SE505977C2 - Tooth arrangement for metal saw blade - Google Patents
Tooth arrangement for metal saw bladeInfo
- Publication number
- SE505977C2 SE505977C2 SE9202953A SE9202953A SE505977C2 SE 505977 C2 SE505977 C2 SE 505977C2 SE 9202953 A SE9202953 A SE 9202953A SE 9202953 A SE9202953 A SE 9202953A SE 505977 C2 SE505977 C2 SE 505977C2
- Authority
- SE
- Sweden
- Prior art keywords
- edge
- tooth
- width
- teeth
- central
- Prior art date
Links
- 229910052751 metal Inorganic materials 0.000 title claims description 4
- 239000002184 metal Substances 0.000 title claims description 4
- 239000000463 material Substances 0.000 description 4
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
- B23D61/02—Circular saw blades
- B23D61/021—Types of set; Variable teeth, e.g. variable in height or gullet depth; Varying pitch; Details of gullet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
- B23D61/02—Circular saw blades
- B23D61/021—Types of set; Variable teeth, e.g. variable in height or gullet depth; Varying pitch; Details of gullet
- B23D61/0212—Varying pitch
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
- B23D61/02—Circular saw blades
- B23D61/04—Circular saw blades with inserted saw teeth, i.e. the teeth being individually inserted
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
- B23D61/02—Circular saw blades
- B23D61/04—Circular saw blades with inserted saw teeth, i.e. the teeth being individually inserted
- B23D61/06—Circular saw blades with inserted saw teeth, i.e. the teeth being individually inserted in exchangeable arrangement
- B23D61/075—Circular saw blades with inserted saw teeth, i.e. the teeth being individually inserted in exchangeable arrangement with teeth connected by deformation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Structure Of Receivers (AREA)
- Milling Processes (AREA)
Abstract
Description
15 20 25 30 35 505 977 z därigenom kan såga snabbare i massiva material och i material med tendens till bildning av långa spàn. 15 20 25 30 35 505 977 z thereby can saw faster in solid materials and in materials with a tendency to form long chips.
Uppfinningen beskrivs i anslutning till figurerna 1-4 som visar en sidovy, en vy framifrån och två utföringsformer av uppfinningen.The invention is described in connection with Figures 1-4 which show a side view, a front view and two embodiments of the invention.
Enligt uppfinningen skall sågtandens spånsida åtminstone intill de skärande delarna av eggarna vara konkav, varigenom de rännformiga spånen rullas ihop med bibehållen eller förstärkt krökning 1 längdriktningen utan att rännformigheten plattas till.According to the invention, the chip side of the sawtooth should be concave at least next to the cutting parts of the edges, whereby the gutter-shaped chips are rolled together with retained or reinforced curvature in the longitudinal direction without the gutter shape flattening.
Sägtänderna är av två typer som omväxlar med varandra längs sägbladets kant. Varannan sågtand är en hög tand (ll) där eggen består av en kort central horisontell eggdel (12) och två lutande eggdelar (13,l4). Mellan de höga tänderna finns låga tänder (21) med en lång i huvudsak horisontell eggdel (22) av väsentligt större längd än den korta centrala eggdelen (12) på de höga tänderna och intill hörnen anslutande till korta lutande eggdelar (23,24) som är väsentligt kortare än den lutande eggdelarna (13,l4) på de höga tänderna (11). vid normal användning där skillnaden i höjd mellan höga och låga tänder är större än skärdjupet per tandpar utgöres det skärande avsnittet av eggen (31) på en hög tand (11) endast av den korta centrala eggdelen (12) och de närmast denna belägna avsnitten av de lutande eggdelarna (l3,l4). På en låg tand (21) är de yttre avsnitten av eggen (32,33) skärande medan det centrala avsnittet rör sig över en av de höga tänderna (ll) skuren ränna.The saw teeth are of two types that alternate with each other along the edge of the saw blade. Every other sawtooth is a high tooth (ll) where the edge consists of a short central horizontal edge part (12) and two inclined edge parts (13, l4). Between the high teeth are low teeth (21) with a long substantially horizontal edge portion (22) of substantially greater length than the short central edge portion (12) of the high teeth and adjacent the corners connecting to short inclined edge portions (23,24) which is substantially shorter than the inclined edge portions (13, 14) on the high teeth (11). in normal use where the difference in height between high and low teeth is greater than the cutting depth per pair of teeth, the cutting section of the edge (31) of a high tooth (11) consists only of the short central edge part (12) and the adjacent sections of the inclined edge portions (l3, l4). On a low tooth (21) the outer sections of the edge (32,33) are cutting while the central section moves over one of the high teeth (II) cut groove.
