JP4579382B2 - Tube brush-like abrasive, deburring and polishing method - Google Patents
Tube brush-like abrasive, deburring and polishing method Download PDFInfo
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- JP4579382B2 JP4579382B2 JP2000213992A JP2000213992A JP4579382B2 JP 4579382 B2 JP4579382 B2 JP 4579382B2 JP 2000213992 A JP2000213992 A JP 2000213992A JP 2000213992 A JP2000213992 A JP 2000213992A JP 4579382 B2 JP4579382 B2 JP 4579382B2
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Description
【０００１】
【発明の属する技術分野】
本発明は、被処理物内面のバリ取り乃至は研磨能力の高いチューブブラシ状研磨材と、このチューブブラシ状研磨材を用いて行うバリ取り、研磨方法に関する。
【０００２】
【従来の技術】
ワイヤー線材、ナイロン線材、或いは、ナイロンに砥粒を付着乃至は含ませた線材を２本の芯線の間に芯線とほぼ直行して配列し芯線にねじりを加え線材を締め付け固定し、前記線材を該芯線を中心としてその円周方向に延設させてチューブブラシ状に形成した研磨材は、線材を支持基材に植設してブラシ状とした研磨材と異なり、細い形状に構成でき、フレキシブル性があり、製作が簡単で、比較的安価で、しかも、手でも機械に装着しても使用でき、パイプや加工穴等の比較的狭い被処理部に対しても簡単に挿入することができ、バリ取り、研磨等に広く使われている。
また、パイプ穴のバリ、例えば、クロス穴のバリについては、先端を細くした金属基材にダイヤモンドを電着した研磨材をロボットに装着して、クロス穴の一方から挿入し、穴がクロスして発生したバリ部分に軽く押しつけ、回転させながら穴にならうように研磨材を動かして除去したり、或いは、数本のワイヤーを蛇腹状に成型して両端を結束したブラシ状研磨材をクロス穴に押し込んで、軽く回転させることにより除去していた。
【０００３】
【発明が解決しようとする課題】
しかし、前記チューブブラシ状研磨材の場合は、ワイヤー線材を用いては高硬度のワークは研磨ができず、また、アルミニウム、マグネシウム、銅、黄銅等といった比較的軟らかいワークにはキズを付けてしまうという不具合があった。また、ナイロンに砥粒を付着乃至は含ませた線材は研磨力が低く、摩耗が早いといった不具合があった。
したがって、上記のような用途には、線材を使用したチューブブラシ状研磨材の形状は非常に適しているものの、バリ取り能力や、研磨能力が低かったり、研磨面にキズを付けたりするため、工業的に使用するには問題があり、高いバリ取り能力と研磨能力を有し、仕上げ面が良好な線材を使用したチューブブラシ状研磨材が要求されていた。
一方、アルミナ質長繊維をエポキシ樹脂等の樹脂マトリックスで硬化させて線状とした研磨材については、特開２０００―９４３４４号等に開示されているように、線材の先端部に高いバリ取り、研磨能力を有し、仕上げ面が良好なことはよく知られた事実であるが、アルミナ質長繊維製の線材を用いたチューブブラシ状研磨材は知られていなかった。その理由としては、チューブブラシ状研磨材は、通常、一定の長さの線材を、２本又は４本の芯線の間に芯線にほぼ直行させて配列し、芯線にねじりを加え、線材を強く締め付けて固定してチューブブラシ状に形成しているが、耐屈曲性が低いアルミナ質長繊維製線材は、芯線により締め付けられた箇所が折れてしまい、製作できなかったためである。
但し、特開平４―３３６９７５号等に開示されているようにアルミナ質長繊維線材の腰の強さ、補強を目的として、ガラス繊維、ポリアミド繊維等をフィラメント単位で混合するか、アルミナ質長繊維の束の外周を巻き付ける方法が提案されているが、フィラメント単位で均一に混合するのは生産上困難であり、アルミナ質長繊維の束の外周を巻き付ける方法は、研磨時に外周に巻き付けた繊維が剥がれて線材先端がバラケてしまい線材の腰が無くなり、研磨力が極端に低下するといった問題があった。
