JPH078452B2 - Round saw with carbide blade and its manufacturing method - Google Patents
Round saw with carbide blade and its manufacturing methodInfo
- Publication number
- JPH078452B2 JPH078452B2 JP4095091A JP4095091A JPH078452B2 JP H078452 B2 JPH078452 B2 JP H078452B2 JP 4095091 A JP4095091 A JP 4095091A JP 4095091 A JP4095091 A JP 4095091A JP H078452 B2 JPH078452 B2 JP H078452B2
- Authority
- JP
- Japan
- Prior art keywords
- base metal
- blade
- ring
- hard
- circular saw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 239000010953 base metal Substances 0.000 claims description 99
- 239000011248 coating agent Substances 0.000 claims description 56
- 238000000576 coating method Methods 0.000 claims description 56
- 230000002093 peripheral effect Effects 0.000 claims description 55
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 238000005240 physical vapour deposition Methods 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 238000005219 brazing Methods 0.000 description 11
- 238000005520 cutting process Methods 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 238000005496 tempering Methods 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- 238000007740 vapor deposition Methods 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- XOUPWBJVJFQSLK-UHFFFAOYSA-J titanium(4+);tetranitrite Chemical compound [Ti+4].[O-]N=O.[O-]N=O.[O-]N=O.[O-]N=O XOUPWBJVJFQSLK-UHFFFAOYSA-J 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
- B27B5/29—Details; Component parts; Accessories
- B27B5/30—Details; Component parts; Accessories for mounting or securing saw blades or saw spindles
- B27B5/32—Devices for securing circular saw blades to the saw spindle
-
- 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
- B23D61/04—Circular saw blades with inserted saw teeth, i.e. the teeth being individually inserted
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、木材，金属等の切断．
溝切を行う為の丸ノコ及びその製法に係わり更に詳しく
は、硬質被膜がコーティングされた超硬刃付丸ノコであ
って硬質被膜のコーティングコストを低減できる超硬刃
付丸ノコ及びその製法に関する。The present invention relates to the cutting of wood, metal, etc.
Relating to a circular saw for grooving and a manufacturing method thereof, more specifically, a circular saw with a super hard blade coated with a hard coating and capable of reducing the coating cost of the hard coating, and a manufacturing method thereof. .
【０００２】[0002]
【従来の技術】周知の通り、木材．金属等の切断、溝切
を行う為に丸ノコが広く用いられている。上記丸ノコ
は、以前に於ては、鉄系金属より成る円形の台金の周辺
部分に多数の刃を形成しただけのものであったが、周知
の通りその性能の向上や長寿命化を図る為に、円形の台
金の周辺部分に多数の刃取付部を形成し、それら刃取付
部に炭化タングステン−コバルト系等の超硬合金より成
る超硬刃をろう付したものが用いられる様になった。As is well known, wood. Round saws are widely used for cutting metal and cutting grooves. Previously, the circular saw had only a large number of blades formed on the peripheral portion of a circular base metal made of iron-based metal, but as is well known, it is necessary to improve its performance and extend its life. In order to achieve this, a large number of blade mounting parts are formed in the peripheral part of the circular base metal, and a brazing tool made of cemented carbide such as tungsten carbide-cobalt system is brazed to these blade mounting parts. Became.
【０００３】上記超硬刃をろう付した丸ノコは超硬刃を
ろう付していることにより、切断性が向上すると共に耐
摩耗性が向上したものの、より長寿命化が求められるよ
うになったThe circular saw to which the above-mentioned cemented carbide blade is brazed has improved cuttability and abrasion resistance due to brazing of the cemented carbide blade, but longer life is required. Was
【０００４】そこで超硬刃を含む台金の周辺部分にチタ
ンナイトライト，アルミナ，シリコンカーバイト等の硬
質被膜のコーティングを行う様になった。上記硬質被膜
のコーティングにより、超硬刃の耐摩耗性がさらに向上
し、長寿命化を図ることができる様になった。Therefore, a hard coating such as titanium nitrite, alumina or silicon carbide has been applied to the periphery of the base metal including the carbide blade. By coating with the above-mentioned hard coating, the wear resistance of the cemented carbide blade is further improved and the life can be extended.
