Summer residents who like to settle down on the site with their own hands, creating furniture or erecting buildings, it is vital to get a circular saw.
The function of the circular saw is to cut plywood, plastic, copper, aluminum and plexiglass sheets, which is facilitated by well–chosen saw blades.
However, to cut ferrous metals and steel sheets, saws with professional discs are used, powered by mains or batteries, for example, DeWalt.
The circular saw perfectly performs finishing and repair work, any household needs.
They can do all the difficult manipulations, for example, crooked lines of cuts, the execution of which should be done with a jigsaw to cut out details of a complicated configuration.
The main advantages of saw blades with discs are that they have high speed, good cutting line and efficient performance.
An example from practice: when creating a particular model of furniture, it is very important to strictly maintain the dimensions of the fiberboard canvases, excluding distortions and observing the careful intersection of elements.
high-quality saw discs are worth buying only from trusted organizations.
Tips and general Properties
Performing professional and household tasks is possible with a saw with discs, and using other devices.They are classified depending on the types of power sources – they are classified as mains and battery.
The power consumption range is from 550 to 2200 watts, while the saw blades themselves are divided into tools with high power (over 1200 watts), with average power (800-1200 watts) and low-power (no more than 800 watts).
The maximum permissible power is dictated by the maximum length of the saw blade, and, accordingly, how thick it is possible to cut through the material.
Plus, when the tool has high power, less time is spent on the operation.
The motor of the power tool is mounted on a support plate with a special device, as a result of which the material in the sheets can be cut at any inclined angle, while the depth from which it is cut is regulated, which is considered one of the main properties of saws.
The technical data sheet prescribes the largest depth to which an incision can be made at an inclined angle of 45 and 90 degrees, and its range is from 95 to 130 mm.
Almost all types of saw blades with discs, having a base plate, are equipped with a functioning mechanism with a stop that makes parallel cuts.
Often, the presence of a parallel stop and a plantar lining is provided by the delivery kit.
But not all types of tools have a special groove, which the guide rail needs, and with which they are threaded at all angles.
Despite the fact that the guide rails have different sizes, the length can increase if necessary if you connect several tires with connecting adapters.
Some types of tools have clamps for working on workbenches or frames.
But since many saws are equipped with ventilation holes, which are located at the bottom of the casing, at the time when the saw is turned over, the chips fall into the ventilation holes and clog them, which causes the tool to overheat.
With a key or a screwdriver, carefully strengthen the saw blade on the motor shaft.
Characteristics of high-quality equipment
If household and professional saws are of high quality, then they will certainly have a button that locks the spindle, and this makes the disc replacement operation much easier.When buying a new saw blade, the following parameters should be taken into account: the largest diameter of the landing hole and the diameter of the cutter.
If the hole of the disc that cuts is slightly larger than the diameter of the motor shaft, then it is possible to use specially designed adapter bushings.
The huge role is not only the size of the disk, but also the quality of its manufacture.
It also takes into account the number of teeth, the passing speed and the number of revolutions, as well as the angle of entry of the material (in sheets).
The presence of such characteristics will determine the quality of the thread and the required power.
The material will be cut better if the protrusion of the web for the material is 1.5-2 sizes of the height of the tooth (for the teeth to enter at an angle of 45 degrees).
In order to make it easier to take into account the exact differences in materials, certain types of saws with discs regulate the number of revolutions.
In certain types of engines, there is a soft start system, so the device does not give a jerk when starting.
In addition, many hand saws with discs have a good overheating protection system.
The pendulum casing is placed on all saws with discs, it can move back during operation, and at the end of it it returns back, which eliminates the possibility of injury.
Traditionally, each tool is equipped with a protective mechanism that triggers when it is turned on without permission.
In order for the tool to start, it is enough to press only two buttons, which is done in strict sequence.
The saw finishes working after the start button is released.
Other tools are equipped with a similar on-off system.
Safety in handling saws
To insure against injury when working with the saw, it, as already mentioned, has a protective casing and a mechanism that protects against unauthorized activation.But still, when handling a saw, you should be extremely careful and use the tool only guided by its immediate purpose.
23 November 2017
