JPH05162080A - Hard abrasive grain electrodeposited grinding wheel - Google Patents
Hard abrasive grain electrodeposited grinding wheelInfo
- Publication number
- JPH05162080A JPH05162080A JP3350660A JP35066091A JPH05162080A JP H05162080 A JPH05162080 A JP H05162080A JP 3350660 A JP3350660 A JP 3350660A JP 35066091 A JP35066091 A JP 35066091A JP H05162080 A JPH05162080 A JP H05162080A
- Authority
- JP
- Japan
- Prior art keywords
- abrasive grains
- hard abrasive
- grinding
- grinding wheel
- grindstone
- 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.)
- Withdrawn
Links
Landscapes
- Polishing Bodies And Polishing Tools (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明はアランダム系、または
コランダム系の砥石を基体とし、該基体の表面に無電解
ニッケルメッキを施すことにより該基体に導電性を与
え、さらに基体の表面にダイヤモンド、あるいはＣＢＮ
等の硬質砥粒を電着した硬質砥粒電着砥石に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention uses an alundum-based or corundum-based grindstone as a base, and imparts electroconductivity to the surface of the base to impart electroconductivity to the base. , Or CBN
The present invention relates to a hard abrasive grain electrodeposition grindstone in which hard abrasive grains such as the above are electrodeposited.
【０００２】[0002]
【従来の技術】従来の電着砥石では、その台金となる基
体に金属、例えば鉄系金属で構成されており、その表面
にダイヤモンド、ＣＢＮ等の硬質砥粒を電着したもので
あった。また、従来から一般に市販されているアランダ
ム系、またはコランダム系の研削砥石に無電解ニッケル
メッキを施して導電性を与えた電解研削砥石もある（特
公昭４８−３３０７７号公報参照）。しかし、これは単
に電解研削を目的とした砥石であるに過ぎない。2. Description of the Related Art In a conventional electrodeposition grindstone, a base body which is a base metal of the grindstone is composed of a metal, for example, an iron-based metal, and hard abrasive grains such as diamond and CBN are electrodeposited on the surface thereof. .. In addition, there is also an electrolytic grinding wheel which has been made commercially available by applying electroless nickel plating to an alundum type or corundum type grinding wheel which has been generally commercially available (see Japanese Patent Publication No. 48-33077). However, this is merely a grindstone intended for electrolytic grinding.
【０００３】[0003]
【発明が解決しようとする課題】上記のように、一般的
に硬質砥粒電着砥石の基体には鉄系金属が用いられてお
り、該砥石の基体の表面に硬質砥粒を電着している。基
体は鉄系金属製であるため、その整形に際しては、まず
外周の旋削を行い、次いでその外周を研削しなければな
らない。従って加工時間が非常に長くかかる。また、そ
の基体の表面は平坦であるために、一層の硬質砥粒しか
固着できない。それゆえ、この研削砥石を用いて研削を
行った場合には、図４に示すように、通常の鉄系電着砥
石は、鉄系の基体６ａの表面上に固着された均一な硬質
砥粒１が一層に電着されているため、一層の各硬質砥粒
１が摩耗してしまったときが、即砥石の寿命となる。こ
のために寿命が極めて短くなるという問題がある。更
に、砥石が大型になる程基体が大きくなり、重量が大で
取扱いにくい上に、高価になる等の数々の課題が存在し
た。As described above, iron-based metals are generally used for the base of hard abrasive grain electrodeposition grindstone, and hard abrasive grains are electrodeposited on the surface of the base body of the grindstone. ing. Since the base body is made of iron-based metal, when shaping the base body, the outer periphery must first be turned and then the outer periphery must be ground. Therefore, the processing time is very long. Further, since the surface of the base is flat, only one layer of hard abrasive grains can be fixed. Therefore, when grinding is performed using this grinding whetstone, as shown in FIG. 4, a normal iron-based electrodeposition grindstone has uniform hard abrasive grains fixed on the surface of the iron-based base 6a. Since 1 is electro-deposited on one layer, when the hard abrasive grains 1 on one layer are worn out, the life of the grindstone immediately becomes. Therefore, there is a problem that the life is extremely shortened. Further, the larger the grindstone, the larger the base body becomes, which is heavy and difficult to handle, and there are various problems such as being expensive.
