Listi za krožne žage so zaradi svoje vsestranskosti nujno orodje za številne projekte.
Različni tipi listov za krožne žage so zasnovani za različne materiale in naloge, kot je les, plastika, kovina, beton, in zidarstvo. Izbira pravega lista krožne žage za vaš projekt je pomembna, saj lahko pravi list privede do boljše učinkovitosti in zagotovi vašo varnost med delom.
Although saw blades have the same exterior, they are designed for specific tools and applications. Saw blades have different functions on different devices and their applications will vary.
This article will expand on these two elements and briefly describe the applicable scenarios of three types of saw blades.
Premer
The diameter of the circular saw blade is a very important deciding factor because for every mechanical device and handheld power tool, only a certain size can be loaded on the device.
For table saws, a blade with a diameter of 254 mm is generally accepted. For hand circular saws, typically 165mm or 190mm; for miter and radial arm saws, typically 254mm or 304mm, and for sliding table saws, blades with a diameter of 315mm or 350mm or larger are acceptable . These tools also work with smaller blades, but don’t try to use larger blades if you set the diameter range. It may be difficult to find replacement blades in this size.
Zato, before purchasing a new saw blade, you should make sure it fits your machine. Choose the correct size so that your circular saw blade works perfectly with your machine.
Izrezljaj
The kerf refers to the thickness of the groove that the circular saw blade passes through. Dodatno, it can be used to define the thickness of the blade teeth themselves, or at least the thickness at the widest point on the blade. Cut thickness affects cutting width, cost, power consumption and the rate of wood loss during processing. The cut is usually wider than the blade base.
If you look at the construction of a carbide circular saw blade, you will see that the blade has a small carbide tip welded to it, which makes the cutting edge thicker than the blade itself.
For high-speed steel saw blades, although the cutting edge is still thicker than the blade itself, the cutting edge and saw blade are one.
The thicker the blade, the less likely it is to bend and the kerf will be wider. For this reason, heavy-duty stationary table saws typically use 3.2mm blades. This blade can easily cut through high-density hardwoods due to the power provided by the blade.
Table saws, zajeralne žage, and radial arm saws rated below 1.1KW are usually equipped with thinner blades (approximately 2.4mm) for better performance power.
Portable circular saws, especially lithium-ion handheld saws, use thinner blades. It’s hard to find 3.2mm blades for portable saws. These ultra-thin blades put less stress on the saw and do not bend significantly due to their smaller diameter.
So the next time when you choose a saw blade, you need to consider both of the above factors and choose the right blade for your saw. Naslednji, we will briefly introduce the three common saw blades used in woodworking.
Ripping Blades
Rezila za raztrganje ali rezila za raztrganje so zasnovana za izdelavo ravnih rezil, dolge reze vzdolž vzorca lesa. Tipično, imajo manj zob kot prečna rezila (približno 16 do 40) in imajo globoke utore za učinkovito odstranjevanje lesnih sekancev in žagovine. Zobje trgalnega rezila imajo plitek nagnjeni kot, ki preprečuje, da bi rezilo med delovanjem zgrabilo obdelovanec. Rezila za rezanje trganja zahtevajo večje hitrosti rezanja, kar ima za posledico grobe ureznine. Uporaba trgalnega rezila za prečno rezanje ni priporočljiva, saj lahko povzroči slabo kakovost reza in povzroči povratni udarec.
Crosscutting Blades
V nasprotju s trgajočimi rezili, prečna rezila ali prečna rezila so odlična za rezanje proti strukturi lesa. Imajo več zob (približno 60 do 80) in plitvejših požiralnikov, zaradi česar so idealni za rezanje masivnega lesa, na primer trdega in mehkega lesa. Prečna rezila so izjemno čista, gladki rezi z manj trganja. Imajo strmejši nagibni kot za bolj agresivno delovanje, bolj gladko rezanje pri nizkih hitrostih. tudi, za trganje ne uporabljajte prečnega rezila.
Combination/General-purpose Blades
Kombinirana rezila se včasih imenujejo univerzalna rezila. Zasnovani so za trganje in prečenje hkrati. S kombiniranim rezilom, pri spreminjanju smeri rezanja nam ni treba zamenjati rezil. Kombinirano rezilo združuje tudi ploščate in izmenične zgornje vijačne zobe, da se zagotovi učinkovitost. Ploščati zobje režejo tako hitro kot raztrganina, medtem ko izmenični zgornji poševni zobje proizvajajo čisto, natančni rezi kot križni rez. Vendar, za bolj specifične naloge, priporočamo namenska rezila za trganje ali prečno rezanje.
