all, standard pipe bending are equipped with shoes and rollers of a rounded shape, designed for round-section. As a result of using such a machine for the profile product, defects may occur or the pipe is flattened. Video with similar "effects" is enough on the network.

Methods of flexing profile products

What to do is not to spoil the pipe, but bend it with your own hands? There are several methods. The easiest is the use of a specialist for profile pipes. Such a plan equipment - profilegables. True, there are so many such machines. It is not surprising, because any professional equipment is more expensive than domestic.

However, there is an alternative if you can say so. If necessary, in such a machine from time to time, you can purchase manual pipe bending, which is universally suitable for standard and profile pipes. At the same time, their cost is relatively low. However, you should be prepared for large physical exertion if you carry out the "manually" flexible.

If the pipe must be cut once, then probably there is no point in buying equipment. In this case, it is more expedient to refer to the specialists. It will cost much cheaper. In addition, such masters sometimes you can also purchase a finished product that will have the right form.

There is another option, how to bend the pipe without a pipe bender, "folk remedies. However, this method is often effective for small sections. These can be polymer, copper or steel products.

Features of bending pipe bending

How do you bend such a product as your own hands? It is possible to carry out the bend, given the material, the necessary bending radius, the amount of section and the thickness of the walls. In addition, you should also consider the necessary level of quality of the finished product.

Of course, it makes no sense to make drawings and schemes, however, the bend can only be done within the tolerance, given the amount of the section and the thickness of the walls. Also should not allow flatness of the cross section, as well as the appearance on the inner part of the fubs pipe.

Bending process

To make a bend, we need pipe bender. It is performed with stretching with a cold method. With this approach, the stretching causes a shift in the direction of folding the neutral axis of the pipe. As a result, the corrugated surface on the bend is actually excluded. There are various similar machines created according to individual drawings. However, the scheme of work in all is approximately the same.

When the pipe is placed in the device, it worst around the edges. Next it stretches and at the same time bend.

What do the flexible take place without reducing the quality of the product? For this, the process passes under internal hydrostatic pressure. Inside the pipe supplies a liquid, and the plugs are put on the ends. A bending pattern is fed to the middle of the product. He gives the pipe the right form.

Bending welding and grog

Make a flexible hand, without a pipe bender or other fixture, it is possible that you can get a good quality.

Alternatively, you can use welding and grinder. Consider the method for Read more. First calculates the bend radius. Next is evenly performed by the ranges of three sides. The product bends on the product, and the supreme places are brewed. Place of welding must be treated.

In such a simple way, you can get a profile pipe of the necessary form, and the tools seem to be needed minimal.

What to choose?

1 The type of machine is designed for radius flexible profile pipes.

Characteristics of standard machine:

The maximum pipe cross section is 40 x40x2, 50x25x2 mm.

Minimum circle diameters:

• 30x30x2 - 650 mm,
• 40x20x2 - 650 mm,
• 40x40x2 - 1800 mm,
• 50x25x2 - 800 mm.

Drive type manual.

Rollers hardened - all 3 pcs.

Price: 25000 rubles.

2 The type of machine is designed for radius bending of profile pipes, a round tube and stripes.

Characteristics of universal machine:

The maximum pipe cross section is 40x40x2, 50x25x2 mm.

The maximum cross section of a round tube 32x2.8 mm.

Band 40x4 mm.

Minimal diameters of the circle of profile pipes:

• 20x20x2, 25x25x2, 15x15x1,5 -560 mm
• 30x30x2 - 650 mm,
• 40x20x2 - 650 mm,
• 40x40x2 - 1800 mm,
• 50x25x2 - 800 mm.

The maximum arc diameter is unlimited.

Drive type manual.

Rollers hardened - all 3 pcs.

Price: 30000 rubles.

At the request of the customer for an additional fee, the machine is equipped with a time-type indicator for the manufacture of more accurate all subsequent billets.

For an additional fee, the machine can be equipped with electric drive 220-380V

Warranty 2 years

Contacts:

Tel: 8-919-831-25-14

Saratov region G. Engels.

Delivery across the Russian Federation.

Options for implementing the task exists today many. How to make bending in your particular case? You should focus on what conditions you have and requirements. If you need to do this one, then everything can be done with your own hands. If there is no desire, you can give a specialist. If such actions need to be performed often in the future, it is worth thinking about the purchase of equipment - pipe bending, and professional.