JPH0346268B2 - - Google Patents

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Publication number
JPH0346268B2
JPH0346268B2 JP60113871A JP11387185A JPH0346268B2 JP H0346268 B2 JPH0346268 B2 JP H0346268B2 JP 60113871 A JP60113871 A JP 60113871A JP 11387185 A JP11387185 A JP 11387185A JP H0346268 B2 JPH0346268 B2 JP H0346268B2
Authority
JP
Japan
Prior art keywords
layer
segment
base layer
base
base metal
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
Application number
JP60113871A
Other languages
Japanese (ja)
Other versions
JPS61270077A (en
Inventor
Takao Kawakita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
OOSAKA DIAMOND KOGYO KK
Original Assignee
OOSAKA DIAMOND KOGYO KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by OOSAKA DIAMOND KOGYO KK filed Critical OOSAKA DIAMOND KOGYO KK
Priority to JP11387185A priority Critical patent/JPS61270077A/en
Publication of JPS61270077A publication Critical patent/JPS61270077A/en
Publication of JPH0346268B2 publication Critical patent/JPH0346268B2/ja
Granted legal-status Critical Current

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Description

【発明の詳細な説明】 [産業上の利用分野] 本発明は石材、コンクリート、瓦などを切断す
る切断機に取り付ける超砥粒セグメントカツター
に係わる。
DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a superabrasive segment cutter that is attached to a cutting machine for cutting stone, concrete, tiles, etc.

[背景技術と問題点] 石材、コンクリート、瓦などを切断する切断機
に装着されるカツターは、ダイヤモンドなどの超
砥粒を含むボンド粉末焼結体を主構成部分とする
セグメントを鉄製の台金にろう付け、又は溶接に
よつて接合して作つている。
[Background technology and problems] A cutter attached to a cutting machine that cuts stones, concrete, roof tiles, etc. has a segment made of an iron base whose main component is a bonded powder sintered body containing super abrasive grains such as diamond. It is made by joining by brazing or welding.

セグメントと台金との接合性を良くするため、
普通セグメントが台金と接する部位に、超砥粒を
含まないベース層を設けている。
In order to improve the bondability between the segment and the base metal,
A base layer containing no superabrasive grains is provided at the portion where the normal segment contacts the base metal.

第8図は前述のベース層を有するセグメントの
台金への接合説明図である。図において1は鉄ま
たは鋼よりなる円板状の台金であり、2は、例え
ば鉄または鉄基金属粉末焼結体によるベース層、
3は超砥粒層である。超砥粒層3は、例えばダイ
ヤモンド、又はCBNのような超砥粒4をボンド
粉末焼結体5に含有させたものであつて、ベース
層2と超砥粒層3とは焼結時に一体化してセグメ
ントとしたものである。このように形成されたセ
グメントはベース層2の底面で台金1と溶接また
はろう付けによつて、台金1の外周に適宜数接合
される。なお図において6はカツターの固定孔、
12は切り溝である。
FIG. 8 is an explanatory view of joining the segment having the above-mentioned base layer to the base metal. In the figure, 1 is a disc-shaped base metal made of iron or steel, and 2 is a base layer made of iron or iron-based metal powder sintered body, for example.
3 is a super abrasive layer. The superabrasive grain layer 3 is a bonded powder sintered body 5 containing superabrasive grains 4 such as diamond or CBN, and the base layer 2 and the superabrasive grain layer 3 are integrally formed during sintering. It is divided into segments. An appropriate number of segments thus formed are joined to the outer periphery of the base metal 1 at the bottom surface of the base layer 2 by welding or brazing to the base metal 1. In the figure, 6 is the cutter fixing hole,
12 is a kerf.

前記ベース層2は本来セグメントの接合性を高
めるためにセグメントに設けられるものにすぎな
いもので、カツターに必要な諸機能を付与するも
のとは考えておらず、高さ寸法(t)も無駄を省
くため精々2mmであることがダイヤモンド工具業
界の通念となつている。
The base layer 2 is originally only provided on the segments to improve the bondability of the segments, and is not considered to provide various functions necessary for the cutter, and the height dimension (t) is also wasteful. It has become common knowledge in the diamond tool industry that the diameter should be at most 2 mm in order to avoid this.

