JP2004017276A - Wire saw and its manufacturing method - Google Patents

Wire saw and its manufacturing method Download PDF

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Publication number
JP2004017276A
JP2004017276A JP2002211792A JP2002211792A JP2004017276A JP 2004017276 A JP2004017276 A JP 2004017276A JP 2002211792 A JP2002211792 A JP 2002211792A JP 2002211792 A JP2002211792 A JP 2002211792A JP 2004017276 A JP2004017276 A JP 2004017276A
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Prior art keywords
wire
shape
metal
wire saw
abrasive grains
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Japanese (ja)
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Tadao Ishikawa
石川 唯夫
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a wire saw which is independent of self-dressing action of an object to be ground, safe, free from fluctuation of grinding performance for a long time, quiet and excellent in the grinding performance and its manufacturing method. <P>SOLUTION: A wire is formed of a rope-shaped core wire and a single or a plurality of lines of cylindrical coil-shaped base metal wires 10, and a cutting surface shape of the base metal wires is made in a continuous structure of a recessed shape and a protruded shape. A groove 11 is formed on a front face part in a cutting direction of a recessed part, and abrasive grains 2 are firmly adhered with metal. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
この発明は、外周面に多数の砥粒を金属によって化学的に固着したロープ状のワイヤソーとその製造方法に関する。
【0002】
【従来の技術】
従来、ワイヤソーとしては、砥粒を金属粉末と混合成形した後に台金とともに焼成して、砥層部を有する台金(ビーズ)を製作し、この台金を金属ワイヤロープに固定した、石材、コンクリート構造物の切断に用いられるメタルボンドワイヤソーが広く知られている。(例えば、特公昭49−2231号、特公昭51−38473号)
また、メタルボンドを用いずに直接台金に砥粒を接触させて、砥粒間の隙間にニッケルなどを電気メッキ法、化学メッキ法などで析出させて砥粒を固定させ、その台金をワイヤー線に固定する方法も広く知られている。
さらに、円筒コイル状に巻かれた台金線と、台金線の外側表面に金属によって固着された多数の砥粒と、台金線の内側空間にその全長にわたって挿入固定されたロープ状ワイヤソーもある。(例えば、特願平12−79070)
【0003】
【発明が解決しようとする課題】
従来、メタルボンド研削工具は被研削物の切り屑による自生発刃作用(セルフドレッシング)により、切刃を露出させるためボンドの選択で研削性能が著しく変動する。また、加工により切り屑は冷却水とともに外部に排除されるが、十分に切り屑が冷却水とともに外部に排除されることにより、研削性能を向上させる必要がある。切り屑の量、形状はボンドと被削材、加工条件により、その整合性(相性)によっても研削性能に大きな影響を与えてしまう。これが研削性能の不安定要因となり、研削性能が著しく変動してしまう。
【0004】
