How To Cut Pipe At 45 Degrees Angle Grinder

If the pipe is shaped

But, for example, we have a profile pipe, not a round one. Manual marking of a profile pipe can lead to a huge error. The best way out of this situation is to make a template from a larger diameter profile. Take a small section of a profile pipe and use a protractor to mark an angle of 45 degrees. Cut off the angle grinder according to the markings and grind the edges so that it does NOT get hurt by burrs during operation. Then we just need to insert a profile of a smaller diameter into the template and, having made a marking, cut it off.

In this article, we looked at how to cut a pipe at 45 degrees. Using one of the methods listed above, mark up and cut. For a smoother cut, it is best to use an angle grinder. When cutting by welding, experience is required, otherwise there will be irregularities on the cuts. In extreme cases, you can use a hacksaw for metal. There are a large number of different angled pipe cutting attachments on the market today, but they are expensive to purchase. It is easier and cheaper to make yourself a template once, and apply it as needed.

What tools exist

Pipe cutting tools, like most existing tools, are manual and electric. In both THESE niches, in turn, there is a specialized professional and applied amateur tool (find out here how to thread a pipe at home).

For example, the question of how to cut a metal-plastic pipe can be solved in two ways.

On the one hand, there is a professional pruner, but on the other, you can use a regular hacksaw.

  • If we talk about pipes made of various types of plastic, then for material with a cross section of up to 75 mm, a lot of Special scissors are produced, professionals call them pruning cutters. Since the plastic material is quite dense, all secateurs are equipped with a gear mechanism that serves to increase the compression force. The price for such scissors starts from 10 and, depending on the quality, can go up to 150.
  • The next pro in cutting plastic is the Disc Cutter. If the pruner works like a conventional scissor, then the cut is made with a sharp, heavy-duty disc. It presses against the wall and rolls around it makes an incision.

The pipe cutter is indispensable for thin-walled products, since it is difficult to cut a metal-plastic pipe with a thin wall with pruning shears after it crumples.

  • The question of how to cut a large-diameter pipe evenly in professionals is solved simply, for this there is a guillotine adapted for cutting round products. Its principle of operation is classic, a knife on top, below, a semicircular bed.

The device can be electrically driven and cut hydraulically. There is also a guillotine with a manual, screw drive.

  • In addition, there are a lot of specialized machines. So for a perpendicular cut, lathes are used. If the question arises of how to cut a pipe at 45 degrees or at any other angle, then band saws are usually needed here.
  • But the necessary device is not always at hand, and buying it separately is expensive and does not always make sense. An ordinary hacksaw for metal is considered the leader among amateur tools. She easily copes with both metal and plastic, the main thing is to correctly markup, but more on that later.
  • Every good owner always has an angle grinder. With its help, having a certain skill, you can quite accurately dissolve pipes of small and medium diameter. A big plus of an angle grinder is that it can be used to work on any material, such as polyethylene, cast iron or steel.
  • At the end of our rating is a jigsaw. It is undoubtedly possible to work with it, but it is difficult to make precise cuts, plus the edges of the pipe will need to be additionally refined.

Marking gon

If you have a square at hand, then you must first determine the exact line of the end of the pipe, including the profile one. I applied the tool and smoothly Shift it over the surface, we get a 45-degree cut line. The same technique is used with a 30 degree angle.

How to cut a cast iron pipe

The main difference between cast iron and ordinary steel is its high brittleness and large wall thickness; its accurate cutting must be performed in the following sequence:

  • A marking corner is drawn using a template using a scribe, for

Supports under the part put a wooden shield or board.

  • Perform an angle grinder shallow cut of the surface along the entire perimeter.
  • Further, the groove is deepened in several passes until the two parts are completely separated.

How to cut a pipe straight. common options

Accurate pipe cutting looks simple only at first glance. This lesson is quite problematic, especially if you need to cut at a certain angle or cut a complex configuration. You can do this both with your own hands and using a specialized tool.

Much here depends on the diameter of the product, wall thickness, material from which the pipe is made and of course the tool.

