Cutter sheet material Parts are performed using various tools. Roller cutting scissors sheet metal Evoid popularity, the trend is explained by the simplicity of construction and high performance. The device is applied in industries and a small workshop.

Scissors

The purpose of the roller knives is to cut the steel sheet with a thickness of up to 1 mm. They are needed on a plot for the production of ventilation boxes, when working with roofing metal, during the construction of the fence and arrangement of the roof.

The mechanism is used to obtain semi-finished products under the subsequent flexible profiles. various destination. Equipment is installed in auto repair machine for car body. In auxiliary production, prepare blanks for assembling racks and cabinets.

Scissors with rollers successfully replace manual option or guillotine due to a number of advantages:

• Compact dimensions and low weight.
• Simple device.
• Convenient to use.
• Just configured.
• Suitable for working with sheets from miscellaneous material: Aluminum, tin, steel, roofing iron.

The processed product is obtained with a clean cut in the absence of burrs and bends. Sheet type of metal cut with such a device is easy.

Scissors can be purchased in a specialized store or make independently. It all depends on the volumes performed and the economic component. With the norm of daily cutting of 30-50 meters and the industrial sample will be required.

Description of scissors

The task in the separation of the metal sheet on the part is solved by the destruction of the strength ties on the local segment.

The power unit consists of two cutting rollers with multidirectional rotation. The cutting edges are lying in the same plane. When rotating, the rollers are pressed into the surface and cutting due to the deformation of the shift. The supply of sheet blank on the tool occurs by friction knives about metal.

The design of the cutting mechanism includes two rotating rollers located one over the other. Depending on the execution of the cutting part, roller knives distinguish:

• With one inclined edge for direct longitudinal cutting and cutting round and annular blanks.
• With parallel position of knives, performing cutting material with high quality strips. Most often.
• With several inclined edges for comfortable cutting of curvilinear, round and annular shapes with a small radius.

All types of scissors provide cutting of sheet material with high quality, without the need for subsequent stripping of the cropped edge.

To increase productivity and obtain a smooth cut, the housing with roller knives is installed on a stationary machine.

Equipment for cutting includes a bed with support surfaces, snap for fixing the material and roller knife. The latter contains a steel sorting housing, an overhead handle, cutting rollers, gap adjustment mechanism in several planes.

The material for cutting disks is the tool steel.

The manufacturer lays the work resource on average 25 km to cut a sheet metal with a thickness of 0.5 mm. With an increase in thickness, the resource of the work is proportionally reduced. The cutting element is subject to a bulk, which significantly increases the period of active operation.

How to make a roller knife

The purchase model of roller scissors even the most simple design is unprofitable for acquiring into a small workshop or private economy. You have to use it infrequently, but it is worth the device expensive. Optimal decision is the manufacture of scissors with their own hands.

The design of the mechanism may be different, but there will always be a cutting knife in the form of a roller. The selected material for the manufacture of knives determines the performance of the device and the quality of the cut. Knives should be durable and reliable, with the surface hardness of a significantly superior hardness of the material being cut. Otherwise it will not work high-quality cuts, the edges will have to additionally process.

Homemade roller knives are made of bearings. For this, the ends are sharpened to make a cutting edge. Drive roller fasten on the handle. When working it, the knife is pressed into the workpiece. The bottom roller is installed stationary. In the process of cutting, you need to press the handle with one hand with one hand, and the other pull the metal sheet.

Choice larger diameter Bearings will increase the speed of cutting.

For convenience and accurate cutting additionally install guides.

Adjustment is carried out using oval holes, sets of gaskets and special bolts.

When holding metal processing techniques, the manufacture of a device for cutting takes 7-10 days along with the setting.

Cutting sheet metal can be described as technological processAs a result of which metal product It is divided into parts by purchasing the specified forms and sizes.

The article describes the processing of sheet metal, is described about the methods of cutting metal, roller scissors are described, automatic lines etc., and also considered special equipment for processing sheet metal (machine, cutter, etc.).

Methods of cutting are divided into two main groups: mechanical and thermal.

