JPS6085869A - Grindstone - Google Patents

Grindstone

Info

Publication number
JPS6085869A
JPS6085869A JP19403483A JP19403483A JPS6085869A JP S6085869 A JPS6085869 A JP S6085869A JP 19403483 A JP19403483 A JP 19403483A JP 19403483 A JP19403483 A JP 19403483A JP S6085869 A JPS6085869 A JP S6085869A
Authority
JP
Japan
Prior art keywords
particles
abrasive
films
grindstone
binder
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
Application number
JP19403483A
Other languages
Japanese (ja)
Inventor
Masahiro Hashimoto
政弘 橋本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to JP19403483A priority Critical patent/JPS6085869A/en
Publication of JPS6085869A publication Critical patent/JPS6085869A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/34Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties

Abstract

PURPOSE:To make it possible to carry out a highly efficient grinding process, and as well to aim at reducing the roughness of a worked surface, by coating super grain abrasive particles with metallic films, and by dispersing ceramic micro-particles having a grain size smaller than that of the above-mentioned abrasive particles, uniformly into binding agent. CONSTITUTION:Abrasive particles 15 in an abrasive section 15 is coated with metal films 16 made of Cu, Ni, etc. or alloy containing one kind of the above- mentined metals, and the film 16 on one particle is made into close contact with the films 16 on the adjacent particles so that they are integrally incorporated together. A binding agent 17 which is selected from the groups consisting of synthetic resin materials such as, for example, phenol, and inorganic biding agents such as, for example, glass or the like, is disposed between the particles 15 coated with the films 16, and ceramic micro- particles 18 having a grain size less than that of the abrasive particles 15 are uniformly dispersed into the binding agent 17. Further, the plurality of the abrasive particles 15 are directly held by the metallic films 16 which are joined together so that they are integrally incorporated together, and are also indirectly held by the binding agent 17 through the intermediary of the metallic films 16, thereby a finish grindstone having a great abrasive coercive force and a high concentration may be obtained.

Description

【発明の詳細な説明】 〔発明の技術分野〕 この発明は難削材の加工、特にその仕上加工に好適な砥
石に関する。
DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a grindstone suitable for processing difficult-to-cut materials, particularly for finishing the same.

〔発明の技術的背景とその問題点〕[Technical background of the invention and its problems]

超硬金属、ガラス、セラミックス、その他いわゆる難削
材の加工には、一般に、ダイヤモンド砥石が用いられて
いるが、従来の砥石は研削能率が低く、また加工面に研
摩条痕を残す。したがって、精密部品の加工については
、上記砥石を用いて研削加工したのち、仕上加工する必
要があった。また、熱サイクル、熱衝撃1機械的振動な
どが加わるガラス、セラミックスなどの硬脆部品につい
ては、上記加工面に残存する研摩条痕からクラックを発
生する危険があるので、同様に仕上加工をおこなって研
摩条痕を取除く必要がある。
Diamond grinding wheels are generally used to process cemented carbide metals, glass, ceramics, and other so-called difficult-to-cut materials, but conventional grinding wheels have low grinding efficiency and leave grinding marks on the processed surfaces. Therefore, when processing precision parts, it is necessary to perform finishing processing after grinding using the above-mentioned grindstone. In addition, for hard and brittle parts such as glass and ceramics that are subjected to thermal cycles, thermal shocks, and mechanical vibrations, there is a risk of cracks occurring from the abrasive marks remaining on the machined surface, so finish processing should be performed in the same way. It is necessary to remove the abrasive marks.

ところで、本出願人は、先に難削材を高能率に研削する
砥石を開発し、これを特願昭57−77733号によっ
て出願した。この砥石は第1図に示すように、ダイヤモ
ンド砥粒(1)をNiなどの導電材料で被覆し、この導
電材料からなる被膜(2)を相互に密着させて各砥粒(
11を直接保持するとともに、この被膜(2)間に結合
剤(3)を介在させて、この結合剤(3)で谷砥粒(1
)を間接的に保持する構造にしたものである。この砥石
はその構造に起因する高い砥粒保持力により砥粒の集中
度を高めることができ、また、適度のチップポケットの
生成により、従来砥石に比べて、高能率研削が可能とな
り、同時に加工面のあらさをいちじるしく向上すること
ができたが、なお精密部品などに対しては仕上加工を必
要としている。
By the way, the present applicant previously developed a grindstone for grinding difficult-to-cut materials with high efficiency, and filed an application for this in Japanese Patent Application No. 77733/1983. As shown in Fig. 1, this grindstone is made by coating diamond abrasive grains (1) with a conductive material such as Ni, and making the coating (2) made of this conductive material adhere to each other so that each abrasive grain (
11 is directly held, and a binder (3) is interposed between this coating (2), and this binder (3) is used to hold the valley abrasive grains (1).
) has a structure that indirectly holds. This whetstone can increase the concentration of abrasive grains due to its high abrasive retention power due to its structure, and the generation of appropriate chip pockets enables highly efficient grinding compared to conventional whetstones. Although we were able to significantly improve the surface roughness, finishing work is still required for precision parts.

〔発明の目的〕[Purpose of the invention]

この発明は高能率研削が可能であると同時に、加工面の
わらさをいちじるしく減少し得る砥石を製作することを
目的とする。
The object of the present invention is to manufacture a grindstone that is capable of highly efficient grinding and at the same time can significantly reduce the roughness of the machined surface.

〔発明の概要〕[Summary of the invention]

超砥粒を多数結合剤で一体化するとともに、結合剤中に
セラミックス微粒子を配合したものであり、特に、セラ
ミックス微粒子の粒度を超砥粒の粒度より小さくシ、か
つ、超砥粒を金属被膜で被覆し、この金属被膜を相互に
密着させてセラミックス微粒子が結合剤中に均一に分散
する構造にすることによTO%難削材の加工にきわめて
有効な砥石とした。
A large number of super abrasive grains are integrated with a binder, and ceramic fine particles are mixed in the binder.In particular, the grain size of the ceramic fine particles is smaller than that of the super abrasive grains, and the super abrasive grains are coated with a metal coating. By coating the metal coatings with each other and creating a structure in which the ceramic fine particles are uniformly dispersed in the binder, a grindstone that is extremely effective for machining difficult-to-cut materials with TO% can be obtained.

以下、この発明を図面を参照し実施例に基づいて説明す
る。
Hereinafter, the present invention will be explained based on examples with reference to the drawings.

第2図(A)図および(B)図は円板状の台金部の外周
縁部に砥粒部(1υを形成した砥石の一例であって1台
金部はA1などの金属で形成され、その中央部には、研
削盤などの回転軸に取付ける貫通孔(1Oa)が形成さ
れている。この台金α@の外周縁部には、フェノール樹
脂などからなる環状の下地部αりが設けられ、砥粒部a
υはこの下地部(12を介して上記台金(10)に取付
けられている。
Figures 2 (A) and (B) are examples of grindstones in which abrasive grains (1υ) are formed on the outer peripheral edge of a disc-shaped base metal part, and the 1 base metal part is made of metal such as A1. A through hole (10a) is formed in the center of the base metal to attach it to a rotating shaft of a grinding machine, etc. At the outer peripheral edge of this base metal α, there is an annular base α made of phenolic resin or the like. is provided, and the abrasive grain part a
υ is attached to the base metal (10) via this base portion (12).

第3図はこの砥粒部αυを拡大した第1図に対応する図
であって、(I9は、研削の際主要な切刃として作用す
るダイヤモンド、立方晶窒化珪素、立方晶窒化硼素など
の超砥粒であり、特に図面には、ダイヤモンドは粒を示
した。上記砥粒(L9はs CuIAj、 Au、 A
L、 Sn、 Zn、 Ni、 Or、 Coなとの金
属またはそれの少くとも一種を含む合金からなる金属被
膜Il!で被覆され、この金属被膜−は隣接砥粒部を被
覆する金属被膜1ll19に密接し一体化している。そ
して、この金属被膜11[9で被覆された砥粒部間に、
フェノール、ポリアミド、ポリイミド、エポキシ。
FIG. 3 is an enlarged view of the abrasive grain portion αυ corresponding to FIG. It is a super abrasive grain, especially in the drawing, the diamond showed a grain.The above abrasive grain (L9 is s CuIAj, Au, A
Metal coating Il! made of metals such as L, Sn, Zn, Ni, Or, Co, or an alloy containing at least one of them! This metal coating is closely integrated with the metal coating 1ll19 that covers the adjacent abrasive grain portion. Then, between the abrasive grain portions covered with this metal coating 11[9,
Phenol, polyamide, polyimide, epoxy.

不飽和ポリエステル、ポリアセタールなどの合成樹脂、
天然の有機高分子材料、ガラスその他の無機結合剤など
から選択された結合剤(17)が介在し。
Synthetic resins such as unsaturated polyester and polyacetal,
A binder (17) selected from natural organic polymeric materials, glass and other inorganic binders is interposed.

この結合剤面中にセラミックス微粒子(18が均一に分
散配合されている。このセラミックス微粒子(18は%
8i3N、、 8iC,T、iN、 Tie、 Mo8
.、 WCなどの非酸化物セラミックスまたはA120
g、 ZnO,、Tie、などの酸化物セラミックスか
らなり、その粒度は上記超砥粒(151の粒度より小さ
い。なお、このセラミックス微粒子(へ)に金属被膜を
被着することは任意である。
Ceramic fine particles (18) are uniformly dispersed in this binder surface.
8i3N,, 8iC,T,iN, Tie, Mo8
.. , non-oxide ceramics such as WC or A120
The particle size is smaller than that of the superabrasive grains (151).It is optional to apply a metal coating to the ceramic fine particles.

この砥石の構造上の特徴の一つは、複数の砥粒(1均が
相互に接合して一体化した金属被膜[161によって直
接保持されているとともに、上記金属被膜uBを介して
結合剤面により間接的に保持されている点にある。これ
は基本的に従来公知の砥石にくらべて砥粒保持力が大き
く、集中度の高い砥石を製作しうろことを示している。
One of the structural features of this whetstone is that a plurality of abrasive grains are directly held by a metal coating [161] in which a plurality of abrasive grains are bonded to each other and integrated, and the bonding agent surface is This basically means that compared to conventionally known grindstones, it is possible to manufacture a grindstone that has a greater abrasive retention force and a higher degree of concentration.

しかして、このような砥石にするためには、砥粒(I5
1への金属被膜−の被覆量を30〜80wt%とじ、こ
の金属被覆砥粒を33〜54vo1%、好ましくは40
〜64 vo1%含有させることが必要である。また、
結合剤Iへのセラミックス微粒子0I19の配合量は砥
石性能改善上3〜25VOIl!10にするとよい。
However, in order to make such a whetstone, abrasive grains (I5
The coating amount of the metal coating on 1 is 30 to 80 wt%, and the metal coated abrasive grains are 33 to 54 vol%, preferably 40 wt%.
It is necessary to contain up to 64 vol%. Also,
The amount of ceramic fine particles 0I19 added to the binder I is 3 to 25 VOIl in order to improve the performance of the grinding wheel! It is better to set it to 10.

つぎに、この砥石の製造法として、特にフェノール樹脂
を結合剤11ηとした場合について述べると、まず、切
削加工などにより合金(lO)を製作し、その外周縁部
に台金OQおよび砥粒部αυと接着するたとえばフェノ
ール樹脂からなる下地部(12+を形成する。
Next, we will discuss the manufacturing method of this grindstone, especially when phenolic resin is used as the binder 11η. First, an alloy (IO) is manufactured by cutting, etc., and a base metal OQ and an abrasive grain part are attached to the outer peripheral edge of the alloy (IO). A base portion (12+) made of, for example, phenol resin is formed to adhere to αυ.

この下地部0乃は台金OQlを成形型に組込み、モール
ド成形により作ることができる。つぎに、この下地部(
lりを形成した台金00を下地部外周との間に所定寸法
の環状溝を構成するホットプレス成形型に組込む。
This base portion 0 can be made by incorporating the base metal OQl into a mold and molding it. Next, this base part (
The base metal 00 with the rounded edges is assembled into a hot press mold forming an annular groove of a predetermined size between it and the outer periphery of the base portion.

砥粒部(11)の形成は、まず、所要粒度の砥粒部9を
選択し、この砥粒部に所要の金属を所要の厚さに被覆す
る。この金属被膜ueの形成はめっき、真空蒸着などの
手段でおこなうことができる。つぎに、この金属被覆砥
粒に所要のセラミックス微粒子(1咎および結合剤(1
7>としてフェノール樹脂を加え均一に混合する。そし
て、この混合物を上記下地部住りとホットプレス成形型
との間の譲状溝に充填する。
To form the abrasive grain portion (11), first, the abrasive grain portion 9 of a desired grain size is selected, and this abrasive grain portion is coated with a required metal to a desired thickness. The metal coating ue can be formed by plating, vacuum deposition, or the like. Next, the required ceramic fine particles (1 piece) and binder (1 piece) are added to the metal-coated abrasive grains.
7> Add phenol resin and mix uniformly. Then, this mixture is filled into the groove between the base portion and the hot press mold.

しかるのち、これを台金α@、ホットプレス成形型とと
もに加熱し、一定温度に保ちながらホットプレス成形す
る。このホットプレス成形における加熱加圧の条件は被
覆金属の種類、結合剤αDの種類。
Thereafter, this is heated together with the base metal α@ and a hot press mold, and hot press molded while maintaining the temperature at a constant temperature. The heating and pressing conditions in this hot press molding depend on the type of coating metal and the type of binder αD.

金属被覆量、結合剤鰭およびセラミックス粉末の混合量
などによって異なるが、フェノール樹脂を結合剤α力と
する場合は175〜260℃に保持して150〜35(
MC9/cIltの範囲で成形される。
It varies depending on the amount of metal coating, the amount of binder fin and ceramic powder mixed, etc., but when using phenolic resin as the binder α force, the temperature is maintained at 175-260℃ and the temperature is 150-35℃ (
Molded in the MC9/cIlt range.

上記加熱加圧によって、砥粒(15)の被覆金属は塑性
変形して隣接砥粒(l騰を被覆する金属被膜Ileと密
着して一体化し、配合したセラミックス粉末の大部分を
結合剤(17)中に分散させる。また、上記加熱加圧は
結合創面中に包含される気泡を放出させ、気泡の少い緻
密構造の砥粒部Iを形成する。
By heating and pressurizing, the metal coating of the abrasive grains (15) is plastically deformed and becomes closely integrated with the metal coating Ile covering the adjacent abrasive grains (15), and most of the blended ceramic powder is transferred to the binder (17 ).Furthermore, the heating and pressurization described above releases air bubbles contained in the bonded wound surface, forming an abrasive grain portion I having a dense structure with few air bubbles.

つぎに、この砥石の性能について述べる。Next, we will discuss the performance of this grindstone.

第4図は金属被膜(旧としてNiを56wt%被覆した
粒度分布100/ 120μm($ 100〜# 15
0)のダイヤモンド砥粒を用い、とのNi被覆ダイヤモ
ンド砥粒を結合剤としてのフェノール樹脂に47vo1
%混合し、さらに、セラミックス微粒子(1樟として粒
度の異な配合した砥石は、結合剤1t7)への配合量が
3〜25VO1%粒の保持力が大きくなることを意味す
る。
Figure 4 shows the particle size distribution of metal coating (formerly 56 wt% Ni) with particle size distribution 100/120 μm ($100~#15).
Using diamond abrasive grains of 0), Ni-coated diamond abrasive grains of 47vol.
% mixed, and furthermore, the holding power of 3 to 25 VO1% grains added to ceramic fine particles (a grindstone with different particle sizes as 1 camphor is a binder 1t7) is increased.