また、ボンド部材は摩耗することによって砥粒を露出させるが、ボンドと砥粒との間には、化学的な結合がないために、砥粒はボンド部材から容易に脱落してしまう。したがって、工具全体における砥粒の研削に関与できる割合は極めて低く、不安定な研削と工具寿命の短縮の原因になっていた。
【0005】
さらに、従来のインプリ型(Impregnated)メタルボンドワイヤソー1は図1に示すようにワイヤー芯線3に所定の間隔を置いて砥層台金6がコーキング(カシメ)によって固定され、さらにプラスチック、ゴムなどの被覆材8で固定されているため、本来ワイヤーのもつ柔軟性や応力の分散性能を阻害していた。
【0006】
この発明は前記問題点を根本的に解決するもので、被研削物によるセルフドレッシング作用に依存せず、安全に、しかも長時間研削性能が変動しない、静粛で、研削性能が優れたワイヤソー、およびその製造方法を提供することを目的とする。
【0007】
【課題を解決するための手段】
この発明のワイヤソーは、単条あるいは複条の円筒コイル状に巻かれたその切断面形状が芯線に対して凹形状と凸形状の連続的構造台金線と、凹形状の台金線の凹部内側に金属によって固着された多数の砥粒と、台金線の内側空間にその全長にわたって挿入固定されたロープ状の芯線とからなることを特徴としている。
また、この発明のワイヤソーの製造方法は、円筒コイル状に巻かれた台金線に対して凹形状の凹部の内側に、銅合金などを主成分とした粉末に添加材を混練、成形したものを連続的に配置し、その表面及び内部に活性金属ロー材を塗布し、または混練しそのロー材の表面及び内部に多数の砥粒を配設し、全体を真空、還元、あるいは中性の雰囲気中で合金成分の一部あるいは全部が溶融する温度まで加熱して砥粒をその配設箇所に金属によって固着し、台金線の切断加工方向の前面部に被削材の切り屑、冷却水を通すためのコイル状の溝が中空のコイル状構造物あるいはゴム、プラスチック射出成形金型などにより構築された溝をもち、さらにロープ状の芯線を前記台金線の内側空間にその全長にわたって挿入、固定することを特徴としている。
【0008】
この発明のワイヤソーにおいては、芯線は金属で構成する。
一方、砥粒としては、ダイヤモンド、立方晶窒化ホウ素、炭化ケイ素、および超硬合金からなる群の中から選択するとよい。
コイル状の台金線の切断面形状は芯線に対して凹形状と凸形状の連続的構造であり、凹部の内側の凹空間に砥粒を配設できる、砥粒を凹台金の内側空間の表面あるいは内部に包含できてよい。
台金線の切断加工方向の前面部に被削材の切り屑、冷却水を通すためのコイル状の溝が中空のコイル状構造物を台金線とともに埋設するか、またはゴム、プラスチックなどと接着しないコイル状構造線を埋設した後、ゴム、プラスチックなどでの固定後に除去することにより溝形状を構築してもよい。
また、芯線への台金線の固定は、コイル状の台金線の弾性変形によって生じる摩擦により行うとよく、さらに台金線コイルの防錆のため、ゴム、プラスチックスなどで少なくとも芯線の部分の表面を被覆するとよい。
【0009】
【作用】
以上のように構成することにより、この発明のワイヤソーは台金線の上に砥粒による連続した切れ刃を形成できる。しかも台金線は単条あるいは複条の円筒コイル状に巻かれているので、そのコイルのピッチを変化させることにより平均砥粒間隔を調整して、切れ味と寿命を制御することができる。
【0010】
台金線の切断加工方向の前面部に被削材の切り屑、冷却水を通すための中空のコイル状構造物はワイヤソー表面が被削材によって摩耗すると中空であるので部分的に連続した溝が構成される。あるいはゴム、プラスチック射出成形金型などにあらかじめ凸部を構成させると溝は成形できる。このため切り屑、冷却水の排除が容易になされる。
【0011】
また、台金線は連続した複数のコイル状であるから、砥粒の切れ刃は常に切断すべき被研削物に対して接触しているので、断続研削で生じやすい振動や騒音を極めて少なくすることができる。さらに、コイル状態の特徴として切断方向に対して、常に螺旋角度を保持できるので、作業時にワイヤソー全体に自転を生じることになり、ワイヤソーの偏摩耗を防止でき、工具の寿命伸長に極めて有利に作用する。
【0012】
また、コイル状の台金線は芯線に張りと柔軟性を付与して、被切断物の小さな曲率部分の切断を可能にすると共に、ワイヤソーの駆動による張力に対して、適切な応力分散を可能にする。
【0013】
【発明の実施の形態】
以下、この発明の実施例を図面に基づいて説明する。図1は従来のインプリ型メタルボンドワイヤソー1の一部縦断正面図であって、このワイヤソー1ではダイヤモンド砥粒2がメタルボンド層4によって台金6に取り付けられ、その台金6がワイヤソー1の芯線3にその長手方向に間隔を置いて固定されていた。
【0014】
図2はこの発明のワイヤソーの一部を示す正面図で、このワイヤソー1は例えば以下のようにして作成される。銅合金(Cu−20重量%Sn)を主成分にした粉末に、パラフィン、ポリエチレングリコールなどの添加材を混練したものを成形して、単条のコイル状台金線10の外側表面に連続的に配置し、その表面にジルコニュウム入りロー材のような活性金属ロー材を塗布し、砥粒2をそのロー材の上に散布、配設する。次に、これら全体を10−3Pa以下の真空、還元あるいは中性の雰囲気中で、合金成分の一部あるいは全部が溶融する温度、例えば880°C以上の温度で約10分間加熱して、ロー材により、砥粒2の台金線10への金属による固着を実現する。
