How to saw reinforcement if there is no angular grinder. Oxygen-fluvial cutting

Than cut metal: the main methods of cutting metal

There are a large number of various methods of cutting metal. In this regard, questions: how they cut the metal, how to cut the metal and how to cut a thick metal, do not lose their relevance.

For the maximum satisfaction of consumer demand, a lot of alternative variations has come to be replaced by morally obsolete, classical methods of processing.

So the better to cut the metal and what the metal is cut at all? How can thick metal be cut? The answer to this question is quite multifaceted, due to the fact that the cutting process is used not only on an industrial scale, but also at home.

This, one of the most advanced technologies, gains increasing popularity due to its exceptional accuracy and high performance. The essence of the laser cutting of the metal is in point, directed effects of the laser beam on the metal. The impact of the laser allows you to produce parts of any geometric complexity of the contour, while maintaining maximum accuracy, almost ideal evenness of the edges, while without losing performance. The main differences in laser cutting and plasma cutting in the thickness of the processed metals and the quality of the cut.

The installation is controlled by the CNC machine operator. Complete automation of the process reduces the likelihood of an error, and, as a result, the culling of parts, to a minimum.

• Creation of a drawing image of the developed part;
• Loading drawings in the file image to the CNC program;
• Data processing and starting execution.

• Radiation source (working environment).
• Source of energy.
• Optical mirror resonator.
• Mething method. This type of processing is justified when working with any blanks, including thick and made of copper and aluminum. The essence of the method is to melt the cut place with a directed beam combined with the supply of a stream of compressed gas, which removes the molten metal down and the cooling edge.
• Evapion method. This method consists in the heating of the metal that conducts it through three stages: melting, boiling and evaporation.

Using a corner grinding machine

Corner grinding machines are one of the most obvious metal cutting options for both professionals and home masters. This is because these portable power tools are quite easy to use and are quite accessible to non.professionals.

Once in the hand, a small but fast disk knife Orion-74.RU on an angular grinding machine is able to cut out the thinnest and most thick bed (including bolts) without much returns.

For this purpose, on a corner grinding machine, a return is often found. This is why it is often important to fix the device with a side support handle. This can guarantee that your cuts will remain even, even if your blade sways a little during the cut.

Corner grinding machines are also known for their universality. In the end, most devices are compatible with various types of blades. Thus, you can probably use your new angular grinding machine for cutting not only metal, if your work requires you to work with various materials during the project.

Using circular saw

Builders with a long experience know that disc saws can often be used not only for cutting wood.

In practice, these saws can often be used for cutting metal, if you have a suitable disk blade. In particular, you often want to use a blade with increased abrasiveness, capable of completing a cut without much resistance. In most cases, blades with carbide attacks are best suited for this purpose.

By installing a suitable disk in the tool, you will be surprised which metals can cut the circular saw.

For example, many professionals use their circular saw to quickly cut out the reinforcing core. In the same way, the circular saw can be cut without any problems 3/8-inch workpiece. This is a significant increase in productivity compared to other electric tools for cutting metal.

However, not all disc saws can cut metal, even if they allow the use of a blade for cutting metal. Be sure to check the guide of the user of your device before starting work on cutting metal using a circular saw that you already have.

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How to cut a sheet of metal

One of the fastest ways to cut a galvanized sheet is the cutting of a corner grinder. Among the shortcomings of such processing are torn edges that will have to be additionally cleaned and aligned with. The corner grinder is not suitable for cutting corrugated board, as sparks during cutting can damage the polymer coating. But for simple work that does not require high accuracy and accuracy, the corner grinder is quite suitable.

Please note that when using such a power tool, purchase a special disk that will not damage the protective coating on the galvanizing sheet. After cutting the corrugated board, the edges must be cleaned and covered with special paint. Such equipment can be used if you are building a shed from a profiled sheet or making a visor. In this case, you do not have to purchase a special and expensive tool.

Rules when working with a corner grinder:

• Choose wheels with carbide teeth;
• Work at low speeds;
• Treat the cuts of the cut with a special anti.corrosion coating.

Possible methods of cutting rails

Despite the apparent complexity of the operation, it is not difficult to divide the metal element into small sections. To do this, you can use one of the following devices:

Each method is complicated in its own way, but the expected result (cut into parts of the rail) will be obtained. Now. in detail about each methodology.

