All about longitudinal saws

The saw is considered the most efficient to work if it is equipped with a saw disk. From the correctness of the choice of this circle, the quality of the sawdust itself, the speed of operation, as well as the share of discarded elements and waste disposal. Depending on the features of this device, a longitudinal and transverse type of sawing is distinguished.

Types of sawing

The saw is a cutting acute tool with a large number of blades that are capable of working in a propylene closed type. Propyl is a pretty narrow slot that appears in the wood when cutting into chips with sharp teeth teeth. Usually, the sidewalls are distinguished in propyl, as well as the bottom, it is with them the blade comes into account. Depending on the angle of inclination and the location of the saw relative to the wood, several types of sawing are distinguished.

  • Longitian. In this case, the plane is located in parallel or approximately parallel to wood fibers. Such a mechanism operates sawmill frames, and still tape and circular saws used for sawing logs, as well as bars on the board, when the material is disintended in the longitudinal direction and in length and in width.
  • Transverse. Here, the saw is perpendicular to or about perpendicular to the fibers. In this case, the sawing itself is performed by manually using transverse saws and hacks, as well as on tracing machines. This method of processing wood fibers is used to cut into round billets, removal of wood defects, as well as to give lumber required quality and dimensions.
  • Mixed. In this case, the plane of the tool can be located in the range from 10 to 80 degrees relative to wood.

All about longitudinal saws

All about longitudinal saws

All about longitudinal saws

Speaking about what kind of sawing method is better, it should be noted that the transverse is considered more simplified, since there is no complex gearbox in this scheme, which is required to turn the axis by 90 degrees, the gears function much more efficiently, due to the transverse saws, the risk of outputting the motor from Building is much lower and in general the tool serves longer.

At the same time, it should be understood that some types of work cannot be made any other way except the longitudinal. That is why it is worth stopping in more detail on the basic parameters of longitudinal sawmills.

All about longitudinal saws

All about longitudinal saws

Peculiarities

Longitudinal sawmill is a cutting process that goes parallel to the natural location of wood fibers. In this case, circular discs are used in which the incisors are located with a slope, their pointed edges are effectively cut fibers, they begin to flap and form sawdust. In the process of such treatment on the surface of the wooden part, irregularities often appear, as well as mossiness and rolling – their appearance is explained by the properties of the fibers formed during the life of the tree.

The final surface profile has an impact of the expansion method, as well as the size of the divorce and shape of the teeth. Typically, the latter are sharpened as a triangle, so it is possible to work with a similar disc exclusively in one direction.

All about longitudinal saws

Saw Disc Design

For efficient longitudinal sawing, it is necessary to choose the right blades. It is noted that the greater the teeth, the easier it takes such a sawing (for comparison, when working with transverse propuls, large teeth act very rude and literally tear wood, which leads to the appearance of chips). The depressions between such teeth also necessarily need to be as deep as possible – in this case, the chips will be better. The optimal number of teeth for longitudinal cutting varies from 20 to 24 pcs.

If you need to carry out both types of sawing, it is better to give preference to a tool on circles with medium-sized teeth with a total number of 46-48 pcs.

All about longitudinal saws

All about longitudinal saws

Apply when working with longitudinal feedback, small-scale discs should not be, it is fraught with a decrease in the speed of operation, significant overheating of the device and such unpleasant consequences:

  • The saw blade begins to puncture;
  • Saw often outlines sideways from the cut line;
  • In the overheating sites, the material begins to “swell” and friction increases significantly;
  • Saw deformed and more resembles a propeller than cutting surface.

In order to reduce the likelihood of rapid overheating, small slots and holes are made in the helmet, which act as thermoperters. They are usually placed from the edge of radius.

All about longitudinal saws

All about longitudinal saws

All about longitudinal saws

On some models, they are partially filled with copper compositions, which reduces the noise level and promotes the rapid cooling of the engine. Circles for sawing are usually poured out of one metal (they got the name of monolithic) or with the inclusion of attacks of various solid alloys. Each optional has its pros and cons.

  • Monolithic, As a rule, they are quickly stupid, so they have to sharpen and correct them. However, this procedure is pretty simple and simple, so it can be performed independently at home. Usually, such discs are used both for longitudinal and transverse sawmills. The cost of such equipment is quite democratic.
  • Carwide Circles are much more expensive, at the same time, the period of their use until the very first sharpening is longer. The sharpening of this tool can be carried out only on specialized equipment. Despite this, it is such a canvases more in demand from consumers, since their cost pays off much earlier than the need arises in a blow. Carbide discs work well not only on wood, but also for such materials such as metal, laminate or pressed plates.

All about longitudinal saws

All about longitudinal saws

All about longitudinal saws

Separate attention should be paid to several electrical saw parameters for longitudinal use.

  • Radial or ending. To carry out particularly accurate works, one of the most important indicators is considered to deviate a circle from the main plane of the cut. If there is a radial or ending, it can break the clarity of the cut. The optimal allowable beating is 0.15 mm, and the highest quality models have a parameter in the range of 0.05 mm.
  • Keep in mind that longitudinal saws should not be done by discs for saws, they have a different path of movement of the canvas in a wooden part. For example, circles for pendulum tools are usually located under a negative angle – while the load on the motor decreases, and the working edges cut faster and easier. As a result, the efficiency increases, if compared with a disk circle, located under the positive corner of the teeth. If such a disk moves along the pendulum trajectory, I saw simply to crash into fibers not the most sharp sites of my teeth. All this leads to an increase in the burden on the motor, overheating and reduced performance. If the discs with the teeth are sharpened under the negative corner of the teeth for the circular plate, the wood will begin to repel, and the sawdust will be bad – in this case, the cutting is much slower.

All about longitudinal saws

All about longitudinal saws

Subtleties of choice

Silent nozzles for longitudinal sawmills are best bought in specialized stores – Unlike small outlets, here a full instruction and descriptions for users are included in the product, and sellers have the necessary knowledge and can give a detailed consultation. Be sure to learn the information placed on the disk. Usually, with the help of arrows indicate the cutting direction (across or along), as well as the maximum speed of cutting into circulation and the angle of inclination of teeth. Typically, a negative angle is indicated as NEG, and positive – POS. Before these designations, the letter is usually indicated – it shows the magnitude of degrees.

It is necessary to visually inspect the disk and make sure of it. Keep in mind that, for example, the fascinated teeth can be molded, but if the case is weak – it is not possible to correct this defect.

All about longitudinal saws

All about longitudinal saws

Be sure to learn the grinding quality. If the saw blade is good, then explicit circles from grinding will be dispersed from the center to the edges. They indicate that after stamping such a circle was mandatory calibrated, then polished and brought to the maximum efficient working condition.

If the circles are cheap, then they are usually not subject to additional refinement, the maximum spend the grinding of the whole sheet. On a badly ground surface, a liquefies with chips are sticking, which is significantly interferes with the work.

For more expensive models, the emission of inscriptions is applied by a laser, thanks to which the marking is saved throughout the entire period of use, which is very important for subsequent tool sharpening.

All about longitudinal saws

All about longitudinal saws

All about longitudinal saws

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