I ett alternativt utförande visat i figur 4 är de låga tändernas centrala eggdel (22) svagt krökt, så att dess yttre delar (25,26) har en liten lutning, väsentligt mindre än lutningen pä de övriga lutande eggdelarna (13,l4) på de 10 15 20 25 30 35 3 505 977 höga tänderna och (23,24) på de låga tänderna. Härigenom förbättras ytterligare sidostabiliteten hos sågbladet.In an alternative embodiment shown in Figure 4, the central edge part (22) of the low teeth is slightly curved, so that its outer parts (25, 26) have a small inclination, substantially less than the inclination of the other inclined edge parts (13, 14) on the 10 15 20 25 30 35 3 505 977 high teeth and (23,24) on the low teeth. This further improves the lateral stability of the saw blade.
Spånsidan på tänderna utföres med minst en konkav delyta i anslutning till åtminstone de skärande avsnitten (31,32,33) av eggarna. De konkava delytorna behöver inte gränsa direkt mot eggarna, då det vid metallsågning ändå alltid intill eggen uppstår ett i förhållande till eggen stillastående parti av det sågade materialet, utan den konkava delytan kan företrädesvis vara skild från eggen av en smal i huvudsak plan yta (19) med bredd understigande 0,8 mm med negativ spànvinkel.The chip side of the teeth is made with at least one concave part surface adjacent to at least the cutting sections (31,32,33) of the edges. The concave part surfaces do not have to border directly on the edges, as in metal sawing a portion of the sawn material still still adjacent to the edge always arises next to the edge, but the concave part surface can preferably be separated from the edge by a narrow substantially flat surface (19 ) with a width of less than 0.8 mm with a negative rake angle.
Vid de höga tänderna (11) finns på spånsidan en konkav delyta (17) symmetrisk kring sågbladets mittplan, och med en bredd ej understigande bredden hos det skärande avsnittet (31) av eggen. Vid de låga tänderna (21) där de yttre avsnitten (32,33) år skärande finns på spånsidan en konkav delyta (27) i anslutning till hela eggen, alternativt två konkava delytor (28,29) i anslutning till var sitt skärande avsnitt (32,33) av eggen.At the high teeth (11) there is on the chip side a concave partial surface (17) symmetrical about the central plane of the saw blade, and with a width not less than the width of the cutting section (31) of the edge. At the low teeth (21) where the outer sections (32,33) are intersecting, there is on the chip side a concave partial surface (27) adjacent to the entire edge, alternatively two concave partial surfaces (28,29) adjacent to each cutting section ( 32.33) of the edge.
Sågtänder med lång horisontell egg och en konkav delyta på spånsidan är kända genom US 2.360.336, men dessa har varit avsedda för sågning av trä med hela eggen rak och skärande så att spånen har varit ursprungligen plana med snittets fulla bredd, och den konkava delytan har endast i en punkt närmat sig eggen.Saw teeth with a long horizontal edge and a concave part surface on the chip side are known from US 2,360,336, but these have been intended for sawing wood with the entire edge straight and cutting so that the chips have been originally flat with the full width of the cut, and the concave part surface has only at one point approached the edge.
Metallsàgar med tänder enligt uppfinningen kan utföras med tandspetsar och eggar i samma material som ságbladets bärdel, eller i hårdare material, exempelvis hårdmetall.Metal saws with teeth according to the invention can be made with tooth tips and edges in the same material as the saw part of the saw blade, or in harder material, for example cemented carbide.
Hârdmetallspetsar kan vara fåstade till bärdelen genom lödning som i US 4.784.033 eller som visas i figur 4 genom mekanisk klämning som i US 174.216 och US 2.360.336, och kan företrädesvis vara belagda med friktionsminskande skikt av exempelvis titannitrid eller titankarbid.Carbide tips may be attached to the support member by soldering as in US 4,784,033 or as shown in Figure 4 by mechanical clamping as in US 174,216 and US 2,360,336, and may preferably be coated with friction reducing layers of for example titanium nitride or titanium carbide.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9202953A SE505977C2 (en) | 1992-10-08 | 1992-10-08 | Tooth arrangement for metal saw blade |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9202953A SE505977C2 (en) | 1992-10-08 | 1992-10-08 | Tooth arrangement for metal saw blade |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9202953D0 SE9202953D0 (en) | 1992-10-08 |
SE9202953L SE9202953L (en) | 1994-04-09 |
SE505977C2 true SE505977C2 (en) | 1997-10-27 |
Family
ID=20387423
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9202953A SE505977C2 (en) | 1992-10-08 | 1992-10-08 | Tooth arrangement for metal saw blade |
Country Status (1)
Country | Link |
---|---|
SE (1) | SE505977C2 (en) |
-
1992
- 1992-10-08 SE SE9202953A patent/SE505977C2/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
SE9202953D0 (en) | 1992-10-08 |
SE9202953L (en) | 1994-04-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |