JPH0699357A - Whetstone and manufacturing method thereof - Google Patents
Whetstone and manufacturing method thereofInfo
- Publication number
- JPH0699357A JPH0699357A JP25012792A JP25012792A JPH0699357A JP H0699357 A JPH0699357 A JP H0699357A JP 25012792 A JP25012792 A JP 25012792A JP 25012792 A JP25012792 A JP 25012792A JP H0699357 A JPH0699357 A JP H0699357A
- Authority
- JP
- Japan
- Prior art keywords
- abrasive grain
- grain layer
- base metal
- layer
- resin adhesive
- 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.)
- Granted
Links
Landscapes
- Polishing Bodies And Polishing Tools (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、割れにくくかつ均一な
砥粒層を有する砥石及びその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grindstone which is hard to break and has a uniform abrasive grain layer, and a method for producing the same.
【０００２】[0002]
【従来の技術】従来より研削用工具としての砥石とし
て、台金の外周面に、ダイヤモンドやｃ−ＢＮの超砥粒
を結合剤（ボンド）で保持した砥粒層を設けたものが一
般に使用されている。2. Description of the Related Art Conventionally, as a grindstone as a grinding tool, one having an abrasive grain layer in which superabrasive grains of diamond or c-BN are held by a bond is generally used on the outer peripheral surface of a base metal. Has been done.
【０００３】このような砥石の結合剤には、樹脂を主体
としたレジノイドボンド、銅、錫、タングステンカーバ
イド、鉄、ニッケル等の合金からなるメタルボンド、ガ
ラス質の無機結合剤を主体としたビトリファイドボンド
等が用いられる。As a binder for such a grindstone, a resinoid bond mainly composed of a resin, a metal bond composed of an alloy of copper, tin, tungsten carbide, iron, nickel or the like, and a vitrified mainly composed of a glassy inorganic binder are used. A bond or the like is used.
【０００４】上記砥石は、一般に、粒径が約５０〜１５
０μｍのダイヤモンド若しくはｃ−ＢＮ超砥粒と、ボン
ドとなる原料粉とを所定量台金に型込めして、加熱しつ
つ一方向からプレス成形して形成される。The above-mentioned grindstone generally has a particle size of about 50-15.
A diamond or c-BN superabrasive grain of 0 μm and a raw material powder to be a bond are molded in a predetermined amount in a base metal and press-formed from one direction while heating.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、上述し
た方法で一方向からプレス成形して砥粒層を形成する場
合は、均一な圧縮が困難で、砥粒層を台金の周りに均一
な密度で形成できないことがあった。However, when the abrasive grain layer is formed by press molding from one direction by the above-mentioned method, uniform compression is difficult, and the abrasive grain layer is uniformly distributed around the base metal. There was a case that could not be formed.
【０００６】また、台金と砥粒層とは膨張係数が異なる
ため、加熱後の冷却時に応力が残留し、砥粒層の割れの
原因になることがあった。Further, since the base metal and the abrasive grain layer have different expansion coefficients, stress may remain during cooling after heating, causing cracking of the abrasive grain layer.
【０００７】本発明は上記課題に鑑みてなされたもの
で、割れにくくかつ均一な砥粒層を有する砥石及びその
製造方法を提供することを目的とする。The present invention has been made in view of the above problems, and an object of the present invention is to provide a grindstone which is hard to crack and has a uniform abrasive grain layer, and a manufacturing method thereof.
【０００８】[0008]
【課題を解決するための手段】本発明の砥石では、砥粒
層を、発泡剤を含んだ樹脂接着層を介して台金に固定し
たことを課題解決の手段とした。In the grindstone of the present invention, the means for solving the problem is that the abrasive grain layer is fixed to the base metal through the resin adhesive layer containing the foaming agent.
【０００９】上記砥石は、台金と砥粒層とを隙間を空け
て同心状に配置した後、発泡剤を含んだ樹脂を接着剤と
して上記隙間に均一に充填し、接着面に圧力を印加しつ
つ上記砥粒層を台金に固定することによって製造され
る。In the above-mentioned grindstone, the base metal and the abrasive grain layer are arranged concentrically with a gap therebetween, and then the gap is uniformly filled with a resin containing a foaming agent as an adhesive, and pressure is applied to the adhesive surface. On the other hand, it is manufactured by fixing the above-mentioned abrasive grain layer to a base metal.
【００１０】上記樹脂としては、ポリウレタン、ポリエ
チレン等が好ましく、発泡剤としては、温度分解型であ
るアゾジカルボンアミド（ＡＤＣＡ）等が望ましい。ま
た、樹脂接着層全体における発泡割合が５０％程度にな
るように、樹脂内に発泡剤を含むようにすることが好ま
しい。The resin is preferably polyurethane, polyethylene or the like, and the foaming agent is preferably temperature-decomposable azodicarbonamide (ADCA) or the like. Further, it is preferable that a foaming agent is included in the resin so that the foaming ratio in the entire resin adhesive layer is about 50%.
【００１１】なお、上述した圧力の印加は、接着完了ま
で行えば良く、固定後すぐに解除しても良い。The above-mentioned application of pressure may be carried out until the bonding is completed, and may be released immediately after fixing.
【００１２】[0012]
【作用】上記構成によれば、樹脂接着層内の発泡により
台金と砥粒層との距離が平均化されて台金と砥粒層との
軸心を合わせ易く、台金の周りに砥粒層を均一な密度で
形成することができる。According to the above construction, the distance between the base metal and the abrasive grain layer is averaged by the foaming in the resin adhesive layer, the axis of the base metal and the abrasive grain layer can be easily aligned, and the periphery of the base metal is abraded. The grain layer can be formed with a uniform density.
【００１３】また、台金と砥粒層との膨張係数の差に起
因する応力を、樹脂接着層によって吸収することができ
るので、砥粒層の割れを防止することができる。Further, since the stress caused by the difference in expansion coefficient between the base metal and the abrasive grain layer can be absorbed by the resin adhesive layer, cracking of the abrasive grain layer can be prevented.
【００１４】さらに、研削時に発生する振動等が樹脂接
着層により吸収されるため、研削時における騒音やチッ
ピングを低減することができる。Further, since vibrations and the like generated during grinding are absorbed by the resin adhesive layer, noise and chipping during grinding can be reduced.
【００１５】[0015]
【実施例】図１に、本発明の砥石の一実施例について示
す。この砥石では、ステンレス製の台金１の外周面に、
発泡性樹脂接着層３を介して円環状の砥粒層２が設けら
れている。EXAMPLE FIG. 1 shows an example of the grindstone of the present invention. In this grindstone, on the outer peripheral surface of the stainless steel base metal 1,
An annular abrasive grain layer 2 is provided via a foamable resin adhesive layer 3.
【００１６】上記砥粒層２は、ダイヤモンド又はｃ−Ｂ
Ｎからなる超砥粒４をフェノールからなる樹脂結合相５
に分散させたものが用いられ、上記砥粒層２の厚さは２
〜５ｍｍに形成されている。The abrasive grain layer 2 is made of diamond or c-B.
Superabrasive grains 4 made of N and resin bonded phase 5 made of phenol
The abrasive grain layer 2 has a thickness of 2
It is formed to be ~ 5 mm.
【００１７】上記発泡性樹脂接着層３は、ポリエチレン
にアゾジカルボンアミド（ＡＤＣＡ）を５％含んだもの
が使用され、その厚さは０．１〜０．５ｍｍとされてい
る。The foamable resin adhesive layer 3 is made of polyethylene containing 5% of azodicarbonamide (ADCA) and has a thickness of 0.1 to 0.5 mm.
【００１８】このような砥石は以下のようにして製造す
ることができる。まず、予め、台金１と、ダイヤモンド
又はｃ−ＢＮからなる超砥粒４をフェノールからなる樹
脂結合相５に分散させて全体として円環状に形成した砥
粒層２とを所定間隔隙間を空けて同心状に配置する。次
いで、発泡剤を含んだポリエチレン樹脂を上記隙間に均
一に充填し、１５０℃で接着面に圧力を印加し発泡させ
つつ発泡性樹脂接着層３を形成し、上記砥粒層２を上記
台金１に固定する。接着が完了した後、圧力を解除して
上記の砥石を得る事ができる。Such a grindstone can be manufactured as follows. First, a base metal 1 and an abrasive grain layer 2 formed by dispersing superabrasive grains 4 made of diamond or c-BN in a resin binder phase 5 made of phenol to form an annular shape as a whole are preliminarily provided with a predetermined gap. And arrange them concentrically. Next, a polyethylene resin containing a foaming agent is uniformly filled in the gap, and a foamable resin adhesive layer 3 is formed while applying pressure to the adhesive surface at 150 ° C. to foam, and the abrasive grain layer 2 is used as the base metal. Fixed to 1. After the bonding is completed, the pressure can be released to obtain the above grindstone.
【００１９】このようにして砥石を形成すると、樹脂接
着層３内の発泡により台金１と砥粒層２との距離が平均
化されて台金１と砥粒層２との軸心を合わせ易く、台金
１の周りに砥粒層２を均一な密度でかつ低コストで形成
することができる。When the grindstone is formed in this way, the distance between the base metal 1 and the abrasive grain layer 2 is averaged by the foaming in the resin adhesive layer 3, and the axes of the base metal 1 and the abrasive grain layer 2 are aligned. The abrasive grain layer 2 can be easily formed around the base metal 1 at a uniform density and at low cost.
【００２０】また、このようにして形成された砥石は、
台金１と砥粒層２との膨張係数の差に起因する応力を、
発泡性樹脂接着層３によって吸収することができるの
で、砥粒層２の割れを防止することができる。さらに発
泡性樹脂接着層３の存在により、研削時に生じる振動を
吸収することができ、研削時における騒音やチッピング
を低減することができる。Further, the grindstone thus formed is
The stress caused by the difference in expansion coefficient between the base metal 1 and the abrasive grain layer 2 is
Since it can be absorbed by the foamable resin adhesive layer 3, the abrasive grain layer 2 can be prevented from cracking. Further, due to the presence of the foamable resin adhesive layer 3, vibrations generated during grinding can be absorbed, and noise and chipping during grinding can be reduced.
【００２１】[0021]
【発明の効果】以上説明したように請求項１記載の砥石
では、砥粒層を、発泡剤を含んだ樹脂接着層を介して台
金に固定したので、台金と砥粒層との膨張係数の差に起
因する応力を、樹脂接着層によって吸収することができ
るため、砥粒層の割れを防止することができる。As described above, in the grindstone according to the first aspect, the abrasive grain layer is fixed to the base metal through the resin adhesive layer containing the foaming agent, so that the expansion of the base metal and the abrasive grain layer. Since the stress caused by the difference in the coefficient can be absorbed by the resin adhesive layer, cracking of the abrasive grain layer can be prevented.
【００２２】また、研削時に発生する振動等が樹脂接着
層により吸収されるため、研削時における騒音やチッピ
ングを低減することができる。Further, since vibration and the like generated during grinding are absorbed by the resin adhesive layer, noise and chipping during grinding can be reduced.
【００２３】請求項２記載の砥石の製造方法では、台金
と砥粒層とを隙間を空けて同心状に配置した後、発泡剤
を含んだ樹脂を接着剤として上記隙間に均一に充填し、
接着面に圧力を印加しつつ上記砥粒層を台金に固定した
ので、樹脂接着層内の発泡により台金と砥粒層との距離
が平均化されて台金と砥粒層との軸心を合わせ易く、台
金の周りに砥粒層を均一な密度で形成することができ
る。In the method of manufacturing a grindstone according to a second aspect of the present invention, after the base metal and the abrasive grain layer are concentrically arranged with a gap, a resin containing a foaming agent is uniformly filled in the gap as an adhesive. ,
Since the abrasive grain layer was fixed to the base metal while applying pressure to the adhesive surface, the distance between the base metal and the abrasive grain layer was averaged by foaming in the resin adhesive layer, and the axis of the base metal and the abrasive grain layer was averaged. It is easy to align the core, and the abrasive grain layer can be formed around the base metal with a uniform density.
【００２４】従って請求項２記載の砥石の製造方法によ
れば、従来のプレス成形する方法に比べて高い製造効率
でかつ低コストで砥石を製造することができる。Therefore, according to the method for manufacturing a grindstone of the second aspect, it is possible to manufacture the grindstone with higher manufacturing efficiency and at lower cost than the conventional press molding method.
【図１】本発明のメタルボンド砥石の一実施例を示す断
面図である。FIG. 1 is a sectional view showing an embodiment of a metal bond grindstone of the present invention.
１ 台金 ２ 砥粒層 ３ 発泡性樹脂接着層（発泡剤を含んだ樹脂接着層） 1 base metal 2 abrasive grain layer 3 foamable resin adhesive layer (resin adhesive layer containing a foaming agent)
Claims (2)
砥石において、上記砥粒層が、発泡剤を含んだ樹脂接着
層を介して台金に固定されていることを特徴とする砥
石。1. A grindstone in which an annular abrasive grain layer is provided on an outer peripheral surface of a base metal, wherein the abrasive grain layer is fixed to the base metal via a resin adhesive layer containing a foaming agent. Whetstone
配置した後、発泡剤を含んだ樹脂を接着剤として上記隙
間に均一に充填し、接着面に圧力を印加しつつ上記砥粒
層を台金に固定することを特徴とする砥石の製造方法。2. A base metal and an abrasive grain layer are arranged concentrically with a gap therebetween, and then a resin containing a foaming agent is uniformly filled in the gap as an adhesive, while applying pressure to the adhesive surface. A method for manufacturing a grindstone, comprising fixing the abrasive grain layer to a base metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4250127A JP3018775B2 (en) | 1992-09-18 | 1992-09-18 | Whetstone and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4250127A JP3018775B2 (en) | 1992-09-18 | 1992-09-18 | Whetstone and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0699357A true JPH0699357A (en) | 1994-04-12 |
| JP3018775B2 JP3018775B2 (en) | 2000-03-13 |
Family
ID=17203231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4250127A Expired - Lifetime JP3018775B2 (en) | 1992-09-18 | 1992-09-18 | Whetstone and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3018775B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003159654A (en) * | 2001-11-21 | 2003-06-03 | Noritake Co Ltd | Method for manufacturing grinding grind stone of segment type |
| JP2004299019A (en) * | 2003-03-31 | 2004-10-28 | Noritake Co Ltd | Segment type super abrasive grinding wheel |
| WO2008044408A1 (en) * | 2006-10-06 | 2008-04-17 | Nippon Electric Glass Co., Ltd. | Grindstone |
| JP5881802B1 (en) * | 2014-09-30 | 2016-03-09 | 長春石油化學股▲分▼有限公司 | Buffer wheel and method of manufacturing buffer wheel |
| CN107984401A (en) * | 2017-12-29 | 2018-05-04 | 华侨大学 | A kind of skive with seedpod of the lotus structure and preparation method thereof |
| WO2026023514A1 (en) * | 2024-07-25 | 2026-01-29 | 株式会社アライドマテリアル | Superabrasive cutting wheel |
-
1992
- 1992-09-18 JP JP4250127A patent/JP3018775B2/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003159654A (en) * | 2001-11-21 | 2003-06-03 | Noritake Co Ltd | Method for manufacturing grinding grind stone of segment type |
| JP2004299019A (en) * | 2003-03-31 | 2004-10-28 | Noritake Co Ltd | Segment type super abrasive grinding wheel |
| WO2008044408A1 (en) * | 2006-10-06 | 2008-04-17 | Nippon Electric Glass Co., Ltd. | Grindstone |
| JP2008093744A (en) * | 2006-10-06 | 2008-04-24 | Nippon Electric Glass Co Ltd | Rotary grinding wheel |
| KR101429044B1 (en) * | 2006-10-06 | 2014-08-11 | 니폰 덴키 가라스 가부시키가이샤 | Rotating grindstone |
| JP5881802B1 (en) * | 2014-09-30 | 2016-03-09 | 長春石油化學股▲分▼有限公司 | Buffer wheel and method of manufacturing buffer wheel |
| CN107984401A (en) * | 2017-12-29 | 2018-05-04 | 华侨大学 | A kind of skive with seedpod of the lotus structure and preparation method thereof |
| CN107984401B (en) * | 2017-12-29 | 2023-08-29 | 华侨大学 | A kind of diamond grinding wheel with shower pod structure and preparation method thereof |
| WO2026023514A1 (en) * | 2024-07-25 | 2026-01-29 | 株式会社アライドマテリアル | Superabrasive cutting wheel |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3018775B2 (en) | 2000-03-13 |
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Legal Events
| 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: 19991130 |