【０００４】[0004]
【課題を解決するための手段】本発明は、塩化パラジウ
ムを用いてその表面に無電解ニッケルメッキが施されて
電導性を与えられ、かつ所望の形状を付与されたアラン
ダム系、又はコランダム系の研削砥石と、該研削砥石を
基体として、その表面にダイヤモンド・ＣＢＮ等の硬質
砥粒が電気ニッケルメッキにて固着されて硬質砥粒電着
砥石としたものであり、長寿命で軽量の砥石としたもの
である。DISCLOSURE OF THE INVENTION The present invention is directed to an alundum system or a corundum system in which palladium chloride is used to electrolessly nickel-plat the surface of the palladium to give conductivity and a desired shape is imparted. The grindstone of No. 1 and a hard grind electrodeposition grindstone in which hard grindstones such as diamond and CBN are fixed on the surface of the grindstone by electro nickel plating, and the grindstone has a long life and is lightweight. It is what
【０００５】[0005]
【作用】本発明に係る硬質砥粒電着砥石によれば、アラ
ンダム系、又はコランダム系の研削砥石には、その外周
に微小な凹凸があるが、これを所望の形状にドレッサー
等で整形すると、その表面に微小な凹凸が残り、その凹
凸に沿って硬質砥粒が固着される。そこで、研削を始め
ると、まず凸部分の硬質砥粒が研削に関与する。この部
分の砥粒が摩耗すると、今まで研削に関与していなかっ
た凹部分の硬質砥粒が研削に入り、これが摩耗してしま
い、すべての砥粒が摩耗してしまうまで研削することが
出来るようになる。According to the hard abrasive grain electrodeposition grindstone according to the present invention, an alundum type or corundum type grinding wheel has fine irregularities on its outer periphery, which are shaped into a desired shape by a dresser or the like. Then, minute unevenness remains on the surface, and hard abrasive grains are fixed along the unevenness. Therefore, when grinding is started, first, the hard abrasive grains on the convex portion participate in the grinding. When the abrasive grains in this part wear, the hard abrasive grains in the recesses, which have not been involved in the grinding until now, start to grind, and this is worn, and it is possible to grind until all the abrasive grains are worn Like
【０００６】[0006]
【実施例】いま、アランダム系の研削砥石を所望の形状
にドレッサー等で整形した後、有機溶剤等でよく洗浄し
て油脂分、塵埃等を除去してから乾燥し、次いで１／１
０００から１／１００００の塩化パラジウム溶液に浸漬
して、塩化パラジウムを砥石内部に至るまで吸着させた
後に再び乾燥を行った。[Examples] Now, after grinding an alundum type grinding wheel into a desired shape with a dresser or the like, it is thoroughly washed with an organic solvent or the like to remove oil and fat, dust and the like, and then dried.
It was immersed in a palladium chloride solution of 000 to 1/10000 to adsorb palladium chloride to the inside of the grindstone, and then dried again.
【０００７】次に、この前処理を終えた砥石を無電解メ
ッキ液にてニッケルメッキを施した。メッキの膜厚とし
ては導電性を与えるだけなので数ミクロンで十分であ
る。無電解メッキ液として、硫酸ニッケル、クエン酸ナ
トリウム、次亜リン酸ソーダなどを含む高濃度のメッキ
液を用いる。Next, the whetstone after this pretreatment was nickel-plated with an electroless plating solution. As the film thickness of the plating, only a few microns are sufficient since it only gives conductivity. As the electroless plating solution, a high-concentration plating solution containing nickel sulfate, sodium citrate, sodium hypophosphite, or the like is used.
