How to cut a pipe along a corner grinder. Completing of the work

How to cut a corner grinder along a round pipe for exactly 2 parts

The first method is not entirely convenient, but quite accurate. Suitable in cases where you are in the tundra and there is nothing at all, except for a pencil and roulette. A couple of times I had to use it. The diameter of the pipes does not matter.

An important condition is the presence of a flat plane near the cut. It can be the edge of the pipe, a bell, a worn or a ground clutch, a seam or any other concentric circle.

Risk notes the place of the cut. We measure the distance from the risks to the flat plane. We rearrange the roulette along it and make risks in a circle using a given size. We get a circle from the crook.

Squeeze

Widely replicated on the Internet. We take a sheet of paper or a newspaper. We wrap the pipe so that the edges come together at one point. The edge of the newspaper. this is the plane of the cut. We carry out a pencil or marker. the markup is ready.

I do not see restrictions on the diameter of the pipes here. The only question is what to take for wrapping. For marking new pipes of large diameter, roll paper is suitable (for example, facsimile). For old rusty pipes, we made clamps of steel tape width about fifteen centimeters.

Materials can be different: painting tape, roll sandpaper, a roll of penofol.D. The denser and wider the tape, the more precisely the marking.

The tools used

I am simple at first glance operation. cutting pipes in practice discovers a lot of nuances and pitfalls. Not so. just cut off the tube evenly:

It is very important to choose a cutting method for each specific case and special equipment. It is divided into individual, domestic and industrial.

For individual use

Used in households, private construction and small business. Deal with small and average diameters (up to 250 mm) used in systems

• Rezaki. They are used to cut off the polymer pipe up to 75 mm. For an even and neat cut, they have a gear mechanism. The workpiece is first clamped by a shelter, which reliably fixes it and does not allow to leave the cutting line.
• Disk cutter. Suitable for ventilation and sewer polymer pipes with a diameter of up to 200 mm. A blade is not a secate type, but in the form of a disk rolling on the surface of the workpiece. The incision is carried out at several revolutions. Not suitable for metal.plastic rolling, since a thin metal liner can mix.
• Guillotine. A flat oblique knife moves in the guides and allows you to smoothly cut off the required length in one pass. Produced both with an electric drive that provides greater performance, and with manual.
• Kryazuvka for metal. A classic locksmith tool allows you to cut off the preparation clamped in a vice. When using it is important to lead the saw smoothly, with constant effort and without distortions. The burrs formed after work with a hacksaw should be cleaned with a file.
• Corner grinder, corner grinder. In everyday life, it is called “corner grinder”. This universal tool on the teeth of any materials and diameters. In order to cut the pipe with a corner grinder, special abrasive cutting discs are used.
• Electric jigsaw. A very popular tool among home masters can cut pipes, but due to the departure of a flexible blade to the side of accuracy you will only have to dream
• Saber saw. The tool has not yet gained widespread among masters. The adjustable emphasis of the saw and its powerful blade allow you to cut off the rental even by weight and close to the wall.

How to cut a pipe evenly

In order for the cut from a general purpose tool to be even, special devices should be used to fix the workpiece. It can be templates, vise or chose. In addition, it is very important to properly mark the future cut and during work to ensure that the fishing line for the trimmer cut does not go to the side.

For industrial use

Such equipment is used in production, where the volumes of work are large or you have to cut large diameter pipes. In order to cut off evenly, use:

• Lathe. Suitable for high.precision cutting of workpieces, removing chamfers, performing ledges, transitions of diameters and other shaped processing. Allows the lathe and cut the thread, both internal and external. The length of the part is limited by the departure of the machine of the machine. Diameter. the fist of the cartridge.
• Ribbon machines. They are used in order to cut off a large diameter pipe without extracting it from a trench or a collector point. Work on deformed products.
• Disk cutting machines. Highly automated installation with a pendulum saw and the mechanism for feeding blanks. It is often included in the production line, used for high.performance rolling of rolling into equal pieces.
• Manual disk installations. Mobile equipment is used to cut off the rental exactly right at the installation site. They are equipped with a multifunctional clamp that allows you to reliably fix products of different diameters and cut them out evenly without damaging the edges. Turning table allows you to cut exactly at an arbitrary angle. The most advanced models are equipped with an orbital welding system. This allows you to not only cut off, but also connect the segments.

