JPH03245971A - Cbn grindstone - Google Patents
Cbn grindstoneInfo
- Publication number
- JPH03245971A JPH03245971A JP4239290A JP4239290A JPH03245971A JP H03245971 A JPH03245971 A JP H03245971A JP 4239290 A JP4239290 A JP 4239290A JP 4239290 A JP4239290 A JP 4239290A JP H03245971 A JPH03245971 A JP H03245971A
- Authority
- JP
- Japan
- Prior art keywords
- cbn
- diamond
- abrasive grain
- binder
- bonding
- 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.)
- Pending
Links
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 25
- 239000010432 diamond Substances 0.000 claims abstract description 25
- 239000006061 abrasive grain Substances 0.000 claims abstract description 21
- 239000011230 binding agent Substances 0.000 claims abstract description 10
- 239000007787 solid Substances 0.000 claims abstract description 6
- 239000010409 thin film Substances 0.000 claims abstract description 3
- 239000011247 coating layer Substances 0.000 claims description 11
- 239000000314 lubricant Substances 0.000 abstract description 5
- 239000002184 metal Substances 0.000 abstract description 5
- 229910052751 metal Inorganic materials 0.000 abstract description 5
- 239000011347 resin Substances 0.000 abstract description 5
- 229920005989 resin Polymers 0.000 abstract description 5
- 239000011521 glass Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract 1
- 239000012808 vapor phase Substances 0.000 abstract 1
- 239000007767 bonding agent Substances 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、研削盤等の工作機械に用いられるＣＢＮ砥
石に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a CBN grindstone used in machine tools such as grinders.
〔従来の技術）
鉄系材料研削用研削砥石にダイヤモンド砥石を用いると
、研削において、ダイヤモンドは、炭素のため鉄系材料
に拡散し、浸炭と同様のことが生じ、ダイヤモンド砥粒
が無意味に消耗して不都合である。[Prior art] When a diamond whetstone is used as a grinding wheel for grinding ferrous materials, during grinding, the diamond diffuses into the ferrous material due to carbon, causing a phenomenon similar to carburization, rendering the diamond abrasive grains meaningless. It is consuming and inconvenient.
そのため、従来の技術においては、侍に鉄系材料研削用
研削砥石には、ＣＢＮ砥粒を直接メタルボンド、レジン
ボンド等の各種結合剤により固体成形したＣＢＮ砥石が
用いられている。Therefore, in the conventional technology, as a grinding wheel for grinding iron-based materials, a CBN grinding wheel in which CBN abrasive grains are directly molded into solid form with various bonding agents such as metal bond or resin bond is used.
従来の技術のＣＢＮ砥石においては、ＣＢＮ砥粒が直接
メタルボンド、レジンボンド等の各種結合剤により結合
されているが、ＣＢＮ砥粒は、表面が滑らかであるので
、結合剤による砥粒の保持力が十分ではない。In conventional CBN abrasive wheels, CBN abrasive grains are directly bonded with various bonding agents such as metal bond and resin bond, but since CBN abrasive grains have smooth surfaces, the abrasive grains cannot be held by the bonding agent. Not enough power.
又、研削砥石の潤滑性を結合剤に求めるべく、潤滑剤を
混合すると結合強度が低下する。Furthermore, when a lubricant is mixed in to provide the lubricity of the grinding wheel to the binder, the bond strength decreases.
この発明によるＣＢＮ砥石は、ダイヤモンド薄膜がコー
ティングされてダイヤモンド被覆層が形成されているＣ
ＢＮ砥粒が結合剤により結合保持されて固体成形されて
いる。The CBN grinding wheel according to the present invention is a CBN grinding wheel coated with a diamond thin film to form a diamond coating layer.
BN abrasive grains are bonded and held by a binder and formed into a solid.
上記のＣＢＮ砥石は、ダイヤモンド被覆層の表面がＣＢ
Ｎ砥粒の表面に比し、粗面であるため結合剤との間で大
きな結合力をもって砥粒が結合される。The above CBN grinding wheel has a diamond coating layer whose surface is made of CB.
Since the surface is rougher than that of N abrasive grains, the abrasive grains are bonded to the binder with a large bonding force.
そして、研削において、ダイヤモンド被覆層が露出し、
潤滑剤として作用する。Then, during grinding, the diamond coating layer is exposed,
Acts as a lubricant.
この発明の実施例のＣＢ Ｎ（Ｃｕｂｉｃ Ｂｏｒｏｎ
Ｎｉｔ ｒ ｉｄｅ立方晶窒化硼素）砥石を図面に従
って説明する。CB N (Cubic Boron) of the embodiment of this invention
The Nitride (cubic boron nitride) grindstone will be explained according to the drawings.