【０００５】この場合上記硬質被膜のコーティングは、
処理温度が摂氏３００度〜６００度程度である物理的蒸
着（ＰＶＤ）法が有効とされる。これは処理温度が摂氏
１０００度程度である科学的蒸着（ＣＶＤ）法よりも寸
法精度の低下が少なく変形も生じにくいからであり、更
に処理温度が摂氏３００度〜６００度であるので刃取付
部と超硬刃との間のろう付ひずみを焼きもどし作用によ
って低減でき、耐チッピング性をもより向上させること
ができるようになった。In this case, the coating of the hard coating is
A physical vapor deposition (PVD) method in which the processing temperature is about 300 to 600 degrees Celsius is effective. This is because the dimensional accuracy is less deteriorated and the deformation is less likely to occur than the scientific vapor deposition (CVD) method in which the processing temperature is about 1000 degrees Celsius, and further, the processing temperature is 300 to 600 degrees Celsius, so the blade mounting portion is The brazing strain between and the carbide blade can be reduced by the tempering action, and the chipping resistance can be further improved.
【０００６】[0006]
【発明が解決しょうとする課題】上記従来の技術の超硬
刃付丸ノコは超硬刃を含む台金の周辺部分に硬質被膜を
コーティングして成るので、超硬刃の耐摩耗性，耐チッ
ピング性が向上し、長寿命化を図ることができるが、そ
の製造方法を見てみるとプレス機で打ち抜く等して刃取
付部を周辺部分に有する円形の台金を形成した後研摩
し、刃取付部に超硬刃をろう付し、次いで超硬刃を研磨
し、このように一体化の後上記超硬刃と台金の周辺部分
に硬質被膜をコーティングするものである。The above-mentioned conventional circular saw with a super hard blade is formed by coating a hard coating on the peripheral portion of the base metal including the super hard blade. The chipping property can be improved and the life can be extended, but looking at the manufacturing method, punching with a press machine etc. to form a circular base metal having a blade attachment part in the peripheral part, then polishing, A cemented carbide blade is brazed to the blade mounting portion, then the cemented carbide blade is polished, and after the integration in this way, a hard coating is coated on the peripheral portion of the cemented carbide blade and the base metal.
【０００７】従って硬質被膜をコーティングする際には
丸ノコ全体を蒸着槽の中へ入れる必要があり、大きな蒸
着槽を有する装置が必要となり、また一度に処理できる
数に限りがあると共に硬質被膜をコーティングをしなく
て良い台金の中心領域まで処理してしまうので効率が悪
く、よって硬質被膜のコーティングがコスト高になって
しまうものであった。Therefore, when coating a hard coating, it is necessary to put the whole circular saw into the vapor deposition tank, a device having a large vapor deposition tank is required, and the number of pieces that can be processed at one time is limited and the hard coating can be formed. Since the central region of the base metal, which does not need to be coated, is processed, the efficiency is poor, and thus the cost of the hard coating is high.
【０００８】更に、上記台金の中心領域まで処理されて
しまうことに伴って台金の中央領域が焼きもどしされて
しまい、台金の中央領域に本来要求されている腰の強さ
が低下してしまい、丸ノコとしての性能を損う恐れが生
じていた。Further, as the central region of the base metal is processed, the central region of the base metal is tempered and the waist strength originally required for the central region of the base metal is reduced. There is a risk that the performance as a circular saw will be impaired.
【０００９】[0009]
【発明の目的】よって本発明の目的とする所は上述の如
き従来の技術の有する問題点を解決するものであって、
超硬刃付丸ノコのの超硬刃を含む台金の周辺部分への硬
質被膜のコーティングが効率良く行え、よって硬質被膜
のコーティングが低コストとなり、しかも、台金の中央
領域の腰の強さが低下することがなくよって丸ノコの性
能が損われることがない超硬刃付丸ノコ及びその製法を
提供することにある。SUMMARY OF THE INVENTION Therefore, the object of the present invention is to solve the problems of the prior art as described above.
The hard coating can be efficiently applied to the peripheral portion of the base metal including the carbide blade of the circular saw with a super hard blade, which results in a low cost of the hard coating and the firmness of the central area of the base metal. It is an object of the present invention to provide a circular saw with a super hard blade and a method for producing the circular saw, in which the performance of the circular saw is not impaired because the circularity does not decrease.