【0015】
以上のようにして、凹形状内側空間に多数の砥粒2を固着された単条あるいは複条のコイル状台金線10にコイル状台金線とほぼ同一内径、外径、ピッチの鋼状コイル13を回転させながら台金線に沿わせて切断方向前部になるように設置して後、この内側空間に、ロープ状の芯線3をその全長にわたって挿入し、芯線3を台金線の弾性変形等によって台金線自体に固定して、ワイヤソー1を完成する。
さらに、ワイヤソー1の全体、あるいは芯線3の部分の外周をゴムあるいはプラスチックの被覆材8で被覆する。その後鋼コイル13をワイヤソー1の表面から除去すると溝11が構成された。
例えば、図3に示すようにその右半分に示した撚り芯線12を有するワイヤソーを、その左半分に示すように黒色ゴムの被覆材8で被覆する。この場合、先ずワイヤソー1全体を被覆材8で被覆しておくと、ワイヤソーの使用に応じて砥粒の刃先が被覆材を破り、続いて台金線部分の被覆材が剥離されて、図の左半分に示した被覆状態にすると溝11が構成されたことになる。
また、台金線には亜鉛、スズ成分が含まれているため、ゴムと台金線との密着は十分に高く、ゴムそのものの強度よりも強い接着強度が得られる。鋼コイル13はゴムとは接着しないので、容易に除去できる。
【0016】
砥粒2の粒度は、20〜80メッシュが好ましく、場合によっては80〜400メッシュとしてもよい。
銅合金は10〜33重量%Snの青銅合金、5〜20重量%Znの真鍮合金あるいは、1〜13重量%AlのAl合金などの組み合わせでもよい。好ましくは炭素と反応しない銅、スズ、アルミの合金で活性金属の固溶限が大きいものがよい。
活性金属ロー材はセラミックスを濡らす性質があるが、金属間化合物を構成して脆化することがある。ロー材の厚みは砥粒径の10〜60%の厚みにするのがよい。銅合金に対する活性金属ロー材の割合は7〜20重量%になるようにロー材を調整する。砥粒の突出量はロー材に濡れた状態で砥粒径に対して30〜70%が適当である。
【0017】
次に、この発明における単条あるいは複条コイル状台金線の切断面形状については凹形状を例として、図4に示した。台金線の切断面形状が凹形のコイル状によりその凹部の内側空間に砥粒を配設できる。これは砥粒を凹部内側に包含させる形状で受けることで、砥粒の脱落を防止できる。したがって、切れ味、寿命に極めて大きな効果を与える。
【0018】
実験例
直径8mmで約25メートルのワイヤソーをこの発明のとおりに製作し、移動式ワイヤソーマシンを用いて繊維強化プラスチック(FRP)材の切断加工を実施し、その切断速度を計測して、加工性能を溝付きと溝なし品と比較した。砥粒はいずれもダイヤモンド砥粒であり、砥粒径はすべて40/50メッシュのものを用いた。
その結果、この発明のワイヤソーの切断速度は、溝なしに比べ10〜30%早く切断でき、その高い切断加工性能が確認された。
【0019】
また、耐久性においても、溝なしワイヤソーは偏摩耗を生じる場合があり、台金まで達する部分も見られたが、溝付きは冷却と切り屑の良好な排除により、FRPの焼け付きも生じることなく、全面が均一な摩耗形態を示しており、これが切断性能、特に耐久性を向上させた原因と考えられた。この発明のワイヤソーはほとんど砥粒の脱落はなく、耐久性にも優れている事がわかった。また、焼け付きも全く見られなかった。
【0020】
【発明の効果】
この発明の製造方法により製造されたワイヤソーは砥粒の突出量を非常に大きくとれ、かつ溝成形で空間を構成したことにより、被削材の切りくずの排除がよく、ボンド部分と被削材との接触が少ないので研削抵抗の低下させ、被削材と台金との接触で生ずる振動や騒音を固定するゴムなどの被覆材で吸収できるので極めて高い静粛性や高い加工性能を示し、刃先部分、溝部が常に連続しているので切り屑の排除、研削熱の放散性もよい。
また、砥粒は金属によって強く固着されているので、長時間の安定した研削性能を維持でき、砥粒の有効利用が計れる。芯線は、材料を適宜に選んで強度を向上できるため、細いワイヤソーの製造ができ、加工能率が向上する。そのため、目詰まりし易く、焼きつきを生じやすいFRPなどの切断加工には特に有効である。
また、硬い石材からコンクリート構造物、人工大理石、窯業製材、あるいはそれらの複合材料の切断など広い用途に適合できる。軽量で取り扱いやすいものにできるので、全体として低コストで安全性が高く、付加価値の高いワイヤソーとすることができる。
【図面の簡単な説明】
【図1】従来のインプリ型メタルボンドワイヤソーの一部縦断正面図である。
【図2】この発明のワイヤソーの一部を示す正面図であり、被覆成形前に鋼コイルを台金線前部に配置した状況を示す説明図である。
