How to cut a profil tube at a 45 degree angle

How to cut a 45 degree angle

Often during the repair, you can be confronted with a situation where you need to cut off a piece from the part, at an angle of strictly 45 degrees. Usually, it is needed to connect two parts at right angles, 90 degrees, such as: door trim, baseboard, furniture and more. An experienced master, professionally involved in repair work, can often do without special devices, and virtually by eye can even and clearly cut the necessary part. But if you are a novice repairman, and you have a desire to do the job as efficiently as possible, without damaging expensive parts, then you just need to buy a plane. a special device that allows without special tricks to saw off the material at a given angle.

If after gluing a part of the baguette there is some distance left to the corner, you need to think about not making a mistake. a small margin does not hurt. At first it is better to cut a piece with a good margin of about 10-15 cm. Then, having cut the corner by any convenient method, make its fitting on a dry surface. To do this, place the bar against the ceiling and mark the point where the boundary of the shortening will pass. Trim at a right angle.

No less important is the correct joining of the corners. Ready-made skirting boards are usually fixed at an angle smaller than 45 degrees, so there may be inconsistencies in the cut edges and the appearance of gaps. Here the initial trimming of corners is followed by dry, if possible accurate joining of skirting boards already on the ceiling itself. Problems usually arise when using wood and plastic materials.

After the rough joints of the fillets, they should be glued or screwed, and then, if necessary, use putty and then. seal all the existing joints.

The usual 90º perpendicular cutting

Some people believe that it is not even necessary to make any markings here, especially if a large angle grinder with a large cutting disc is in hand. However, afterwards, when aligning pipes cut without marking, problems can arise. To avoid them, you can use an ordinary duct tape or masking tape, which is glued around the pipe. At the same time, its edges at the start and end point should perfectly coincide. If everything is done correctly, after cutting the two pipes will come together, forming a perfectly straight line, without unnecessary gaps.

With the help of duct tape the marking is made quite simple

Cutting at 45 degrees

Typically, in order to turn the pipe at 45 degrees use fittings, bends with an angle of 45 degrees, made of the same material as the pipe itself, if the pipe is steel, then the bends are welded to steel. For HDPE pipes there are electric-welded or cast 45 degree bends (note that compression fittings with such angle of rotation in Russia find almost impossible).

But if you still need to cut a round cross-section pipe made of steel or various plastics, you will need a template for cutting pipes at an angle, the shape of which is calculated by hand or machine. The task is greatly simplified if you need to cut a metal profile with a square cross-section at an angle of forty-five degrees.

For quick trimming, you can use an ordinary piece of paper folded diagonally, with which to mark the surface for the future cut. Using folded paper, proceed as follows

  • on the straight surface of the profile in the place where the cut is made, a strictly perpendicular line for the trimmer;
  • Applying a diagonally folded sheet of paper to the side surface with its sharp end to the line so that the upper edge of the paper triangle is flush with the upper side of the metal profile.
  • spend a pencil line for a trimmer on the side of the sheet at an angle of 45 degrees, then the paper corner is attached to the other side and encircle it with a pencil (it is better to use a thin marker).

For sawing you can use an angle grinder with a disc for metal, firstly conducting a thin line for a trimmer on the marking, then gradually deepening it to complete separation of the edges.

When working with an angle grinder the following factor must be taken into account. when cutting edges completely, the disc can be damaged against a sharp corner, which will lead to its failure, and in the absence of protection on the angle grinder even to injury to the employee. Therefore, it is desirable not to cut the corner edges all the way through, but to leave a narrow groove and then break it up, grinding down the projection afterwards.

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Making a template for cutting sheet metal

If it is necessary to cut a large number of pipes, you can make a template from metal profile of larger diameter on a paper sheet by the above method. Angle of inclination is checked by a protractor or a building angle. in this case two edges of the cut parts of the template are connected.

At work on a detail cut in a necessary place put a template and it is tightly pressed, the marks are put by sharply sharpened screwdriver at outlining a template contour. The piece is cut in several steps with a gradual deepening of the groove.

Chisel for pipe cutting with my own hands

Using a template is not very convenient. you have to make a cut in line, holding the angle grinder on weight, which leads to large errors. If you have a welder, you can make a simple jig. guides for the disc of the angle grinder, not allowing him to go sideways.

The previously made template is used, a hole is drilled in its side and a nut is welded. When working, a homemade jig is put on the profile, a bolt is screwed into its nut and the device is pressed to the profile surface. angle grinder with a disc for metal make a cut, slightly pressing the disc to the side surface of the device. It is clear that with prolonged work, the edges in the jigsaw will gradually wear away, and although the process occurs simultaneously on all edges, some inaccuracies will appear over time. That’s why it is better to make the device out of hard metal, to increase its service life and to obtain a more accurate tool.

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How to cut a square profile tube

Sawing profile pipe can be done in much the same way, but here it will be easier to use an angle piece. The fixture is applied to each side in turn, requiring the element to be cut to be rotated, and a marking is made. Then you fix the tube firmly, and then you can begin work. Any suitable tool can be used for sawing. If you have a lot of pipe to cut, it is advisable to make full-fledged templates from scraps. In this case, the measuring and marking work will only have to be done once.

How to cut the pipe evenly angled grinder at 45 and 90 degrees | Methods of cutting

When working with construction or plumbing tasks, you need to know how to evenly cut a pipe with an angle grinder. This article discusses quick and easy ways to cut the pipe properly with an angle grinder to get the perfect result.

Cutting pipe at 45 and 90 degrees

If you need to cut the pipe at an angle of 45 degrees, which is often required when laying water pipes, heating pipes.

Often used steel, cast iron pipes, which have a cylindrical shape. Rectangular or profile pipes are used in installation work.

However, you should properly cut the pipe with an angle grinder, so that you can then easily connect. Therefore it is necessary to carefully mark the pipe.

Some masters try to mark out a place of the cut by means of a tape measure, but we warn that the result most likely will turn out negative. And for a positive result, consider the following recommendation of professionals.

Take a sheet of paper or cardboard, preferably A4, fold it diagonally and wrap it around the pipe where you plan to make an even cut. The edges of the paper should absolutely coincide with each other. And the side of the paper that is closer to the end of the pipe is perpendicular to the axis. After that, in a circle, mark the line for the trimmer of the cut.

If you need to cut evenly at an angle of 90 degrees, solve the problem quickly, again using paper or masking tape. Wrap it around the pipe so the ends match up. Make an even mark and saw off.

Masters are advised to use an angle piece when cutting a profile pipe. To do this, put the angle piece one by one to the sides, and with smooth motions turn and mark. After the action, fix the pipe and cut. Prepare yourself a template that will come in handy in the future and save time. It is better to perform the action with an angle grinder, so the cut will be more even.

When working with cast iron pipe, take into account that it is a fragile material. Therefore, let’s introduce a method by which you will be able to cut such metal without damage.

Before you begin, make marks for the cut, as in the work with steel pipes. Put a wood block to support it. Walk the angle grinder around the circumference of the pipe, making small cuts. Then take a chisel, insert it into the groove and hit it hard with a hammer. Keep in mind that bakelite-based cutting discs are used to cut cast iron pipes.

If you do not have at hand an angle grinder to cut cast iron sewer pipe or other purposes, use a hacksaw for metal, chisels or special pipe cutters.

Cutting a gas pipe is a dangerous action, so it’s best to trust a professional. But if you are confident in your strength, then for cutting metal, take an angle grinder, welder, hacksaw, gas welder.

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How to cut a pipe at an angle

Sometimes it is necessary to cut the pipe at a certain angle. In this article, the master plumber will tell you how to perform these operations and what methods of cutting exist.

Considering the methods of work. cutting straight or at an angle. take into account the different materials of the products to be processed. For example, it is easier and easier to cut polypropylene or thin copper hoses than thick-walled steel ones.

Plastic products of small diameters can be cut at the proper angle with special scissors. In doing so, you can control the angle with a conventional protractor. Cutting polymer pipes is also performed with an ordinary hacksaw with a fine-toothed blade.

In the process of installation, metal pipes are cut very often. A popular tool for such cases is the so-called angle grinder. This tool is used to cut straight and at an angle.

Find out what fixtures can be used to make cuts at different angles.

To perform a relatively precise cut, you can apply a simple technique, where an ordinary sheet of paper acts as a kind of template. For example, A4 size printer paper is good for making a template.

Preliminarily measure the sheet under the square using a ruler. The size of the diagonal of the square must be equal to the length of the circumference of the tube to be cut. The excess parts of the sheet are cut off.

  • Fold the sheet diagonally, aligning the opposite corners;
  • Turn the resulting triangle so that the line for the hypotenuse trimmer is perpendicular to the pipe axis;
  • In this position, wrap the paper around the pipe surface, aligning together the extreme points of the hypotenuse;
  • Mark the line of any of the triangle’s cathetuses with a marker;
  • Cut the pipe along the planned line.

It is quite convenient to use this method to mark and cut the pipe at a 45º angle within the diameter range of 32 to 63 mm. For more convenient marking it is recommended to take thick, but soft paper. You can also use paronite and similar materials.

Professionally made templates for shaped cutting of pipes allow to make cuts with very high precision. However, a gap between the prepared blanks is not excluded. In the connection of metal pipes it is “closed” by a welded seam, when connecting plastic parts, a specialized cord for soldering is used.

The technology of cutting according to the templates allows to obtain different angles of cut. But in order to form the template for angles other than 45º you will need to do the math and according to calculation data to cut the template from paper or similar materials.

It is true there are computer programs designed to save the master from making calculations. Templates for pipe cutting such programs print out on a printer.

A simple calculation program based on MS Excel makes it possible to calculate and draw a template for practically all pipe diameters and required cutting angles.

All the user has to do is to enter the appropriate values into the “Outer diameter” and “Angle of cut” cells. According to these parameters will form a mold, which can be sent for printing.

Note! Calculation of the points of the curve is based on only two given parameters. the pipe diameter and the required angle of cut. The disadvantage of the program. it does not take into account the thickness of the mold sheet, which leads to minor inaccuracies

There is a simple tool, often used in everyday life, mainly for woodworking. It’s called a jigsaw. So, the same tool is suitable for cutting pipes, and at different angles.

The chisel is available for sale, but if you want you can always make it yourself and adjust the design to the desired diameter of the pipe:

  • Take a wooden board of width equal to the diameter of the pipe, length 400-500 mm;
  • Take two more boards with the same dimensions, but the width increased by the thickness of the first board;
  • Of the three boards to assemble a construction in the form of an inverted letter “U”, with the first board as the base;
  • In the central part of the design mark out a rectangle, two sides of which run along the inner boundaries of the side boards;
  • Divide the rectangle diagonally and along the lines obtained on the upper faces of the side boards, make cuts down to the base.

This is how you make a template for cutting at a 45º angle. But with the help of a protractor you can mark almost any angle and make cuts for cutting the pipe for a particular angle.

How to cut the pipe evenly at an angle of 90 degrees

When cutting a pipe to the right size, there are a few nuances. It is necessary to take into account: the material of manufacture, the angle at which to cut. If the angle is straight, then the marking is done as follows:

  • To measure the required length, draw a chalk or a marker line for a trimmer.
  • At the level of the mark, wrap the pipe with masking tape or a sheet of paper. You have to make sure that the edges of the tape match up with each other. This will ensure a straight cut.
  • Cut the pipe with an angle grinder. Exactly as the marking is made is only possible if you make the cut in more than one pass. After a small kerf you need to rotate the pipe by 20 to 40 degrees until it makes a full turn.
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It is impractical to make a marking with a tape measure. When wrapped around a pipe it breaks, making it impossible to evenly draw a circle.

How to weld at any angle, not just 45 and 90 degrees

How to weld pipes at different angles of 45 and 90 degrees Welding pipes is not an easy thing, and even more so if you want to make sure they do not leak during operation. But even if this is not necessary, there are often certain difficulties if you want to weld one pipe into another at a certain angle.

This is quite difficult for an untrained welder to do. To do this, you first need to make a markup of the pipe, and then evenly cut it with an angle grinder and weld it into another pipe. What are the tricks for this? How to quickly and correctly cut the pipe at an angle?

Marking pipes for welding at an angle

Very often when performing plumbing installation, it is necessary to weld the pipe at a certain angle. In this case it is necessary to fit the pipe so that it sat as accurately as possible, which in most cases will ensure that there are no leaks.

The easiest way to weld a pipe at 45 and 90 degrees, and mark it for welding can be done with an ordinary piece of paper. For this purpose, you will need a square piece of paper, which must be folded diagonally. Thus you can get a simple template for marking pipes at an angle.

You can also use a small pail of water to mark the pipe, but this method is suitable for marking pipes of not too large a diameter. After making the desired angle on the container and tilting it, you can dip the tube into the water. After that, you need to take out the tube and carefully circle the mark obtained. Well, you can read about how to weld channel bars on the website

Using an angle for marking a pipe

No less simple way of marking pipes for welding from the previous one, differs in the variant that uses a small metal angle. It is a little tacked by welding in the place where you want to weld a pipe at an angle, and then it is circled with chalk welded pipe.

A great way, which allows you to quickly mark the pipe at any angle, is also associated with the use of long skewers with rubber bands. You can also take electrodes for this purpose, but they are too long, so it will not be very convenient to work with them.

To mark the pipes in this way, the pipe to be welded should be placed against another pipe, put two rubber bands on it, and then insert the electrodes, one to one and very tightly. Having set the pipe at the desired angle, it is necessary to pull or remove the electrodes, thereby forming the desired angle at which to cut the pipe.

When the marking is exactly ready, it will be enough to take a pencil or a piece of chalk with sharp edges, and sketch a line on the pipe at the edges of the electrode. By cutting the pipe exactly along the line, you will get the correct angle for welding.

There are other ways of marking the pipe at an angle for welding, for example, using computer programs. However, as a rule, in working conditions, far away from the computer, and most often, even at all, have to twist all kinds of ways.

Using a computer program

To implement this method of marking pipes for cutting requires a computer with special programs. First you need to make a drawing, which shows the transverse dimensions of the product, as well as the planned angle of incision. You need to get a virtual template.

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Print it out on a printer. And here it is worth understanding that the larger the diameter of the pipe, the more sheets are needed to print it. Then you need to carefully cut out the details of the drawing from all pages and glue, it is best to use for this purpose clerical tape. It remains to attach the template to the pipe and draw the markings.

This method of solving the problem is characterized by high accuracy. All necessary programs can be downloaded online, they are free to download and use. There you can also find a template for cutting pipes at an angle. You just have to print it out and cut it out. Simply wrap the template around the pipe to mark it.

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