なおこのようなベース層を設ける理由はさらに
述べれば、下記のとおりである。
The reason for providing such a base layer is as follows.

(1) セグメントの台金と接合する部位の曲面は台
金外周形状と等しくなければならず、セグメン
トには焼結により生ずる歪があるため、通常機
械加工により正確なR面を作るのであるが、そ
の加工面に超砥粒が存在すると、機械加工は事
実上不可能となる。
(1) The curved surface of the part of the segment that connects to the base metal must be equal to the outer circumference of the base metal, and since there is distortion in the segment due to sintering, an accurate rounded surface is usually created by machining. , the presence of superabrasive grains on the machined surface makes machining virtually impossible.

(2) ろう付けの場合、ろう付け面に超砥粒が存在
すると、その分だけろう付け面積が減るので、
超砥粒を含まない層の方が好ましい。
(2) In the case of brazing, if superabrasive grains are present on the brazing surface, the brazing area will be reduced by that amount.
A layer that does not contain superabrasive grains is preferred.

(3) 電子ビーム溶接の場合などには、セグメント
の一部が溶解し、これに隣接する部位の金属粉
末焼結体が熱的に大きな衝撃を受け、これによ
る脆化組織が生成するのが常であるので、この
ような熱衝撃に特に耐えるような特別の材料層
を設ける必要がある、こと等である。
(3) In the case of electron beam welding, a part of the segment melts, and the metal powder sintered body in the adjacent area receives a large thermal shock, resulting in the formation of a brittle structure. As is often the case, it may be necessary to provide a special layer of material that is particularly resistant to such thermal shocks.

[発明の目的] 以上説明したように、従来のベース層を有する
2層構造のセグメントの接合したカツターでは、
ベース層は台金に対するセグメントの接合目的に
しか役立つていないが、このベース層が必要であ
るからには、ベース層の高さを拡げ、セグメント
そのものに、また接合される台金とともに、種々
の機能をもたせ、また好ましいデザインをもたせ
るようにすることを目的とするものである。
[Object of the Invention] As explained above, in the conventional cutter in which two-layer structure segments having a base layer are joined,
Although the base layer only serves the purpose of joining the segments to the base metal, the need for this base layer increases the height of the base layer and allows it to perform various functions on the segments themselves and with the base metal to which they are joined. The purpose is to make it stand out and have a desirable design.

[問題を解決するための手段] 前記目的のため、本発明は2層構造のセグメン
トの鉄片よりなるベース層の高さ寸法(t)を従
来の2mm程度より大きく採り、予めベース層に機
能上、デザイン上の前加工を容易となし得るよう
にし、種々の機能、および、もしくはデザインを
加工により施した超砥粒カツターを提供するもの
である。
[Means for Solving the Problem] For the above purpose, the present invention takes a height dimension (t) of the base layer made of iron pieces of the segment of the two-layer structure larger than the conventional approximately 2 mm, and preliminarily provides the base layer with a functional layer. The present invention provides a superabrasive cutter that facilitates pre-processing for design and has various functions and/or designs applied through processing.

以下第1図に示す実施例により本発明を説明す
る。
The present invention will be explained below with reference to an embodiment shown in FIG.