Making a template for trimming a metal profile

If you need to cut a large number of pipes, you can make a template from a metal profile of a larger diameter using a paper letter in the above way. The angle of inclination is checked with a protractor or a construction square. in this case, the two edges of the trimmed parts of the template are connected.

When working on the part to be cut, a template is put on in the right place and pressed tightly, the markings are applied with a sharpened scribe when tracing the template contour. The part is cut in several passes with a gradual deepening of the groove.

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Collar insert

To get the branches of metal pipelines in the form of tees, a collar insert is used, for which it is necessary to cut the edge of a round pipe adjacent to the walls of another at a right angle. To implement the method, proceed as follows:

  • Cut the edges of the workpiece at right angles using the previously described method.
  • On the round end surface, four equidistant points are marked with a marker, located at angles of 90 and 180 degrees to each other.
  • The circumference is measured, the resulting diameter is divided by 3. From two diametrically located points, the resulting distance is laid, after which these points are connected to two other smooth arc, drawing the fishing line with a marker.
  • An angle grinder is cut along the markings and the semicircular segments are separated, after which the part is ready for welding. With small inaccuracies in mating, it can be sealed with a sledgehammer, attached to the round surface of the second element.

Paper mold for pipe

One of the most common ways to make a pattern for pipes with a round surface is a method for which you will need lined writing paper, a ruler and a pencil. To obtain a paper pattern, proceed as follows:

  • Draw a circle on a piece of paper with the diameter of the pipe to be cut, break the circle into 16 equal segments, each time dividing large segments into two equal.
  • Measure the circumference by multiplying its diameter by the number Pi, equal to 3.14. Lay this size on both sides of the axis of the circle in equal segments, each of which is divided into 8 equally sized parts.
  • Draw from segments on a straight line vertical mowing line up and horizontal from the points set on the circle.
  • The places of their intersection are connected with a smooth line and, in total, a template applied to the paper is obtained, which is cut out and glued to the trimmed surface. For trimming, it is better to use an angle grinder with a small diameter disc. the surface will be curved and when using a large disc, the error will increase.

Some tips for cutting pipes

The use of a tool such as a pruner or a disc pipe cutter does NOT require special preparation, it is easy to work with high quality. It’s a completely different matter when you have to use the means at hand.

Tools used

There are several ways how to cut a pipe; for this, construction and industrial tools are used for metal processing. Of all types, only the angle grinder allows you to get curved surfaces without further processing with the closest location of the edges.

Performing a longitudinal cut

To make a high-quality even longitudinal cut, you can use a simple device in the form of a metal corner. It is securely fixed on a flat wooden surface with screws and the pipe is pressed against it with a heavy load. An angle grinder is used to make a longitudinal section of the pipe top, slightly support the disc against the surface of the angle.

The corner can be attached to the pipe with clamps and a cut can be made along the upper wall of the corner in the same way.

How to cut 45 degree pipe with high precision at home

When working on the installation of gas or water mains, it is often necessary to change the direction of the mowing line, while the pipeline is cut and then welded at the desired angle. Most often, the direction changes by 90 degrees, and the question arises. how to cut the pipe at 45 degrees in order to accurately connect the joints during welding.

It is possible to cope with the problem with cut edge angles of 45 or 90 degrees with the appropriate knowledge and techniques, which will help to save not only time, but also materials during work. At other angles of rotation, it is impossible to solve the problem using a ruler and writing paper. you will have to call computer equipment for help.

  • Cutting at 45 degrees
  • Making a template for trimming a metal profile
  • DIY pipe miter box
  • Cutting at 90 degrees
  • Collar insert
  • Techniques for cutting pipes at an angle of circular cross-section
  • Paper mold for pipe
  • Tools used
  • For individual use
  • For industrial use
  • How to cut a large 45 degree pipe
  • How to cut a cast iron pipe
  • Some tips for cutting pipes
  • Performing a longitudinal cut
  • Oblique cut

How to cut a cast iron pipe

The main difference between cast iron and ordinary steel is its high brittleness and large wall thickness; its accurate cutting must be performed in the following sequence:

  • A marking corner is drawn using a template using a scribe, for

Supports under the part put a wooden shield or board.