Before choosing a specific type of cutting, it is necessary to learn the advantages of each type, the essence of the process, and in what cases a specific type of cutting is applied.

The basis of the mechanical cutting is a cutting tool having characteristics of strength and hardness higher than that of the metal being processed.

Another processing method is called cold. TO mechanical processing Calculate guillotine, belt and hydroabrasive and cutting with a grinder.

Cutting with scissors and grog

For metal cutting, this method uses special guillotine scissors, which can be used for thin-leaf metals (professionalist, galvanized).

The cutting element is a knife. Guillotine scissors are mechanical, automatic, pneumatic, hydraulic.

Manual guillotine scissors and pneumatic have the lowest prices of all types of equipment designed for the rectilinear metal cut.

However, an inexpensive tool has low performance, so you have to make a lot of effort.

Therefore, most often preference is given to special power tools or industrial equipmentwhich work is much easier and faster.

Electric tool is a Bulgarian (a corner car).

This is due to the fact that abrasive circles reduce the protective characteristics of the metal. When cutting with a grinder with their own hands, you need to comply with safety techniques: you must be closed eyes and hands.

The main danger during the work of the Bulgarian is the departure of fragments.

Effective cutting with a grinder is made by the heel of the disk - the near the bottom of the circle. Every 5 minutes the tool must be turned off to avoid overheating.

If long pipes are cut, then you need to start with a hanging edge. Thick details are cut by the grinder straight.

The guillotine scissors work according to the following principle: a sheet for cutting is located on the table between the knives.

Metal must be pressing to the table beam, and then move the top knife.

The guillotine scissors provide accurate cutting of metal, which is explained by the clamping mechanism. Guillotine scissors for longitudinal and transverse cutting sheet metal are intended. This fixture for longitudinal cutting is the most popular.

The other type tool is applicable for square, round and angular metalDue to the fact that the knife is located under any corners. The main characteristics of the device - the length and thickness of the cut.

Guillotine scissors provide a smooth cut without roughness, the knife does not spoil the paint and polymer coating and characteristics of the product being processed.

There are also disk scissors for longitudinal cutting, which is carried out by rubbing round knives.

Lower and top disk knives Spin on different directions at the same speed. The movement of the product being processed is ensured by friction about the knife.

Preferably disc scissors for cutting sheet metal are used for roofing work For longitudinal processing.

Disk scissors work like this: the processed sheet is placed on the machine, is inserted between the support and clamping rails.

Then the sheet is fixed with the clips and the disk scissors are moved along the cut line. When the disk scissors begin rotation, the knife cuts the product.

The disk scissors are easy to use with the longitudinal cutting of the metal with their own hands (especially if the cutting lines are placed in advance). The knife produces accurate and high-quality cutting.

This tool is intended only for longitudinal cutting. Pretty popular are automatic lines.

Automatic lines consist of a feeder, unwinding device, material feed mechanism, cutting unit and control panel.

Automatic lines for longitudinal cutting have the main advantage: there is no need to use people, since all operations on the lines are performed under the control of one person.

Roller scissors are often used. Roller knife is used for straight and curly cutting. Roller knife is suitable for cutting round and oval, square forms.

Belt cutting

For such cutting, the roller scissors are not suitable, but the machine with a ribbon cutter having a teeth, the distance between which is selected, based on the quality of the material being processed.

Cut has excellent characteristics: high performance, good processing purity, thin slice not exceeding 2 mm.

Such a machine is able to process any alloys. One of the advantages is to perform a cutting under any exhibited angle.

The machine also has cons: no possibility to perform figure cutting.

Hydroabrasive cutting is used for materials of various hardness: concrete, stone, different types Metal and others. The basis of this method is the use of a mixture of abrasive materials and water.

The machine gives a mixture with a pump high pressureachieving the highest speed, which provides cutting.

Such a method is one of the most promising, allows thin metals to cut without abrasive materials, only with water.

Thermal species

Thermal cutting of sheet metal is based on thermal exposure, after which the location of the cut is mowed and burns. The main methods are gas, plasma and laser cutting.

