Cutting profiled sheets with metal scissors

Corrosion protection of edges

Even the use of special tools for cutting corrugated board does not guarantee complete protection against damage to the covering of the corrugated board. Only in profiled sheets of galvanized steel of the 1st class of zinc coating thickness, the presence of molecules at the cut creates a barrier that prevents metal oxidation.

Therefore, in order to avoid shortening the service life of the corrugated board, it is imperative to apply a special anti-corrosion mastic to the cut edges. In addition, you can also paint these places with paint in the color of the protective coating of the profiled sheet. Fulfillment of these simple requirements will reliably protect the edges of the corrugated sheets at the fit points, ensuring the reliability of the profiled sheet throughout its entire service life..

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Hand-held circular saw

A hand-held circular saw is used to cut corrugated board using a disc with carbide teeth. With the help of a circular, cuts are made along a curve with the required radius of curvature.

The disadvantage of this tool is that the protective layer burns out due to powerful revolutions. There may also be jagged edges.

How to properly cut corrugated board using a circular?

For smoother cut edges, you will need a plywood jig. A groove is cut in the center of the plywood, a kind of landmark.

On a sheet of corrugated board, cut marks are made on both sides, then lie down and press the plywood jig tightly and cut is carried out. The metal does not melt, but is poured into small sawdust, which is very convenient. Circular is more practical for cutting large profiled sheets.

How to cut a profiled sheet to maximize the preservation of the protective properties of its coating?

Many builders prefer to use an electric saw with a profiled sheet cutting disc. This tool has a number of advantages:

  • The rotational speed of a circular saw is almost 2 times less than that of an angle grinder, therefore, the metal of the profiled sheet under the action of the teeth of the disc for cutting corrugated board does not melt, but is removed in the form of small sawdust.
  • The ability to quickly cut a large number of sheets
  • You can buy a disc for cutting corrugated board in any building supermarket, in the same departments where abrasive cutting wheels are sold.

However, be very careful when using a power tool with a rotating wheel, as metal pieces formed during cutting can cause injury. Therefore, this tool requires certain skills to work with it and is not suitable for beginners..

If you need to cut a small number of sheets, then a classic tool for cutting profiled sheets – a hand metal hacksaw – is perfect for you. It is extremely easy to use, allows you to make a cut of absolutely any shape and is safe even for a person with zero construction experience. Of course, it is also possible to get injured from using a hand saw – however, such an outcome is extremely unlikely compared to other tools..

But this method also has its drawbacks. The main one is the large amount of time needed to complete the work. In addition, you will need a special table for cutting corrugated board..

Another option is to use a hand or electric saw. With the help of them, the work will be done faster, however, with their help, you can cut corrugated board only along a straight mowing line..

Unlike the previous method, cutting the profiled sheet with a jigsaw allows you to make curved cuts of any shape. This adjustment is often necessary when installing roof coverings in the places of passage through the roof of ventilation and chimneys. However, before cutting the profiled sheet with a hand or electric jigsaw, you need to carefully mark the sheet so as not to be mistaken with the dimensions of the cutouts..

The disadvantage of this method is that cutting the corrugated board with a jigsaw is possible only with a profile height of no more than 20 mm. When cutting higher profiles, the blade tears metal and often breaks.

Finally, if you need to adjust the profiled sheets of small thickness, you can use the scissors to cut the corrugated board. It can be either ordinary manual shears for cutting sheet metal, or special electric shears for cutting profiled sheets..

cutting, profiled, sheets, metal, scissors

Shears for corrugated board can be of three types – these are punching, knife and slotted. The most accurate cut is obtained if you use slotted shears for the profiled sheet. They are equipped with a special head that allows you to make an accurate cut without any deformations and distortions..

Electric shears are very popular among professional builders. They are considered one of the most convenient tools for cutting profiled sheets..