【０００８】上記ニッケルメッキを終了した後、硬質砥
粒を電着する表面以外は、マスキング剤にて覆った後、
電気ニッケルメッキ浴でＣＢＮ砥粒（＃１２０／１４
０）の固着を行い、所定の砥粒埋め込み量（砥粒径の６
０から７０％）までニッケルメッキを施して電着砥石を
形成した。After completion of the nickel plating, after covering with a masking agent except for the surface on which hard abrasive grains are electrodeposited,
CBN abrasive grains (# 120/14
0) is fixed, and a predetermined amount of embedded abrasive grains (abrasive grain size of 6
(0 to 70%) was nickel-plated to form an electrodeposition grindstone.
【０００９】図１は本発明の硬質砥粒を電着した電着砥
石の実施例の一部断面図であり、アランダム系、又はコ
ランダム系の砥石６の表面をダイヤモンドドレッサーで
整形した基体砥石に数ミクロンの膜厚の無電解メッキ層
４をつけた後、硬質砥粒（本実施例ではＣＢＮ砥粒）を
電着しものである。砥石表面はドレッサーされているが
微小な凹凸が形成され、その微小な凹凸に沿って砥粒が
電気ニッケルメッキにより砥粒が固着される。砥粒は
１、２、３で示すように砥石表面の凹凸に沿って無数の
砥粒が電着されている。従って、最外側の砥粒１が摩耗
すると、次に砥粒２が切れ刃となる。さらに、砥粒２が
摩耗すると次に砥粒３が切れ刃となるように順次切れ刃
が形成されて研削が行われるのである。このために砥石
の研削寿命は大幅に向上した。FIG. 1 is a partial cross-sectional view of an embodiment of an electrodeposition grindstone on which hard abrasive grains of the present invention are electrodeposited. A base grindstone in which the surface of an alundum or corundum grindstone 6 is shaped with a diamond dresser. After the electroless plating layer 4 having a film thickness of several microns is formed on the surface of the substrate, hard abrasive grains (CBN abrasive grains in this embodiment) are electrodeposited. The surface of the grindstone is dressed, but minute irregularities are formed, and the abrasive grains are fixed along the minute irregularities by electro nickel plating. As shown in 1, 2, and 3, the abrasive grains are electrodeposited with numerous abrasive grains along the irregularities on the surface of the grindstone. Therefore, when the outermost abrasive grain 1 is worn, the abrasive grain 2 then becomes a cutting edge. Further, when the abrasive grains 2 wear, the cutting edges are sequentially formed so that the abrasive grains 3 become the cutting edges, and the grinding is performed. For this reason, the grinding life of the grindstone has been significantly improved.
【００１０】いま、本発明に係る硬質砥粒電着砥石を生
産する場合の一例を示す。φ１４５×２５×φ７６．２
の寸法のアランダム系砥石（ＷＡ＃８０）と、鉄系砥石
（Ｓ４５Ｃ）の外周を整形しその外周に前記手段により
ＣＢＮ砥粒を電着した。この基体の異なる２個の電着砥
石を用いて、図３に示すように材質ＳＫＨ５１（ＨＲＣ
６４から６７）のテストピース７の研削を、砥石周速１
５００ｍ／ｍｉｎ、送り速度１５ｍ／ｍｉｎ、切り込み
量０．００５ｍｍ／回の条件で平面研削テストを行った
結果、従来品では砥粒摩耗量が０．９６ｃｍ3 で切削不
能となり寿命となった。この時点における切削量は１，
０６５ｃｍ3 であり、これを研削量／砥粒摩耗量（体積
比）でみると、１，０６５ｃｍ3 ／０．９６ｃｍ3 ≒
１，１０９であった。これに対し、本発明によれば、砥
粒摩耗量が１．２５ｃｍ3 で切削不可能となり寿命とな
った。この時点における切削量は２，５９３ｃｍ3 であ
り、これを切削量／砥粒摩耗量（体積比）でみると、
２，５９３ｃｍ3 ／１．２５ｃｍ3 ≒２，０７５であっ
た。従って、本発明に係る電着砥石によれば従来の鉄系
電着砥石の約２倍の寿命があることが分かる。しかも、
重量も従来品に比して約１／４となり、きわめて軽量と
なった。An example of producing a hard abrasive grain electrodeposition grindstone according to the present invention will now be described. φ145 x 25 x φ76.2
The outer circumferences of the alundum-based grindstone (WA # 80) and the iron-based grindstone (S45C) having the above dimensions were shaped, and CBN abrasive grains were electrodeposited on the outer circumference by the above means. As shown in FIG. 3, the material SKH51 (HRC
Grinding the test piece 7 from 64 to 67) with a grinding wheel peripheral speed of 1