Cutting technology

As a rule, the volumes and complexity of the work that are coming to the home master does not require the use of high.performance and expensive equipment of the production level. In the manufacture of the frame of the greenhouse, you can completely cut the pipes with a corner grinder or a traditional manual hacksaw.

Each type of cut has its own nuances, and some require special tricks.

At right angles

The accuracy of the cut is largely determined by a qualitatively made marking. Experienced craftsmen advise to marry the cutting lines not with a pencil, but with a painting tape, observing the following sequence of actions:

• Set aside the required size and put a small mark with a marker or pencil.
• Gently, applying to the mark, glue the part with masking tape in a circle. The edges of the paper must converge without a shift. This is a sign that the paper is sticking correctly. If the edges have not come down, the tape needs to be re.packed.
• Reliably fix the workpiece to exclude its movements and ponds during work. To fix, use a vice, clamps.
• A cut (smaller) piece of the workpiece should be left by weight so that it does not clamp a blade or disk.
• The incision starts from the upper part.
• Corner grinder disk (or hacksaw cloth) is carried out exactly along the edge of the painting tape, without deviating to the side.

This is allowed to cut off the required length.

If the diameter is large, then the marking is performed in the same way, but cut in parts, sectors of 30-60 °. After cutting the next fastening sector, weaken and turn the pipe. Then they fix again and continue to cut off from the place where the previous sector ended. To make it smooth, special attention should be paid to the beginning of the cut, avoiding steps and sickness.

Oblique section under 45 °

Cut the end of the pipe at exactly 45 ° is possible without the use of complex devices. It is enough to apply locksmith. You will need to do the following:

• Cut a paper sheet in the shape of a square.
• Fold the diagonal. The rectangular isosceles triangle will learn.
• Wrap the workpiece with a leaf so that the triangle has a perpendicular to the axis, and the hypotenuse forms an ascending spiral.
• Fix the sheet with tape.
• Fix the workpiece and cut off along the oblique edge of the sheet. It will turn out under 45 °.

There is another folk method. The end of the workpiece is immersed in a container with a liquid at the required angle. Cut off along the border of the dipped and dry sections.

If you need to cut off not perpendicularly, then it is better to use an old carpentry tool. a knock.

This is a P-shaped template, in the side walls of which slots are already made at the given corners. The pipe is rested on the far from the master, the wall was stuck and pressed there with a hand or a manual clamp. The canvas of the hand saws are made in the appropriate grooves and saw. If necessary, cut off from a different angle, you can make additional cuts in the walls.

Direct cut

You can make an even cut at an angle of 90º only after applying the marking. Use a sheet of paper or painting tape. The latter is preferable, because it is attached directly to the surface and does not shift.

The sequence of actions looks like this:

• A section of the desired length is measured with a tape measure, they note this place with a dash marker.
• Further, tape is glued along the resulting label around the circumference of the pipe. The more even you glue the sticky tape, the better. optimal that the wide edges come together as precisely as possible. This will allow you to make an accurate cut of the pipe on the mark.
• The next step, the pipe is fixed in a vise or pressed to a flat plane so that it does not shift during operation, and a smooth seam turned out. Note that one end of the pipe must be left in a free position, so that during cutting the disk is not clamped by the walls. Cutting start from top to bottom.
• The last thing to follow is how to saw off the pipe with a corner grinder. To do this, you need to lead the disk as accurately as possible along the edge of the sticky sticky tape.

In cases where pipe products with large sections are cut, the work must be performed in small sectors. To do this, the pipe will have to constantly turn around the axis at the end of the next incision.

When working with cast.iron pipes, the action scheme will be slightly different. First, a continuous incision is performed throughout the diameter of the product, then with the help of a chisel and the hammer the resulting gutter is gradually drunk, as a result of which the pipe should split strictly along the cut line.

We twist

The way I most often use when cutting pipes of small diameters.

I put the pipe against the wall, with a free end I rest it in a corner (if necessary, put something so that the pipe does not roller). At the place of cut with a pencil or marker, I touch the pipe. So that the hand does not flinch, resting it on the wall. I rotate the pipe beyond the edge, and the pencil outlines a flat fishing line for a cutting trimmer.

It may seem that the method is suitable only for small pipes. Once we managed to mark the pipe so a little more than a meter in diameter.

They once brought a pipe three meters long to the workshop and something about twenty meters in diameter, I don’t remember exactly. They ordered to do. Frankly, a non.standard task for us. But we coped.

After the brainstorming, they drove to the joiner and dragged the factory sheet of plywood. One side put it tightly under the pipe (angle to the future cut line). Along the second side, a fishing line for a trimmer on the floor was drawn. this is a perpendicular.

Then everything, as described above, only on a large scale. Two men rolled the pipe, trying to do it as evenly as possible. The third put a marker to the pipe and led it along the line marked on the floor. At the end, the marking was closed, which means that we did. There are no unresolved tasks. You just need to show ingenuity.

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Pipe trimming at right angles

The technology of trimming at right angles is quite simple. You just need to fix the metal part, mark the cut on the cut line, and cut the workpiece directly. The end of the cut part of the pipe should be over the support.

A wide or narrow tape, marker or simple pencil is suitable for applying the cut tag. It will simply be necessary to wrap the product, mark the place of the cut, and make an even incision. When winding, both ends of adhesive tape should be accurately fixed with each other

Methods of cutting metal products at an angle

The usual perpendicular cutting under 90 °, using an angular grinder, is carried out quickly and efficiently if the advice of specialists is not neglected.

Many people believe that if a large tool with a large powerful disk is used for sawing off, then you can not apply markings. Experts do not recommend sawing without applying the marks, because after pruning the part may not be compatible.

note! Before you understand how to cut off the pipe with a large corner grinder, it is better to make markings several times, make sure of the accuracy of calculations. After incorrect sawing a profile or gas pipe, you will have to start work first.

Features of cutting a cylindrical pipe under 45

Most often, a section at an angle of 45 degrees is required when installing heating or water supply systems. The main complexity of the work is that after combining the cut parts of the pipe, a right angle of 90 degrees should be obtained. A simple way to prepare a home.made pattern will help to achieve the quality of the cutting process:

• Prepare an ordinary white sheet of paper.
• Fold it diagonally.
• The protruding part of the sheet needs to be cut off with scissors, so that in the expanded form a square.
• The resulting triangle must be wrapped around the pipe so that the long side goes parallel to the cross section.

A paper pattern is great for cutting metal products in the middle.

Paper template

The half.folded triangle must be divided into two parts. Then the templates need to be wrapped around the pipe, and fixed with tape or island. The templates should be located in such a way that one edge of the base coincides with the second.

With scissors you need to round the upper corners of both templates. The resulting two blanks of the desired diameter should be put on the pipe, and marked the cut place with chalk or pencil. The prepared marked part can be safely sawn down.

For small diameter tubes, which must be cut close to the edge, the marking method is suitable using a container with water. On the deep container, the desired angle of inclination of the cut is noted, then the end of the tube is placed in the water, and leans to the marking. Fishing line for trimmer contact with liquid will become a tag for sawing.

How to note the place of cut under 45 on a profile pipe

Not everyone knows how to cut a profile pipe under 45 degrees with a corner grinder correctly and efficiently. Experts advise using an ordinary triangular ruler for marking a profile pipe with a square section.

First, on one of the faces, draw a straight strip located perpendicular to the side of the pipe. Then the workpiece must be turned, and apply a slanting label to the next line. It should go from the edge of the first strip at an angle of 45 degrees.

After that, the product rotates again, and a perpendicular fishing line for a trimmer is carried out. On the fourth edge it will only remain to connect the previously carried out strips diagonally. Now you can start the saw.

Additional Information! Many experts believe that the best way to mark the profile is roulette. However, with the help of this tool, it is very difficult to perform work perfectly, the cut may turn out to be uneven. The school line will cope with the task much better.

Instructions and recommendations for cutting corner grinders

Work with materials is characterized by one proposal: the direction of movement of the tool and rotation of the disk must match.

Safety precautions when working with disinfectants

note! It is necessary to in contact with the cut surface at the maximum revolutions of the spindle. otherwise it may occur.

• A cutting fishing line should pass by a working person, and not rest against him. If the disk is shining, the reactive movement of the tool will pass by the operator.
• Cut profiles start from a place with the smallest cross section.
• The protective casing ensures safety only if it is between a person and a circle.
• When cutting the walls, a cable, reinforcement or pipe may fall, which will lead to the opposite impact. Be away from the possible line of displacement.

What is a reverse blow?

This is the name of one of the most dangerous cases that can be in the process of work. The effect appears with a strong jamming of the circle into the workpiece, as a result of which the power tool abruptly throws back. It is necessary to carefully monitor the process and hold the corner grinder tightly.

The glasses were not enough

How to avoid a backup

• Always hold the tool for standard handles.
• Take a stable position on earth.
• Use both hands.
• Be a little away from the place where the tool will hit.
• When moving, the angular grinder from herself during the reverse impact, it bounces to a person.
• Be especially careful when processing angles and edges.

How to hold a corner grinder correctly

Many have a corner grinder, but most people do not know how to use it correctly and how to keep it. This leads not only to marriage in work, but also to severe injuries. Corner grinder is a rather dangerous power tool.

The circle should be installed by the pattern up and clamped by a special nut.

A person with the leading right hand holds an angular grinding of the handle with his right hand. In this case, the circle should be located on the left side of the machine, and the protective casing should close it on top. The rotation is so that during cutting sparks fly to a worker. If the corner grinder jams the circle and the corner grinder will break out of the hands, then it will not go to the cutter, but in the opposite direction.

The left hand holds the car by the handle, which is wrapped in a threaded hole on the case. There are somewhat for special cases of use, but the right position of the handle is only the upper.

This position of the machine requires the use of protective equipment. To protect the eyes and open part of the face, these are protective glasses, and even better. a protective mask. To protect the open parts of the body from sparks and small fragments during cutting, it is necessary to put on a suit made of dense material.

How to saw without dust

Any dust is harmful to human health. During repair or construction, it settles everywhere. Remove it later and for a long and quite difficult. But the main thing is that it cannot be removed from the body. In order to work without dust, it is necessary to make a small and inexpensive device for angular grinder.

This device is very similar to a medical dropper. In a regular plastic bottle with a volume of 1.5. 2.0 liters, we put a tube from a dropper. We leave only the regulator on it. In the protective casing of the corner grinder, we make a hole along the diameter of this tube. In this hole we insert the other same tube.

We connect these two tubes, pour water into the bottle and open it to the supply to the circle. After the first approximate cut, we adjust the supply of water, which should extinguish all the dust released during cutting.

With such a device, you can process concrete, brick and many other materials that, when destroyed, distinguish a large amount of dust.

Instructions and recommendations for cutting corner grinders

Work with materials is characterized by one proposal: the direction of movement of the tool and rotation of the disk must match.

Safety precautions when working with disinfectants

note! It is necessary to in contact with the cut surface at the maximum revolutions of the spindle. otherwise it may occur.

• A cutting fishing line should pass by a working person, and not rest against him. If the disk is shining, the reactive movement of the tool will pass by the operator.
• Cut profiles start from a place with the smallest cross section.
• The protective casing ensures safety only if it is between a person and a circle.
• When cutting the walls, a cable, reinforcement or pipe may fall, which will lead to the opposite impact. Be away from the possible line of displacement.

What is a reverse blow?

This is the name of one of the most dangerous cases that can be in the process of work. The effect appears with a strong jamming of the circle into the workpiece, as a result of which the power tool abruptly throws back. It is necessary to carefully monitor the process and hold the corner grinder tightly.

The glasses were not enough

How to avoid a backup

• Always hold the tool for standard handles.
• Take a stable position on earth.
• Use both hands.
• Be a little away from the place where the tool will hit.
• When moving, the angular grinder from herself during the reverse impact, it bounces to a person.
• Be especially careful when processing angles and edges.

What you need to cut the pipe

A profile pipe can have a square, rectangular or round section. Products that have flat surfaces simpler in cutting. They are easier to fix and hold on the surface.

When cutting round tube rolling, additional fixation devices should be provided, since it is more difficult to hold such material in your hands on your own hands. If there is no improvised inventory. Then you should attract an assistant who will ensure the capture and retention of the profile during cutting. Any displacement can lead to a skew of the cut line or breakdown of the saw disk.

As a tool, you can use an electrician. But the effectiveness of such a device is low, and the cuts themselves are not always accurate. Therefore, it is better to cut profile pipes using an angle grinding machine. The people call it corner grinder. Such a tool is more productive and efficient.

When using a corner grinder, it will be necessary to ensure the presence of a high.quality abrasive disk. This is a special metal disk with corundum (highly hard) coating. When performing large-scale work, it is better to make a stock of 2-3 such disks.

Pipe cutting according to the template

This method involves obtaining a transverse cut at an angle of 90 degrees. The finished segment is used as a template. It needs to be put to a profile pipe, leaving one of the ends.

With the help of a square and a ruler, a visual marking of the line on the pipe is made, which we cut. Better for visual perception is a marker.

To cut the profile pipe evenly, you need to perform actions smoothly and gradually. On the intended line, they make a slight cut with a disk. This must be done so that instead of a drawn line there is a groove of metal with a shine.

When the marking is ready, a cut of the profile is carried out. A light reciprocating movement should be done on the corner. Gradually, you need to shift in the direction of the opposite corner at the same time deepen along the side wall.

Recommendations for cutting metal pipes

Cutting pipes from different metals is a demanded operation during repair and construction work. It is necessary to cut off the products when installing sewer and heating systems, water lines. In this direction, the corner grinder copes well with various tasks. Disks for work are chosen according to the material from which the pipe is made.

The use of a corner grinding machine makes it possible:

• cut pipes at different angles, for example 45 and 90 degrees;
• cut large diameter products;
• Exactly cut profile (rectangular or square cross section) pipe;
• make longitudinal cutting of tubular blanks;
• saw cast iron pipes;
• Cut the thin.walled tubes.

If you need to cut a large diameter pipe, then the use of a corner grinder allows you to perform this work without significant cash costs. But at the same time, labor productivity is small, and the risks are considerable. When long pipes lie on the supports, only hanging parts are sawn down. If you saw it in the center, then the cuts of the cut will clamp the rubberized circle, which will lead to the jamming of the tool and the possible injury.

Experts not only cut pipes from different materials at the desired corners, but also cut the holes of the required forms in them. Work with specialized and round blanks is carried out in a similar way, with mandatory compliance with safety regulations.

Cutting pipes at different angles

Cut at an angle of 45 and 90 degrees round and profile pipes is necessary when laying various communications. In any case, it is necessary to sprinkle the pipe evenly so that the elements that need to be connected are maximally connected to each other.

A cut at an angle of 45 degrees of cylindrical pipes is carried out as follows:

• take a regular square paper sheet;
• fold it exactly diagonally;
• The pipe is wrapped with this template;
• with a chalk or other marking device, the future fishing line for the trimmer of the cut is applied;
• remove the template;
• clamping the workpiece in a vice;
• cut off the marked fragment of the pipe.

When applying the template, any of the two short sides of this triangle should be parallel to the central axis of the pipe.

When it is necessary to cut at an angle of 90 degrees, the pipes are simply wrapped in a circle (cylindrical) or along the perimeter (profile) sheet of paper. After that, a fishing line for a trimmer cut is marked. You can also mark the profile pipe very simply with a regular square.

If it is necessary to cut at an angle of 45 and 90 degrees a significant number of profile pipes, the corresponding templates are made from this material, only of a larger section. This allows you to perform the required measurements only once. In this case, for the initial marking, a construction square is used, or transportation. When the template is made, cut blanks are inserted inside it, noting the cut line. Then the sawing is performed.

Templates are made for other angles. This method increases labor efficiency.

Features of cutting cast.iron and thin.walled pipes

Cast iron is a fragile material. To cut the cast.iron pipe with a corner grinder, act in the following sequence:

• mark the fishing line for the trimmer of the cut;
• put a wooden block under the pipe, which will serve her support;
• make cut along a contour a depth of several millimeters;
• insert a chisel in the depression made;
• on mentoring strongly and abruptly hit with a hammer.

After the blow, the pipe will split along the cut line. Its edges will be quite even. If necessary, they are additionally processed.

To perform the longitudinal sawing of the pipe, the exact marking is also important. For its application, various devices are used, for example, a construction thread (“beaten”). The whole process of sawing should be carried out carefully, slowly, so as not to go astray from the marked line.

Thin.walled pipes are one of the varieties of this kind of products. They are often made of non.ferrous metals: copper or aluminum. Their cutting is a difficult occupation. In this case, the corresponding workpieces of the corner for corner grinding.

The sawing of thin.walled tubes must be performed very carefully, because they can easily be deformed even from applying an insignificant load.

To reduce the likelihood of bending the cut part, various bulk fillers, for example, are ordinary purified sand, fall asleep inside it.

In the video, the process of cutting corner grinding:

I hope the viewing was useful. I cut a large diameter here and spent only three minutes on a sharp, it is natural that the time spent on cuts of pipes with a diameter of 15 to 25 millimeters will be much less. When working with a corner grinder, always be with glasses. this is a prerequisite for the safety of your health. So, dear friends, feel free to use it in work and let you always accompany you success.

The article was originally written before this line, and it is devoted to helping Santa with experience, which was explained in the description for the video. And what did I see after ten months of placing it on YouTube:. 66 likes and 95 dyslaiks. A bunch of negative Комментарии и мнения владельцев. Sadly, however, he strove for this. One spectator, in the name of Vladimir Temlyak, wrote: “They show all crap only to earn extra money”. I wonder what is my earnings here? The last commentator, under the nickname Jumatatu Ta, threw a couple of links to the photos of mutual people. And then it dawned on me that many “roller” spectators are ordinary inhabitants, moreover, frightened by horror stories on the Internet. The next line is for them:

For these guys, the video was shot, I wanted to introduce them to a 1.2 mm thick disk.

But I have already touched me these diesella and therefore decided to study what is on this issue on the network. What was my amazement for reading sites located in the top of the search engines: a lot of articles written about corner grinder with copywriters. Who is it? And I will explain, a copywriter is a person who makes a living by writing articles, that is, he is given a set of keywords (in our case, an angular grinder, a cutting disk, an accident), they say that the article should contain at least 2-3 thousand signs (a sign is a letter, a symbol, a gap, etc.P.) and he is slamming the article. With the same success tomorrow, he writes about God’s cow, and the day after tomorrow about spaceships, and a day later about the benefits of the mixture “Turboshem”. I clearly explained?

What can write, for example, in the news release a correspondent? Of course some stunning sensation, oh how they love phrases: “Two staircases in the entrance were flooded with blood” and the like. Never, no one in the news will tell that the Moldovan, or there is an Uzbek, or Russian, put a circle of the wrong diameter on the corner grinder but in vain!

No, do not think, I did not have in my thoughts to “beg” the seriousness of working with this tool, but this is just a tool. a hand tool. Let me remind you once again: a million people use it daily, and five hundred thousand of them are exploited without a casing.