【００１０】[0010]
【課題を解決するための手段】上記目的を達成する為に
本発明は次の技術的手段を有する。即ち、実施例に対応
する添付図面に使用した符号を用いて説明すると、鉄系
金属より成る円形の台金の周辺部分に多数形成された刃
取付部各々に超硬刃をろう付して成り、上記超硬刃を含
む台金の周辺部分に硬質被膜をコーティングして成る超
硬刃付丸ノコに於て：上記台金を中心台金１と刃取付部
３に超硬刃４が取付けられたリング状の周辺台金２とに
分割した状態で上記リング状の周辺台金２に硬質被膜５
をコーティングし、その後に中心台金１とリング状の周
辺台金２を組付けたことを特徴とする超硬刃付丸ノコで
ある。In order to achieve the above object, the present invention has the following technical means. That is, to explain with reference to the reference numerals used in the accompanying drawings corresponding to the embodiment, it is formed by brazing a cemented carbide blade to each of a plurality of blade mounting portions formed in the peripheral portion of a circular base metal made of iron-based metal. In a circular saw with a super hard blade formed by coating a hard coating on the periphery of the base metal including the super hard blade: the base metal 1 and the super hard blade 4 are attached to the blade mounting portion 3 The ring-shaped peripheral base metal 2 is divided into the ring-shaped peripheral base metal 2 and the hard coating 5
It is a circular saw with a super hard blade, characterized in that the center base metal 1 and the ring-shaped peripheral base metal 2 are assembled after that.
【００１１】そしてその製造は鉄系金属より成る円形の
台金の周辺部分に刃取付部を形成し、この台金を研磨し
た後、上記刃取付部に超硬刃をろう付し、次いで超硬刃
を研磨し、この後上記超硬刃と上記台金の周辺部分に硬
質被膜をコーティングする超硬刃付丸ノコの製法に於
て：上記台金を中心台金１と刃取付部３が形成されたリ
ング状の周辺台金２に分割し、これらを研磨した後、上
記リング状の周辺台金２の刃取付部３各々に超硬刃４を
ろう付し、次いで超硬刃４を研磨し、この後上記リング
状の周辺台金２に硬質被膜５をコーティングし、しかる
後に中心台金１とリング状の周辺台金２を組付けること
を特徴とする超硬刃付丸ノコの製法である。In the manufacturing, a blade mounting portion is formed on the peripheral portion of a circular base metal made of iron-based metal, the base metal is polished, and then a carbide blade is brazed to the blade mounting portion, and then a super-hard blade is used. In a method of manufacturing a circular saw with a super hard blade, in which a hard blade is polished, and then a hard coating is applied to a peripheral portion of the super hard blade and the base metal: the base metal is a central base metal 1 and a blade mounting portion 3 It is divided into ring-shaped peripheral base metal 2 in which is formed, and after polishing these, a carbide blade 4 is brazed to each blade mounting portion 3 of the ring-shaped peripheral base metal 2 and then the carbide blade 4 A circular saw with a super hard blade, which is characterized in that the ring-shaped peripheral base metal 2 is then coated with a hard coating 5 and then the center base metal 1 and the ring-shaped peripheral base metal 2 are assembled. Is a manufacturing method.
【００１２】[0012]
【作用】本発明は上記技術的手段より成り、超硬刃４及
び超硬刃４を含む台金の周辺部分に硬質被膜５をコーテ
ィングした超硬刃付丸ノコを形成しているので、耐摩耗
性及び耐チッピング性に優れ、長寿命であると共に、台
金が中心台金１と超硬刃４が取付けられたリング状の周
辺台金２とに分割されているので、中心台金１に不要な
硬質被膜をコーティングせずに済むので中心台金１の腰
の強さの低下がなく、超硬刃付丸ノコの性能を損う心配
がないものである。更に台金の周辺部分がリング状の周
辺台金２に分割されているので、リング径の異なる多種
のリング状の周辺台金２を一度に処理でき、効率良く硬
質被膜５のコーティングが行え、そのコストを低減でき
るものである。The present invention comprises the above-mentioned technical means, and forms the circular saw with a hard blade in which the hard coating 5 is coated on the peripheral portion of the hard blade 4 and the base metal including the hard blade 4. It has excellent wear resistance and chipping resistance, has a long life, and the base metal is divided into a center base metal 1 and a ring-shaped peripheral base metal 2 to which a carbide blade 4 is attached. Since it does not need to be coated with an unnecessary hard coating, the waist strength of the central base metal 1 does not decrease, and there is no fear of impairing the performance of the circular saw with a super hard blade. Furthermore, since the peripheral portion of the base metal is divided into the ring-shaped peripheral base metal 2, various types of ring-shaped peripheral base metals 2 having different ring diameters can be treated at one time, and the hard coating 5 can be efficiently coated. The cost can be reduced.