【図3】撚り芯線を被覆材で被覆した、この発明の実施例を、被覆材を一部剥離して溝が構成された状況を示す説明図である。
【図4】この発明の台金線コイルの切断面形状を示す説明図である。
【符号の説明】
1 ワイヤソー
2 砥粒
3 芯線
4 メタルボンド層
6 台金
8 被覆材
10 台金線
11 溝
12 撚り芯線
13 鋼コイル
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a rope-shaped wire saw in which a large number of abrasive grains are chemically fixed to an outer peripheral surface with a metal, and a method for manufacturing the same.
[0002]
[Prior art]
Conventionally, as a wire saw, a mixture of abrasive grains and metal powder, followed by baking together with a base metal to produce a base metal (bead) having an abrasive layer portion, and fixing the base metal to a metal wire rope, a stone material, Metal bond wire saws used for cutting concrete structures are widely known. (For example, JP-B-49-2231 and JP-B-51-38473)
Also, the abrasive grains are brought into direct contact with the base metal without using metal bonds, and nickel or the like is deposited in the gaps between the abrasive grains by electroplating, chemical plating, etc., and the abrasive grains are fixed. The method of fixing to a wire is also widely known.
Furthermore, a base metal wire wound in a cylindrical coil shape, a large number of abrasive grains fixed to the outer surface of the metal base wire by metal, and a rope-shaped wire saw inserted and fixed over the entire length of the inside of the metal base wire are also provided. is there. (For example, Japanese Patent Application No. Hei 12-79070)
[0003]
[Problems to be solved by the invention]
2. Description of the Related Art Conventionally, a metal bond grinding tool has a self-dressing action (self-dressing) due to chips on an object to be ground. Further, although the chips are removed to the outside together with the cooling water by the processing, it is necessary to improve the grinding performance by sufficiently removing the chips to the outside together with the cooling water. The amount and shape of the chips greatly affect the grinding performance depending on the bond, the work material, and the processing conditions, and the consistency (compatibility) thereof. This becomes an unstable factor of the grinding performance, and the grinding performance fluctuates remarkably.