第8図と同一部分は同一符号で示す。カツター
固定孔6を有する円板状の台金1の外周にベース
層2、超砥粒層3を一体に備えるセグメントが接
合されるが、セグメントのベース層2の高さtは
2mm以上の高さに、機能、デザインに応じて採ら
れる。ベース層2の底面の形状は任意の形状でも
よいが、台金1との接合工程の便利さの点では、
カツターの使用によりセグメントの超砥粒層が摩
耗し盡くした時のカツターの半径をRとして、
(R−t)の円弧であることが好ましい。このよ
うな高さtの大きなベース層2を付けた2層構造
のセグメントは、第2図に示すように、所要の寸
法、形状を持ち、後述の加工を施した鉄片9をあ
らかじめ超砥粒4を含む超砥粒層粉末7の成形の
ための金型8の杵の一部に仕込むか、または成形
金型8の杵そのものとして用い、超砥粒層粉末7
を熱間圧縮により焼結させると同時に、鉄片9を
ベース層として同焼結体に熱間圧接せしめて一体
化してしまう方法を採るのが便利である。超砥粒
層焼結体と鉄片9との接合性を高めるために、鉄
片9の接合面にSn、Cu、Niなどの金属をメツキ
するとか、鉄片9に第3図イ,ロに示すようなく
さび形の凹凸加工を施したものを用いると接合強
度を一層向上させることができる。なおイ図は鉄
片9の長さ方向と直交する方向に複数のくさび形
の凹凸aの加工を施したものであり、ロ図は熱辺
9の長さ方向にくさび形の凹凸bの加工を施した
ものである。これらの凹凸をつける目的より考え
て、イ,ロの両者を組合せるとか、又ロの凹凸を
逆転せしめた形にするとかの形状とするなどは
種々考え得る所である。この鉄片9には、第4図
に示すような加工を予め施したものが使用され
る。第4図のイ図は、ベース層の断面がT字状
の、いわゆる段付ベース層を示す。ロ図は、ベー
ス層の断面がテーパー状ベース層を示す。これら
は、幅広の超砥粒層3をその上面において一体に
保持し、その下端において台金の厚みにその厚み
を合せることができるものである。ハ図は穴ぐり
を施したものであり、ニ図は切り溝を施したもの
であり、いずれも放熱機能とか、切り粉の排出な
どの機能をもたせたものである。ホ図、ヘ図はそ
れぞれ凹み溝、斜め凹み溝を設けたものであり、
いずれも切り粉の排出とか潤滑液の強制供給など
の機能をもたせたものである。ここに例示したイ
〜ヘはカツターとして望ましい機能をもたせるも
のであるが、これらの形状の組合せとか、変形な
どが可能であることは云う迄もない。
The same parts as in FIG. 8 are indicated by the same reference numerals. A segment that integrally includes a base layer 2 and a superabrasive grain layer 3 is joined to the outer periphery of a disc-shaped base metal 1 having a cutter fixing hole 6. The height t of the base layer 2 of the segment is 2 mm or more. They are chosen depending on the size, function, and design. The bottom surface of the base layer 2 may have any shape, but from the viewpoint of convenience in the joining process with the base metal 1,
The radius of the cutter when the superabrasive layer of the segment is worn out due to the use of the cutter is R,
It is preferable that it is a circular arc of (Rt). As shown in FIG. 2, the two-layered segment with the base layer 2 having a large height t is made of a steel piece 9 having the required dimensions and shape and processed as described below, which is coated with superabrasive grains in advance. The superabrasive layer powder 7 containing the superabrasive layer powder 7 can be charged into a part of the punch of the mold 8 for molding the superabrasive layer powder 7 containing 4, or used as the punch itself of the molding mold 8.
It is convenient to use a method in which the iron piece 9 is sintered by hot compression, and at the same time, the iron piece 9 is used as a base layer and hot-pressed onto the sintered body to integrate it. In order to improve the bondability between the superabrasive grain layer sintered body and the iron piece 9, the joint surface of the iron piece 9 may be plated with metal such as Sn, Cu, Ni, etc., or the iron piece 9 may be plated with metal such as Sn, Cu, Ni, etc. The bonding strength can be further improved by using a material with wedge-shaped irregularities. In addition, figure A shows a plurality of wedge-shaped unevenness a formed in the direction orthogonal to the length direction of the iron piece 9, and figure B shows a process in which wedge-shaped unevenness b is formed in the longitudinal direction of the hot side 9. This is what was done. Considering the purpose of providing these irregularities, there are various possibilities such as combining both A and B, or creating a shape in which the irregularities in B are reversed. This iron piece 9 is one that has been previously processed as shown in FIG. FIG. 4A shows a so-called stepped base layer in which the base layer has a T-shaped cross section. Figure B shows a base layer in which the cross section of the base layer is tapered. These are capable of holding the wide superabrasive grain layer 3 integrally on its upper surface and matching the thickness of the base metal at its lower end. Figure C shows one with holes drilled, and Figure D shows one with grooves, both of which have functions such as heat dissipation and discharge of chips. Diagrams E and F have recessed grooves and diagonal recessed grooves, respectively.
All of them have functions such as discharging chips and forcibly supplying lubricating fluid. It goes without saying that the shapes A to F illustrated here have a desirable function as a cutter, but it goes without saying that combinations and modifications of these shapes are also possible.