In addition to conventional manual and electric shears, nibblers are also used. They cut the profile sheet in two parallel straight lines, which avoids bending the sheet. Before cutting the corrugated board, using a special handle, the matrix holder can be turned at an angle of 90 ° to the cutting line of the cut. This allows you to cut a profile that is bent at right angles without burrs..

The only drawback of these tools is their high cost and, most importantly, an extremely narrow field of application. If cutting corrugated board is not your daily routine, then it makes no sense to buy nibbling or electric shears..

Many roofers use in their work such a tool for corrugated board as drill bits. If you have certain skills and use a cordless drill, such a nozzle is very convenient for cutting and adjusting the profiled sheet in hard-to-reach places.

As you can see, the choice of possible instruments is quite large, and each of the options is optimal for a certain situation and loses to analogs in another. Therefore, it is quite difficult to say unequivocally what is better to cut corrugated board without reference to a specific task. How to cut a profiled sheet in each individual case is decided by a specialist, taking into account the complexity of the shape of the cut, the ability to access it and his personal skills and preferences.

How and how to cut the profiled sheet? Video lessons

The profiled sheet is covered with several protective layers – galvanized, anti-corrosion, primer, decorative polymer. Violation of their integrity will lead to oxidation and rapid destruction. The greatest harm is caused by sparks and heating to high temperatures, which causes the polymer layer and steel to melt..

How to cut corrugated board?

Decking has a lot of advantages, one of which is the ease of processing this material. Since the profiled sheet has a small thickness and light weight, it can be adjusted directly on the construction site. And for this you do not need to purchase a special machine for cutting corrugated board, a portable hand tool is quite enough.

But, despite the apparent simplicity, cutting corrugated board has its own characteristics. This is explained by the fact that, unlike conventional sheet metal, a profiled sheet is a layered cake made of a metal base and multilayer protective and decorative coatings..

The destruction of protective coatings when cutting corrugated board will inevitably lead to active corrosion and significantly reduce the service life of structures made of profiled sheet. Therefore, it is very important to know how to properly cut corrugated board in order to prevent significant damage to the zinc layer and protective paint..

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Manual power tool for cutting corrugated board

The most popular, practical and quick to use are power tools. angle grinder, jigsaw, electric shears and hand-held circular saw can be used for cutting Chishminsky profiled sheets.

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Is it possible to cut corrugated board an angle grinder?

The greatest harm to the protective coating of the corrugated board is caused by heating to a high temperature that occurs during the cutting process. Therefore, the use of gas-cutting equipment for these purposes is completely excluded. For the same reason, you cannot cut the corrugated board of the angle grinder..

The fact is that when cutting with a high-speed tool with abrasive wheels, the metal in the place of the cut simply burns out. Together with it, the protective coating also burns, and not only along the mowing line of the cut, but on both sides of it. The width of the damaged area, as a rule, is 3-5 mm, which leads to the occurrence of the so-called edge corrosion..

In addition, sparks flying out from under the abrasive circle are dangerous. Due to the high temperature, they can damage the polymer coating at a distance of several tens of centimeters from the incision site..

The cutting of corrugated board with an angle grinder is possible only in one case – if, before cutting the corrugated board, the abrasive wheel is replaced with a cutting disc for corrugated board with fine teeth. However, even in this case, it is not recommended to use this tool, since such a measure will simply reduce the amount of damage, and not remove it at all..

Nibblers

A more precise cut can be made with a nibbler. Their principle of operation is based on the puncture of small diameter holes. The closest analogue is an office punch.

To work with nibbling scissors, the sheet of corrugated board must be suspended. Using a drill, a hole is formed into which the working head of the scissors is inserted. Pressing the handle sets the punch in motion, which pierces the metal. After the hole is formed, the working part moves in the direction of the cut.

Characteristics of the nibbler:

  • Punch dimensions;
  • The maximum and minimum permissible thickness of the cutting material;
  • Handle configuration.

Average .

Features of material cutting

It is allowed to cut corrugated board with different types of tools, but it is important to carry out this process in such a way that the integrity of the sheet is not violated, and even and attractive cuts are obtained..

Important! The profiled sheet is a thin product, therefore, careless cutting may damage it, and it is also covered on top with various protective layers formed from polymers or galvanized steel, therefore it is not allowed to use standard cutting methods for this material.

Cutting of corrugated board by high-temperature methods is also not used, but this is due to the fact that although the coating is resistant to temperature changes and has high strength, an excessively high temperature leads to its burnout, therefore, both the coating itself and the sheet are damaged.

Many people are interested in whether it is possible to cut corrugated board an angle grinder. This tool is not suitable for the material, since the construction, equipped with an abrasive wheel, significantly spoils the coating, and after work, the corrosion process begins soon on the cuts.

Important! It is allowed to use an angle grinder only when using a special disc equipped with carbide teeth designed for cutting various metal products.

The specifics of the use of a hacksaw

Another way that you can cut the sheets involves using a special hacksaw for metal. The advantages of this process include:

  • the process is fast;
  • an accurate result of work is provided;
  • no chipping appears on the cut;
  • the process is considered simple, therefore it is easy to do it yourself.

The disadvantages include the fact that it is difficult to cut off an element along curved markings..

The whole process of work is divided into stages:

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  • a special cutting table is being prepared;
  • a sheet of corrugated board is fixed to it;
  • markings are applied to the material;
  • on this mowing line, the cutting of the element begins with neat and correct movements.

Thus, all the work will be done quickly enough, but if you need to cut a lot of sheets, then this method is not suitable, since people who cut metal products with a hacksaw get tired quickly.

Profiled sheet cutting: an overview of popular tools

Decking is a popular material used to form roofing on different types of roofs. It has many advantages, resistance to atmospheric factors, low cost and long service life. Its installation is often done by hand, which allows you to significantly save on wages for specialists. But at the same time, it is almost impossible to do without cutting this material. For the process to be correct, it is important to decide how to cut the corrugated board, as well as how to carry out this work.

Important! Difficulties with the correct cutting of this material lie in the fact that if the procedure is performed incorrectly or without taking into account certain nuances, then a corrosion process will begin on the edges, deteriorating the parameters and appearance of the coating, and often leading to its complete destruction.

The nuances of using scissors for metal

Shears for cutting corrugated board are used only in some cases when it is necessary to cut elements across the wave. Only this tool can cope with such a specific task..

The advantages of using the tool include:

  • with the correct use of scissors, even and thin stripes are created;
  • work is done quickly and easily;
  • almost always a high-quality result is provided, even if the work is carried out by a beginner;
  • it is allowed to cut the sheet across the wave, and at the same time it will not be damaged.

The disadvantages include the difficulty of cutting the sheet along the wave, and almost always slightly uneven edges are obtained..

It is necessary to work in the same way as using other tools, therefore, markings are applied to the sheets, they are fixed on the prepared surface, after which evenly along the mowing line of the marking, the element is cut with scissors.

Additionally, electric scissors and a hand-held circular saw equipped with a fine-toothed disc can be used for work..

Using a hand or electric jigsaw

This tool is considered an ideal choice when you need to obtain curved cuts that cannot be obtained with other metal cutting tools..

Important! It is allowed to buy both a manual and an electric jigsaw, and the first option is considered optimal with a small amount of work.

For the correct execution of the procedure, the following rules are taken into account:

  • the cutting process is carried out at high speeds;
  • by all means the nail file must be equipped with fine teeth;
  • it must be designed for cutting metal;
  • cutting is performed by reciprocating movements, and the tool is tilted to the sheet in the longitudinal direction.

The advantages of using this tool include the low cost of the tool and the ability to obtain unusual curved cuts. The disadvantages include a rather high complexity of work, and especially when cross-cutting a sheet, the corrugation of which exceeds 25 mm in height.

Important! It is undesirable to use a jigsaw if you want to cut thin strips, since the quality of such work will be low and you will have to spend quite a lot of time on the process.

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If an electric model is used, then when using it, the edges of the metal sheet, as well as the polymer coating, heats up significantly, therefore, after completing the work, you will certainly need to process all sections with a special protective enamel.

Features of using the angle grinder

Often it is required to cut a small part from the sheet, so people, without hesitation, use an angle grinder, not understanding how it negatively affects the material. It is allowed to use this tool only if it is equipped with a special disc used for cutting metal.

Important! It is optimal to purchase special discs, called products for cutting profiled flooring, since they have an insignificant thickness, and their teeth are made using carbide materials..

After the cutting of the profiled sheet is completed, by all means all the cuts are processed, which requires processing with special paints that prevent the corrosion process.

To shorten the work process, some people tend to cut several sheets at once using diamond-coated discs for this, but such work in most cases leads to serious metal disturbances..

The advantages of using an angle grinder include the speed of implementation of the process, but there are much more disadvantages:

  • an angle grinder is represented by an abrasive tool, therefore, with its help, you can easily damage the sheets, since during cutting, hot metal particles appear, falling on the polymer coating, therefore they burn through the material, which leads to the occurrence of a corrosion process;
  • after cutting, uneven edges of the material appear, so such shortcomings have to be eliminated, and this also takes time and effort;
  • during work, an unpleasant and strong noise appears, as well as an unpleasant odor, which negatively affects the mood of the employee himself and the people living nearby.

Thus, if an angle grinder is nevertheless chosen for work, then a special disc for cutting corrugated board is certainly purchased for it, otherwise the material can be easily and significantly damaged, so it cannot be used to create a roof covering.

Material protection against corrosion

After the sheet cutting process, it is required to protect all the resulting sections from corrosion. This will prevent material destruction..

For this, it is recommended to use special protective anti-corrosion mastics. They are applied to the edges of each sheet, after which these areas are painted over with high-quality paint, selected in accordance with the color of the corrugated board.

Thus, it is quite easy to cut a sheet of corrugated board. For this, different materials can be used. Having figured out how to cut corrugated board, even a beginner can cope with this work. It is advisable to choose a tool depending on the experience of the employee, the planned amount of work and the need to obtain even or curved cuts. After cutting, it is required to take care of protecting the sheets from corrosion, for which special protective equipment is used.

Cutting corrugated board. how to cut the profiled sheet so as not to spoil the material

No one will argue that today corrugated board is an extremely popular (and often simply irreplaceable) material for construction and decoration. In this regard, for many novice builders, the question of how to cut corrugated board becomes very important, because, despite the acceptable cost of its sheets, damage to the covering of the profiled sheet can negate all the advantages of using this material and significantly slow down construction.

How to properly cut corrugated board, what tools are used for this and how to process the cut in order to avoid corrosion, is described in this article..

Cutting corrugated board with scissors (conventional and electric)

Simple shears for corrugated board are used when it is necessary to carry out small work related to the installation of flooring, the construction of garages, gates and fences. Electric shears are used for a wider range of tasks, however, when an even cut edge does not matter.

How to cut corrugated board with scissors for metal, see the following

The advantages of both simple and electric shears for cutting corrugated board are fast, easy and high-quality cutting of thin and even strips, as well as cutting across the wave without damage.

Disadvantages of scissors for cutting corrugated sheets are uneven and rough edges of the cut. In addition, the low flexibility in the longitudinal direction makes it very difficult to cut the corrugated board along the.

Cutting profiled sheet with a hacksaw for metal

A fairly economical, convenient and popular way of processing corrugated board is a hacksaw for metal.

The advantages of cutting corrugated board with a hacksaw are accurate and fast cutting, no chipping and burrs, the ability to work independently without much physical effort. Usually, builders use a hacksaw to work with fences, gates, small roofs and other structures that require a small thickness of corrugated board.