【００１３】[0013]
【実施例】以下、本発明の実施例を添付図面に基づき詳
細に説明する。図５に示した様に、本発明の超硬刃付丸
ノコは、鉄系金属より成る円形の台金の周辺部分に多数
形成された刃取付部３各々に炭化タングステン−コバル
ト系等の超硬合金より成る超硬刃４をろう付して成り、
上記台金は中心台金１と上記刃取付部３に超硬刃４が取
付けられたリング状の周辺台金２とより成り、上記中心
台金１とリング状の周辺台金２は位置決め手段７によっ
て位置決めされ、組付けられている。Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. As shown in FIG. 5, the circular saw with a cemented carbide blade of the present invention is made of tungsten carbide-cobalt or the like in each of a plurality of blade mounting portions 3 formed in the peripheral portion of a circular base metal made of an iron-based metal. It is made by brazing a cemented carbide blade 4 made of hard alloy,
The base metal comprises a center base metal 1 and a ring-shaped peripheral base metal 2 having a carbide blade 4 mounted on the blade mounting portion 3. The center base metal 1 and the ring-shaped peripheral base metal 2 are positioning means. Positioned and assembled by 7.
【００１４】そして上記中心台金１の中央には、超硬刃
付丸ノコ使用機器への取付けの為の軸穴６が設けられて
おり、その周囲には、位置決め手段７の位置決め凸部７
ａが形成されている。そして上記リング状の周辺台金２
には、上記位置決め手段７の位置決め凹部７ｂが形成さ
れ、その表面にはチタンナイトライト．アルミナ．シリ
コンカーバイト等の硬質被膜５がコーティングされてい
るものである。At the center of the central base metal 1, there is provided a shaft hole 6 for attachment to a machine using a circular saw with a carbide blade, and around it, a positioning projection 7 of a positioning means 7 is provided.
a is formed. And the ring-shaped peripheral base metal 2
Is formed with a positioning recess 7b of the positioning means 7, and the surface thereof has a titanium nitrite. alumina. The hard coating 5 such as silicon carbide is coated.
【００１５】次に上記超硬刃付丸ノコの製法を図１〜図
５に基づき説明する。図１，図２に示した様に、中心台
金１及び刃取付部３を有するリング状の周辺台金２をプ
レス機で打抜く等によって形成する。次いで、それらを
研磨した後、図３に示した様に、リング状の周辺台金２
の刃取付部３に超硬刃４をろう付し、その後超硬刃４を
研磨する。Next, a method for manufacturing the circular saw with a super hard blade will be described with reference to FIGS. As shown in FIGS. 1 and 2, a ring-shaped peripheral base metal 2 having a center base metal 1 and a blade mounting portion 3 is formed by punching with a press machine or the like. Then, after polishing them, as shown in FIG. 3, the ring-shaped peripheral base metal 2
The cemented carbide blade 4 is brazed to the blade mounting portion 3 of, and then the cemented carbide blade 4 is polished.
【００１６】そして上記によって超硬刃４が取付けられ
たリング状の周辺台金２に硬質被膜５をコーティングす
る（図４）。上記硬質被膜５のコーティングは、物理的
蒸着（ＰＶＤ）法によって行うことにより、上記リング
状の周辺台金２の寸法精度を損うことなく行え、更にそ
の処理温度が摂氏３００度〜６００度である為、刃取付
部３と超硬刃４のろう付部分９に生じたろう付ひずみを
焼もどし作用によって低減でき、超硬刃４の耐ピッチン
グ性を向上させることができるものである。Then, the hard coating 5 is coated on the ring-shaped peripheral base metal 2 to which the cemented carbide blade 4 is attached as described above (FIG. 4). The hard coating 5 is coated by a physical vapor deposition (PVD) method without impairing the dimensional accuracy of the ring-shaped peripheral base metal 2, and the processing temperature is 300 to 600 degrees Celsius. Therefore, the brazing strain generated in the blade mounting portion 3 and the brazing portion 9 of the cemented carbide blade 4 can be reduced by the tempering action, and the pitching resistance of the cemented carbide blade 4 can be improved.