第5図は種々のベース層加工を行つた2層構造
セグメントと前記ベース層加工の施された部分に
合せて機能するように加工された台金との接合に
より、両部分にわたり形成される放熱機能、切り
粉排出機能、その他デザイン的模様を備えるもの
が示される。なお図の1セグメントごとに構成が
異なつたものを例示しているものであるが、実際
には多くの場合同じ模様をなす複数のセグメント
が台金外周に接合されるものであることは云うま
でもない。
Figure 5 shows the heat dissipation that is formed across both parts by joining a two-layer structure segment that has been processed with various base layer processes and a base metal that has been processed to function in accordance with the part that has been processed with the base layer. Those with functions, chip evacuation functions, and other design patterns are shown. Although the figure shows an example in which each segment has a different configuration, it goes without saying that in reality, in many cases, multiple segments with the same pattern are joined to the outer periphery of the base metal. Nor.

第2図に示すような方法でベース層を付ける場
合、すでに述べたように前もつて所要形状に加工
した鉄片9を用いて熱間圧縮焼結を行えばよい。
鉄片9に例えば第4図に示すようなベース層の各
形状を付与させるには、通常の板金加工、鍛造、
機械加工等の技術を用いれば容易に、安価に量産
することができる。
When attaching the base layer by the method shown in FIG. 2, hot compression sintering may be performed using the iron piece 9 which has been previously worked into the desired shape as described above.
In order to give the iron piece 9 each shape of the base layer as shown in FIG. 4, for example, ordinary sheet metal processing, forging,
It can be mass-produced easily and inexpensively using techniques such as machining.

このセグメントを各種加工を施した台金1にろ
う付け、溶接によつて接合する。第5図に示した
実施例は前述の切り粉の排出、空気流による放熱
のほか冷却水の供給、防振作用による騒音の抑
圧、切断時の応力集中の緩和等に役立つものであ
り、デザイン的にも造形の自由度にひろがりをも
たせるものである。
This segment is joined to the base metal 1 which has undergone various processing by brazing and welding. The embodiment shown in Fig. 5 is useful for discharging the chips mentioned above, dissipating heat through air flow, supplying cooling water, suppressing noise through vibration damping, alleviating stress concentration during cutting, etc. This also expands the freedom of design.

第6図は台金1とセグメントとの接合について
の別の実施例を示す、図示のように台金1の外周
部に所要の間隔をとつて切り溝10を設け、他方
セグメントのベース層3にも突出部11を形成し
て、前記切り溝10にセグメントのベース層に突
出部11をはめ込み、ろう付け、又は溶接によつ
て接合したものである。
FIG. 6 shows another embodiment of joining the base metal 1 and the segments.As shown in the figure, grooves 10 are provided on the outer periphery of the base metal 1 at required intervals, and A protrusion 11 is also formed in the segment, and the protrusion 11 is fitted into the base layer of the segment into the cut groove 10 and joined by brazing or welding.

又、本発明を応用すれば、必ずしも溶接やろう
付けによりセグメントを固定しなくても、機械的
機構により着脱可能なセグメントカツターの設計
も可能となる。
Further, by applying the present invention, it is possible to design a segment cutter that can be attached and detached by a mechanical mechanism without necessarily fixing the segments by welding or brazing.

[試験例] 超砥粒該当層:超砥粒なし(85%Cu+15%Sn)
混合粉、長さ32mm、厚み2.0mm、R円弧46mmR ベース層:SPCC長さ32mm、厚み2.0mm、高さ
(t)7mm、r円弧39mmr、r面長さ27mm、R
円弧面にピツチ3mmで直角の突起波形をつけ
る。
[Test example] Super abrasive layer: No super abrasive (85% Cu + 15% Sn)
Mixed powder, length 32mm, thickness 2.0mm, R arc 46mmR Base layer: SPCC length 32mm, thickness 2.0mm, height (t) 7mm, r arc 39mmr, r surface length 27mm, R
Add right-angled protruding waveforms to the arc surface with a pitch of 3 mm.

以上第7図参照。 See Figure 7 above.