The disadvantages of cutting corrugated board with a hacksaw for metal are the impossibility of making curved cuts and the need for a special cutting table to fix the material. Thus, in the case of complex cutting work, in addition to a hacksaw, you should provide for the use of another tool. However, all the disadvantages of a hacksaw for metal are successfully covered by the advantages of this method..

What is the difficulty of cutting profiled sheet?

The profiled sheet is a rather thin product that is easily damaged during the cutting process. The second feature of the corrugated board is its coating with a layer of galvanized and polymer, due to which it becomes impossible to use conventional methods of cutting sheet metal sheets..

High-temperature methods of metal processing in this case are also not suitable, because the covering of the corrugated board, no matter how strong and resistant to unfavorable natural factors, it easily burns out under the influence of high temperatures. You can not cut the profiled sheet and abrasive wheels, as they severely spoil the coating, which leads to the formation of corrosion. So, what can and should be done to cut corrugated board?

Cutting corrugated board angle grinder

Since an angle grinder with an abrasive wheel, as already mentioned, is not suitable for a profiled sheet due to severe damage to the coating, this tool can only be used in a set with special discs for cutting corrugated board, which are thin cutting wheels 1-1.6 mm thick with teeth made of tungsten carbide materials.

To avoid corrosion, after cutting the profiled sheet, the angle grinder must be immediately treated with special paints..

The advantages of cutting corrugated board an angle grinder are the speed of performing all operations and the relative ease of cutting the corrugated sheet.

The disadvantages of cutting corrugated board an angle grinder are torn edges and a strong, very unpleasant soundtrack. Even if you use a special disc for cutting corrugated board, an angle grinder, in any case, is an abrasive tool, because the hot metal particles formed during the cutting process fall on the polymer coating and burn it, creating preconditions for the appearance of foci of corrosion.

In addition, the torn edges of the profiled sheet after cutting require additional work to remove burrs. All this makes the angle grinder far from the best tool for cutting corrugated board..

Cutting corrugated board with an electric jigsaw

The jigsaw is used for corrugated board, the height of the corrugation of which starts from 25 mm and is combined with a short length. Cutting with an electric jigsaw is carried out across or along the sheet, however, it is necessary to firmly press the profiled sheet so that it does not rattle.

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Cutting should be done at high speeds using a fine-toothed saw specifically for metal. In case of high speed, a reciprocating operation with a longitudinal inclination of the file is recommended..

Advantages of cutting corrugated board with a jigsaw – low cost of work.

Disadvantages of cutting corrugated board with a jigsaw – inconvenience of transverse cutting of corrugated sheet with corrugation from 25 mm, practical impossibility of cutting thin strips, strong burning of the edges of the metal sheet and protective polymer coating, strong noise during operation.

How to bend corrugated board?

In addition to cutting, the corrugated board can be bent, which allows you to significantly expand the possibilities of creating bent products for decorating wall corners, cornices and roof ridge.

To obtain a transversely bent profile, the corrugated board must be bent at right angles to the profile direction, and if a bending industrial unit is used for this when organizing mass production, then for a small-scale production process it will be enough to purchase a simple manual bending machine.

The most common design of this tool is considered to be a rotary one with a bending beam, and if you wish, you can complete this device with any additional functions that allow you not only to bend the corrugated board, but also, for example, to cut it.

Jigsaw for cutting metal sheets

The tool is used to cut straight and curved segments. For work, we choose a special blade for metal with a minimum pitch and tooth height. In addition, the width of the saw should not exceed 4 mm if it is necessary to cut small radius curves..

We use an electric jigsaw:

  • for a profiled sheet with a height of no more than 40 mm;
  • for longitudinal and cross-cutting of small sections;
  • when cutting along a wave of long sections, we use a manual clamp to eliminate sheet vibration.

The disadvantages of the method include:

  • limitation of the processed sheet in thickness due to the length of the saw blade;
  • low cutting speed and high noise level;
  • fluctuations of the material from the saw stroke, which affects the accuracy of the cut.

The jigsaw is recommended for cutting holes, grooves and other complex geometric elements..

Circular saw for cutting corrugated board

A circular saw resembles a turbine in principle of operation, but in comparison with an angle grinder it has a number of advantages:

  • cutting speed is 2 times lower, which makes it possible to exclude melting of polymer soybeans and burnout of zinc;
  • under the influence of the saw teeth, small chips are formed, which are easily removed;
  • accurately performs straight cuts at high speed;
  • discs for cutting thin sheet metal at a cost commensurate with the abrasive material for a grinding machine;
  • there is no spark;
  • the cut is smooth without burrs.

The use of the tool requires working skills. Maximum efficiency is achieved when cutting profiled sheets on a workbench or in special clamps. Not applicable for cutting complex geometric shapes, holes.

Electric scissors

It is the most convenient tool for cutting sheet metal. It combines the precision of a hand saw, the speed of an angle grinder or jigsaw and the quality of a circular saw. Electric scissors can cut almost any broken and smooth curves, holes, grooves and other geometric shapes. The battery-powered modification allows installation and adjustment of corrugated board without power supply directly on site. The disadvantage is the high cost of the device.

Cut corrugated board angle grinder

Cutting the profiled sheet using an angle grinder is performed with a special disc. The use of an abrasive tool is not recommended, as it leads to negative consequences:

  • the polymer layer is destroyed by heating the metal at the cut;
  • the galvanized layer burns out;
  • sparks generated during operation damage the surface of the material over a large area.
cutting, profiled, sheets, metal, scissors

High-quality cutting of the profiled sheet with a turbine depends on the skills of working with the tool. For cutting we use a high speed, which eliminates burrs, but causes strong vibration, which affects the accuracy. We use an angle grinder exclusively for cutting straight long segments. Such operations are performed at high speed. It is not easy to cut complex shapes, and the joining of angular cut lines depends on the skills of using the tool.

The main disadvantage of cutting corrugated board with a grinder is considered to be an inaccurate coincidence of the mowing line of the cut with the markings. Compliance with safety regulations precludes the use of the tool directly on the installation site. It is forbidden to cut the profiled sheet, holding the impeller in one hand..

Shears for metal for profiled sheets

The corrugated board can be easily processed using conventional metal shears. Use a hand tool or a modification with a mechanical and electric drive.

Scissoring has the following benefits:

  • allows you to cut the material into strips;
  • cross cut is performed without deformation of the edge;
  • fitting work is carried out directly at the installation site;
  • allow you to cut geometric shapes of different shapes from the profiled sheet.
  • it is inconvenient to use if the place of the cut (line) is located near the base of the wave;
  • long sections are not straight;
  • when cutting a sheet with the edge of the blades, a burr is formed.

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We use scissors only for adjusting the sheets in place. Cutting a lot of material takes a long time.

How to cut corrugated board – an overview of all the possibilities

Cutting thin sheet profiled steel is a process that requires the fulfillment of two conditions:

  • relative accuracy of the cut;
  • minimal damage to the surface and edge of the material.

We fulfill these requirements using a hacksaw, a grinder (angle grinder, impeller), electric jigsaw, circular saw, scissors.

Cutting the profiled sheet with a hacksaw

This is not the most convenient way, but it is considered acceptable for the prompt execution of work, cutting out small elements, cutting edges and other operations. Not every tool design can be used to cut sheets. So, a hacksaw on an arc frame will require bending one of the sides of the sheet to pass along the mowing line of the cut. For work, it is better to use a canvas fixed by a console.

Benefits:

  • cut is obtained without burrs, smooth;
  • operation time is minimal for cutting small sheets;
  • no electricity supply required;
  • work can be carried out directly at the installation site.

Disadvantages:

  • difficult to make curved cuts and change the trajectory;
  • for precise work, a rigid fastening of the sheet is required;
  • impossible to cut holes.

We choose a hacksaw blade designed for cutting metal with a minimum size and maximum tooth frequency.