  • Perform an angle grinder shallow cut of the surface along the entire perimeter.
  • Further, the groove is deepened in several passes until the two parts are completely separated.

Some tips for cutting pipes

Households sometimes require cutting to join the pipeline at different angles or axially. The main tool for performing THESE works is a universal angle grinder and discs for metal.

DIY pipe miter box

Using the template is too convenient. you have to cut along the mowing line, keeping the angle grinder suspended, which leads to large errors. If you have a welding machine, you can make a simple miter box. guides for the disc of an angle grinder, and not letting it go to the side.

To do this, use a previously made template, in the side of which a hole is drilled and a nut is welded. When working, a homemade miter box is put on the profile, a bolt is screwed into its nut and the device is pressed against the profile surface. an angle grinder with a disc for metal makes a cut, slightly presses the disc to the side surface of the device. It is clear that with long-term work, the edges in the miter box are gradually grinded, and although the process occurs simultaneously on all edges, some errors will appear over time. Therefore, the device is better made of hard wear-resistant metal in order to increase its service life and get a more accurate tool.

Techniques for cutting pipes at an angle of circular cross-section

Round pipes of different diameters are cut at an angle when the direction of the pipeline is changed, while it should be borne in mind that a straight cut at the desired angle, unlike a rectangular section, will NOT lead to a tight joint of the edges. Therefore, special patterns are used, in which the marked edge has a curved shape, which allows you to obtain a High density of connection.

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How to cut a large 45 degree pipe

It is better to cut a large-sized product in a domestic environment using a large angle grinder or a gas burner. the walls with large diameters are usually thick. Cutting is best done in segments, leaving narrow transitions that are removed at the end.

Making a template for trimming a metal profile

If you need to cut a large number of pipes, you can make a template from a metal profile of a larger diameter using a paper letter in the above way. The angle of inclination is checked with a protractor or a construction square. in this case, the two edges of the trimmed parts of the template are connected.

When working on the part to be cut, a template is put on in the right place and pressed tightly, the markings are applied with a sharpened scribe when tracing the template contour. The part is cut in several passes with a gradual deepening of the groove.

How to properly cut pipes from different metals at 45 degrees and 90 degrees

How to cut a pipe at a specific angle? It has already been said about a straight cut. Next, we will consider the methods of separating tubular billets from various metals with the introduction of a metal miter box for metal. In addition to the convenience of cutting, the miter box minimizes the amount of sawdust, which is important if the work is done at home.

The locksmith’s miter box consists of two units:

  • A manual hacksaw, which has upper tubular guides, which allow you to hold the tool strictly perpendicular to the cutting direction;
  • A channel-like body, in which holes are pre-made. with slots on both sides to help the worker make accurate corner cuts (usually 90 ° and 45 °, but there are miter boxes with a protractor, on which you can make corner cuts in the range of angles from 100 to 1150).

Distinguish between cast and stamped wort. The former, although cheaper, do not work well under conditions of intermittent bending stresses.

It is important to choose the right version of the hacksaw. For corner cuts, only Precision tools with upper guides are suitable, which are additionally secured against bending by spring stops.

The choice of standard size for a locksmith miter box is made according to the following parameters:

  • Width of the miter box, which determines the maximum diameter of the workpiece.
  • The length of the miter box, with an increase in which the accuracy of the cut increases.
  • Stock Protractor.
  • The depth and width of the through cuts in the side walls of the channel: the deeper they are, the less sensitive the miter box is to changes in cutting conditions. the state of lubrication, an increase in the temperature of the hacksaw blade and the workpiece. On the other hand, when sawing large diameter pipes, the increased width of the cuts will negatively affect accuracy.
  • Body material: steel (cast or stamped) miter box should definitely be preferred over plastic, although the latter are lighter.