Cutting with a sewing needle

The method was popular in the last century, when there were no more convenient devices for cutting metal rails. At the same time, the product was not sawed, but broke.

• The rails are installed on two supports with the base down;
• A thick sewing needle perpendicular to the product is placed in the expected place of the break;
• A strong and accurate blow to the place of fit of the needle is made with a sledgehammer, as a result of which the rail is cut in half.
• Experience is necessary. it is not easy to hit the right place for sure;
• a fishing line for a cutting trimmer (cut) sometimes turns out a curve;
• It is necessary to deliver only one exact blow; With several unsuccessful attempts, the integrity of the canvas will be violated.

Use of the chisel

Here, a metal blank is also divided not through cutting, but a blow.

• set the rail, as in the paragraph above;
• around the entire perimeter, with a chisel and a hammer (kiyanka), notches of a small depth (1-2 mm) are performed;
• At the place of notches with a sledgehammer, a blow is carried out, the rail is split.

The advantages and disadvantages of the methodology repeat the above, only time takes a little more.

Rail cutting with a hacksaw

A popular way, although energy consumption. It is important to know several requirements for the sawing canvas:

• The handle is comfortable, located not horizontally, but vertically, a little with an inclination towards the course of “from yourself”;
• There is spraying on the cloves of the canvas;
• The teeth are located in the direction of “from themselves”;
• When working, move the canvas so that the area of ​​contact of the teeth with the cutting surface is maximum;
• select the canvas based on the density and hardness of the rail material.

How to cut a rail using a hacksaw? The sequence is as follows:

• The rail is placed on a horizontal surface;
• If an accurate cut is required, it is worth using a chisel to make notches on the basis of;
• Sprink the base on both sides to the neck of the rail;
• Put the focusing under the place;
• make a point blow with a sledgehammer.

There are other ways to divide the tied rail into two parts. For example, drop it from a height if there is a manipulator at hand.

The use of corner grinders

Professional tool will save time on cutting the rail. Experienced people argue that two discs with a diameter of 150 mm is enough to cut the classic railway rail (P65, P75).

The work is performed in the same way. the base is tied on both sides, then a punch follows. The operation will take 5-10 minutes.

• injury hazard (the disk can “bite” and lead to breakdown, flying sparks will fall into the eyes and t.D.);
• noise when working;
• high is pointless);
• The method is bad for home conditions due to the dust, dirt, metal shavings.

The use of rail cutters

Another method of quick division of rails into a faction, which is not quite suitable for home conditions, but deserves consideration. Returients is a professional equipment used for various types of products. It is usually used on railway tracks in order to quickly restore the canvas in order to avoid trains delay. For example, then two devices are discussed further.

Reinforcement cutting tools

Reinforcing rods are produced from 6 to 12 m long, so it is important to know how to cut reinforcement. First of all, you need to understand that the smaller the class and diameter of the rod, the easier it is to make the blanks of the right size. It is very important for cutting a quality tool.

Reinforcing scissors or hand hacksaw can be used exclusively for cutting a small number of reinforcing rods.

Important! If you use manual methods of cutting, then you absolutely do not need to cut the rod completely. It is enough to make a tile of approximately a third of the diameter of the rod and go too far, using for this some improvised lever.

For cutting high.class reinforcing rods and with a large diameter, the electric saw is most often used, called the “corner grinder“. When working with it, you need to have certain skills and always follow the safety rules. As protective equipment, you need to use special glasses, helmets, special apron and gloves. The main advantage of the “corner grinding” is that it can be used anywhere.

Rules for cutting reinforcement “corner grinding”

The rules for safe cutting of the reinforcement “angular grinding” are as follows:

• The reinforcing rod during cutting should be raised above the ground, so that the disk does not catch on the surface;
• The cut rod must be recorded. For cutting rods with a large length, as a rule, you need an assistant.

The most convenient way for cutting reinforcement is the use of a special electric end saw, which is called “guillotine”.

Pre.marked reinforcement is laid on the base under the mobile disk, which is smoothly omitted. Then the disk rises again, the reinforcement stretches to the mark and the disk is again lowered.

The only drawback of the “guillotine” is its high cost, so most often this equipment is purchased by specialized companies. But at the same time, it is always possible to take the end saw for rent.

The cutting service when acquiring reinforcement is offered by many specialized companies. In order to attract customers, cutting a small number of reinforcing bars is very often free of free. A large number of reinforcement is cut according to the approved enterprise, which, first of all, depends on the thickness of the rods.

Cutting with a gas cutter

Technology implies the impact on the material with directed stream of burning gas. Due to the low cost of equipment, it is precisely this technique that is of interest to those who are interested in than to cut metal at home or at small enterprises. There are practically no restrictions on the thickness of the processed blanks. However, there are significant shortcomings:

• Low cut quality, requiring additional processing of parts.
• A large heating zone contributing to the occurrence of deformations.
• Increased material consumption.
• The need for careful compliance with safety precautions. Only experts who have undergone appropriate training and know how to cut the metal with a gas cutter are lowered to work.

All this limits the application of the methodology.

Equipment for oxygen cutting

Since acetylene is often used to work, installations for acetylene welding are often taken as equipment for oxygen cutting. Instead of welding burners, gas cutters are used there. The most common option is the cutter of the injector type.

In their design, the cutters differ significantly from the burners. They have additional tubes through which cutting oxygen is supplied, and tips with small holes for a mixture of gases. The central hole is provided for the supply of cutting oxygen.

Figure 4. installation diagram for oxygen cutting

The principle of operation of the machine for oxygen cutting:

• The workpiece is located horizontally, the valves of the cutter are closed;
• oxygen valve opens, and then. a fan of combustible gas;
• The mixture is ignited and adjustable by power;
• the metal is heated by the area of ​​the cut;
• a valve opens with cutting oxygen that activates combustion when heated metal reaches;
• Oxides appear in the process, they are removed by a stream of oxygen;
• At the end of the work, first closed the valve of cutting oxygen, then combustible gas, at the end. the burner.

The main tool of the kit of oxygen cutting is the cutter. There are classifications of these elements:

• by the type of combustible gas (cutters for liquid combustible mixtures, acetylene, gas-replacement gas);
• degree of automation (manual, machine);
• purpose (special and universal);
• mixing of gases (non.index and injector);
• flame power (large, medium, small).

How can you cut the reinforcement?

Reinforcement is supplied in skeins or rods. Their length is often too large for the selected area of ​​use. To create a frame or install several separate rods, you need to cut.

How to cut reinforcement? How the methods differ from each other and what are their advantages? We will figure out this issue.

Manual cutting. standard, but outdated method.

This is the most affordable and inexpensive way. In the process, two categories of tools can be used:

The cutting technique is simple. The rod is fixed in a vice, firmly fixed. The employee measures the desired length, puts a note and cuts off the suitable part along it.

Manual processing is used because it costs inexpensively, and the suitable tool is on almost any line. But this method has several significant drawbacks:

• You can only work with elements of small diameter. So, scissors are suitable only under a diameter up to 8 mm.
• The need to make significant efforts in the work. This is especially true in the case using scissors.
• Lack of a guarantee of compliance with sizes and obtaining a flat cut. Not all employees know how to cut the reinforcement with a “corner grinder”, to prevent the appearance of cut defects or deviations from the length. As a result, the material consumption increases significantly.

Another drawback is too slow work. If it is necessary to cut large volumes of reinforcement “angular grinder” or scissors will be unprofitable. As an alternative, it is best to use special machines.

Cut the reinforcement on the machine: how it happens?

To speed up work and exclude the human factor as much as possible, you can use special machines. They placed rods of metal rolling, on which an acute guillotine blade falls with force. The device can work with a guillotine or electromechanical drive. This affects performance, speed and other important characteristics.

In favor of choosing this type of device, they say:

• Ensuring even, high.quality cut.
• Accurate compliance with sizes.
• Significant acceleration of work, increased line performance compared to manual harsh reinforcement.
• The ability to work with products of large diameter.
• Simplicity in development.
• Lack of a human factor affecting the quality.
• The need to spend a minimum of effort in the process.

The electromechanical or hydraulic machine for cutting reinforcement is most often installed on the production line, where the opening of the metal rolling is carried out wholesale, depending on the requirements of the customer.

