JPS6341709B2 - - Google Patents
Info
- Publication number
- JPS6341709B2 JPS6341709B2 JP13904583A JP13904583A JPS6341709B2 JP S6341709 B2 JPS6341709 B2 JP S6341709B2 JP 13904583 A JP13904583 A JP 13904583A JP 13904583 A JP13904583 A JP 13904583A JP S6341709 B2 JPS6341709 B2 JP S6341709B2
- Authority
- JP
- Japan
- Prior art keywords
- abrasive grains
- grinding
- vitrified
- mixed
- superabrasive
- 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.)
- Expired
Links
- 239000006061 abrasive grain Substances 0.000 claims description 20
- 229910003460 diamond Inorganic materials 0.000 claims description 10
- 239000010432 diamond Substances 0.000 claims description 10
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 2
- 238000010304 firing Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 229910052582 BN Inorganic materials 0.000 description 2
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 2
- 239000004375 Dextrin Substances 0.000 description 2
- 229920001353 Dextrin Polymers 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 235000019425 dextrin Nutrition 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 229910001289 Manganese-zinc ferrite Inorganic materials 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- JIYIUPFAJUGHNL-UHFFFAOYSA-N [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Mn++].[Mn++].[Mn++].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Zn++].[Zn++] Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Mn++].[Mn++].[Mn++].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Zn++].[Zn++] JIYIUPFAJUGHNL-UHFFFAOYSA-N 0.000 description 1
- -1 bond Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
- B24D3/04—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic
- B24D3/14—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic ceramic, i.e. vitrified bondings
Description
【発明の詳細な説明】
各種研削砥石の中で、砥石の三要素である砥
粒、ボンド、気孔を兼ねそなえ、砥粒とボンドの
結合が強固で、かつボンドの剛性が高いビトリフ
アイドボンド砥石は、研削能力や加工精度がすぐ
れ、また研削作業の遂行に必要なドレス作業が可
能であるため、精密研削加工には不可欠のもので
ある。[Detailed Description of the Invention] Among various grinding wheels, vitrified bond has the three elements of a grinding wheel: abrasive grains, bond, and pores, and the bond between the abrasive grain and bond is strong, and the bond has high rigidity. Grinding wheels are indispensable for precision grinding because they have excellent grinding ability and processing accuracy, and can perform the dressing work necessary to perform grinding operations.
近年、ダイヤモンドや立方晶窒化ほう素
（CBN）のように極めて高い硬度を有し、研削能
力が非常にすぐれた高価格の砥粒を一般に超砥粒
と称し、難研削材の加工に賞用されるようになつ
た。この高価で高性能の超砥粒を有効に利用する
ため、補助砥粒として一般砥粒と混合した砥粒か
らなるビトリフアイド砥石が製造され、実用に供
されている。このようなダイヤモンドビトリフア
イド砥石やCBNビトリフアイド砥石に用いられ
る補助砥粒としては、一般砥石の主要構成要素で
あるアルミナ質および炭化けい素質の砥粒が用い
られる。これらの砥石を使用することにより、難
研削材料に対する研削能力および加工精度が飛躍
的に向上し、またドレス作業が可能であるため、
研削加工の応用範囲が著しく増大した。 In recent years, high-priced abrasive grains such as diamond and cubic boron nitride (CBN), which have extremely high hardness and excellent grinding ability, are generally referred to as superabrasive grains and are prized for processing difficult-to-grind materials. It started to be done. In order to effectively utilize this expensive and high-performance superabrasive grain, a vitrified grindstone consisting of abrasive grains mixed with general abrasive grains as auxiliary abrasive grains has been manufactured and put into practical use. Alumina and silicon carbide abrasive grains, which are the main constituents of general whetstones, are used as auxiliary abrasive grains for such diamond vitrified whetstones and CBN vitrified whetstones. By using these grindstones, the grinding ability and processing accuracy for difficult-to-grind materials are dramatically improved, and dressing work is also possible.
The range of applications for grinding has increased significantly.
しかし、ドレス性については、ドレス作業が可
能にはなつたものの、ドレス作業用の工具である
ダイヤモンドドレツサの減耗は一般砥石の場合に
比べて著しく多く、これらが超砥粒ビトリフアイ
ド砥石の広範囲な実用化を阻害している。 However, regarding dressing properties, although dressing work has become possible, the wear and tear of the diamond dresser, which is a tool for dressing work, is significantly greater than that of general grinding wheels, and these are the major drawbacks of superabrasive bitrified grinding wheels. This is hindering practical application.
本発明による超砥粒ビトリフアイド砥石は、こ
のような欠点を改良したものである。すなわち、
超砥粒と混合すべき相手の砥粒として窒化チタン
粒子を使用することによりドレス性が著しく向上
するものである。高い硬度は、砥粒としての必要
条件であるが、この点で窒化チタンはアルミナ質
砥粒にやや劣るため、未だ実用化されていない
が、化学的に不活性で構成刃先を生じないため、
切削工具材料として利用されている。 The superabrasive vitrified grinding wheel according to the present invention improves these drawbacks. That is,
By using titanium nitride particles as the abrasive grains to be mixed with the superabrasive grains, the dressing properties are significantly improved. High hardness is a necessary condition for abrasive grains, but titanium nitride is slightly inferior to alumina abrasive grains in this respect, so it has not yet been put to practical use.However, it is chemically inert and does not produce built-up edges, so
It is used as a cutting tool material.
窒化チタン粒子と超砥粒との混合砥粒からなる
ビトリフアイド砥石は、窒化チタンの硬度がアル
ミナ質砥粒よりやや低く、微小破砕性に富み、ま
た化学的に不活性であるため、ドレス作業時にお
けるダイヤモンドドレツサの減耗が小である。 A vitrified grindstone, which is made of a mixed abrasive grain of titanium nitride particles and superabrasive grains, has a slightly lower hardness than alumina abrasive grains, has excellent microfragility, and is chemically inert, making it suitable for dressing work. The wear of the diamond dresser is small.
また、本発明による砥石の研削性能は、従来の
ビトリフアイド超砥粒砥石に比べむしろすぐれて
いる。すなわち、全砥粒のうち、切削にあずかる
のは主として超砥粒であり、他の砥粒は超砥粒の
保持と補助的な切削作用を行う。窒化チタンの硬
度（ヌープ硬さ1950Kg／mm2）はアルミナ質砥粒の
硬度（ヌープ硬さ2050Kg／mm2）よりやや低いが、
金属や一般のセラミツクスの硬度よりはかなり高
く、補助切削の役目は充分はたすことができる。
また窒化チタンはとくに金属に対して化学的に不
活性であり、そのすぐれた破砕性と相まつて研削
砥石作業面への切屑の溶着による目詰まり現象が
ない。従つて、窒化チタンを補助砥粒とするビト
リフアイド超砥粒砥石は切れ味が良好で目詰まり
が少なく、仕上げ面粗さが良好で、スクラツチや
研削焼けなどの好ましくない現象が少ない。 Furthermore, the grinding performance of the grindstone according to the present invention is rather superior to that of conventional vitrified superabrasive grindstones. That is, among all the abrasive grains, it is mainly the superabrasive grains that participate in cutting, and the other abrasive grains hold the superabrasive grains and perform an auxiliary cutting action. The hardness of titanium nitride (Knoop hardness: 1950Kg/mm 2 ) is slightly lower than that of alumina abrasive grains (Knoop hardness: 2050Kg/mm 2 );
Its hardness is considerably higher than that of metals and general ceramics, and it can fully serve the role of auxiliary cutting.
Furthermore, titanium nitride is particularly chemically inert towards metals, and combined with its excellent friability, there is no clogging phenomenon due to welding of chips to the working surface of the grinding wheel. Therefore, a vitrified superabrasive grindstone using titanium nitride as an auxiliary abrasive has good sharpness, less clogging, good finished surface roughness, and less undesirable phenomena such as scratches and grinding burn.
以下、本発明の効果を実施例に基づき説明す
る。 Hereinafter, the effects of the present invention will be explained based on Examples.
実施例 １
人造ダイヤモンド（平均粒度5μｍ）45部と、
窒化チタン（平均粒度12μｍ）55部を混合し、水
5.0部でしめらす。一方、ガラスフリツト（軟化
点400℃、熱膨脹係数5.2×10-6／℃）19部と黄色
デキストリン1.5部、リグニン粉末1.0部とを混合
する。この混合結合剤をしめらした混合砥粒と混
合し、網通し後、金型に装填し、かさ密度2.60で
圧搾成型し、110℃で３時間乾燥する。この生砥
石を毎時100℃の加熱速度で昇温し、700℃で４時
間保持後徐冷する。Example 1 45 parts of artificial diamond (average particle size 5 μm),
Mix 55 parts of titanium nitride (average particle size 12μm) and add water.
I'll show you in part 5.0. Meanwhile, 19 parts of glass frit (softening point: 400°C, thermal expansion coefficient: 5.2×10 -6 /°C), 1.5 parts of yellow dextrin, and 1.0 part of lignin powder were mixed. This mixed binder is mixed with the dampened mixed abrasive grains, passed through a screen, loaded into a mold, compressed to a bulk density of 2.60, and dried at 110°C for 3 hours. This green grindstone was heated at a heating rate of 100°C per hour, held at 700°C for 4 hours, and then slowly cooled.
