JPH04250981A - Super abrasive grain grinding wheel - Google Patents
Super abrasive grain grinding wheelInfo
- Publication number
- JPH04250981A JPH04250981A JP40799590A JP40799590A JPH04250981A JP H04250981 A JPH04250981 A JP H04250981A JP 40799590 A JP40799590 A JP 40799590A JP 40799590 A JP40799590 A JP 40799590A JP H04250981 A JPH04250981 A JP H04250981A
- Authority
- JP
- Japan
- Prior art keywords
- aggregate
- carbon
- abrasive grains
- diamond
- diamond powder
- 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
- 239000006061 abrasive grain Substances 0.000 title claims abstract description 21
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 23
- 239000010432 diamond Substances 0.000 claims abstract description 23
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 14
- 239000000843 powder Substances 0.000 claims abstract description 14
- 239000000919 ceramic Substances 0.000 claims abstract description 8
- 239000011230 binding agent Substances 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims abstract description 7
- 230000020169 heat generation Effects 0.000 abstract description 4
- 230000001050 lubricating effect Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 2
- 238000005524 ceramic coating Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Landscapes
- Polishing Bodies And Polishing Tools (AREA)
Abstract
Description
【0001】0001
【産業上の利用分野】本発明は、超砥粒砥石に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a superabrasive grindstone.
【0002】0002
【従来の技術】従来から、ダイヤモンド砥粒もしくはC
BN砥粒をビトリファイド系結合剤にて結合させた砥石
において、研削抵抗の軽減及びコスト軽減を図るため、
ダイヤモンド砥粒もしくはCBN砥粒の一部を、Al2
O3 ,SiC等のセラミックス粒子を置き換えて骨
材とし、ダイヤモンド砥粒もしくはCBN砥粒の集中度
の低減を図ったものがある。[Prior Art] Conventionally, diamond abrasive grains or C
In order to reduce grinding resistance and cost in a whetstone in which BN abrasive grains are bonded with a vitrified binder,
Some of the diamond abrasive grains or CBN abrasive grains are
There is a method in which ceramic particles such as O3 and SiC are used as an aggregate to reduce the concentration of diamond abrasive grains or CBN abrasive grains.
【0003】0003
【発明が解決しようとする課題】上記の構造にすると、
研削時に骨材として置き換えたセラミックス粒子が工作
物と接触して発熱するため、工作物に研削焼けが生じや
すいという問題がある。[Problem to be solved by the invention] With the above structure,
There is a problem in that the ceramic particles replaced as aggregate during grinding come into contact with the workpiece and generate heat, which tends to cause grinding burn on the workpiece.
【0004】0004
【課題を解決するための手段】本発明は、上述した問題
を解決するためになされたもので、砥石を、金属または
セラミックスによりコーティングされたカーボンまたは
ダイヤモンド粉末を骨材として、この骨材とダイヤモン
ド砥粒もしくはCBN砥粒を結合剤で結合したことを特
徴とする。[Means for Solving the Problems] The present invention has been made to solve the above-mentioned problems, and a grinding wheel is made of carbon or diamond powder coated with metal or ceramics as an aggregate, and this aggregate and diamond It is characterized by bonding abrasive grains or CBN abrasive grains with a binder.
【0005】[0005]
【作用】砥石で工作物を研削する時に、工作物と接触し
た骨材は容易にへき開され、内部のカーボンまたはダイ
ヤモンド粉末の高潤滑性により、摩擦による発熱が低減
され、また熱伝導性がよいので、工作物への熱の伝導を
抑える。[Operation] When grinding a workpiece with a grindstone, the aggregate that comes into contact with the workpiece is easily cleaved, and the high lubricity of the carbon or diamond powder inside reduces heat generation due to friction and has good thermal conductivity. Therefore, the conduction of heat to the workpiece is suppressed.
【0006】[0006]
【実施例】以下に本発明の実施例を図面に基づいて説明
する。図1に、本発明による超砥粒砥石の形状を示す。
その表層10に設けた砥石層の組織の拡大図を図2に示
す。図2において、3はダイヤモンドもしくはCBNか
らなる砥粒である。2は骨材で、砥粒3の一部に置き換
えられて研削抵抗の軽減及びコスト軽減を図っている。
骨材2は、カーボンまたはダイヤモンド粉末1を金属ま
たはセラミックスのコーティング層6によって囲まれた
構造からなっている。それら砥粒3と骨材2は、ビトリ
ファイド系の結合剤4によって、適度な気孔5を保ちな
がら結合されている。骨材2に、金属またはセラミック
スをコーティングするのは、砥石を焼成する際、空気雰
囲気で焼成しても、内部のカーボンまたはダイヤモンド
粉末1が酸化することを防止するためである。DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the present invention will be described below with reference to the drawings. FIG. 1 shows the shape of a superabrasive grindstone according to the present invention. FIG. 2 shows an enlarged view of the structure of the grindstone layer provided on the surface layer 10. In FIG. 2, 3 is an abrasive grain made of diamond or CBN. Reference numeral 2 is aggregate, which is substituted for part of the abrasive grains 3 to reduce grinding resistance and cost. The aggregate 2 has a structure in which carbon or diamond powder 1 is surrounded by a metal or ceramic coating layer 6. The abrasive grains 3 and the aggregate 2 are bonded together with a vitrified binder 4 while maintaining appropriate pores 5. The purpose of coating the aggregate 2 with metal or ceramics is to prevent the carbon or diamond powder 1 inside from being oxidized even when the grindstone is fired in an air atmosphere.
