Pri razrezu ali obdelavi lesa, usmerjevalniki imajo največ vrst. Te različne vrste rezkalnih nastavkov za obdelavo lesa imajo širok spekter uporabe, kot je graviranje, rezanje, rezanje, rezkanje, rezanje, in vrtanje.
S toliko svedri na trgu, izbira pravega svedra za vaše delo je lahko frustrirajoča in zmedena, in pri izbiri je treba upoštevati preveč dejavnikov. Kaj je torej glavna osnova za izbiro rezkalnika? Tukaj smo zbrali 5 pomembna načela za izbiro rezkalnika za obdelavo lesa, kot sledi.
Preden se odločite, kakšno vrsto rezkalnika izbrati, morate imeti nekaj osnovnega znanja o njih.
Za razvrstitev rezkalnikov, obstajajo štiri glavne metode razvrščanja:
Prvi je integralni tip, which means that the cutter body and the blade edge are made as a whole.
The second is the integral welded blade, the blade is made of carbide or other wear-resistant materials and welded to the cutter body.
The third is the row tooth type, the cutter teeth are fixed to the cutter body by mechanical clamping, and the replaceable cutter teeth can be integral materials or welded materials.
The last type is the indexable type, and the indexable structure is widely used in face milling cutters, end mills, and three-edge milling cutters.
Regardless of the shape and type of milling cutters, the most important thing is their material.
In terms of materials, router bits are of four types: hitrorezno jeklo (HSS), cemented carbide (TCT), trdni karbid, and polycrystalline diamond (PCD).
High-speed steel (HSS)
Due to their relatively short service life compared to cemented carbide, HSS router bits need to be frequently sharpened with diamond grinders. Vendar, HSS is heat-resistant and not prone to breakage. Router bits made of HSS are ideal for cutting softwood and light plastics.
volframov karbid (TCT)
The cutting edges of TCT router bits are made of tungsten carbide, ki ima odlično ostrino in vzdržljivost. Zato, they do not require regular sharpening. Although TCT router bits are slightly more expensive, imajo nizke stroške vzdrževanja in lahko povečajo produktivnost.
Trden karbid
CNC milling cutters made of solid carbide are more expensive than HSS and TCT. They are more wear-resistant and have higher hardness. Solid carbide milling cutters have better performance on harder materials such as hardwood, trde plastike, in mehke kovine. Vendar, so krhki in pogosteje se zlomijo med delovanjem, zato je pri njihovi uporabi potrebna posebna previdnost.
Polikristalni diamant (PCD)
PCD rezkarji so izdelani iz diamantnih delcev, pomešanih v karbidno podlago, da dosežejo izjemno trdoto in odpornost proti obrabi.. CNC rezkarji iz PCD ali PCBN (polikristalni kubični borov nitrid) so idealne za rezanje trdih kovin.
Rezkalniki se pogosto uporabljajo pri obdelavi lesa. Za osebno uporabo ali za strojno obdelavo, rezkalniki so učinkovito orodje. Pri izbiri rezkarja, upoštevati morate naslednjih pet pomembnih dejavnikov.
1- Material, ki ga je treba rezati z rezkarjem
Ne glede na to, katero orodje boste uporabili, prva stvar, ki jo moramo upoštevati, je material, ki ga bomo obdelovali. Rezalni material določa material orodja.
Wood cutting objects can be mainly divided into solid wood and wood composite materials. The cutting performance of the drill bit will show differences due to the structure of the cutting material and the proportion and properties of the additives, so the cutting material is an important consideration.
2-Processing surface quality requirements
The quality of the wood product processing surface is related to the geometric parameters and shape and position accuracy of the milling cutter. The corrugation of the milling cutter surface is closely related to the feed rate of each cutter head of the milling cutter. Zato, methods such as adjusting the number of teeth and the milling cutter diameter according to the quality requirements of the processing surface can improve the processing surface quality.
3-Cutting direction
One of the biggest characteristics of wood is anisotropy, especially solid wood, because it grows naturally and consists of wood fibers arranged in a certain way.
When cutting solid wood, wood cutting is divided into longitudinal, transverse, and end according to the direction of the blade relative to the wood fiber. It is also necessary to consider the choice of drill bit according to the direction of cutting.
4-Tool rotation direction and feed direction
We also need to select the appropriate tool blade inclination direction according to the tool axis rotation direction and the wood workpiece feed direction.
5-Workpiece stability
Workpiece stability refers to the smooth feed and no jumping of the wood workpiece during the cutting process. To enhance the stability of the workpiece, it is necessary to select the expected matching parts according to the specific machine model.
Na primer, for vertically mounted profile milling cutters, large diameter milling cutters are conducive to improving the stability of the processed workpiece.
After this brief article, I believe you now know what to consider when choosing a router bit.