また、ダイヤモンドを電着した研磨材の場合は、研削力はあるものの研磨材が固いために返りバリが発生したり、穴バリに均一に当たらなかったりして、バリを取り残すといった不具合があった。また、数本のワイヤーを蛇腹状に成型し両端を結束したブラシの場合は、バリをこすり落としているだけのため、バリが返ってしまい、取り残すことが多く、やはり不具合があった。
したがって、本発明の目的は、高いバリ取り能力と研磨能力を有し、仕上げ面が良好なアルミナ質長繊維製チューブブラシ状研磨材と、そのチューブブラシ状研磨材を用いたワーク内面の容易なバリ取り乃至は研磨方法を提供しようとするものである。
【０００４】
【課題を解決するための手段】
本発明者等は、前記目的を達成すべく鋭意検討の結果、線材としてアルミナ質長繊維を樹脂マトリックスで結着した線材を用いたチューブブラシ状研磨材の作成にあたり、芯線との間に応力緩衝材を介挿させた状態で線材を固定することにより、線材が芯線との間で強く締め付けられた際に折れたりすることのないチューブブラシ状研磨材として構成でき、そのチューブブラシ状研磨材を用いたワーク内面の容易なバリ取り乃至は研磨方法を提供できることを知見した。
本発明のチューブブラシ状研磨材は、かかる知見に基づき成されたもので、請求項１記載の通り、線材を２本の芯線の間に芯線とほぼ直行して配列し芯線にねじりを加え線材を締め付け固定し、前記線材を該芯線を中心としてその円周方向に延設させてなるチューブブラシ状研磨材であって、前記線材としてアルミナ質長繊維を樹脂マトリックスで結着した線材を用い、前記芯線との間に応力緩衝材を介挿させた状態で固定したことを特徴とする。
また、請求項２記載のチューブブラシ状研磨材は、前記応力緩衝材がクロロプレンゴム、ニトリルゴム、ブタジエンゴム、スチレン−ブタジエンゴム、ブチルゴム、エチレン−プロピレンゴム、フッ素ゴム、シリコーンゴム、或いは、ウレタンゴムよりなることを特徴とする。
また、請求項３記載のチューブブラシ状研磨材は、請求項１又は２の何れかに記載のチューブブラシ状研磨材において、前記樹脂マトリックスに中空球状ビーズを含ませたことを特徴とする。
また、請求項４記載のチューブブラシ状研磨材は、請求項１又は２の何れかに記載のチューブブラシ状研磨材において、前記樹脂マトリックスに無機質球状中実ビーズを含ませたことを特徴とする。
また、請求項５記載のチューブブラシ状研磨材は、請求項１乃至４の何れかに記載のチューブブラシ状研磨材において、前記樹脂マトリックスに砥粒を含ませたことを特徴とする。
また、本発明のバリ取り、研磨方法は、請求項６記載の通り、請求項１乃至５の何れかに記載の研磨材を用いて、バリ取り乃至は研磨を行うことを特徴とする。
【０００５】
前記構成においては、アルミナ質長繊維を樹脂マトリックスで結着された線材は、芯線との間で強く締め付けられた際にも、折れたりせずに固定状態が維持され、高いバリ取り能力と研磨能力をもつチューブブラシ状研磨材として構成され、さらに、そのチューブブラシ状研磨材を用いて容易にワーク内面のバリ取り乃至は研磨が行える。即ち、アルミナ質長繊維を樹脂マトリックスで結着した線材と芯線の間に応力緩衝材を挿入することにより、高いバリ取り能力と研磨能力をもち、容易にワーク内面のバリ取り並びに研磨が行えるチューブブラシ状研磨材が得られるものである。
【０００６】
前記理由としては、チューブブラシ状研磨材を製作する過程において、アルミナ質長繊維を樹脂マトリックスで結着した線材は耐屈曲性が低いため、線材と芯線の間に応力緩衝材を挿入して線材にかかる応力を低下させたことにより、芯線との間で強く締め付けられた際に、折れたりせずに固定できるためチューブブラシ状研磨材の製作が可能となったものである。
さらに、アルミナ質長繊維を樹脂マトリックスで結着した線材先端部には高いバリ取り、研磨能力が有るため、チューブブラシ状研磨材に成形されたことにより、パイプ又は加工穴内部等の比較的狭い部分に挿入して、容易にバリ取り、研磨性能を発揮することが可能となった。
【０００７】
【発明の実施の形態】
本発明のチューブブラシ状研磨材の特徴は、耐屈曲性の低いアルミナ質長繊維と樹脂マトリックスとからなる線材をチューブブラシ状研磨材にすることを可能にしたことにより、研磨材の形状は太くも細くもでき、線材は柔らかくしなり、線材の先端には高い研磨性が生じ、その形状から機械加工後等のワーク内面のバリ取り、研磨が容易かつ確実に行なえるようになった。
【０００８】
具体的には、アルミナ質長繊維と樹脂マトリックスとからなる線材と芯線の間に応力緩衝材を挿入し、芯線で挟んで固定してチューブブラシ状研磨材とした。
【０００９】
こうして製作したチューブブラシ状研磨材は、特に、ワークにクロス穴加工をした際にでるクロス穴のバリ取りや、パイプの内面研磨等に適しており、使用する線材の太さや長さ、芯線の太さや、長さにより、チューブブラシ状研磨材は大、小、太、細等サイズを比較的自由に製作でき、大径の穴から小径の穴まで、また、その穴が曲がっていても奥深く挿入することができる。
【００１０】
また、バリが大きかったり、研磨面の要求面粗度は粗くとも効率を求められる場合には、アルミナ質長繊維をエポキシ樹脂のような比較的固い樹脂マトリックスを用いて線材とし、クッション材を芯線との間に挟んで固定すればよい。
【００１１】
また、バリが小さかったり、研磨面の要求面粗度が細かい場合には、ゴム弾性の樹脂マトリックスを用いればよい。
また、上記応力緩衝材を挿入することに、線材の横断面を扁平状としたり、ゴム弾性の樹脂マトリックスを用いたり、耐屈曲性の高い長繊維又はスフ糸とを組み合わせて組み紐体に編成したりすることを併用してもよい。
【００１２】
また、アルミニウム、マグネシウム、銅、黄銅といった比較的柔らかいものを対象としたバリ取り、研磨を行う場合には、線材に中空、中実ビーズ（球状）を入れれば目詰りを防止でき、中空ビーズ（球状）を入れた場合は、線材が比較的しなやかで柔らかく、中実ビーズ（球状）を入れた場合は線材に腰がでて、研磨性も高い。
【００１３】
また、ＨＲＣ５０を越える比較的固いものを対象としたバリ取り、研磨を行う場合には細線材にダイヤモンド、炭化ホウ素といった砥粒を含ませればよい。
【００１４】
【実施例】
（実施例１）
繊維径１０μｍのモノフィラメント１０００本からなるアルミナ質長繊維（Ａｌ ２ Ｏ ３ ８５重量％、ＳｉＯ２ １５重量％）のロービングにエポキシ樹脂（エピコート８２８ 油化シェルエポキシ）１００重量部と、これに三フッ化ホウ素モノエチルアミン（ステラケミファ）３重量部を加え、よく攪拌混合したものを、ローラーにより連続的に含浸処理しながらワインダー装置でボビンに巻き取った。
この巻き取った含浸ストランドのボビンをクリールに取り付け、引き出した含浸ストランドを約３００℃に加熱された雰囲気の長さ２ｍの硬化炉を毎分１．６ｍの速度で連続的に通過させて細線状に硬化した後、巻き取り装置に巻き取り、それを長さ３０ｍｍに切りそろえたものを線材とした。
さらに、２本の芯線と芯線とほぼ直行して配列する線材の間に、シリコーンゴムシート（厚さ０．５ｍｍ、幅３ｍｍ、長さ１００ｍｍ）を芯線に沿わして挿入し、芯線にねじりを加え、シリコーンゴムシートを介して線材を強く締め付け固定して、図１に示すチューブブラシ状研磨材とした。尚、図２は芯線にねじりを加える前の状態を示すもので、図中１は線材、２は応力緩和材、１０は芯材を示す。
【００１５】
（比較例１）
ワイヤーを線材としたチューブブラシ状研磨材（高島産業）を用意して比較例１の研磨材とした。
【００１６】
（比較例２）
ナイロンを線材としたチューブブラシ状研磨材（高島産業）を用意して比較例２の研磨材とした。
【００１７】
（比較例３）
砥粒ＷＡ＃４００を含ませたナイロンを線材としたチューブブラシ状研磨材（高島産業）を用意して比較例３の研磨材とした。
【００１８】
下記表１は、上記実施例１及び比較例１、２、３で得られた各チューブブラシ状研磨材につき、アルミニウムのクロス穴加工後のバリ取り試験を行い、その結果を示したものである。すなわち、クロス穴直径よりやや直径が大きいチューブブラシ状研磨材をクロス穴一方から手で挿入し、左右に半回転ずつ回転させた後、引き抜き、クロス穴に発生したバリの除去状態をマイクロスコープで確認したものである。
その結果を表１に示した。
【００１９】
【表1】
表２は、上記実施例１及び比較例１、２、３で得られた各チューブブラシ状研磨材につき、ステンレス製パイプ（研磨前面粗さＲａ＝１．３０μｍ、Ｒｍａｘ＝１１．０μｍ）の内面研磨を行った際の面粗さを示したものある。すなわち、パイプ内径よりやや直径が大きいチューブブラシ状研磨材を回転工具に装着し、パイプ内部に挿入して１０００ｒ．ｐ．ｍにて回転させ研磨した後、研磨部を面粗さ計で測定したものである。
【００２１】
【表２】
上記表１及び表２から明らかなように、本発明実施例品のチューブブラシ状研磨材は、比較例品の研磨材に比べ、極めてバリ取り、研磨性に優れていることが確認できた。
【００２３】
【発明の効果】
このように、本発明によれば、アルミナ質長繊維を樹脂マトリックスで線材とした、高いバリ取り能力と研磨能力を有し、仕上げ面の良好なチューブブラシ状研磨材が製作され、そのチューブブラシ状研磨材を用いて容易にワーク内面のバリ取り、並びに研磨が行える方法が提供される。
【図面の簡単な説明】
【図１】 本発明チューブブラシ状研磨材の一実施例の斜視図