ベース層となる鉄片9を杵の一部に仕込んだ金
型に前記混合粉を充填し、水素気流中で730℃に
加熱し、1トン/cm2の圧力により粉末焼結と同時
にベース層の圧接を行つた。
The mixed powder was filled into a mold in which iron pieces 9 that would become the base layer were placed in a part of the punch, heated to 730°C in a hydrogen stream, and the powder was sintered under a pressure of 1 ton/cm 2 at the same time as the base layer. I did pressure welding.

上記により得られた2層構造のセグメントを直
径78mm、厚み1.6mmのSPCCの円形状台金1に電子
ビーム溶接を行つた。
The segment with the two-layer structure obtained above was electron beam welded to a circular base metal 1 of SPCC having a diameter of 78 mm and a thickness of 1.6 mm.

電子ビーム溶接条件 加速電圧150kv、電子流2.5mA、電子照射線幅
1mm、真空度2×10-4mmHg、セグメントの接着
強度を測定したところ、60Kg.cmのトルクをかけ
ても破断は起らず、台金が曲つた。接着強度は十
分に高い。
Electron beam welding conditions: acceleration voltage 150 kV, electron current 2.5 mA, electron irradiation line width 1 mm, vacuum degree 2 x 10 -4 mmHg, and the adhesive strength of the segments was measured to be 60 kg. Even when a torque of cm was applied, no breakage occurred and the base metal was bent. Adhesive strength is sufficiently high.

[効果] 以上説明したように、従来の2層構造のセグメ
ントではベース層の高さ寸法は単に台金との接合
のみを考慮しただけのものであつて、2mm以下と
きわめて小さいのにくらべて、本発明において
は、2層構造のカツターセグメントのベース層の
高さ寸法を大きく採つている。このベース層は超
砥粒層の直下にあるので、例えば切り粉排出用の
溝などをつけることにより、超砥粒層に直接的に
効果を及ぼす機能を附与させることが、容易に、
安価に実現でき、従来品のようなベース層の高さ
寸法が2mm以下のものを接合するカツターの製造
では、極めて困難とされていた各種加工が極めて
容易となる。
[Effects] As explained above, in the conventional two-layer structure segment, the height of the base layer is only taken into account the connection with the base metal, and is extremely small at 2 mm or less. In the present invention, the base layer of the cutter segment having a two-layer structure has a large height dimension. Since this base layer is directly below the superabrasive grain layer, it is easy to add a function that directly affects the superabrasive grain layer, for example by adding grooves for discharging chips.
It can be realized at a low cost, and various processes that were considered extremely difficult to manufacture in the manufacture of cutters that join base layers with a height of 2 mm or less, such as conventional products, are now extremely easy.

具体的には従来法によりセグメントを台金に接
合したあとで、第5図に例示するような半月形
や、鍵穴形の穴を台金にあけることは特殊加工機
や工具を必要とし、場合によつては高価な放電加
工機とかレーザー加工機のような機械で長時間を
掛けて細工しなければならないにもかかわらず、
第4図ハ,ニに例示するような本発明のセグメン
トを用いれば容易に成形できる。又第5図に例示
するような超砥粒層直下に凹み溝を付けるには、
第4図ホ,ヘに示すような凹み溝を持つベース層
鉄片を冷間鍛造によつて作り、これを用いて第4
図ホ,ヘのようなセグメントを作り、これを台金
に接合すれば容易に出来るが、従来法によりセグ
メントを台金に接合したあとから、冷間鍛造で凹
み溝を付けようとするならば、台金に極度の歪を
与えるので、このような作業は事実上不可能であ
るが、本発明はこのような点も十分解消できる。
Specifically, after the segments have been joined to the base metal using the conventional method, drilling a half-moon-shaped or keyhole-shaped hole in the base metal as shown in Figure 5 requires special processing machines and tools. In some cases, it may be necessary to spend a long time processing using expensive machines such as electrical discharge machines or laser processing machines.
It can be easily molded using the segments of the present invention as illustrated in FIGS. 4C and 4D. In addition, in order to form a concave groove directly under the superabrasive grain layer as illustrated in Fig. 5,
A base layer iron piece with concave grooves as shown in Fig. 4 E and F is made by cold forging, and this is used to form the fourth
This can easily be done by making segments like those shown in Figures E and F and joining them to the base metal, but if you try to cold forge the concave grooves after joining the segments to the base metal using the conventional method. , such work is virtually impossible since it causes extreme distortion to the base metal, but the present invention can satisfactorily solve this problem.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明の実施例を示す。第2図はセグ
メント製作の説明図である。第3図イ,ロはベー
ス層となる鉄片の形状を示す。第4図イ,ロ,
ハ,ニ,ホ,ヘはそれぞれ本発明でもちいられる
セグメントを示す。第5図は本発明各種実施例を
示す。第6図は本発明の別の実施例を示す。第7
図は本発明試験例の説明図である。第8図は、従
来の2層構造セグメントによるカツターを示す。 1……台金、2……ベース層、3……超砥粒
層、4……超砥粒、5……超砥粒層用ボンド粉末
焼結体、6……カツター固定孔、7……超砥粒層
用ボント粉末、8……成形金型、9……鉄片、1
0……セグメント固定用台金の切り溝、11……
ベース層突出部、12……台金の切り溝。
FIG. 1 shows an embodiment of the invention. FIG. 2 is an explanatory diagram of segment production. Figure 3 A and B show the shape of the iron piece that will become the base layer. Figure 4 A, B,
C, D, H and F respectively indicate segments used in the present invention. FIG. 5 shows various embodiments of the present invention. FIG. 6 shows another embodiment of the invention. 7th
The figure is an explanatory diagram of a test example of the present invention. FIG. 8 shows a cutter with a conventional two-layer structure segment. DESCRIPTION OF SYMBOLS 1... Base metal, 2... Base layer, 3... Super abrasive grain layer, 4... Super abrasive grain, 5... Bond powder sintered body for super abrasive grain layer, 6... Cutter fixing hole, 7... ...Bont powder for super abrasive grain layer, 8...Molding mold, 9...Iron piece, 1
0... Cut groove of base metal for fixing segment, 11...
Base layer protrusion, 12... Cut groove of base metal.