【００１７】そして硬質被膜５がコーティングされたリ
ング状の周辺台金２を中心台金１に位置決め手段７を合
わせることによって組付け、その接続部分をろう付する
ことによって超硬刃付丸ノコ（図５）が完成する。上記
によると、硬質被膜５のコーティングは、それが必要な
台金の周辺部分のみに行われ、よって中心台金１には硬
質被膜のコーティング処理が成されないので、それに伴
う焼なまし作用が生じないので、中心台金１に必要な腰
の強さを損う心配がなく超硬刃付丸ノコの性能の低下を
防止できるものである。Then, the ring-shaped peripheral base metal 2 coated with the hard coating 5 is assembled to the central base metal 1 by aligning the positioning means 7, and the connecting portion thereof is brazed to form a circular saw with a super hard blade ( Figure 5) is completed. According to the above, the coating of the hard coating 5 is performed only on the peripheral portion of the base metal where it is necessary, and therefore, the central base metal 1 is not subjected to the coating treatment of the hard coating, so that the annealing action accompanying it occurs. Since it does not exist, it is possible to prevent the deterioration of the performance of the circular saw with a carbide blade without worrying about impairing the waist strength required for the central base metal 1.
【００１８】更に図６に示した様に、リング状の周辺台
金２に硬質被膜５をコーティングする際に、リング径の
異なる多種のリング状の周辺台金２を配列することによ
って、一度に多種の処理が可能となり、硬質被膜５のコ
ーティングが効率良く行え、そのコストを低減できるも
のである。Further, as shown in FIG. 6, when coating the hard coating 5 on the ring-shaped peripheral base metal 2, by arranging various ring-shaped peripheral base metals 2 having different ring diameters at a time. Various kinds of treatments are possible, the hard coating 5 can be efficiently coated, and the cost thereof can be reduced.
【００１９】また、図示していないが、従来通りに超硬
刃付丸ノコを形成し、硬質被膜５をコーティングする前
に、ワイヤーカット等で、台金を中心台金１とリング状
の周辺台金２に分割し、硬質被膜５をリング状の周辺台
金２にコーティングした後、中心台金１とリング状の周
辺台金２を組付ける方法も考えられる。この場合には、
従来の超硬刃付丸ノコを利用できるので、より低コスト
で製作できるものである。Although not shown, a round saw with a super hard blade is formed in a conventional manner, and before the hard coating 5 is coated, the base metal is cut by wire or the like so that the base metal 1 and the ring-shaped periphery are provided. A method of dividing the base metal 2 and coating the hard coating 5 on the ring-shaped peripheral base metal 2 and then assembling the center base metal 1 and the ring-shaped peripheral base metal 2 is also considered. In this case,
Since a conventional circular saw with a carbide blade can be used, it can be manufactured at a lower cost.
【００２０】尚、本実施例に於て、中心台金１とリング
状の周辺台金の組付は、ろう付によって行われる場合を
示したが、これに限らずスポット溶接等、種々の手段を
用いることが可能であり、またその際の位置決め手段の
形状も種々のものが考えられる。In this embodiment, the center base metal 1 and the ring-shaped peripheral base metal are assembled by brazing. However, the present invention is not limited to this, and various means such as spot welding are used. Can be used, and the positioning means at that time can have various shapes.
【００２１】[0021]
【発明の効果】以上詳述した如く本発明によると次の様
な効果を奏する。即ち、請求項第１項によると台金の周
辺部分の超硬刃に硬質被膜を施し、耐摩耗性、耐チッピ
ング性に優れ、且つ長寿命であると共に、台金の中心領
域の腰の強さが十分に発揮される超硬刃付丸ノコを提供
できる。請求項第２項によると硬質被膜のコーティング
の際の処理温度が摂氏３００度〜６００度となるので刃
取付部と超硬刃のろう付部分に生ずるろう付ひずみを焼
もどし作用によって低減させることができ、よって超硬
刃の耐チッピング性をより向上させることができ、しか
も寸法精度の低下を少なくできるものである。As described above in detail, the present invention has the following effects. That is, according to claim 1, a hard coating is applied to the carbide blade in the peripheral portion of the base metal, which is excellent in wear resistance and chipping resistance, has a long life, and has a strong waist in the central region of the base metal. It is possible to provide a circular saw with a super hard blade that fully exhibits its strength. According to the second aspect of the present invention, since the treatment temperature at the time of coating the hard coating is 300 to 600 degrees Celsius, it is possible to reduce the brazing strain generated in the brazing portion of the blade mounting portion and the cemented carbide blade by the tempering action. Therefore, the chipping resistance of the cemented carbide blade can be further improved, and the reduction in dimensional accuracy can be reduced.
【００２２】そして請求項第３項によると上記請求項第
１項記載の超硬刃付丸ノコの製法を提供でき、しかも台
金が中心台金とリング状の周辺台金に分割されている
為、硬質被膜の必要なリング状の周辺台金のみにその処
理が行われ、しかもリング状であるので、リング径の異
なる多種のリング状の周辺台金を一度に処理でき、よっ
て硬質被膜のコーティングが効率良く行えることとな
り、低コストで硬質被膜のコーティングができるもので
ある。According to claim 3, a method for manufacturing the circular saw with a super hard blade according to claim 1 can be provided, and the base metal is divided into a central base metal and a ring-shaped peripheral base metal. Therefore, the processing is performed only on the ring-shaped peripheral base metal that requires a hard coating, and since it is ring-shaped, it is possible to process various ring-shaped peripheral base metals with different ring diameters at a time. The coating can be efficiently performed, and the hard coating can be coated at low cost.
【００２３】そして請求項第４項によると上記請求項第
２項による特徴を有する超硬刃付丸ノコの製法を提供で
きるものである。According to the fourth aspect, it is possible to provide a method for manufacturing a circular saw with a cemented carbide blade having the characteristics according to the second aspect.
【図１】超硬刃付丸ノコの中心台金の正面図である。FIG. 1 is a front view of a center base metal of a circular saw with a super hard blade.
【図２】超硬刃付丸ノコのリング状の周辺台金（超硬刃
取付前）の正面図である。FIG. 2 is a front view of a ring-shaped peripheral base metal (before mounting a carbide blade) of a circular saw with a carbide blade.
【図３】超硬刃付丸ノコのリング状の周辺台金（超硬刃
取付後）の正面図である。FIG. 3 is a front view of a ring-shaped peripheral base metal (after mounting a carbide blade) of a circular saw with a carbide blade.
【図４】超硬刃付丸ノコのリング状の周辺台金に硬質被
膜をコーティングした状態を示す正面図である。FIG. 4 is a front view showing a state where a hard coating is applied to a ring-shaped peripheral base metal of a circular saw with a super hard blade.
【図５】超硬刃付丸ノコを示す正面図である。FIG. 5 is a front view showing a circular saw with a super hard blade.
【図６】硬質被膜コーティング時のリング状の周辺台金
の並べ方を示す正面図である。FIG. 6 is a front view showing how to arrange ring-shaped peripheral base metals at the time of coating with a hard film.
１ 中心台金 ２ リング状の周辺台金 ３ 刃取付部 ４ 超硬刃 ５ 硬質被膜 ６ 軸穴 ７ 位置決め手段 ９ ろう付部分 1 Central base metal 2 Ring-shaped peripheral base metal 3 Blade mounting part 4 Carbide blade 5 Hard coating 6 Shaft hole 7 Positioning means 9 Brazing part
Claims (4)
に多数形成された刃取付部各々に超硬刃をろう付して成
り、上記超硬刃を含む台金の周辺部分に硬質被膜をコー
ティングして成る超硬刃付丸ノコに於て：上記台金を中
心台金１と刃取付部３に超硬刃４が取付けられてたリン
グ状の周辺台金２とに分割した状態で上記リング状の周
辺台金２に硬質被膜５をコーティングし、その後に中心
台金１とリング状の周辺台金２を組付けたことを特徴と
する超硬刃付丸ノコ。1. A circular base metal made of an iron-based metal is brazed with a cemented carbide blade on each of a plurality of blade mounting portions formed on the same side of the base metal, and the periphery of the base metal including the carbide blade is brazed. In a circular saw with a super hard blade formed by coating a hard coating: The base metal is divided into a center base metal 1 and a ring-shaped peripheral base metal 2 in which a super hard blade 4 is mounted on a blade mounting portion 3. A circular saw with a super hard blade, characterized in that the ring-shaped peripheral base metal 2 is coated with a hard coating 5 in this state, and then the center base metal 1 and the ring-shaped peripheral base metal 2 are assembled.