【図２】 上記実施例の製造工程を示す要部拡大断面図
【図３】 前記チューブ状研磨材の線材の拡大斜視図
【符号の説明】
１ 線材
２ 応力緩和材
３ 芯材
１０ 芯線[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a tube brush-like abrasive having high deburring or polishing ability on the inner surface of an object to be processed, and a deburring and polishing method performed using this tube brush-like abrasive.
[0002]
[Prior art]
Wire wire, nylon wire, or wire made of nylon with abrasive grains attached or contained, are arranged almost perpendicular to the core wire between the two core wires, twist the core wire, and fasten and fix the wire. The abrasive formed in the tube brush shape by extending in the circumferential direction around the core wire, unlike the abrasive material in which the wire material is planted on the support base and made into a brush shape, can be configured in a thin shape, flexible It is easy to manufacture, relatively inexpensive, can be used by hand or mounted on a machine, and can be easily inserted into relatively narrow parts to be processed such as pipes and machined holes. Widely used for deburring, polishing, etc.
Also, for pipe hole burrs, for example, cross hole burrs, an abrasive material with electrodeposited diamond on a metal base with a thin tip is attached to the robot and inserted from one of the cross holes. Press lightly against the burr generated and move the abrasive so that it follows the hole while rotating, or cross a brush-like abrasive that has several wires molded into a bellows and bound at both ends It was removed by pushing it into the hole and rotating it lightly.
[0003]
[Problems to be solved by the invention]
However, in the case of the tube brush-like abrasive, a high-hardness workpiece cannot be polished using a wire wire, and a relatively soft workpiece such as aluminum, magnesium, copper, brass or the like is scratched. There was a problem that. Further, the wire material in which abrasive grains are attached to or contained in nylon has a problem that it has low polishing power and wears quickly.
Therefore, although the shape of the tube brush-like abrasive using the wire is very suitable for the above-mentioned applications, the deburring ability, the polishing ability is low, and the polished surface is scratched. There is a problem in industrial use, and there has been a demand for a tube brush-like abrasive using a wire having a high deburring ability and polishing ability and a good finished surface.
On the other hand, for abrasives that have been made by linearly curing alumina long fibers with a resin matrix such as an epoxy resin, as disclosed in JP-A-2000-94344, etc., high deburring at the tip of the wire, Although it is a well-known fact that it has a polishing ability and a finished surface is good, a tube brush-like abrasive using a wire made of alumina long fiber has not been known. The reason for this is that tube brush-like abrasives usually have a fixed length of wire arranged between two or four core wires so as to be almost perpendicular to the core wire, twist the core wire, and strengthen the wire. This is because the alumina long fiber wire rod having a low bending resistance is broken and the portion clamped by the core wire is broken and cannot be manufactured.
However, as disclosed in JP-A-4-336975, etc., glass fibers, polyamide fibers, etc. are mixed in units of filaments for the purpose of reinforcing the strength and reinforcement of the alumina long fiber wire, or the alumina long fibers Although a method of winding the outer periphery of a bundle of fibers has been proposed, it is difficult in production to mix uniformly in units of filaments, and the method of winding the outer periphery of a bundle of long alumina fibers is that the fibers wound around the outer periphery during polishing are As a result, the tip of the wire was peeled off and the wire rod was lost, resulting in a problem that the polishing power was extremely reduced.
Also, in the case of abrasives electrodeposited with diamond, there was a problem that the abrasives were hard, but the abrasives were hard and returned burrs, or they did not hit the hole burrs uniformly and left burrs. . In addition, in the case of a brush in which several wires are formed into a bellows shape and bound at both ends, the burr is simply scraped off, so the burr is returned and often left behind, which still has problems.
Accordingly, an object of the present invention is to provide a tube brush-like abrasive made of alumina long fiber having a high deburring ability and polishing ability and having a good finished surface, and an easy work inner surface using the tube brush-like abrasive. An object of the present invention is to provide a deburring or polishing method.
[0004]
[Means for Solving the Problems]
As a result of intensive studies to achieve the above object, the present inventors, as a wire rod, produced a tube brush-like abrasive using a wire material in which an alumina long fiber is bound with a resin matrix. By fixing the wire in the state where the material is inserted, it can be configured as a tube brush-like abrasive that does not break when the wire is strongly tightened between the core wire. It has been found that an easy deburring or polishing method can be provided for the used work inner surface.
The tube brush-like abrasive of the present invention is based on such knowledge. As described in
The tube brush-like abrasive according to
A tube brush-like abrasive according to claim 3 is the tube brush-like abrasive according to claim 1 or 2 , wherein hollow hollow beads are included in the resin matrix.
The tube brush-like abrasive according to claim 4 is the tube brush-like abrasive according to claim 1 or 2 , wherein the resin matrix contains inorganic spherical solid beads. .
A tube brush-like abrasive according to claim 5 is the tube brush-like abrasive according to any one of
Further, the deburring and polishing method of the present invention is characterized in that, as described in claim 6 , deburring or polishing is performed using the abrasive according to any one of
[0005]
In the above configuration, the wire material in which the alumina long fibers are bound with the resin matrix is maintained in a fixed state without being broken even when strongly tightened with the core wire, and has high deburring ability and polishing. It is configured as a tube brush-like abrasive having a capability, and furthermore, the inner surface of the workpiece can be easily deburred or polished using the tube brush-like abrasive. That is, a tube that has high deburring ability and polishing ability and can easily deburr and polish the inner surface of the workpiece by inserting a stress buffering material between the core wire and the wire material in which the alumina fibers are bound with the resin matrix. A brush-like abrasive is obtained.
[0006]
The reason for this is that, in the process of manufacturing the tube brush-like abrasive, the wire material in which the alumina long fibers are bound with the resin matrix has low bending resistance, so a stress buffer material is inserted between the wire material and the core wire. By reducing the stress applied to the tube, the tube brush-like abrasive can be produced because it can be fixed without being broken when it is strongly tightened with the core wire.
In addition, the wire rod tip with the alumina long fibers bound by the resin matrix has a high deburring and polishing ability. It was possible to easily remove the burrs and insert the polishing performance.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
The feature of the tube brush-like abrasive according to the present invention is that the wire made of alumina long fibers having low bending resistance and a resin matrix can be made into a tube brush-like abrasive, so that the shape of the abrasive is thick. The wire rod becomes soft and the tip of the wire rod is highly polished. From its shape, the inner surface of the workpiece can be deburred and polished easily and reliably.
[0008]
Specifically, a stress buffer material was inserted between a wire consisting of an alumina long fiber and a resin matrix and a core wire, and fixed by being sandwiched between the core wires to obtain a tube brush-like abrasive.
[ 0009 ]
The tube brush-like abrasive produced in this way is particularly suitable for deburring the cross holes that occur when cross holes are machined in the workpiece, polishing the inner surface of pipes, etc. The thickness and length of the wire used, the core wire Depending on the thickness and length, tube brush-like abrasives can be made relatively freely in sizes such as large, small, thick, thin, etc., from large diameter holes to small diameter holes, and even if the holes are bent deeply Can be inserted.
[ 0010 ]
Also, if the burr is large or the required surface roughness of the polished surface is rough but efficiency is required, the alumina long fiber is used as a wire using a relatively hard resin matrix such as epoxy resin, and the cushion material is used as the core wire. What is necessary is just to pinch and fix between .
[ 0011 ]
If the burr is small or the required surface roughness of the polished surface is fine, a rubber elastic resin matrix may be used.
In addition, by inserting the stress buffer material, the cross section of the wire is flattened, a rubber elastic resin matrix is used, or a combination of long fiber or suf yarn having high bending resistance is knitted into a braided body. Or may be used together.
[0012]
In addition, when deburring and polishing for relatively soft materials such as aluminum, magnesium, copper and brass, clogging can be prevented by inserting hollow and solid beads (spherical) into the wire. When a spherical shape is inserted, the wire is relatively soft and soft, and when a solid bead (spherical shape) is inserted, the wire is stiff and highly abrasive.
[ 0013 ]
Further, when deburring and polishing for a relatively hard material exceeding the HRC50, abrasives such as diamond and boron carbide may be included in the fine wire.
[ 0014 ]
【Example】
Example 1
100 parts by weight of epoxy resin (Epicoat 828 oiled shell epoxy) is roving on alumina long fibers (85% by weight of Al 2 O 3 , 15% by weight of SiO 2 ) composed of 1000 monofilaments having a fiber diameter of 10 μm, and three Boron bromide monoethylamine (Stella Chemifa) 3 parts by weight was added and well stirred and mixed, and wound around a bobbin with a winder device while continuously impregnating with a roller.
The bobbin of the wound impregnated strand is attached to the creel, and the drawn impregnated strand is continuously passed through a curing furnace having a length of 2 m in an atmosphere heated to about 300 ° C. at a speed of 1.6 m / min. After being cured into a wire, the wire was taken up by a take-up device and cut into a length of 30 mm.
Furthermore, a silicone rubber sheet (thickness 0.5 mm, width 3 mm, length 100 mm) is inserted along the core wire between the two core wires and the wires arranged almost perpendicular to the core wire, and the core wire is twisted. In addition, the wire rod was strongly clamped and fixed through a silicone rubber sheet to obtain a tube brush-like abrasive shown in FIG. FIG. 2 shows a state before twisting the core wire, in which 1 denotes a wire, 2 denotes a stress relaxation material, and 10 denotes a core.
[ 0015 ]
(Comparative Example 1)
A tube brush-like abrasive (Takashima Sangyo) using wire as a wire was prepared and used as the abrasive of Comparative Example 1.
[ 0016 ]
(Comparative Example 2)
A tube brush-like abrasive (Takashima Sangyo) using nylon as a wire was prepared and used as the abrasive of Comparative Example 2.
[ 0017 ]
(Comparative Example 3)
A tube brush-like abrasive (Takashima Sangyo) using nylon containing abrasive grains WA # 400 as a wire was prepared and used as the abrasive of Comparative Example 3.
[ 0018 ]
Table 1 below shows the results of deburring tests after cross-drilling of aluminum on each tube brush-like abrasive obtained in Example 1 and Comparative Examples 1, 2, and 3. . In other words, a tube brush-like abrasive with a diameter slightly larger than the diameter of the cross hole is inserted by hand from one side of the cross hole, rotated by half a turn to the left and right, then pulled out, and the burr generated in the cross hole is removed with a microscope. It has been confirmed.
The results are shown in Table 1.
[ 0019 ]
【table 1】
Table 2 shows the inner surfaces of stainless steel pipes (polishing front surface roughness Ra = 1.30 μm, Rmax = 11.0 μm) for each tube brush-like abrasive obtained in Example 1 and Comparative Examples 1, 2, and 3. It shows the surface roughness when polishing. That is, a tube brush-like abrasive having a diameter slightly larger than the inner diameter of the pipe is attached to the rotary tool, and inserted into the pipe to obtain 1000 r. p. After polishing by rotating at m, the polished part was measured with a surface roughness meter.
[ 0021 ]
[Table 2]
As apparent from Tables 1 and 2 above, it was confirmed that the tube brush-like abrasive of the product of the present invention was extremely excellent in deburring and polishing as compared with the abrasive of the comparative example.
[ 0023 ]
【The invention's effect】
As described above, according to the present invention, a tube brush-like abrasive having a high deburring ability and a polishing ability and having a good finished surface, in which an alumina long fiber is made of a resin matrix, is manufactured. Provided is a method capable of easily deburring and polishing an inner surface of a workpiece using a shaped abrasive.
[Brief description of the drawings]
FIG. 1 is a perspective view of an embodiment of the tube brush-like abrasive of the present invention. FIG. 2 is an enlarged cross-sectional view of a main part showing the manufacturing process of the embodiment. FIG. 3 is an enlarged perspective view of a wire of the tube-like abrasive. [Explanation of symbols]
1
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| JP2000213992A JP4579382B2 (en) | 2000-07-14 | 2000-07-14 | Tube brush-like abrasive, deburring and polishing method |
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| Application Number | Priority Date | Filing Date | Title |
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| JP2000213992A JP4579382B2 (en) | 2000-07-14 | 2000-07-14 | Tube brush-like abrasive, deburring and polishing method |
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| Publication Number | Publication Date |
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| JP2002028873A JP2002028873A (en) | 2002-01-29 |
| JP4579382B2 true JP4579382B2 (en) | 2010-11-10 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2003236738A (en) * | 2002-02-14 | 2003-08-26 | Yuichiro Niizaki | Deburring device |
| JP4869655B2 (en) * | 2005-07-08 | 2012-02-08 | 株式会社コーワ | Torsion brush |
| JP4825017B2 (en) * | 2006-02-23 | 2011-11-30 | 博保 皆吉 | Cutting method |
| JP6663067B1 (en) * | 2019-06-25 | 2020-03-11 | 大阪サニタリー株式会社 | Metal pipe inner surface polishing equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04336975A (en) * | 1991-05-15 | 1992-11-25 | Sumitomo Chem Co Ltd | Grinding and polishing brush |
| JPH07285056A (en) * | 1994-04-19 | 1995-10-31 | Jatco Corp | Method and tool for deburring |
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2000
- 2000-07-14 JP JP2000213992A patent/JP4579382B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04336975A (en) * | 1991-05-15 | 1992-11-25 | Sumitomo Chem Co Ltd | Grinding and polishing brush |
| JPH07285056A (en) * | 1994-04-19 | 1995-10-31 | Jatco Corp | Method and tool for deburring |
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| JP2002028873A (en) | 2002-01-29 |
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