このようにして製造したビトリフアイドボンド
ダイヤモンド砥石は、湿式で単石ダイヤモンドド
レツサで容易にドレスすることが出来、ドレツサ
の摩耗は同一粒度、同一コンセントレーシヨンの
ダイヤモンド砥石に比べ、1/5であつた。また、
この砥石を用い、マンガン亜鉛フエライト単結晶
を横軸レシプロ平面研削盤で湿式平面研削した結
果、面粗さ0.02μｍ、加工変質層0.2μｍのすぐれ
た加工面が得られ、スクラツチの発生は全くなか
つた。 The vitrified bonded diamond grinding wheel manufactured in this way can be easily dressed with a single-stone diamond dresser in a wet process, and the wear of the dresser is 1/5 that of a diamond grinding wheel of the same particle size and concentration. It was hot. Also,
Using this grindstone, wet surface grinding of a manganese zinc ferrite single crystal with a horizontal axis reciprocating surface grinder resulted in an excellent machined surface with a surface roughness of 0.02 μm and a damaged layer of 0.2 μm, with no scratches occurring. Ta.
実施例 ２
立方晶窒化ほう素（粒度 #270/325）42.5部と
窒化チタン（平均粒度 #120）57.5部を混合し、
水4.2部でしめらす。一方、ガラスフリツト（軟
化点680℃、熱膨脹係数7.1×10-6／℃）18部と黄
色デキストリン1.5部、ポリビニールアルコール
粉末1.5部とを混合する。この混合結合剤をしめ
らした混合砥粒と混合し、網通し後、金型に装填
し、かさ密度2.15で圧搾成型し、110℃で３時間
乾燥する。この生砥石を毎時100℃の加熱速度で
700℃まで昇温して２時間保持後、徐々に窒素ガ
スを封入しながら、さらに毎時100℃の昇温速度
で昇温し、1000℃で４時間保持後徐冷する。Example 2 42.5 parts of cubic boron nitride (grain size #270/325) and 57.5 parts of titanium nitride (average grain size #120) were mixed,
Soak with 4.2 parts water. Meanwhile, 18 parts of glass frit (softening point: 680°C, thermal expansion coefficient: 7.1×10 -6 /°C), 1.5 parts of yellow dextrin, and 1.5 parts of polyvinyl alcohol powder are mixed. This mixed binder is mixed with wetted mixed abrasive grains, passed through a screen, loaded into a mold, compressed to a bulk density of 2.15, and dried at 110°C for 3 hours. This raw whetstone is heated at a heating rate of 100℃ per hour.
After raising the temperature to 700°C and holding it for 2 hours, the temperature was further raised at a rate of 100°C per hour while gradually filling in nitrogen gas, and after holding at 1000°C for 4 hours, it was slowly cooled.
このようにして製造したビトリフアイドボンド
CBN砥石は、湿式で単石ダイヤモンドドレツサ
で容易にドレスすることが出来、ドレツサの摩耗
は同一粒度、同一コンセントレーシヨンのビトリ
フアイドボンドCBN砥石に比べ1/4であつた。ま
た、この砥石を用い、焼入軸受鋼を湿式で内面研
削を行つた場合、従来のビトリフアイドボンド
CBN砥石に比べ、目詰まりやびびり現象が発生
せず、ドレス間隔が16から55まで延長した。 Vitrified bond produced in this way
The CBN grinding wheel could be easily dressed with a wet single-stone diamond dresser, and the wear of the dresser was 1/4th that of a vitrified bonded CBN grinding wheel of the same grain size and concentration. In addition, when using this grinding wheel to perform wet internal grinding of hardened bearing steel, it is possible to use the conventional vitrified bond.
Compared to CBN grinding wheels, clogging and chatter phenomena do not occur, and the dressing interval has been extended from 16 to 55.
特に本発明は、これらの実施例に記載されたも
のに限定されるものではない。 In particular, the invention is not limited to what is described in these examples.
Claims (1)
を、ビトリフアイドボンドで焼成結合することを
特徴とするビトリフアイドボンドダイヤモンド砥
石の製造方法。1. A method for manufacturing a vitrified bond diamond grinding wheel, which comprises firing and bonding mixed abrasive grains consisting of super abrasive grains and titanium nitride particles using a vitrified bond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13904583A JPS6029279A (en) | 1983-07-29 | 1983-07-29 | Method for manufacture of vitrified bond superabraisive grain grindstone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13904583A JPS6029279A (en) | 1983-07-29 | 1983-07-29 | Method for manufacture of vitrified bond superabraisive grain grindstone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6029279A JPS6029279A (en) | 1985-02-14 |
| JPS6341709B2 true JPS6341709B2 (en) | 1988-08-18 |
Family
ID=15236173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13904583A Granted JPS6029279A (en) | 1983-07-29 | 1983-07-29 | Method for manufacture of vitrified bond superabraisive grain grindstone |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6029279A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62264855A (en) * | 1986-05-12 | 1987-11-17 | Inoue Japax Res Inc | Conductive grinding stone |
| JP5603591B2 (en) * | 2009-11-27 | 2014-10-08 | 株式会社アドマテックス | Abrasive grain for processing, processing tool, processing liquid, and processing method using them |
-
1983
- 1983-07-29 JP JP13904583A patent/JPS6029279A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6029279A (en) | 1985-02-14 |
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