蒸着（ＰＶＤ）法によって行われることを特徴とする請
求項第１項記載の超硬刃付丸ノコ。2. The circular saw with a super hard blade according to claim 1, wherein the hard coating 5 is coated by a physical vapor deposition (PVD) method.
に刃取付部を形成し、この台金を研磨した後、上記刃取
付部に超硬刃をろうろう付し、次いで超硬刃を研磨し、
この後上記超硬刃と上記台金の周辺部分に硬質被膜をコ
ーティングする超硬刃付丸ノコの製法に於て；上記台金
を中心台金１と刃取付部３が形成されたリング状の周辺
台金２に分割し、これらを研磨した後、上記リング状の
周辺台金２の刃取付部３各々に超硬刃４をろう付し、次
いで超硬刃４を研磨し、この後上記リング状の周辺台金
２に硬質被膜５をコーティングし、しかる後に中心台金
１とリング状の周辺台金２を組付けることを特徴とする
超硬刃付丸ノコの製法。3. A blade mounting portion is formed on a peripheral portion of a circular base metal made of an iron-based metal, the base metal is polished, and then a cemented carbide blade is brazed to the blade mounting portion. Polish the blade,
Then, in a method of manufacturing a circular saw with a super hard blade for coating a hard coating on the peripheral portions of the super hard blade and the base metal; the base metal is a ring shape in which a center base metal 1 and a blade mounting portion 3 are formed. Of the peripheral base metal 2 of the above-mentioned ring-shaped peripheral base metal 2 is brazed to each of the blade mounting parts 3 of the ring-shaped peripheral base metal 2 and then the super hard blade 4 is ground, and thereafter, A method for manufacturing a circular saw with a super hard blade, characterized in that the ring-shaped peripheral base metal 2 is coated with a hard coating 5, and then the center base metal 1 and the ring-shaped peripheral base metal 2 are assembled.
蒸着（ＰＶＤ）法によって行われることを特徴とする請
求項第３項記載の超硬刃付丸ノコの製法。4. The method of manufacturing a circular saw with a super hard blade according to claim 3, wherein the hard coating 5 is coated by a physical vapor deposition (PVD) method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4095091A JPH078452B2 (en) | 1991-02-12 | 1991-02-12 | Round saw with carbide blade and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4095091A JPH078452B2 (en) | 1991-02-12 | 1991-02-12 | Round saw with carbide blade and its manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0538621A JPH0538621A (en) | 1993-02-19 |
| JPH078452B2 true JPH078452B2 (en) | 1995-02-01 |
Family
ID=12594783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4095091A Expired - Lifetime JPH078452B2 (en) | 1991-02-12 | 1991-02-12 | Round saw with carbide blade and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH078452B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999030862A1 (en) * | 1997-12-16 | 1999-06-24 | Kanefusa Kabushiki Kaisha | Disc-shaped tool |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6035758A (en) * | 1995-06-07 | 2000-03-14 | Taylor; Gary R. | Saw blade drive system |
| US6321627B1 (en) | 1995-06-07 | 2001-11-27 | Balance Investments Ltd. | Sawing apparatus |
| US5799558A (en) * | 1996-03-06 | 1998-09-01 | Pacific Saw And Knife Company | Arbor and circular saw with asymmetric spline having generally radial force-transmitting face |
| NZ332526A (en) * | 1996-09-13 | 2000-11-24 | Vancouver Gear Works Ltd | Saw arbor with splined mandrel and mating internally and externally splined saw blade mounting sleeve |
| JP2001246601A (en) * | 2000-03-02 | 2001-09-11 | Kanefusa Corp | Rotary cutting tool |
| JP2008229766A (en) * | 2007-03-20 | 2008-10-02 | Sumitomo Metal Ind Ltd | Cutting tool |
| CN110814423A (en) * | 2019-11-26 | 2020-02-21 | 湖南新敏雅新能源科技有限公司 | Cutting knife device with replaceable cutting edge |
-
1991
- 1991-02-12 JP JP4095091A patent/JPH078452B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999030862A1 (en) * | 1997-12-16 | 1999-06-24 | Kanefusa Kabushiki Kaisha | Disc-shaped tool |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0538621A (en) | 1993-02-19 |
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| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19950718 |