How to cut a pipe at a 45 degree angle? When working with a miter box, first you need to wash down the material, and then, after making sure that the wall is perpendicular, gradually increase the pressure on the hacksaw blade.

Methods for cutting large diameter pipes

The concept of “large diameter” should be considered in relation NOT to main pipelines, but to those that can practically be found in the household. In accordance with the norms of SNiP 2.04.01-85 Du for internal water supply and sewerage systems DOES NOT exceed 80. 100 mm.

Most pipe cutters are NOT designed to work with this diameter, so you will need to use a hacksaw. Hacksaw machines can cut with a circular motion of the blade, or with a reciprocating motion. The productivity in the latter case is lower, but the durability of the hacksaw blade increases. Since the cutting process can take a long time, care should be taken to ensure the best cut quality. For this:

  • The teeth are periodically lubricated with medium viscosity oil (such as “Industrial. 20”);
  • Correctly distribute the maximum force: the longitudinal stiffness of the blade was, and the tool steel was hard and brittle. Therefore, breaking the canvas is easier than ever;
  • At high-speed cutting, due to the heating of the workpiece, a spontaneous thermal expansion of the metal occurs. Therefore, the width of the cut should be adjusted by selecting the blade of the required thickness;
  • Closer to the end of the separation process, the cutting speed is reduced to avoid “falling” of the blade into the clamping device.

Additional difficulties arise when it is necessary to cut a workpiece from soft metals. copper or aluminum. “Spreading” the metal of the workpiece on the hacksaw blade degrades the quality of the cutting zone, so periodically you should clean the side surface of the blade from chips.

What and how NOT to cut polypropylene

The ease of cutting polypropylene pipes creates the illusion that special tricks are not required when separating such plastic. But this is not the case. The following types of instruments are practically used:

  • Pipe cutters with rotary knives.
  • Ratchet pipe cutters.
  • Hand saw.
  • Electric miter saw.

A hand hacksaw should be put in last place in terms of cut quality. Not only does it leave the largest amount of shavings (which, by the way, is quite difficult to remove), but at the end of the separation you will get a rough burr, dusty will have to be done with a file (have you tried cleaning such a file after working with plastic?).

The miter saw is fast. Even too fast to stop the tool in time after the separation of the workpiece has taken place. I missed a little. and injury is inevitable.

Therefore, this type of equipment should be used only when it is necessary to cut / trim polypropylene pipes of large diameter and with thick walls.

How To Cut Pipe At 45 Degrees Angle Grinder

The ratchet pipe cutter will provide you with the best cut quality. And arthrosis, because the handles of the cutter require a lot of force at all times. Therefore, ratchet cutters are good for single cuts.

What is left? That’s right, Rotary Knife Pipe Cutter.

Bevel cutting technology

If almost everyone can cope with the task of how to cut the pipe exactly, if desired, then it is much more difficult to perform the correct angular cut of the pipe, moreover, at home. And it is very difficult to cut the end face of a part in a figured way, if you need to insert one. non-vertical, and an inclined part of the pipeline into another. How to cut a pipe for a pipe is an almost insoluble task without knowledge in the field of descriptive geometry and joint development. There are, however, also applications for the computer, but there must be careful scaling. Therefore, if possible, you should either avoid such profile joints altogether, or use various fittings.

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How to properly and safely cut metal angle grinder

This refers, of course, to tubular blanks. If such work is performed often, it is enough to purchase a special angle grinder, otherwise it is better to get a support disk, which will be able to support the main one during the angular cut.

The disc rotates very quickly, which causes hot sparks and chips to fly away at high speed. For safety, it is strongly recommended that you protect your eyes, wear gloves, safety shoes and headphones.

Before cutting straight off the pipe of the angle grinder, select the blade that best suits your application. Make sure the maximum rotational speed of the disc is higher than the maximum rotational speed of the tool; this will protect the disc from excessive stress and destruction, eliminating the risk of serious injury.