As a result of performing a surface grinding test under the conditions of 500 m / min, feed rate of 15 m / min, and depth of cut of 0.005 mm / cycle, the conventional product had an abrasive wear amount of 0.96 cm 3 and could not be cut, resulting in a life. The cutting amount at this point is 1,
It is 065 cm 3 , and when viewed from the grinding amount / abrasive wear amount (volume ratio), it is 1,065 cm 3 /0.96 cm 3 ≈
It was 1,109. On the other hand, according to the present invention, when the abrasion amount of the abrasive grains is 1.25 cm 3 , it becomes impossible to cut and the life is reached. The cutting amount at this point is 2,593 cm 3 , and when this is seen from the cutting amount / abrasive wear amount (volume ratio),
It was 2,593cm 3 /1.25cm 3 ≒ 2,075. Therefore, it can be seen that the electrodeposition grindstone according to the present invention has a life approximately twice that of the conventional iron-based electrodeposition grindstone. Moreover,
The weight is about 1/4 of that of the conventional product, which is extremely lightweight.
【００１１】[0011]
【効果】本発明に係る電着砥石によれば、市販のアラン
ダム系、又はコランダム系の砥石を基体に用いたのでダ
イヤモンドドッレサー等で簡単に整形でき、所望の形状
に容易に整形ができるのであり、整形工数は大幅に縮小
された。また、基体となる砥石は鉄系基体の約１／１０
の価格であるので、きわめて安価となった。しかも、基
体は上記のようにアランダム系、又はコランダム系であ
るから、鉄系に比較してその重量は１／３から１／５と
軽量となり、取り扱いやすくなり、大型の電着砥石の製
作も可能になった。また、前記砥石をダイヤモンドドッ
レサー等で整形し微小な凹凸の表面に無電解メッキした
のち、その表面に電気ニッケルメッキにて硬質砥粒を固
着したので、表面に出ている切れ刃となる砥粒が摩耗し
ても順次第２切れ刃、第３切れ刃が研削に当たることが
でき砥石寿命が約２倍という大幅な延長が実現した、な
どの顕著な効果を奏する。[Effect] According to the electrodeposited grindstone of the present invention, since a commercially available alundum-based or corundum-based grindstone is used for the base, it can be easily shaped with a diamond dresser or the like, and can be easily shaped into a desired shape. Therefore, the number of orthopedic man-hours has been greatly reduced. Moreover, the grindstone as the base is about 1/10 of the iron-based base.
Since it is the price of, it became extremely cheap. Moreover, since the base body is an alundum type or a corundum type as described above, the weight is 1/3 to 1/5 of that of an iron type, which makes it easy to handle and makes a large electrodeposition grindstone. Is also possible. Further, after the grindstone was shaped with a diamond dresser or the like and electroless plated on the surface of minute irregularities, hard abrasive grains were fixed by electronickel plating on the surface, so that a cutting edge that became a cutting edge on the surface Even if the grains are worn, the second cutting edge and the third cutting edge can be sequentially brought into contact with each other for grinding, and the life of the grindstone is substantially doubled, which is a remarkable effect.
【図１】この発明の硬質砥粒電着砥石の一部断面図であ
る。FIG. 1 is a partial cross-sectional view of a hard abrasive grain electrodeposition grindstone of the present invention.
【図２】図１の断面図である。FIG. 2 is a cross-sectional view of FIG.
【図３】電着砥石によるテストピースの研削略図であ
る。FIG. 3 is a schematic diagram of grinding a test piece with an electrodeposition grindstone.
【図４】従来鉄系電着砥石である。FIG. 4 is a conventional iron-based electrodeposition grindstone.
１．．．．．．．．硬質砥粒（ダイヤモンド、ＣＢＮ
等） ４．．．．．．．．無電解メッキ ５．．．．．．．．電気ニッケルメッキ ６．．．．．．．．基体 ７．．．．．．．．テストピース1. ． ． ． ． ． ． ． Hard abrasive grains (diamond, CBN
Etc.) 4. ． ． ． ． ． ． ． Electroless plating 5. ． ． ． ． ． ． ． Electro nickel plating 6. ． ． ． ． ． ． ． Substrate 7. ． ． ． ． ． ． ． Test piece
Claims (1)
解ニッケルメッキが施されて電導性を与えられ、かつ所
望の形状を付与されたアランダム系、又はコランダム系
の研削砥石と、該研削砥石を基体として、その表面にダ
イヤモンド・ＣＢＮ等の硬質砥粒が電気ニッケルメッキ
にて固着された硬質砥粒電着砥石。1. An alundum-based or corundum-based grinding whetstone which has been given electroconductivity by applying electroless nickel plating to the surface thereof using palladium chloride, and the grinding whetstone. A hard abrasive grain electrodeposition grindstone in which hard abrasive grains such as diamond and CBN are adhered to the surface by electro nickel plating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3350660A JPH05162080A (en) | 1991-12-12 | 1991-12-12 | Hard abrasive grain electrodeposited grinding wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3350660A JPH05162080A (en) | 1991-12-12 | 1991-12-12 | Hard abrasive grain electrodeposited grinding wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05162080A true JPH05162080A (en) | 1993-06-29 |
Family
ID=18411996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3350660A Withdrawn JPH05162080A (en) | 1991-12-12 | 1991-12-12 | Hard abrasive grain electrodeposited grinding wheel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05162080A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6419574B1 (en) | 1999-09-01 | 2002-07-16 | Mitsubishi Materials Corporation | Abrasive tool with metal binder phase |
| US6875098B2 (en) | 2000-01-19 | 2005-04-05 | Mitsubishi Materials Corporation | Electroplated grinding wheel and its production equipment and method |
| WO2009068225A1 (en) * | 2007-11-29 | 2009-06-04 | Ab Skf | Coating arrangement |
| CN109382770A (en) * | 2017-08-03 | 2019-02-26 | 郑州磨料磨具磨削研究所有限公司 | A kind of abrasive compound grinding wheel and preparation method thereof |
| CN112643546A (en) * | 2020-12-25 | 2021-04-13 | 郑州磨料磨具磨削研究所有限公司 | Electroplated diamond dressing roller for ceramic CBN grinding wheel and preparation method thereof |
-
1991
- 1991-12-12 JP JP3350660A patent/JPH05162080A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6419574B1 (en) | 1999-09-01 | 2002-07-16 | Mitsubishi Materials Corporation | Abrasive tool with metal binder phase |
| US6875098B2 (en) | 2000-01-19 | 2005-04-05 | Mitsubishi Materials Corporation | Electroplated grinding wheel and its production equipment and method |
| WO2009068225A1 (en) * | 2007-11-29 | 2009-06-04 | Ab Skf | Coating arrangement |
| US9951427B2 (en) | 2007-11-29 | 2018-04-24 | Aktiebolaget Skf | Coating arrangement |
| CN109382770A (en) * | 2017-08-03 | 2019-02-26 | 郑州磨料磨具磨削研究所有限公司 | A kind of abrasive compound grinding wheel and preparation method thereof |
| CN109382770B (en) * | 2017-08-03 | 2020-10-23 | 郑州磨料磨具磨削研究所有限公司 | Composite abrasive grinding wheel and preparation method thereof |
| CN112643546A (en) * | 2020-12-25 | 2021-04-13 | 郑州磨料磨具磨削研究所有限公司 | Electroplated diamond dressing roller for ceramic CBN grinding wheel and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19990311 |