Bevel the hole. Chamfer - what is it? Scope and purpose. Chamfering methods

Typically, when planing wooden blocks or narrow boards, it is often necessary to chamfer small size from the edges of the workpiece, in order to reduce the sharpness of the corners, as well as make them more beautiful. To do this under normal conditions, you have to hold the workpiece with the plane at angles of about 45 degrees, which is not particularly convenient, especially when you are working with an electric plane, which is many times heavier than a manual one. Decide this problem you can use your own special device, which will look like a longitudinal corner, where the block will be placed, which will be processed in the future, and its edge will be located at the top, which is convenient for processing.

This arrangement of the workpiece in a homemade device will also help for planing faceted and round bars, as well as wooden handles, which are inconvenient to process on a flat surface. The author of the homemade product thought about making such a device, since the need for it arose when he was planing blanks for shovel handles, because with such a device the work was completed faster, and it was also much more convenient to work this way.

In order to do this device, necessary:
Two wooden planks 2 cm thick, 4 cm wide, and 6 cm wide, and 2 m long.
Wood plank 2 cm thick, 5 cm wide, and 50 cm long.
Wood screws 4x50 mm.
Drawing and measuring tools (pencil, tape measure and square).
Awl.
A jigsaw with a file for curved cutting.
Electric drill-screwdriver.
Metal drill with a diameter of 4 mm.
Spherical cutter for wood.
Cross (curly) bit RN2, for driving screws.
Sandpaper.

When all the materials and tools are available, then you can begin the most interesting part, this assembly process.

Step one.
First of all, you need to decide on the dimensions, you can use the dimensions given here, but if your workpiece has big sizes, then we simply increase the size of the milestones components until necessary. Using a pencil, we mark a plank 6 cm wide, then using a screwdriver and a drill, we drill holes along its entire length, on one side there are 5 or 6 holes for screws, as a rule, the more, the better, and the more reliable.


Step two.
Having positioned the plank on the opposite side, using a countersink installed in a screwdriver chuck, we increase the dimensions for the screw heads, using a spherical wood cutter.


After we have enlarged the holes for the caps, we insert screws into these holes and screw our plank to the end of another 4 cm wide plank.


What should happen at this stage can be seen in the photo, this is the so-called wooden corner, its length is 2 m, made so that there is a reserve in length used in processing workpieces, thereby increasing the range of application, since you do not have to combine the sizes of either small or large devices, and it is easier and more practical to make one, but longer .


Step three.
Using a jigsaw, we cut out a smaller piece from a board, which will be the supporting part, with which the device will be held on a flat surface, this process requires sufficient precision and accuracy; for better accuracy, use a special corner stand on the jigsaw, which will help in creating even cuts. When working with a jigsaw, be extremely careful and do not forget to wear safety glasses and gloves, protecting yourself from accidental contact with sawdust and wood dust, as well as protecting yourself from the tool slipping out of your hands.


Step four.
The previous workpiece, whose role is to hold our corner part, must be drawn, the lines should correspond to an angle of 45 degrees, as on the main part, for a better match, attach the future support and outline it with a pencil. To secure it, you need to drill holes for the screws in in this case There will be three of them, which is quite enough; we select the drill according to the diameter of the screws so that the thread passes without difficulty.


Step five.
Then we tighten the screws with a screwdriver, that is, we screw this workpiece to the end of our corner device, try not to overdo it with the tightening force, so as not to damage the support and form a crack in it.


The remaining part of the strip will also be useful; we make the same blanks from it using a jigsaw; you will need two of these.


We supplement the corner with two more supports, which will make it much more stable, and it will also acquire a larger workload, which is also important when processing. We screw them in the same way as the first support.
Step six.
The back of the device must be drilled on each side; we use a screwdriver with a drill whose diameter is equal to the thickness of the screw; for strength, we make two holes on each side to prevent rotation.


The location of the holes, as in the previous stages, must be processed with a spherical wood cutter in order to recess the screw heads and thereby eliminate accidental snagging.


Step seven.
Armed with a screwdriver and a bat attachment for driving screws, we tighten the screws into the workpieces.


Next we move on to more precise processing, for this we will use sandpaper, as usual, we start with a coarser one, gradually reducing the grain size as we approach the finish of grinding.
This is our homemade device done, now let's look at it from all sides for a full assessment.
This is what the back looks like.


And so the front part.


After you make such a device, you will be able to process bars without any difficulties or inconveniences, be it a wooden handle or a workpiece with square edges.


A device with a workpiece for processing.

All photos from the article

Which is better parquet board with or without chamfer? What advantages does having a chamfer provide, and what problems can it create for the owner of an apartment or house? How to chamfer when making solid parquet with your own hands? Let's figure it out.

What it is

Chamfer is beveled, rolled edges. parquet board. They highlight the seam between adjacent boards, emphasize it, giving the surface a voluminous appearance.

Note!
The chamfers give the three-layer parquet board the appearance of a more expensive material - solid parquet.
This tendency to style cheap materials as expensive ones is in demand, because the building materials market, as we know, is formed by buyers.

There are several types of chamfers based on shape and depth:

  1. Microchamfer (depth 0.5 - 1 millimeter);
  2. V - shaped, about 2 mm deep;
  3. Deep (from 3 mm) rolled, with rounding;
  4. Deep (from 3 mm) V-shaped;
  5. Deep planed.

The chamfer can be two- or four-sided. In the first case, it is removed only on the side edges of the board, in the second - from all four sides.

Useful: the double-sided chamfer highlights the longitudinal seams.
They, in turn, visually lengthen the floor of the room, making it look like a corridor.
If in an already elongated room, the obvious instruction is to prefer a covering with seams highlighted on all four sides.

Pros and cons

Let's compare two types of parquet boards based on their main consumer characteristics.

It would seem that an objective comparison is not in favor of the board, which has so rapidly supplanted competing solutions. Marked seams are noticeable and, contrary to the claims of numerous sellers, accumulate dirt. Perhaps we are missing something?

Advantages

The main advantage of chamfered material in the eyes of buyers is, of course, its more attractive, solid appearance.

However, the list of advantages is not limited to them.

  • Fluctuation in the size of the parquet board with increasing and decreasing humidity is absolutely inevitable. Dry and warm air a room heated in winter causes the wood to dry out; Since the strength of click locks is limited, the seams between adjacent boards always become visible sooner or later. However, when the seam diverges in a deliberately made recess, it does not catch the eye - the joint still looks presentable;

For technological, ergonomic, and more often for aesthetic purposes, a chamfer is used to process the edges of products. Any person has heard this more than once in their life. a short word, often without knowing its meaning. So, chamfer - what is it and where can it be found? How important is this detail?

Chamfer - what is it?

First of all, this is the bevel of the edge of the corner of the material. It is used for technological purposes in mechanical engineering and metalworking to improve the quality of the weld. In the same area you can find a chamfer on the mounting hole, which serves to reduce the likelihood of injury from sharp edges. The same method of preparing holes can be seen in the production of furniture, only in this case it is used for fastening parts flush (when the heads of bolts and screws are not visible).

For aesthetic purposes, chamfering is also used when laying floors. Thanks to this method of edge processing, cracks that form due to changes in temperature and humidity are not noticeable.

Mounting holes

As mentioned above, chamfering is used to process mounting holes. It serves, first of all, to reduce the risk of injury from the sharp edges of the hole, but is also used for fastening parts by tension. This processing differs only in the angle of bevel of the material. If the angle is usually chosen to be 45 degrees, then for tension fastening the recommended bevel inclination on the hole and shaft is 10 degrees.

Welds

Experienced specialists will say that a chamfer is necessary when performing. That this will not only ensure high quality connections, but will also greatly facilitate their work.

When joining two sheets of steel, a chamfer is used to circumvent the limitation on the depth of weld penetration of the seam. Structurally, this element can be made in two ways: with a straight and curved surface. In this case, the second method is more often used, since such a depression has a larger volume.

Wooden floors

When laying floors wooden planks there are many nuances to consider. This includes the quality of the material, the degree of drying, and the conditions under which the surface will be used. While the first two questions can be easily determined in advance, the operating conditions of the floor cannot always be reliably predicted. In this case, a chamfer is used. What it is was explained above. It will not only make the floor look neater and more beautiful, but will also help to avoid visible gaps between the boards, which are sure to appear over time.

When working with solid wood, the question may arise: “How to make a chamfer?” Moreover, a woodworking machine is not entirely suitable for this. First of all, the material is sanded clean (this will be impossible to do later). For chamfering, use an edge cutter on a bearing. This allows you to achieve ideal quality of the processed surface even with slight curvature of the boards.

Laminate

Today, not everyone can afford floors made of solid wood and parquet boards due to the high labor costs and loss of time to carry out repair work. You can increasingly find laminate floors on apartment floors. It is not only easy and quick to lay, but also has excellent performance and aesthetic qualities, in many ways not inferior to natural surfaces.

Currently, laminate flooring with a chamfer on the edge is more often purchased on the market. What is this and how does it affect the final result? First of all, it looks more representative, completely repeating the appearance natural wood. Secondly, this minor nuance masks changes in the gaps between the boards that appear during the use of the floor.

Many consumers are still skeptical about this floor covering. This is argued by the fact that a chamfer in a laminate is unacceptable, as this will allow dust and dirt to accumulate in the recesses and penetrate into the seams. This is not true because modern technologies production of materials makes it possible to make the laminate water- and dirt-proof over the entire surface. A high-quality lock will prevent debris from penetrating into the seams.

A chamfer is the surface of a product that is formed when processing rolled products or pipes with a bevel end edge material The chamfer is necessary to prepare the edges of sheets, beams and pipes for welding.

The main types of chamfer are:

  1. "Gas". This is the most cheap look chamfers for pipes due to their low quality. However, this type is one of the most common. This chamfer is removed using. The “Gas” chamfer can also be made in field conditions. Its surface usually has characteristic grooves, which are formed from a gas stream (propane or acetylene).
  2. "Plasma". Externally, this type of chamfer is practically no different from “mechanics”. It can also be classified as “factory”. A “Plasma” chamfer is an air plasma cutter, a compressor, and a compressor that forces the cutter to move strictly in a circle when setting a specific chamfer angle.
  3. "Mechanics". This is a factory chamfer, the most best quality. For chamfering “mechanics” and are used. In the pipe market, this bevel is mainly used due to High Quality chamfers.

What is the purpose of chamfering? When welding workpieces, metal penetration occurs, which subsequently ensures that the edges are connected to each other. If the metal thickness is more than 3-5 mm, obtaining a complete and high-quality connection becomes difficult. To obtain high-quality penetration, this type of processing is carried out: it allows you to create a so-called weld pool, which is filled with a welding compound during the welding process. It is important to remember that the edge prepared for welding is an edge with a chamfer and bluntness (see the figure and its designations below).

Types of chamfers (methods of cutting edges).

There are three main methods for preparing edges for welding: Y-shape, X-shape, and J-shape. Sometimes in some sources they are designated by the letters: V, K and U, respectively. Here and below, the above methods will be designated by the letters: Y, X. J. Most often, Y-shaped cutting of edges is carried out, but there is also an X-shaped method. In special cases, when there is an increased requirement for the quality of the weld, a J-shaped chamfer is used, that is, a chamfer with a curved surface (not to be confused with edge curvilinearity!).

In addition to the main methods of processing Y, X. J edges, there are a number of edge preparations. They are not so rare, and their description cannot be found everywhere. For example, GOST 5264-80 describes the butt type of connection with a broken edge braid; symbol– C14.

The diagrams above show several examples of processing methods:

1: example of Y-shaped chamfering method;

2, 3, 4: examples of the X-shaped chamfering method;

5: Y-shaped processing of the ends of two pipes with their subsequent connection;

Methods for chamfering.

There are two ways to remove a chamfer: mechanical and thermal (Table 1). Mechanical chamfering is carried out using milling, edge splitting and edge planing machines. For thermal chamfering, gas cutting machines (stationary or portable) are used, which perform plasma or oxy-fuel cutting. However, the more preferable method is mechanical, since it eliminates changes in physical and chemical properties material due to overheating. As is known, during heat treatment a so-called thermal influence zone is formed. The thermally affected zone is the carburization of the edge due to overheating of the material, which impairs weldability and increases the fragility and brittleness of the edge. But, despite these disadvantages, the thermal method is quite common due to its simplicity and speed of application, and the relatively low cost of equipment.

Table 1. Advantages and disadvantages of thermal and mechanical methods chamfering.

Table 1 states that thermal chamfering can be done quickly and cheaply. Of the processing methods described above, mechanical is still preferable, since it allows you to protect the metal from overheating and from subsequent changes in physical and chemical properties. In the West, by the way, this method is called cold-cutting (cold processing), that is, a type of processing in which there is no thermal effect on the metal, which means there are no changes in chemical and physical properties metal

Video material:

1. Pipe cutting by machine gas cutting CG2-11G, simultaneous chamfering of the pipe is carried out by tilting the cutter at the required angle.

2. Chamfering a 76x6mm pipe using the Mongoose-2MT machine

3. Chamfering a pipe using a TT series chamfer, as well as cutting a pipe with chamfering using a split pipe cutter P3-SD

The SPIKOM group of companies offers for supply equipment for chamfering pipes and metal using all of the above processing methods (gas, plasma, mechanical).

You can chamfer the board different ways. The most common of them are two: using manual and automatic tools. Negative side applications hand tools(various planes) is considered to have a high degree of injury risk, as well as a catastrophically low pace of work. Of course, automatic and semi-automatic milling cutters are ideal for these purposes.

On the website http://www.zaoportal.ru/product/view/111 you can purchase professional machine for chamfering. The main reason The reason why home craftsmen avoid purchasing such equipment is the apparent difficulty of operation. In fact, setting up and using direct purpose does not cause any difficulties even for a novice user.

Initially, it is important to choose the appropriate type of cutter. There are several types of chamfers. Choose the one that suits your specific task. The suitable cutter is not always included in the set with the router.

But acquiring it will not be difficult. Milling cutters of this kind are freely available in tool stores and cost pennies.

Preparing the milling cutter for work is as follows:

  • a hose from a vacuum cleaner is placed in the waste removal socket;
  • the cutter position is adjusted;
  • the router is fixed in a given position;
  • horizontal guides are installed.

The addition of a vacuum cleaner makes working much easier. When processing wood, there is virtually no waste left.

Initially, the cutter height adjustment head must be turned until it clicks. The depth regulator is pulled down 3 mm. Then it lowers onto the head. Thus, we obtain the “zero” position of the cutter.

Now, by rotating the height adjustment head, you can quickly and without much difficulty change the position of the cutter by 5, 10 mm.

The router guides should also be adjusted for correct chamfering. This is achieved quite simply - it is only important to tighten the nuts on the guides until the router slides along the surface being processed, as if on rails.


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