Gas cutting

Cutting and bending with the use of oxygen and combustible gases has reasonable prices. The method is not applicable for all materials. May be performed by I. figured cut.

The condition of high-quality cutting is the combustion temperature of a metal that exceeds the melting point.

The principle of technology such: the surface is heated to 3000 °, which depends on the metal processed.

Such a temperature is achieved using a mixture of combustible gas and oxygen.

For high-quality cut, the volume of gas supply and the speed of the cutter should be adjusted correctly.

Basically, this method is used for mounting work, in the production of metal structures.

The method is not deprived of the disadvantages to which you can attribute a greater width of the seams and subsequent processing.

Also, with uneven warming of the surface, deformation and deterioration of metal quality occurs.

The advantage is the possibility of treating products with a thickness of up to 20 cm, with a cut of 2.5 mm.

Plasma cutting

Plasma Sheet Metal Cutting is modern methodin which instead of the cutter uses a plasma jet.

The basis of the method is the use of gaseous substances in a high-temperature plasma state, obtained under the influence of an electric arc discharge.

Cutting can be done in two ways: a jet and arc. When processing an arc leaf turns on in the chain, the arc is formed between the metal and the electrode. When processing the jet, the cutting is formed between two electrodes.

Homemade adaptations can act as a plasma cutter

The plasma flow occurs on the plasma torus having an electrode that forms an electric arge.

Plasma cutting is used for cutting and bending of different metals with a thickness of up to 20 cm.

Thanks high temperatures There is no thermal effect on the sections near the cut, which prevents the leaf deformation, and also does not worsen the characteristics of the metal.

This is especially important when working with stainless steel. Curly cutting can be performed.

Plasma cutting and bending with their own hands are made manual devices, in which the start of cutting is the moment of the appearance of the plasma arc.

During the process between the plasma torch and the metal nozzle, you need to maintain a distance of up to 15 mm.

Laser cut

Laser cutting machine for cutting and flexible metal is the latest equipment. Laser cutting sheet metal is based on the thermal energy of a narrow-sofocused laser beam.

The main advantages of technology can be called accuracy, purity of treatment, thin cut.

The method is used for jewelry and other products that require complex curly cutting and bending. The method is advisable to use for metal with a thickness of no more than 15 mm.

Prices for equipment are not the lowest in connection with the novelty technology.

The essence of the method is as follows: a highly intensive laser beam is covered with a metal, heating the product.

After that, the surface begins to melt at the point of contact, and the adjacent areas are also heated, but not deform and lose their characteristics. Moving, the beam creates a thin line of the cut with smooth edges.

Tool for laser cutting It is represented by coordinate tables mating with microprocessor head head.

Laser machines perfectly handle fragile products, carbide materials.

Sheet metal processing is carried out different ways (roller knife, machine tools, cutters, etc.) from which you can choose suitable option Cutting and bending with their own hands. And homemade fixtures can be used for bending.

Sheet metal is cutting different ways and tools. One option is the use of roller knife. The device is used in industrial or home. The market contains factory models, but make a roller knife for sheet metal with their own hands, the task. Such an opportunity determine the volumes of the material being processed and economic feasibility.

Roller knife for metal - a device intended for separating sheet metal into two parts. The principle of operation is based on the destruction of the strength connections of the material being processed on the local area.

The force effect on the metal is carried out in two parallel planes. Vector vectors are directed towards each other. Example: household scissors or industrial guillotine.

In roller scissors, the power units are made in the form of two disks. Internal (converted to each other) Cutting surfaces are in the same plane. The edges of the rollers enter (shifted) for a small distance in a perpendicular plane. When driving (rotation), the device comes on a metal sheet.

The sheet squeezed between two discs, at the point of contact is experiencing an impact of two forces. The shift deformation and separation of the material occurs. Disks, making a progressive movement, shift the point of contact in the direction of the cut. Thus, the process of continuous processing of sheet iron is carried out.

