The main purpose of the circular saw is the sawing of such materials as: boards, soft metal, laminate, timber, plasterboard, etc. Due to its power, this tool is almost indispensable where the exact longitudinal and inclined cutlery is required. However, the principle of the circular saw device has the only minus - it is the impossibility of obtaining a curvilinear form line due to a limited area of application.
The main purpose of the circular saw is the sawing of various materials: boards, soft metal, laminate, bar, drywall, etc.
It is worth considering one very important rule - despite the power of this device, working with steel and other ferrous metals with it is prohibited . Circular saw is indispensable when carrying out construction. In addition, it is often used by performing repair work in the house.
If you have made the decision to put in your apartment laminate, shelter the walls of the balcony panels, repair the floors or the ceilings with their own hands, then keep in mind that without a disk saw you can not do. With the help of it, you can achieve the most accurate and neat cuts. With large volumes of sawing, the use of an electrolybiz is inappropriate, and the chainsaw will not be able to provide smooth cuts.
Constructive features of circular saws
The device of any circular saw is based on one similar design. Differences can be as qualities as:
The layout of circular electroopers.
- performance;
- additional functions;
- drive power;
- Cut thickness.
With the help of additional functions, the area in which the disk saw is used can expand significantly. Such a tool is characterized by increased security, and work with it is usually much easier and more convenient.
As for the circular saw device, it is represented as a flat bed equipped with a drive, on which a cutting disc is installed in a vertical position. Also on the saw there is a handle with a button for starting and several auxiliary devices to which include:
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Circular saw when working must be kept very tight.
- nozzle that performs the function of removal of sawdust;
- guide rules;
- Hinged devices that are allowed to saw material with respect to a certain angle.
Cutting is performed by pressing the bed to the panel (or any other material). The disk that rotates up to 5000 rpm, begins to cut the material.
3 Main categories of disk saws
- With the power of the electric motor from 0.8 to 1.2 kW. The saw for the saw in this case may have a thickness of no more than 45 mm. The diameter of the cutting discs in such a tool can be 130-160 mm. For sawing material having a complex texture, this device will not fit. Its cost is quite small.
- With the power of the electric motor up to 1.8 kW. As for the depth of the cut of such a device, it does not exceed 60 mm. The diameter of circular discs saws of at least 200 mm.
- With engine power in 2 kW. This device is equipped with discs for cutting up to 350 mm with a diameter. With this device, a cutting sheet metal is possible. In most cases, in the device of such saws, a stationary fastening function to the workbench is provided, which greatly facilitates many user tasks. As you understand, the cost of such a tool is high enough, but the professional level he has, it is worth it.
Basic requirements for circular saw
When choosing a circular saw, pay attention to the presence of such frequently encountered additional (useful) functions as:
When working with a circular saw, you need to protect your eyes with glasses, and the hands of gloves.
- Ability to adjust the speed of rotation of the disks. Keep in mind that the method of implementing this function can be 3 species: mechanical and electronic. It is possible to achieve perfectly smooth and neat cuts (without a burr) only by adjusting the speed of rotation of the disks, since each material requires an ideal approach. This type of tool is universal in its application.
- The immersion function into camp material. This quality is a big advantage of the tool. In particular, it is convenient in the process of sawing whole plates. Due to the ability of a displacement in the vertical plane of a disk of such a circular saw, it is possible to cut the material immediately from its middle.
- Ability to quickly stop the rotation of the disk. Such quality of the tool provides a safer work process.
- The presence of built-in backlight and laser markup will make your work much more comfortable and safer. In addition, thanks to these functions, the cut will be as accurate as possible.
- The function of a smooth start of a rotating disk is also capable of significantly improving the level of security, since during the inclusion of the tool, the possibility of a dynamic jerk is eliminated. In particular, the presence of this feature is desirable for devices equipped with powerful electric motors. In addition, the mechanics of the instrument and the electrical network are subjected to a significantly lower load.
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The device saws equipped with powerful electric motors has special elements intended for fastening on a surface convenient for performing surface operation. It provides fixedness of the tool. As for the saw, then in order to implement it, the material is applied directly to the rotating disk. The presence of such a function greatly facilitates the work of the user, especially if it is faced with a problem to cut a very large volume of material.
A little about circular saw discs
For different materials, it is assumed to use different disks.
The number of technical parameters that the circular saw discs may differ: the height of the teeth, their frequency, or quantity, the geometry of the sawing profile, etc. discs can have 2 main destinations:
- to work with soft materials;
- To work with the metal.
In the first case, the disks are provided by the positive angle of sharpening, in other words, the teeth have a slope toward the rotation. Metal saw discs are made with a negative sharpening angle. Their teeth have carbide attacks that are tilted in the opposite direction of rotation. In a wide range of stores, you can find discs specially designed to work with a specific type of material (for example, for the cutting of laminate or plastic).
When a selection of discs, several basic rules should be taken into account:
If the teeth on the circular saw disk are rare, then it is cut to get more ribbon.
- In order for the cut turned out to be as accurate as possible and smooth, it is recommended to choose a disk with a large number of teeth. This Council applies to work only with soft materials.
- If the disk has rarely located teeth, the sawing will turn out to be more torn. Such a disc is designed to work with stable, solid materials.
- In order to carefully cut the boards or chipboard, a disc applied a disk having a frequently located teeth, the amount of which is about 100 pcs.
To work with wood having a large number of solid bitch, it is recommended to use the enhanced disk that has a minimum amount of teeth - about 24 pcs.
As you understand, get a smooth cut in this case will not work.
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The designation of the size of any disk for the circular saw is always performed in the same way. As a rule, this presence on its surface 2 digits, which denote the disk diameter and the diameter of its holes intended for the landing sleeve (for example, 160 x 30). Accordingly, when buying a disc for a circular saw, you need to know the standard size you need. It should be noted here: the installation of smaller diameter disks, that is, those that do not provide for the design of the tool, is not strongly recommended. Otherwise, there is a risk that in the gap that forms a protective cover, and the disc in the process of operation can get a finger.
How to choose a circular saw?
Choosing complex and dangerous electromechanical instruments, it is very important not to lose sight of any detail. Carefully inspect the device as much as possible and get detailed consultation of the seller about the operation of the tool. Save in this case is not recommended. When buying, do not forget to get a warranty for the reliability and safety of the circular saw.A little about basic safety measures
When changing the material, it should be provided for its reliable fixation. In no case to the instrument is not turned over the rotating disk up.
Before applying a disc, make sure that it is suitable for working with the resulting material. Performing work, you need to wear special protective glasses that will help protect your eyes from flying out widths.