KR20150138888A - Cermet tip having circular saw and circular saw - Google Patents
Cermet tip having circular saw and circular saw Download PDFInfo
- Publication number
- KR20150138888A KR20150138888A KR1020140065618A KR20140065618A KR20150138888A KR 20150138888 A KR20150138888 A KR 20150138888A KR 1020140065618 A KR1020140065618 A KR 1020140065618A KR 20140065618 A KR20140065618 A KR 20140065618A KR 20150138888 A KR20150138888 A KR 20150138888A
- Authority
- KR
- South Korea
- Prior art keywords
- saw blade
- end portion
- circular saw
- cemented carbide
- welding
- Prior art date
Links
- 239000011195 cermet Substances 0.000 title 1
- 238000003466 welding Methods 0.000 claims description 23
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 6
- 230000020169 heat generation Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 4
- 230000001965 increasing effect Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
Images
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
- B23D61/02—Circular saw blades
-
- 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
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P5/00—Setting gems or the like on metal parts, e.g. diamonds on tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B33/00—Sawing tools for saw mills, sawing machines, or sawing devices
- B27B33/02—Structural design of saw blades or saw teeth
- B27B33/12—Saw blades having inserted or exchangeably arranged bits or toothed segments
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Earth Drilling (AREA)
Abstract
The present invention relates to a cemented carbide tip provided in a circular saw blade and a circular saw blade having the same, and more particularly, to a cemented carbide cutting tool having a cemented carbide tip that is welded to a body of a circular saw blade, A cemented carbide tip provided on a circular saw blade for reducing the wear of the tip by reducing the heat generation rate so that the chip can be easily discharged during the cutting of the pipe or the like, To a circular saw blade.
Description
The present invention relates to a cemented carbide tip provided in a circular saw blade and a circular saw blade having the same, and more particularly, to a cemented carbide cutting tool having a cemented carbide tip that is welded to a body of a circular saw blade, A cemented carbide tip provided on a circular saw blade for reducing the wear of the tip by reducing the heat generation rate so that the chip can be easily discharged during the cutting of the pipe or the like, To a circular saw blade.
Generally, a cemented carbide is a metal mixed with a powder of a very hard compound such as tungsten carbide or titanium and a metal powder such as cobalt, compression-molded at a high pressure and then heated and sintered at a high temperature. Due to the nature of the material, hardness and wear resistance , And most of them are mainly used for a tip which is to be cut by rotation.
In the conventional circular saw blade, the number of saw blades is 60z, 72z, and 82z, the pitch is wider and the welding area of the tip is relatively wide. In the case of a circular saw blade for cutting pipes and the like, 200z or the like. In order to do this, it is naturally necessary to use a tip smaller than the conventional one, but the welding strength is reduced as the area becomes smaller.
Korean Utility Model Laid-Open Publication No. 20-1989-6501 discloses a circular saw blade to which a cemented carbide team forming a chip discharge induction angle is attached.
However, such a conventional circular saw blade has a problem that it is difficult to expect the effect of extending the service life of the circular saw blade because the welding area between the cemented carbide tip and the body of the circular saw blade is extremely limited.
SUMMARY OF THE INVENTION It is an object of the present invention to provide a circular saw blade having a circular shape for increasing the welding area of the cemented carbide tip to be welded to the body of the circular saw blade, A cemented carbide tip provided on a saw blade and a circular saw blade having the same.
Another object of the present invention is to provide a cemented carbide tip equipped on a circular saw blade for facilitating discharge of a chip when cutting an article such as a pipe to reduce wear of the tip by reducing the heat generation rate to improve service life. Thereby providing a circular saw blade.
The problems to be solved by the present invention are not limited to those mentioned above, and other solutions not mentioned can be clearly understood by those skilled in the art from the following description.
According to an aspect of the present invention, there is provided a circular saw blade having a circular saw blade body and a plurality of saw blades radially formed on an outer circumferential surface of the saw blade body, An end portion which is fixed to the saw blade by welding, another end portion which is opposite to the one end portion, an end portion which is intersected with the both end portions and is fixed to the outer circumferential surface of the saw body by welding, Wherein the one end of the cemented carbide tip is provided at one end of the circular saw blade and the other end of the cemented carbide tip is provided at both ends of the cemented carbide tip, At least one first mounting space is formed to be embedded in the circular saw blade. to provide.
The one end of the saw blade body is formed with at least one second mounting space recessed toward the other end so as to increase the application area of welding when welding with the saw blade body.
The third mounting space may be formed between the saw blade and the edge portion where the saw blade is in contact with the edge of the saw blade, which is rounded or chamfered.
The other end portion according to the present invention includes: a first other end portion extending from the one end portion toward the other end portion; A second other end section extending from the other end toward the one end; And a third rudder section connecting the first and second rudder sections, wherein the second and third rudimentary sections have curved surfaces in which the distance from the first rudder section to the other end section decreases from the first rudder section to the other end section, Thereby forming a first chip discharge groove.
According to the present invention, the front and rear surfaces are each provided with a second chip discharge groove recessed in a direction opposite to each other.
The second chip discharge groove according to the present invention is formed so as to extend in the direction of the one end from an edge portion where one end portion and the other end portion thereof are in contact with each other so that the one end portion and the other end portion are in communication with each other.
The front and rear surfaces according to the present invention each have a curved surface around the second chip discharge groove.
The present invention provides a circular saw blade including a cemented carbide tip provided in a circular saw blade according to the present invention.
According to the present invention, the welding area of the cemented carbide tip welded to the body of the circular saw blade is widened, so that the effect of extending the service life by increasing the welding strength can be expected.
In addition, since the chip can be easily discharged when the product is cut, the wear of the tip can be reduced by reducing the heat generation rate, thereby extending the service life.
The effects of the present invention are not limited to those mentioned above, and other solutions not mentioned may be clearly understood by those skilled in the art from the following description.
1 is a perspective view of a cemented carbide tip provided on a circular saw blade according to the present invention.
2 and 3 are a front view and a plan view of a cemented carbide tip of a circular saw blade according to the present invention.
4 is a state diagram illustrating a cemented carbide tip of a circular saw blade according to the present invention.
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
1 to 4, a cemented carbide tip (hereinafter, referred to as "cemented carbide tip") 1 provided in a circular saw blade according to the present invention includes a circular
The plurality of saw blades 120 are respectively formed to extend from the outer circumferential surface of the
The
The
The
The cemented
Generally, the number of saw blades used in the circular saw blade is 60z, 72z, and 80z, and the pitch of the saw blade is wider, so that the welding area of the tip is also relatively wide.
However, in order to cut pipe or other articles, the number of saw blades should be 120z, 200z, etc. In order to do this, it is naturally necessary to use a tip smaller than the conventional size. However, as the area becomes smaller, No improvement can be expected.
The cemented carbide tip (1) compensates for reduced welded area, thereby enhancing the weld strength and prolonging the service life.
At least one
The one
The cemented
When the one
As a result, the cemented
The
The second and third end faces 22 and 23 have a curved shape in which a distance from the
That is, the
The front and
The second
The front and
It can be understood that the chip can be easily discharged when an article such as a pipe (not shown) is cut.
That is, the first
Therefore, the
Although the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
1: cemented carbide tip 10: one end
11: first mounting space 20: other end
21: first ridge section 22: second ridge section
23: third other end surface 24: first chip discharge groove
30: one end part 31: second mounting space
40: the other end 50: front
60: rear surface 70: third mounting space
80: second chip discharge groove 100: circular saw blade
110: saw blade body 120: saw blade
121: plane 122:
Claims (8)
Wherein one end of the cemented carbide tip is formed with at least one first mounting space recessed in the direction of the other end so as to increase an application area of the welding when welding with the saw blade.
In the one end portion,
Wherein at least one second mounting space recessed in the direction of the other end is formed to increase the application area of welding when welding the saw blade body.
And a third mounting space is formed between the saw blade and an edge portion where the saw blade is in contact with the edge of the cemented carbide tip when the edge of the cage is rounded or chamfered.
The other-
A first other end portion extending from the one end portion toward the other end portion;
A second other end section extending from the other end toward the one end; And
And a third other end surface connecting the first and second end surfaces,
The second and third end faces are,
Wherein a first chip discharge groove is formed in a curved surface that reduces a distance from the one end of the cantilever to the other end of the cantilever tip.
On the front and rear surfaces,
And a second chip discharge groove recessed in a direction opposite to the first chip discharge groove is formed.
Wherein the second chip discharge groove
Wherein the one end of the cemented carbide tip extends in a direction from the one end of the one end to the other end so that the one end and the other end are in contact with each other.
The above-
Wherein each of the first and second chip discharge grooves has a curved surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020140065618A KR20150138888A (en) | 2014-05-30 | 2014-05-30 | Cermet tip having circular saw and circular saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020140065618A KR20150138888A (en) | 2014-05-30 | 2014-05-30 | Cermet tip having circular saw and circular saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20150138888A true KR20150138888A (en) | 2015-12-11 |
Family
ID=55020151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020140065618A KR20150138888A (en) | 2014-05-30 | 2014-05-30 | Cermet tip having circular saw and circular saw |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20150138888A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20210146541A (en) | 2020-05-27 | 2021-12-06 | 한국야금 주식회사 | Sintered body for a tip saw |
-
2014
- 2014-05-30 KR KR1020140065618A patent/KR20150138888A/en not_active Application Discontinuation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20210146541A (en) | 2020-05-27 | 2021-12-06 | 한국야금 주식회사 | Sintered body for a tip saw |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9278396B2 (en) | Double-sided cutting insert for milling | |
| JP5447129B2 (en) | Drill with coolant hole | |
| JP5799875B2 (en) | Ball end mill | |
| CN105792968B (en) | Drill bit blade and indexable insert blade type drill bit | |
| JP6262850B2 (en) | Cutting insert, cutting tool, and manufacturing method of cut workpiece | |
| WO2016140333A1 (en) | Cutting insert and cutting edge-replaceable rotary cutting tool | |
| WO2014069265A1 (en) | End mill with coolant holes | |
| JP5553128B2 (en) | Cutting insert and cutting edge exchangeable end mill | |
| JP2011500350A (en) | Cutting tool | |
| US20200108449A1 (en) | Cutting head having tip portion with radially extending front cutting edges provided with both negative and positive rake angles, and rotary cutting tool | |
| JP2008264964A (en) | Rotary cutting tool | |
| WO2014084254A1 (en) | Cutting insert, cutting tool, and cut workpiece manufacturing method | |
| JPWO2019044343A1 (en) | Cutting insert, blade tip replaceable ball end mill, and end mill body of blade tip replaceable ball end mill | |
| JP2012035359A (en) | Drill | |
| JP6848176B2 (en) | Drill | |
| JP5958614B2 (en) | Ball end mill | |
| CN104439479A (en) | Inter-cooling type blade and inter-cooling type cutter thereof | |
| CN104384574A (en) | Repeatedly-detachable rotary tool | |
| JP2007007736A (en) | Throwaway chip | |
| KR20150138888A (en) | Cermet tip having circular saw and circular saw | |
| JP5811919B2 (en) | Drill with coolant hole | |
| CN104249164B (en) | Metal cutting turning insert and turning cutting tool | |
| CN106001648A (en) | Turning/milling blade for processing high-hardness steel special-shaped piece | |
| CN204997124U (en) | R type cydariform milling cutter | |
| CN107350530B (en) | Indexable insert for large feed milling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E601 | Decision to refuse application |