[0004]
Further, although the bond member exposes the abrasive grains by wear, the abrasive grains easily fall off the bond member because there is no chemical bond between the bond and the abrasive grains. Therefore, the proportion of the entire tool that can participate in the grinding of the abrasive grains is extremely low, causing unstable grinding and shortening of the tool life.
[0005]
Further, in the conventional impregnated metal bond wire saw 1, as shown in FIG. 1, an abrasive layer base metal 6 is fixed to the wire core wire 3 at a predetermined interval by caulking (caulking). Since the wire is fixed by the covering material 8, the flexibility and the stress dispersing performance of the wire were originally hindered.
[0006]
The present invention fundamentally solves the above-mentioned problems, and does not depend on the self-dressing action of the object to be ground, is safe, does not fluctuate in grinding performance for a long time, is quiet, has excellent grinding performance, and a wire saw. It is an object of the present invention to provide a manufacturing method thereof.
[0007]
[Means for Solving the Problems]
The wire saw according to the present invention has a continuous structure base wire having a concave or convex shape with respect to the core wire, and a concave portion of the concave base wire wound in a single or multiple cylindrical coil shape. It is characterized by comprising a large number of abrasive grains fixed inside by metal and a rope-shaped core wire inserted and fixed in the space inside the base metal wire over its entire length.
Further, the method for manufacturing a wire saw according to the present invention is a method in which an additive material is kneaded and molded into a powder mainly composed of a copper alloy or the like inside a concave portion having a concave shape with respect to a base metal wire wound in a cylindrical coil shape. Are continuously arranged, and the active metal brazing material is applied or kneaded on its surface and inside, and a large number of abrasive grains are arranged on the surface and inside of the brazing material, and the whole is vacuum, reduced, or neutralized. Heat to a temperature at which some or all of the alloy components are melted in the atmosphere, fix the abrasive grains with metal at the location where they are arranged, and cut the chips of the work material on the front part in the cutting direction of the base metal wire, cooling A coil-shaped groove for passing water has a hollow coil-shaped structure or a groove formed by rubber, a plastic injection molding die, and the like, and a rope-shaped core wire is further inserted into the inner space of the base metal wire over its entire length. It is characterized by inserting and fixing .
[0008]
In the wire saw of the present invention, the core wire is made of metal.
On the other hand, the abrasive grains may be selected from the group consisting of diamond, cubic boron nitride, silicon carbide, and cemented carbide.
The cut surface shape of the coil-shaped base metal wire is a continuous structure of a concave shape and a convex shape with respect to the core wire, and abrasive grains can be arranged in a concave space inside the concave portion. May be included on the surface or inside.
A coil-shaped groove for cutting chips and cooling water to pass through the front of the metal wire in the cutting direction is embedded in a hollow coil-like structure together with the metal wire, or is made of rubber, plastic, etc. The groove shape may be constructed by embedding a coil-shaped structural wire that does not adhere and then removing it after fixing with rubber, plastic, or the like.
It is preferable that the core wire is fixed to the core wire by friction generated by elastic deformation of the coil metal wire. Further, in order to prevent rust of the metal core wire, at least a portion of the core wire with rubber, plastics, or the like. Is preferably coated.
[0009]
[Action]
With the configuration described above, the wire saw of the present invention can form a continuous cutting edge using abrasive grains on the base metal wire. Moreover, since the base metal wire is wound in the form of a single or double cylindrical coil, the average abrasive grain interval can be adjusted by changing the pitch of the coil to control the sharpness and life.
[0010]
The hollow coil-shaped structure for passing the cuttings of the work material and cooling water to the front part in the cutting direction of the base metal wire is partially hollow because the wire saw surface is hollow when the work material wears it. Is configured. Alternatively, the groove can be formed by forming a convex portion in advance in a rubber or plastic injection mold. For this reason, chips and cooling water can be easily removed.
[0011]
In addition, since the base metal wire is in the form of a plurality of continuous coils, the cutting edge of the abrasive grains is always in contact with the workpiece to be cut, so that vibration and noise that are likely to occur in intermittent grinding are extremely reduced. be able to. Furthermore, since the spiral state can always be maintained with respect to the cutting direction as a feature of the coil state, the entire wire saw will rotate during operation, preventing uneven wear of the wire saw and significantly extending the life of the tool. I do.
[0012]
In addition, the coil-shaped base metal wire provides tension and flexibility to the core wire, enabling cutting of small curvature parts of the object to be cut, and appropriate stress distribution against the tension caused by driving the wire saw. To
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a partial longitudinal front view of a conventional implicated metal bond wire saw 1. In this wire saw 1, diamond abrasive grains 2 are attached to a base metal 6 by a metal bond layer 4, and the base metal 6 is attached to the wire saw 1. It was fixed to the core wire 3 at intervals in the longitudinal direction.
[0014]
FIG. 2 is a front view showing a part of the wire saw according to the present invention. The wire saw 1 is produced, for example, as follows. A powder obtained by kneading an additive such as paraffin or polyethylene glycol into a powder mainly composed of a copper alloy (Cu-20% by weight Sn) is continuously formed on the outer surface of the single coil-shaped base wire 10. And an active metal brazing material such as a zirconium-containing brazing material is applied to the surface thereof, and abrasive grains 2 are scattered and arranged on the brazing material. Next, the whole of these is heated in a vacuum of 10 −3 Pa or less, in a reducing or neutral atmosphere, at a temperature at which some or all of the alloy components melt, for example, at a temperature of 880 ° C. or more for about 10 minutes, The brazing material realizes the fixation of the abrasive grains 2 to the base metal wire 10 by metal.
[0015]
As described above, the single or multiple coiled base wire 10 having a large number of abrasive grains 2 fixed in the concave inner space has a steel shape having substantially the same inner diameter, outer diameter, and pitch as the coiled base wire. After the coil 13 is rotated and installed along the base wire so as to be in front of the cutting direction, the rope-shaped core wire 3 is inserted into the inner space over the entire length thereof, and the core wire 3 is inserted into the base wire. The wire saw 1 is completed by being fixed to the base metal wire itself by elastic deformation or the like.
Further, the entire wire saw 1 or the outer periphery of the core wire 3 is covered with a rubber or plastic covering material 8. Then, when the steel coil 13 was removed from the surface of the wire saw 1, the groove 11 was formed.
For example, as shown in FIG. 3, a wire saw having a twisted core wire 12 shown on the right half thereof is covered with a coating material 8 of black rubber as shown on the left half thereof. In this case, first, when the entire wire saw 1 is covered with the covering material 8, the cutting edge of the abrasive grains breaks the covering material in accordance with the use of the wire saw, and subsequently, the covering material of the base metal wire portion is peeled off. When the covering state is shown in the left half, the groove 11 is formed.
Further, since the base metal wire contains zinc and tin components, the adhesion between the rubber and the base metal wire is sufficiently high, and an adhesive strength higher than the strength of the rubber itself can be obtained. Since the steel coil 13 does not adhere to rubber, it can be easily removed.
[0016]
The grain size of the abrasive grains 2 is preferably 20 to 80 mesh, and in some cases, may be 80 to 400 mesh.
The copper alloy may be a combination of a bronze alloy of 10 to 33 wt% Sn, a brass alloy of 5 to 20 wt% Zn, or an Al alloy of 1 to 13 wt% Al. Preferably, an alloy of copper, tin, and aluminum that does not react with carbon and has a large solid solubility limit of the active metal is preferable.
The active metal brazing material has a property of wetting ceramics, but may form an intermetallic compound and become brittle. The thickness of the brazing material is preferably 10 to 60% of the abrasive grain size. The brazing material is adjusted so that the ratio of the active metal brazing material to the copper alloy is 7 to 20% by weight. The amount of protrusion of the abrasive grains is suitably 30 to 70% with respect to the abrasive grain size when wet with the brazing material.
[0017]
Next, the cut surface shape of the single or multiple coiled base metal wire in the present invention is shown in FIG. 4 as an example of a concave shape. Abrasive grains can be disposed in the space inside the concave portion due to the coil shape of the cut surface of the base metal wire being concave. This can prevent the abrasive grains from falling off by receiving the abrasive grains in a shape to be contained inside the concave portion. Therefore, it has a great effect on sharpness and life.
[0018]
Experimental Example A wire saw having a diameter of 8 mm and a length of about 25 meters was manufactured according to the present invention, and a fiber-reinforced plastic (FRP) material was cut using a movable wire saw machine. The cutting speed was measured, and the processing performance was measured. Was compared with the grooved and non-grooved products. The abrasive grains were all diamond abrasive grains, and the abrasive grains were all 40/50 mesh.
As a result, the cutting speed of the wire saw of the present invention could be cut by 10 to 30% faster than that without the groove, and its high cutting performance was confirmed.
[0019]
In addition, in terms of durability, the wire saw without grooves may cause uneven wear and some parts reach the base metal.However, with grooves, cooling and good removal of chips may cause burning of FRP. Instead, the entire surface showed a uniform abrasion pattern, which was considered to be the cause of improving the cutting performance, particularly the durability. It was found that the wire saw of the present invention hardly dropped abrasive grains and was excellent in durability. Also, no burning was observed.
[0020]
【The invention's effect】
The wire saw manufactured by the manufacturing method of the present invention has a very large protruding amount of abrasive grains, and has a space formed by groove forming, so that chips of the work material can be removed well, and the bond portion and the work material can be removed. The contact between the workpiece and the base metal reduces the grinding resistance, and the vibration and noise generated by the contact between the workpiece and the base metal can be absorbed by the covering material such as rubber, which shows extremely high quietness and high processing performance. Since the portion and the groove are always continuous, it is possible to eliminate chips and dissipate grinding heat.
In addition, since the abrasive grains are strongly fixed by the metal, stable grinding performance for a long time can be maintained, and the effective use of the abrasive grains can be measured. As for the core wire, since the strength can be improved by appropriately selecting the material, a thin wire saw can be manufactured, and the processing efficiency is improved. Therefore, it is particularly effective for cutting of FRP or the like, which is easily clogged and easy to cause seizure.
In addition, it can be applied to a wide range of applications such as cutting hard stones to concrete structures, artificial marble, ceramic lumber, or composite materials thereof. Since it can be made lightweight and easy to handle, a wire saw with high safety and high added value as a whole can be obtained.
[Brief description of the drawings]
FIG. 1 is a partial longitudinal front view of a conventional impregnated metal bond wire saw.
FIG. 2 is a front view showing a part of the wire saw of the present invention, and is an explanatory view showing a situation where a steel coil is arranged in front of a base metal wire before coating and forming.
FIG. 3 is an explanatory view showing a state in which a groove is formed by partially peeling off the covering material in the embodiment of the present invention in which the twisted core wire is covered with the covering material.
FIG. 4 is an explanatory view showing a cut surface shape of the base metal wire coil of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Wire saw 2 Abrasive grain 3 Core wire 4 Metal bond layer 6 Base metal 8 Coating material 10 Base metal wire 11 Groove 12 Twisted core wire 13 Steel coil

Claims (6)

単条あるいは複条の円筒コイル状に巻かれた台金線と、台金線に金属によって固着された多数の砥粒と、台金線の内側空間にその全長にわたって挿入固定されたロープ状の芯線とからなることを特徴とするワイヤソー。A metal wire wound in a single or multiple cylindrical coil shape, a large number of abrasive grains fixed to the metal wire by metal, and a rope-like shape inserted and fixed in the inner space of the metal wire over its entire length A wire saw comprising a core wire. 円筒コイル状に巻かれた台金線の切断面形状が芯線に対して凹形状と凸形状の連続的構造であり、凹部の内側に金属によって固着された多数の砥粒を包含する形状である請求項1記載のワイヤソー。The cut surface shape of the base metal wire wound in a cylindrical coil shape is a continuous structure of a concave shape and a convex shape with respect to the core wire, and a shape including a large number of abrasive grains fixed by metal inside the concave portion. The wire saw according to claim 1. 円筒コイル状に巻かれた台金線の切断加工方向の前面部に切り屑、冷却水を通す連続したコイル状の溝を構築した構造である請求項1記載のワイヤソー。2. The wire saw according to claim 1, wherein the wire saw has a structure in which a continuous coil-shaped groove through which chips and cooling water are passed is formed on the front surface of the base metal wire wound in a cylindrical coil shape in the cutting direction. 砥粒がダイヤモンド、立方晶窒化ホウ素、炭化ケイ素、および超硬合金からなる群の中から選択された砥粒であることを特徴とする請求項1記載のワイヤソー。The wire saw according to claim 1, wherein the abrasive is an abrasive selected from the group consisting of diamond, cubic boron nitride, silicon carbide, and cemented carbide. ワイヤソーの少なくとも芯線の部分の外周部と台金線をゴムあるいはプラスチックの被覆材で被覆した請求項1〜4のいずれかに記載のワイヤソー。The wire saw according to any one of claims 1 to 4, wherein at least the outer peripheral portion of the core wire and the base metal wire of the wire saw are covered with a rubber or plastic covering material. 単条あるいは複条の円筒コイル状に巻かれた凹形状と凸形状を形成する台金線に、銅合金あるいはニッケル合金などを主成分とした粉末に添加材を混練、成形したものを連続的に配置し、その表面及び内部に活性金属ロー材を塗布あるいは混練し、そのロー材の表面および内部に多数の砥粒を配設し、全体を真空、還元、あるいは中性の雰囲気中で合金成分の一部あるいは全部が溶融する温度まで加熱して砥粒をその配設箇所に金属によって化学的に固着し、台金線の切断加工方向の前面部に被削材の切り屑、冷却水を通すためのコイル状の溝が中空のコイル状構造物、あるいはゴム、プラスチック射出成形金型などにより構築され、さらにロープ状の芯線を前記台金線の内側空間にその全長にわたって挿入し、固定することを特徴とするワイヤソーの製造方法。Continuously kneaded and molded additives with powders mainly composed of copper alloy or nickel alloy, etc. on metal wire forming concave and convex shapes wound in a single or multiple cylindrical coil shape The active metal brazing material is applied or kneaded on the surface and inside, and a large number of abrasive grains are arranged on the surface and inside of the brazing material, and the whole is alloyed in a vacuum, reduced, or neutral atmosphere. Heat to a temperature at which some or all of the components are melted, and the abrasive grains are chemically fixed with metal at the locations where they are placed. A coil-shaped groove for passing through is formed by a hollow coil-shaped structure, or rubber, plastic injection mold, etc., and further inserts a rope-shaped core wire into the inner space of the base metal wire over its entire length and fixes it. Wa Manufacturing method of Yaso.
JP2002211792A 2002-06-17 2002-06-17 Wire saw and its manufacturing method Pending JP2004017276A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006314367A (en) * 2005-05-10 2006-11-24 Manii Kk Medical purpose saw

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006314367A (en) * 2005-05-10 2006-11-24 Manii Kk Medical purpose saw
JP4493547B2 (en) * 2005-05-10 2010-06-30 マニー株式会社 Medical saw

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