レジノイド砥石(C)と比較して示したものである。This is shown in comparison with the resinoid grindstone (C).

この評価試験は被剛材としてALNを用い、汎用平面研
削盤にて、砥石回転周速度1800 m/mi n 、
砥石切込量60μm/ pa 8S *テーブル移動速
度(被剛材移動速度) 20.6m/min (砥石(
C)については151’ll/ff11n)第 1 表 で湿式でおこなった結果である。砥石(B)は本願の先
願(特願昭57−77733号)に係る砥石であるが、
この砥石(B)にくらベセラミックス微粒子(l樽を配
合した本願砥石(A)はすべての評価項目についてすぐ
れ、特に砥石寿命を示す研削比について一段とすぐれ、
通常のレジノイド2ダイヤモンド砥石(C)にくらべて
格段にすぐれている。このような研削性能向上の理由は
必ずしも明らかでないが、第1には、前述のようにセラ
ミックス微粒子の配合より砥粒保持力が増し、砥粒α9
の脱落を防いでいること、第2には、セラミックス微粒
子Q樽が結合剤(1ηの減耗を防ぎ、この結合剤減耗に
起因する砥粒(15)の脱落を防止すること、第3には
、セラミックス微粒子1段が直接被削材を研削すること
などによる複合作用に基づくものと考えられる。
In this evaluation test, ALN was used as the rigid material, and a general-purpose surface grinder was used at a grinding wheel rotational speed of 1800 m/min,
Grinding wheel cutting depth 60μm/pa 8S *Table movement speed (rigid material movement speed) 20.6m/min (Whetstone (
Regarding C), 151'll/ff11n) Table 1 shows the results obtained using the wet method. The whetstone (B) is the whetstone related to the earlier application of the present application (Japanese Patent Application No. 77733/1982),
The grindstone (A) of the present invention, in which Kurabe ceramic fine particles (1 barrel) are added to the grindstone (B), is excellent in all evaluation items, and in particular is even better in terms of the grinding ratio, which indicates the life of the grindstone.
It is much superior to the regular Resinoid 2 Diamond Grindstone (C). The reason for this improvement in grinding performance is not necessarily clear, but the first reason is that, as mentioned above, the abrasive grain retention is increased by the combination of ceramic fine particles, and the abrasive grain α9
The second reason is that the ceramic fine particle Q barrel prevents the depletion of the binder (1η) and prevents the abrasive grains (15) from falling off due to this depletion of the binder. This is thought to be based on the combined effect of one stage of ceramic fine particles directly grinding the work material.

第2表は特に仕上用砥石として開発した本願砥石(A)
の研削性能を従来の仕上用砥石(DXE)と比較して示
したものであり、第5図にこれら砥石(K)(D)(B
)の研削動力の変化を示した。なお、被削材および試験
条件は第1表の場合と同じである。
Table 2 shows the Hongan whetstone (A), which was developed especially as a finishing whetstone.
Fig. 5 shows the grinding performance of these grinding wheels (K), (D), and (B) in comparison with a conventional finishing whetstone (DXE).
) shows the change in grinding power. Note that the work material and test conditions are the same as in Table 1.

第 2 表 この第5図において、一点鎖線で示した直線(L)は砥
石が目づまりしたときの研削動力レベルであって、従来
の仕上用砥石(E)は曲線(li)で示すように最初か
ら目づまりをおこし、正常な研削ができないことを示し
ている。また、砥石(D)についてL1切込回数15回
で目づま、りをおこしているが、目づまりせず、正常な
研削能力を維持している。
Table 2 In this Figure 5, the straight line (L) shown by the dashed line is the grinding power level when the grindstone becomes clogged, and the conventional finishing grindstone (E) is as shown by the curve (li). This indicates that the grinding is clogged from the beginning and normal grinding is not possible. In addition, although the grindstone (D) became clogged and clogged after 15 L1 cuts, it did not clog and maintained normal grinding ability.

ケラトを生成する第4の作用効果を奏するためと考える
It is thought that this is because it achieves the fourth effect of generating kerato.

砥石(A)の砥石減耗などの性能が従来砥石(D)(E
)にくらべてずぐれていることは前述の砥石(A)と同
様であるが、仕上用砥石の重要計画項目の一つである面
あらさについても、本願砥石(A)は従来砥石(D)に
くらべて一段とすぐれていることが以上、ダイヤモンド
砥粒をNi被覆し、このNi被覆を相互に密着するとと
もに、結合剤としてフェノール樹脂を用い、この結合剤
中に81sNJ&粒子を配合した砥石について述べたが
、砥粒、被覆金属。
The performance of whetstone (A) in terms of wear and tear is lower than that of conventional whetstone (D) (E).
) is the same as the above-mentioned whetstone (A), but in terms of surface roughness, which is one of the important planning items for finishing whetstones, the original whetstone (A) is superior to the conventional whetstone (D). The above describes a grindstone in which the diamond abrasive grains are coated with Ni, the Ni coatings are adhered to each other, and a phenol resin is used as a binder, and 81sNJ & particles are mixed in the binder. However, abrasive grains and coated metals.

結合剤およびセラミック微粒子の種類は上記実施例に限
定されるものでなく、前記各種のものを用いても同様の
作用効果を奏する。
The types of binder and ceramic fine particles are not limited to those in the above embodiments, and similar effects can be achieved even if the various types described above are used.

また、超砥粒を被覆する金属被膜は必ずしも相互に密着
していることを要しない。また、超砥粒を金属で被覆せ
ず、直接結合剤で保持する構造のに金属被膜を形成する
ことは任意である。しかし、この場合はその被膜の厚さ
を超砥粒の金属被膜より薄くする方がよい。
Further, the metal coatings covering the superabrasive grains do not necessarily need to be in close contact with each other. Further, it is optional to form a metal coating even in a structure in which the superabrasive grains are not coated with metal but directly held with a binder. However, in this case, it is better to make the thickness of the coating thinner than the metal coating of the superabrasive grain.

〔発明の効果〕〔Effect of the invention〕

超砥粒を結合剤で保持し、この結合剤中にセラミック微
粒子を配合すると、下記作用効果を奏する。
When superabrasive grains are held by a binder and ceramic fine particles are blended into this binder, the following effects are achieved.

(1)セラミックス微粒子を配合しない砥石にくらべて
砥粒保持力が大きくなり、砥粒の脱落すなわち砥粒の減
耗が軽減する。
(1) Compared to a whetstone that does not contain ceramic fine particles, the abrasive retention force is increased, and the shedding of abrasive grains, that is, the wear and tear of abrasive grains is reduced.

(2)結合剤中に配合されたセラミックス微粒子が結合
剤の減耗を防ぎ、結合剤減耗に起因する砥粒の脱落すな
わち砥石の減耗を軽減する。
(2) Ceramic fine particles blended into the binder prevent wear of the binder and reduce drop-off of abrasive grains, ie wear of the grindstone, caused by wear of the binder.

(3)結合剤中に配合されたセラミックス微粒子が超砥
粒とともに被剛材を研削するため、従来砥石にくらべて
一段と研削性能が向上する。
(3) Since the fine ceramic particles mixed in the binder grind the hardened material together with the superabrasive grains, the grinding performance is further improved compared to conventional grindstones.

(4)セラミックス微粒子の脱落により適度のチップポ
ケットが生成され、目づまりが防止される。
(4) Appropriate chip pockets are generated by shedding of the ceramic fine particles, and clogging is prevented.

(5)超砥粒とセラミックス微粒子との複合研削作用に
より、研削加工面の面あらさを減少することができる。
(5) Due to the combined grinding action of superabrasive grains and ceramic fine particles, the roughness of the ground surface can be reduced.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図はこの発明の先願の砥石の構造図、第2図はこの
発明の一実施例である砥石の図であって、(A)図は一
部切欠平面図、(B)図は一部切欠断面図、第3図は第
2図示砥石の砥粒部の構造図、第4図はこの発明の砥石
の抗折力を示す図、第5図は同じく研削動力を示す図で
ある。 (in :台 金 (IU:砥粒部 (IS :ダイヤモンド砥粒(超砥粒)lie : N
i 被膜(、金Jti+am )+1’l) : 81
3N4微粒子(セラミックス微粒子)α榎:結合剤
Fig. 1 is a structural diagram of a grindstone according to a prior application of the present invention, and Fig. 2 is a diagram of a grindstone according to an embodiment of the present invention, in which (A) is a partially cutaway plan view, and (B) is a partially cutaway plan view. FIG. 3 is a structural diagram of the abrasive grain portion of the grindstone shown in FIG. 2, FIG. 4 is a diagram showing the transverse rupture force of the grindstone of the present invention, and FIG. 5 is a diagram showing the grinding power as well. . (in: base metal (IU: abrasive grain part (IS: diamond abrasive grain (super abrasive grain) lie: N
i coating (, gold Jti+am)+1'l): 81
3N4 fine particles (ceramics fine particles) α Enoki: Binder

Claims (4)

【特許請求の範囲】[Claims] (1)超砥粒と、との超砥粒を多数保持する結合剤と、
上記結合剤中に配合されたセラミックス微粒子とを具備
することを特徴とする砥石。
(1) a binder that holds a large number of superabrasive grains;
A grindstone characterized by comprising ceramic fine particles blended in the above-mentioned binder.
(2)セラミックス微粒子の粒度が超砥粒の粒度より小
さいことを特徴とする特許請求の範囲第1項記載の砥石
(2) The grindstone according to claim 1, wherein the particle size of the ceramic fine particles is smaller than the particle size of the superabrasive grains.
(3)超砥粒はその表面を被覆する金属被膜を有しこの
金属被膜を介して結合剤により保持されていることを特
徴とする特許請求の範囲第1項または第2項記載の砥石
(3) The grindstone according to claim 1 or 2, wherein the superabrasive grains have a metal coating covering the surface thereof and are held by a binder via the metal coating.
(4)超砥粒を被覆する金属被膜が隣接超砥粒を被覆す
る金属被膜と密接し一体化していることを特徴とする特
許請求の範囲第2項記載の砥石。
(4) The grindstone according to claim 2, wherein the metal coating covering the superabrasive grains is closely integrated with the metal coating coating the adjacent superabrasive grains.
JP19403483A 1983-10-19 1983-10-19 Grindstone Pending JPS6085869A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19403483A JPS6085869A (en) 1983-10-19 1983-10-19 Grindstone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19403483A JPS6085869A (en) 1983-10-19 1983-10-19 Grindstone

Publications (1)

Publication Number Publication Date
JPS6085869A true JPS6085869A (en) 1985-05-15

Family

ID=16317835

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19403483A Pending JPS6085869A (en) 1983-10-19 1983-10-19 Grindstone

Country Status (1)

Country Link
JP (1) JPS6085869A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002103232A (en) * 2000-09-26 2002-04-09 Tkx:Kk Grinding tool and its manufacturing method
WO2019208640A1 (en) * 2018-04-27 2019-10-31 住友電気工業株式会社 Polycrystalline abrasive grains, and grinding wheel provided with same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002103232A (en) * 2000-09-26 2002-04-09 Tkx:Kk Grinding tool and its manufacturing method
WO2019208640A1 (en) * 2018-04-27 2019-10-31 住友電気工業株式会社 Polycrystalline abrasive grains, and grinding wheel provided with same

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