Claims (1)

【特許請求の範囲】[Claims] 1 円板状の台金の外周に、超砥粒層とベース層
よりなる2層構造のセグメントを接合してなるセ
グメントカツターにおいて、ベース層にセグメン
トカツターとしての機能および、もしくはデザイ
ンのための穴ぐり加工、切り溝加工、凹み溝加工
のいずれか一つ、又は複数の加工を施した2mm以
上の厚みの鉄片を用いることを特徴とするセグメ
ントカツター。
1 In a segment cutter formed by joining a two-layer structure segment consisting of a superabrasive grain layer and a base layer to the outer periphery of a disk-shaped base metal, the base layer has a function as a segment cutter and/or a segment cutter for design purposes. A segment cutter characterized by using an iron piece with a thickness of 2 mm or more that has been subjected to one or more of the following processes: boring, cutting grooves, and recessed grooves.
JP11387185A 1985-05-27 1985-05-27 Segment cutter Granted JPS61270077A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11387185A JPS61270077A (en) 1985-05-27 1985-05-27 Segment cutter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11387185A JPS61270077A (en) 1985-05-27 1985-05-27 Segment cutter

Publications (2)

Publication Number Publication Date
JPS61270077A JPS61270077A (en) 1986-11-29
JPH0346268B2 true JPH0346268B2 (en) 1991-07-15

Family

ID=14623198

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11387185A Granted JPS61270077A (en) 1985-05-27 1985-05-27 Segment cutter

Country Status (1)

Country Link
JP (1) JPS61270077A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3011417B2 (en) * 1989-04-25 2000-02-21 三和研磨工業株式会社 Polishing machine manufacturing method
JPH0359155U (en) * 1989-10-10 1991-06-11
KR100420933B1 (en) * 2003-03-06 2004-03-02 이화다이아몬드공업 주식회사 Gear type machining tip and tool attaching the same thereon
JP2006142455A (en) * 2004-11-24 2006-06-08 Toyoda Van Moppes Ltd Superabrasive grain grinding wheel and its manufacturing method
KR100611794B1 (en) * 2004-12-08 2006-08-11 이화다이아몬드공업 주식회사 A Cutting Tool and Method for Manufacturing the Cutting Tool

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5632292U (en) * 1979-08-17 1981-03-30

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5214595U (en) * 1975-07-21 1977-02-01

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5632292U (en) * 1979-08-17 1981-03-30

Also Published As

Publication number Publication date
JPS61270077A (en) 1986-11-29

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