ＣＢＮ砥石は、ダイヤモンドがコーティングされてダイ
ヤモンド被覆層１が形成されているＣＢＮ砥粒２が結合
剤３、例えば金属、ガラス質、レジン等により結合保持
されて固体成形されている。The CBN grindstone is solid-molded, with CBN abrasive grains 2 coated with diamond forming a diamond coating layer 1 bonded and held by a binder 3 such as metal, glass, resin, or the like.
上記のＣＢＮ砥石の製造方法について述べると、ＣＶＤ
（Ｃｈｅｍｉｃａｌ Ｖａｐｏｒ Ｄｅｐｏｓｉｔｉｏ
ｎ化学的気相成長）法によりＣＢＮ砥粒２の表面に対し
ダイヤモンド薄膜を合成被覆し、ダイヤモンド被覆層１
を成形する。例えば、ＣＨ−ＨプラズマＣＶＤが用いら
れる。Regarding the manufacturing method of the above CBN grinding wheel, CVD
(Chemical Vapor Depositio
A thin diamond film is synthetically coated on the surface of the CBN abrasive grains 2 by a chemical vapor deposition method, and a diamond coating layer 1 is formed.
to form. For example, CH-H plasma CVD is used.
ＣＢＮは、その結晶構造がダイヤモンドと類似している
ので、その表面に対するダイヤモンドＣＶＤ膜は合成被
覆が容易で、ニッケル（Ｎｉ）被覆に比較して結合力も
大きい。Since the crystal structure of CBN is similar to that of diamond, it is easy to synthetically coat the surface of CBN with a diamond CVD film, and the bonding strength is greater than that of nickel (Ni) coating.
そして、ダイヤモンド被覆層１が形成されているＣＢＮ
砥粒２を結合剤３、例えば金属、ガラス質、レジン等に
より結合して固体成形する。その結合において、ＣＢＮ
砥石は、ダイヤモンド被覆層１の表面がＣＢＮ砥粒の表
面に比し、粗面であるため結合剤３との間で大きな結合
力をもって結合される。and CBN on which the diamond coating layer 1 is formed.
The abrasive grains 2 are bonded with a bonding agent 3, such as metal, glass, resin, etc., and are formed into a solid. In that combination, CBN
Since the surface of the diamond coating layer 1 is rougher than the surface of the CBN abrasive grains, the grindstone is bonded to the bonding agent 3 with a large bonding force.
このようにして製造されたＣＢＮ砥石は、研削・におい
て、ダイヤモンド被覆層１が露呂し、潤滑剤として作用
する。In the CBN grindstone manufactured in this manner, the diamond coating layer 1 is exposed during grinding and acts as a lubricant.
〔発明の効果］
この発明のＣＢＮ砥石は、ダイヤモンド被覆層の表面が
ＣＢＮ砥粒の表面に比し、粗面であるため結合剤との間
で大きな結合力をもって結合されるので、砥粒保持力が
大きく、しかも研削において、ダイヤモンド被覆層が潤
滑剤として作用する。[Effects of the Invention] The CBN grinding wheel of the present invention has a rough surface compared to the surface of the CBN abrasive grains, so it is bonded to the binder with a large bonding force, so that the abrasive grains are retained. The diamond coating layer acts as a lubricant during the grinding process.
図面は、この発明の実施例におけるＣＢＮ砥石の断面部
分図である。
ダイヤモンド被覆層
ＣＢＮ砥粒
３：結合剤The drawing is a partial cross-sectional view of a CBN grindstone in an embodiment of the present invention. Diamond coating layer CBN abrasive grain 3: Binder
Claims (1)
覆層が形成されているＣＢＮ砥粒が結合剤により結合保
持されて固体成形されているＣＢＮ砥石A CBN grinding wheel in which CBN abrasive grains coated with a diamond thin film to form a diamond coating layer are bonded and held by a binder to form a solid form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4239290A JPH03245971A (en) | 1990-02-26 | 1990-02-26 | Cbn grindstone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4239290A JPH03245971A (en) | 1990-02-26 | 1990-02-26 | Cbn grindstone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03245971A true JPH03245971A (en) | 1991-11-01 |
Family
ID=12634797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4239290A Pending JPH03245971A (en) | 1990-02-26 | 1990-02-26 | Cbn grindstone |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03245971A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08325558A (en) * | 1995-03-31 | 1996-12-10 | Toyota Banmotsupusu Kk | Composite abrasive grain and its production |
| JP2015229197A (en) * | 2014-06-03 | 2015-12-21 | 株式会社ジェイテクト | Method of manufacturing vitrified bond grindstone and the vitrified bond grindstone |
-
1990
- 1990-02-26 JP JP4239290A patent/JPH03245971A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08325558A (en) * | 1995-03-31 | 1996-12-10 | Toyota Banmotsupusu Kk | Composite abrasive grain and its production |
| JP2015229197A (en) * | 2014-06-03 | 2015-12-21 | 株式会社ジェイテクト | Method of manufacturing vitrified bond grindstone and the vitrified bond grindstone |
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