How to saw reinforcement if there is no angular grinder

Mr. PZHURURURUKUDZU wrote on October 23, 2011 at 17:08 [Back]

Good day, urban! Recently got a question with an edge. The fact is that I decided to build a monolithic underground toilet in my dacha, bought for this the twelfth reinforcement, concrete and shovel. Only now my neighbors in the site are very nervous and do not like loud noise, and they also bought a gun. Accordingly, the question is how to cut this reinforcement in the absence of electricity, quickly, and if possible quietly. One of my comrade advised me to buy a battery corner grinder. But the fact is that the corner grinder is up to 6,000 (and if the neighbors take away the device for 10. 20 thousand. will be insulting) Give a maximum of 7,000 rpm. Dear urbant! Advise me how to quickly saw the reinforcement without nervous neighbors? Sincerely, your Fukurukudzu.

Mom Lina Pila wrote on October 23, 2011 at 17:10

Anton Zubr14zubr14 wrote on October 23, 2011 at 17:12

Nikolai Gogol Raskymar wrote on October 23, 2011 at 17:11

There is one way, but it is expensive and you are unlikely to like it. So it’s better to take a hacksaw a couple of good paintings, petroleum jelly and drank with pens.

Nikolai Gogol Raskymar wrote on October 23, 2011 at 17:18

Post: gas cutting was a little quieter than a battery angular grinder and at the same time much more massive and moody, it makes sense only when it is necessary to cut a very thick metal or its larger length, in all other cases I would prefer an angular grinder.

Nikolai Gogol Raskymar wrote on October 23, 2011 at 17:25

In general, approximately on equal terms in decibels, just in corner grinders the sound is too characteristic and high.frequency, and the gas is slightly quieter and more. mmm. Not clear. Try to imagine the sound of a gas stove from a large comfort only once louder, in a closed room you have to seriously strain the ligaments to talk, for example.

Nikolai Gogol Raskymar wrote on October 23, 2011 at 17:45

Post: but it is still too noticeable so that it is easy to cut somewhere. The townsfolk usually think some kind of garbage like an accident on a gas pipeline, and those who know what kind of sound is quickly guessed by which Lyad he is distributed there.

Anton Zubr14zubr14 wrote on October 23, 2011 at 17:16

In general, go and explain to the neighbors that you do what you want and do on your site. And the rest of their problems.

Siberian ulcer SMERT113 wrote on October 23, 2011 at 17:16

How to cut metal? 6 effective methods!

Today we’ll talk about the problem of metal processing for industrial or construction needs. High requirements for modern structural materials and industrial details are also affected by the requirements for the quality of metal cutting. Today you need not only to divide parts of the metal, but to do it and exactly with high accuracy. And here we are not about the tolerances of a millimeter, but about much smaller tolerances.

• Usually the metal is sawn with an ordinary hacksaw. This process is quite laborious. Especially if it is a manual hacksaw. A little easier if there is an electric jigsaw. Mechanical hacksaws are in sales of various companies. The most famous of them are Bahco, Stayer, “bison”. Their cost depends on the quality-1000-3000r.
• Thin sheet metal can be cut and special scissors for metal. Cuts perfectly and fast, but not always comfortable and slow. Hands tend to get tired quickly. Metal scissors offer various companies. The most famous of them are Brigadier, Kroft, Sait Demirci. Fit and others. The cost of these products is 100-500
• A modern and effective way. saber saws. a professional tool of a metal canvas of which is fixed in a strong case. They usually cut hollow details or designs.
• You can cut the metal with a disc saw with special diamond spraying. Differs in high speed and accuracy. It will be possible to get a post.cutting in the form of removing sharp edges. Minus. large dimensions and tall, and the disks are not cheap.
• Angle.grinding machines or “corner grinders” took root in modern society for a long time. Differ in low cost of the machine (500-2000r) and consumables. Comfortable, small and perform a bunch of other functions. One of the optimal solutions from the “Price. Quality” section.
• And finally. the most effective way is plasma cutting of metal! Leaves no chance of other methods in quality and cut speed. The plasma cut passes like a hot knife through the oil. Completely excludes the possibility of thermal deformation of the product during cutting. Figure cutting with plasma is performed with amazing lightness and simplicity, it is possible to use various drawings and templates. Low cost of processing one part. are high only for the equipment itself. With a professional approach and a large number of customers, pay off for several months.

And in other way, you choose the choice of tools yourself. It often depends on the tasks and thickness of your wallet!