【0007】このような構造の超砥粒砥石を用いて工作
物を研削すると、ダイヤモンドもしくはCBNからなる
砥粒3が工作物と接触して研削作用が生じる。その際、
骨材2も工作物と接触するが、骨材2は容易にへき開さ
れ、内部のカーボンまたはダイヤモンド粉末1が、砥石
と工作物の間に広がって、カーボンまたはダイヤモンド
粉末1の有する高潤滑性により摩擦による発熱が低減さ
れる。さらに、カーボンまたはダイヤモンド粉末1は、
熱伝導性がよいので、工作物への熱の伝導が抑えられ、
工作物に研削焼けが生じるのを防止する。When a workpiece is ground using a superabrasive grindstone having such a structure, the abrasive grains 3 made of diamond or CBN come into contact with the workpiece, producing a grinding action. that time,
The aggregate 2 also comes into contact with the workpiece, but the aggregate 2 is easily cleaved and the carbon or diamond powder 1 inside spreads between the grinding wheel and the workpiece, due to the high lubricity of the carbon or diamond powder 1. Heat generation due to friction is reduced. Furthermore, carbon or diamond powder 1 is
Good thermal conductivity reduces heat conduction to the workpiece,
Prevents grinding burn from occurring on the workpiece.
【0008】[0008]
【発明の効果】以上述べたように本発明の超砥粒砥石は
、金属またはセラミックスによりコーティングされたカ
ーボンまたはダイヤモンド粉末を骨材として、この骨材
とダイヤモンド砥粒もしくはCBN砥粒を結合剤で結合
した構成からなっているため、工作物を研削する時に、
工作物と接触した骨材は容易にへき開され、内部のカー
ボンまたはダイヤモンド粉末の高潤滑性により摩擦によ
る発熱が低減され、さらに熱伝導性がよいので、工作物
への熱の伝導が抑えられて、工作物に研削焼けが生じる
のを防止することができる。Effects of the Invention As described above, the superabrasive grindstone of the present invention uses carbon or diamond powder coated with metal or ceramics as an aggregate, and combines this aggregate with diamond abrasive grains or CBN abrasive grains with a binder. Because it has a combined structure, when grinding a workpiece,
The aggregate that comes into contact with the workpiece is easily cleaved, and the high lubricity of the internal carbon or diamond powder reduces heat generation due to friction, and its good thermal conductivity suppresses heat conduction to the workpiece. , it is possible to prevent grinding burn from occurring on the workpiece.
【図1】本発明の砥石の全体図である。FIG. 1 is an overall view of a grindstone of the present invention.
【図2】本発明の砥石層の組織の拡大図である。FIG. 2 is an enlarged view of the structure of the grindstone layer of the present invention.
1 カーボンまたはダイヤモンド粉末2 骨材 3 砥粒 4 結合剤 6 コーディング層 1. Carbon or diamond powder 2. Aggregate 3 Abrasive grains 4 Binder 6 Coding layer
Claims (1)
ィングされたカーボンまたはダイヤモンド粉末を骨材と
して、この骨材とダイヤモンド砥粒もしくはCBN砥粒
を結合剤で結合させた超砥粒砥石。1. A superabrasive grindstone in which carbon or diamond powder coated with metal or ceramics is used as an aggregate, and this aggregate and diamond abrasive grains or CBN abrasive grains are bonded with a binder.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2407995A JP3000678B2 (en) | 1990-12-27 | 1990-12-27 | Super abrasive whetstone |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2407995A JP3000678B2 (en) | 1990-12-27 | 1990-12-27 | Super abrasive whetstone |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH04250981A true JPH04250981A (en) | 1992-09-07 |
JP3000678B2 JP3000678B2 (en) | 2000-01-17 |
Family
ID=18517508
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2407995A Expired - Fee Related JP3000678B2 (en) | 1990-12-27 | 1990-12-27 | Super abrasive whetstone |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3000678B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0888849A2 (en) * | 1997-06-30 | 1999-01-07 | Toyoda Koki Kabushiki Kaisha | Grinding wheel |
EP1126003A1 (en) * | 2000-02-16 | 2001-08-22 | Mitsubishi Materials Corporation | Resin bonded abrasive tool |
US6383238B1 (en) * | 1999-08-17 | 2002-05-07 | Mitsubishi Materials Corporation | Resin bonded abrasive tool |
-
1990
- 1990-12-27 JP JP2407995A patent/JP3000678B2/en not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0888849A2 (en) * | 1997-06-30 | 1999-01-07 | Toyoda Koki Kabushiki Kaisha | Grinding wheel |
EP0888849A3 (en) * | 1997-06-30 | 2002-03-20 | Toyoda Koki Kabushiki Kaisha | Grinding wheel |
US6383238B1 (en) * | 1999-08-17 | 2002-05-07 | Mitsubishi Materials Corporation | Resin bonded abrasive tool |
KR100615896B1 (en) * | 1999-08-17 | 2006-08-28 | 미츠비시 마테리알 가부시키가이샤 | Resin bonded abresive tool |
EP1126003A1 (en) * | 2000-02-16 | 2001-08-22 | Mitsubishi Materials Corporation | Resin bonded abrasive tool |
Also Published As
Publication number | Publication date |
---|---|
JP3000678B2 (en) | 2000-01-17 |
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