Design

According to the created line of the cut, the device is divided:

1. Parallel location of cutting planes. Allows you to create a smooth rectilinear cut line. It is used to obtain metal strips.
2. One inclined plane. Two lines are performed - straight and curvilinear.
3. Two inclined planes. Create curvilinear and circular cut slices.

The last two options are used to create shaped semi-finished products from metal. The first option is most common, due to simple design and settings.

Self roller knife is rarely applied. For creating smooth lines Cutting and ability to work with dimensions must have reference points. Therefore, the cutting tool acts as a technical addition to any stationary machine. For example, listogib.

Structure

The metal cutting device consists of:

• stanna with guides (supporting surfaces);
• fixture of the material being processed;
• disk knife.

In the roller knife design, it includes:

• case with built-in or invoice handle;
• cutting discs;
• the adjustment device (settings) is intended for the exhibition of gaps and disks themselves in several planes.

Knife elements (except discs) are quite simple in shape. geometric figures. Performed from steel semi-finished products, sheet, corner, chapeller or other metal profile.

The cutting element is made of durable tool steel. Factory models have a resource of 25-30 km when processing a sheet with a thickness of 0.5 mm.

The adjustment system is a combination of oval holes, metal gaskets and installation bolts.

For a master who owns the skills of processing metal parts, it will not be much difficult to make such a device. On the example of specialists who created a roller knife independently, time costs were obtained within 5-10 days, including adjustment and configuration.

Benefits

The knife on the disks is an alternative to manual or industrial guillotine. Before them and other devices, he has a number of significant consumer properties:

• small dimensions and weight;
• simple design;
• easy setting and adjustment;
• ease of use;
• ability to work with a wide list of sheet material: steel, roofing iron, aluminum, copper.

The edges of the treated semi-finished product, after leaving the machine, have clean cut, without deformation and sowing.

Application

The main purpose of the adaptation is the processing of a metal sheet metal with a thickness of no more than 10 mm. For example:

• work with roofing glands when arranged roofing or fence;
• manufacture of semi-finished products - strips, for the production of ventilation from galvanized steel;
• cut of stainless steel To create countertops or kitchen cabinets.

The equipment has been used in auto repair shops for the manufacture of body elements or cabins. Factory cabinets, racks are collected from the sliced \u200b\u200bmetal.

Industrial Sample or Own Design

Metal cutting disk knives are released industrial methodBut you can make it yourself. To make a decision on the feasibility of creating a tool manually, it is necessary to take into account a number of factors:

1. Intensity of equipment operation. For an enterprise producing goods by serial and medium-sized parties, it is better to purchase an industrial pattern. In combination with the quality of manufacture, you will be able to accurately customize the tool. An additional plus is an ergonomic design that affects the convenience of use.
2. Required cut quality. At home, create a device that provides accuracy in tenths of a millimeter, quite a difficulty event.
3. Economic component. The industrial product costs 20-70 thousand rubles (only a knife). The real cost of making your own tool (except for labor) rarely exceed 5 thousand rubles. Moreover, this amount includes the reference part (machine).
4. Temporary factor. Designing and manufacturing a knife takes up to two weeks. The factory is bought in one or two hours. It will cost its own knife cheaper, but there is a saying - a surcharge, which came from abroad: "Time-money".

Hence, the solution of household problems or a small workshop is a tool created by their own. Intensive operation: the length of the daily cut is more than 20-50 meters, it is necessary to acquire industrial equipment.

Metal cutting is a technological process using special equipment. On the modern production There are specialized metal cutting lines, where the presence of a person comes down to a minimum, given the danger of such production.

There are several methods of metal cutting. Therefore, the metal cutting machine can be different:

• the portal cutting machine with a plasma or oxygen method is used to cut the sheet metal and non-ferrous metal sheet;
• portable thermal cutting machine is used for plants or installation in construction, shipbuilding, in the production of metal structures, cutting pipes and others;
• electric or hand tool for cutting pipes (pipeline) - allows you to get a smooth and high-quality cut pipe with a smooth edge;
• machines with laser, air-plasma or hydroabrasive sharp for large enterprises;
• gas cutting with a mixture of combustible gases and oxygen.

Roller knife for sheet metal with their own hands - homemade instrumentThe relevance in which is growing every day, which is explained by the productive speed of the work of such a device and its simple design. The mechanical base is extremely simple, and is based on two knives in opposite directions along the metal, pressed into the steel plane of the workpiece, which leads to its cutting.

The classic design provides for the installation of spinning discs from above and below, the classification of which occurs by the material of the manufacture:

• Parallel to the roller knives - serve when cutting steel sheets on the strip, while preserving good quality blanks.
• Roller knives with one inclined edge - such a design besides cutting, allows cut blanks with rounded shapes.
• Roller knives with multiple inclined edges - keeping a small radius, helps to make parts with curved lines and rounded shapes.

Design

Roller scissors for metal, with their own hands collected at home, have the general essence that remains unchanged - this is the presence of a cutting knife. It is made of steel alloys with a maximum strength threshold and other characteristics that should be higher compared to similar parameters from steel, which will be processed on a cutting machine.

In practice, it is known that the roller knives released in the factory for cutting metal have a resource of about 30 km steel sheets, with a reservation to the maximum thickness of the sheet, which will not exceed 0.5 mm.

Accordingly, if the material thickness is higher, then the durability of the tool is reduced. However, nothing prevents the tool to sharpen and extend the resource of its operation.

Necessary materials

The machine for cutting sheet metal, with their own hands, designed at home, needs knives, whose manufacturer's material spectrum is very wide, and the choice of one of them mainly depends on the type and thickness of the material that will need to cut. If you have to work with not the most durable, thin sheet steel, such as aluminum, then the ideal option The simplest bearings will be. But for the desired functional of the roller knife, they lack sharpening, which should be conducted independently throughout the end of the future tool.

The main roller knife is installed on the movable part of the design with a pressure handle, when pressed to which the billet clamp occurs between two cutting surfaces. The diameter of bearing directly affects the speed of the work. That is, the bearing diameter is greater, the higher the production speed on the machine.

To simplify work with a tool and legend to her, it would be nice to equip vegetores to the guide plane.

Production and installation of this part is not a lot of work, and in return, it will very simplify the whole process. At the exit, it turns out universal Machine With roller knives, which can interact with other metalworking equipment, which just without problems is designed in conditions of the house.

Instructions for manufacture

Factory models of cutters sold in the store, even in a standard configuration, will cost a longer amount. The price of the models offered in the market starts from 20,000 rubles. Such conditions are not beneficial in the acquisition of a tool for home use Or in a small workshop, and it will be used extremely rare.

For a start, the main body of the instrument is constructed, which everyone picks up. The main attribute of the machine is manufactured - roller knife for sheet metal. The material from which will be made by the part directly affects the durability and productivity of the unit. As mentioned above, the characteristics of the strength should be significantly higher than similar characteristics of the material cut. In another case, the minimum problem will be the low-quality cut, the generating masters to clean and process the edges of each sliced \u200b\u200bbillet.

With their own hands, roller scissors for metal, for the most part, are made of bearings. The sharpening of the ends of the part forms the cutting surfaces. The main roller connected to the drive is attached directly to the handle. The bottom is installed on the fixed side of the machine. In the presence of iron alloys processing skills, the manufacture of such a device will take a maximum of a little over week, including the setting of the unit.

Metal cutting features at home

Disk knives are an excellent replacement of metal scissors, having a number of advantages:

• Small dimensions and sizes.
• Structural simplicity.
• Easy adjustment.
• Convenience and opportunity to work with a large assortment of materials.

Cutting sheet metal, with their own hands, at home is usually carried out with cutters or drills. Of course, this approach helps to give the details of the desired outlines, and at the same time polish the surface. However, it will be much more practical to construct the machine with roller knives with their own hands (unless of course it concerns not cutting scrap metal, since there is not so much important), thereby reducing the time to process and minimizing the amount of debris and defects that may occur when used hand tool. If we speak easier - disk knives are a great replacement for metal scissors and even industrial guillotine.