Abrasive end wheels are used to cut pipes. The raised and depressed center discs are ideal for hitting tight corners and ridges as they allow for different angles of entry into the metal; these discs should not be driven too deep, as changed disc geometry can interfere with and damage the rig.

Let’s briefly consider the possibilities of cutting discs, which are installed on an angle grinder:

  • Blades with aluminum dioxide cutting edges. With oblique cuts, they are ineffective, therefore they are used when cutting pipes up to ¾ “.
  • Abrasive discs made of aluminum oxide, aluminum oxide or silicon carbide. They require an angle disc, with which they can cut the pipe under 450 easily, accurately and quickly.
  • Petal discs. Used for cutting pipes made of non-ferrous metals and alloys.
  • High speed steel discs. The most versatile type of tooling, practically NOT having any restrictions on the number of spindle revolutions. Angle disc is required.

What tools are used to cut pipes

Now in the arsenal of almost any home craftsman there is a universal grinding machine. “angle grinder”. How to work with her?

Right angle pipe cutting technology

Excluding the options used in industry. mandrel dies, radial cutting devices. there are not so many solutions available to the DIYer. In any case, you will need either a hacksaw for metal or a hand sander. Adjustment is facilitated by the fact that the tubular product always has only linear contact with the cutting plane.

How to cut a metal pipe straight? It is enough to firmly grip the metal workpiece with parallel clamps, mark the cutting area Marker and cut to size. Of course, within the gaps between the hacksaw blade and the mounting bases of the hacksaw, backlash is always possible, as a result of which a burr will appear on the joint surface. If, in the future, an inclined section of such a joint is attached to the second element of the pipeline by manual arc welding, then this is not a big deal: everything can (within reasonable limits) be corrected by changing the thickness of the weld. Otherwise, you just need to select a new tool and constantly monitor the marker lines during the cutting process.

It is even easier to cut the end using a Pipe Cutter (it is inexpensive, in a pinch you can borrow it from a more skilled neighbor). This tool is equipped with a special screw-type feeder. The sequence of actions with the introduction of a single-roller Pipe cutter is as follows:

  • The surface of the workpiece is thoroughly cleaned from traces of dirt, grease or scale.
  • The section to be separated is tightly compressed with jaws (if the pipe is made of soft metal, for example, aluminum, it is better to put a rubber corrugated plate between the jaws: the clamping friction will increase).
  • Rotating the feed screw, the cutting roller is gradually deepened into the wall, until the roller cuts through it.
  • Change the position of the round pipe, rotating it by 1200, so that the cutter wheel comes into contact with the new section of the cut, and repeat the transition.
  • We carry out one more reinstallation. and the straight pipe segment is ready. It remains only to clean the overlap areas.

There are three- and four-roller pipe cutters, where the cutting process is quite simple, since the number of resettings is accordingly reduced.

How to cut steel pipe at 45 or 90 degree angle? First, you should check if the existing pipe cutter is suitable for sawing a specific part. The following are taken into account:

  • Material tensile strength;
  • Diameter or wall thickness;
  • Condition of cutting edges of roller / rollers and clearances in their axes.

How to cut thin walled pipes

The specification is essential if a powered tool is used. For thin-walled pipes, it is important to maintain a clean cut along the entire wall thickness.

When using thin cutting discs, remember that they generate less heat during operation, generate less tool vibration, perform cuts in less time and waste less metal per cut.

  • Clamp the work piece securely close to the intended cutting point and ensure that the work piece does not move.
  • Using the template, check the correct installation of the tool and the attachment of the disc, and start the sander with no load. This is necessary in order to eliminate Possible problems with wheel balancing.
  • At the beginning of dividing the workpiece, the disc is always fed at an angle of 90 ° to the workpiece. Make sure that the protective cover is located between the workpiece and the workpiece. During cutting, it is necessary to avoid hitting the disc on the metal, for which the process begins from the area where the metal is thinnest.

Successful corner cutting of round pipes requires some skill and dexterity. It is best to use a miter box, and when using a mechanized tool, special angular discs that support the main.

-advice on how to cut straight off a round pipe angle grinder: