JPH05111875A - Electrodeposition tool and manufacturing thereof - Google Patents
Electrodeposition tool and manufacturing thereofInfo
- Publication number
- JPH05111875A JPH05111875A JP3278037A JP27803791A JPH05111875A JP H05111875 A JPH05111875 A JP H05111875A JP 3278037 A JP3278037 A JP 3278037A JP 27803791 A JP27803791 A JP 27803791A JP H05111875 A JPH05111875 A JP H05111875A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- abrasive grain
- abrasive grains
- abrasive
- electrodeposition
- 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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、各種材料の研削及び研
磨等に用いる電着工具、より詳しくは、台金表面に電着
法によって砥粒層を形成した軸付砥石、平型砥石、切断
砥石、精密用組やすり、ハンドファイリングマシン用や
すり、歯科用のデンタル工具等の電着工具及びその製造
方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrodeposition tool used for grinding and polishing various materials, and more particularly to a shaft-attached grindstone having an abrasive grain layer formed on the surface of a base metal by an electrodeposition method, a flat grindstone, The present invention relates to an electrodeposition tool such as a cutting grindstone, a precision file, a file for a hand filing machine, and a dental dental tool, and a method for manufacturing the same.
【０００２】[0002]
【従来の技術】従来の電着工具は、通電性を持った台金
の表面に超砥粒（ダイヤモンド，ｃＢＮ）を散布し、電
着ニッケルメッキ等で強固に保持した砥粒層構造のもの
が使用されている。2. Description of the Related Art A conventional electrodeposition tool has an abrasive grain layer structure in which superabrasive grains (diamond, cBN) are dispersed on the surface of a base metal having electrical conductivity and firmly held by electrodeposition nickel plating or the like. Is used.
【０００３】この砥粒層構造は、砥粒が高密度で突出し
の大きい構造となっており、他の焼結型超砥粒砥石に比
べて、切れ味に優れ、高能率研削が可能である。このた
め、歯科用のデンタル工具、またＩＣ基板の加工に用い
るマイクロドリルといった比較的小型のものから、フェ
ライトコアに用いるような大型のものまで、非常に広範
囲に使用されている。This abrasive grain layer structure has a high density of abrasive grains and a large protrusion, and is superior in sharpness and capable of high-efficiency grinding as compared with other sintered superabrasive grain grindstones. Therefore, it is used in a very wide range from dental dental tools and relatively small tools such as micro drills used for processing IC substrates to large tools used for ferrite cores.
【０００４】殊に、最近の傾向として、いわゆる精密加
工の要求分野が増加し、加工に用いる工具に対しても、
従来考えられなかったような精度が要求され、また製品
寿命の向上が最大の課題となっている。In particular, as a recent trend, the fields required for so-called precision machining have increased, and even for tools used for machining,
Accuracy that has never been considered is required, and the improvement of product life is the biggest issue.
【０００５】[0005]
【発明が解決しようとする課題】ところが、従来の電着
工具の砥粒層構造は、台金の表面に超砥粒を散布し、こ
れを電着ニッケルメッキによって固着した薄い単層構造
である。このため、砥粒の保持力には優れるものの、研
削或いは研磨可能な砥粒層そのものの厚みが薄く、砥粒
の２０％〜３０％が摩耗した時点で研削抵抗が上昇して
脱落し、製品寿命が短いという欠点がある。However, the abrasive grain layer structure of the conventional electrodeposition tool is a thin single layer structure in which superabrasive grains are dispersed on the surface of the base metal and fixed by electrodeposition nickel plating. .. For this reason, although the abrasive grain retaining force is excellent, the thickness of the abrasive grain layer itself that can be ground or polished is thin, and when 20% to 30% of the abrasive grains are worn, the grinding resistance increases and falls off. It has a short life.
【０００６】そこで、本発明は、電着工具における砥粒
層構造の上記問題点を解消するものであり、従来単層で
ある砥粒層を多層構造として、電着工具の特徴である優
れた切れ味を保持しつつ、製品寿命のアップを図ること
を目的とする。Therefore, the present invention solves the above-mentioned problems of the abrasive grain layer structure in the electrodeposition tool. The conventional abrasive grain layer, which is a single layer, has a multi-layer structure, which is a characteristic feature of the electrodeposition tool. The purpose is to extend the product life while maintaining the sharpness.
【０００７】[0007]
【課題を解決するための手段】本発明は、上記目的を達
成するために、電着法によって台金に砥粒層を固着した
電着工具であって、前記砥粒層を２層以上の多層構造と
したことを特徴とする。In order to achieve the above object, the present invention is an electrodeposition tool in which an abrasive grain layer is fixed to a base metal by an electrodeposition method, and the abrasive grain layer comprises two or more layers. It is characterized by having a multilayer structure.
【０００８】また、この電着工具は、台金表面にランダ
ムに散布した砥粒を砥粒粒径の２０ないし３０％厚みの
メッキにより固定して一層目の砥粒層を形成した後、一
層目の砥粒層の表面に再度砥粒を散布し砥粒粒径の３０
ないし６０％のメッキ層を析出させて二層目の砥粒層を
形成することによって製造することができる。なお、ド
レッサ用としては、埋め込み率を１００％にすることも
できる。In this electrodeposition tool, the abrasive grains randomly dispersed on the surface of the base metal are fixed by plating with a thickness of 20 to 30% of the abrasive grain size to form a first abrasive grain layer, Sprinkle the abrasive grains again on the surface of the abrasive grain layer,
Or 60% of the plating layer is deposited to form the second abrasive grain layer. For the dresser, the embedding rate can be 100%.
【０００９】[0009]
【作用】図３は、本発明の電着工具の砥粒の挙動を説明
する図である。FIG. 3 is a diagram for explaining the behavior of the abrasive grains of the electrodeposition tool of the present invention.
【００１０】（ａ）に示すように、二層目の砥粒５が一
層目の砥粒２の隙間に配置されているため、使用初期
は、砥粒５の切刃間隔が広い構造になっており、砥粒５
が被加工材に喰い込みやすく優れた切れ味で研削能率が
大幅に向上する。使用によって二層目の砥粒５が摩耗す
ると、抵抗が大きくなり（ｂ）に示すように砥粒５が脱
落する。この二層目の砥粒５の脱落によって（ｃ）に示
すように一層目の砥粒２が出現し、切刃として作用する
こととなる。As shown in (a), since the second-layer abrasive grains 5 are arranged in the gaps between the first-layer abrasive grains 2, the cutting edge interval of the abrasive grains 5 is wide in the initial stage of use. And abrasive 5
It is easy to bite into the work material and has excellent sharpness, which greatly improves the grinding efficiency. When the second layer of abrasive grains 5 wears due to use, the resistance increases and the abrasive grains 5 fall off as shown in (b). Due to the drop-off of the second-layer abrasive grain 5, the first-layer abrasive grain 2 appears as shown in (c) and acts as a cutting edge.
【００１１】また、一層目及び二層目の砥粒を確実に保
持し、且つ良好な切れ味を確保するためには、電着法に
よって形成するメッキ厚みを、一層目は砥粒粒径の２０
ないし３０％、二層目を３０ないし６０％とし、全体の
メッキ厚みを砥粒粒径の５０ないし８０％とするのが望
ましい。その際、二層目の砥粒の埋込率（メッキ層の厚
みに対する砥粒の高さの割合）を調整することによっ
て、各種作業に適した砥粒層構造とすることができる。
例えば、二層目の砥粒の埋込率を３０〜４０％程度とす
れば、砥粒の突出しが大きく、切れ味のすぐれた軽研削
向きの構造となり、また埋込率を５０〜６０％程度とす
れば、砥粒を強固に保持し重研削作業に適した構造とな
る。Further, in order to securely hold the first and second layers of abrasive grains and to secure a good sharpness, the plating thickness formed by the electrodeposition method is set so that the first layer has an abrasive grain size of 20.
It is desirable that the second layer is 30 to 60%, the total plating thickness is 50 to 80% of the abrasive grain size. At that time, by adjusting the embedding ratio of the second layer of abrasive grains (the ratio of the height of the abrasive grains to the thickness of the plating layer), an abrasive grain layer structure suitable for various operations can be obtained.
For example, if the embedding rate of the second layer of abrasive grains is set to about 30 to 40%, the protrusion of the abrasive grains is large, and the structure is sharp and suitable for light grinding, and the embedding rate is about 50 to 60%. In this case, the abrasive grains are firmly held and the structure is suitable for heavy grinding work.
【００１２】[0012]
【実施例】図１は、本発明の電着工具の砥粒層構造を示
す断面図である。EXAMPLE FIG. 1 is a sectional view showing the abrasive grain layer structure of the electrodeposition tool of the present invention.
【００１３】図において、１は導電性の台金であり、こ
の台金１の表面にダイヤモンド砥粒２が、電着法によっ
て析出された砥粒粒径の２５％厚みのニッケルメッキ層
３によって固着され、一層目の砥粒層４を形成してい
る。この一層目の砥粒層４の上部に、二層目のダイヤモ
ンド砥粒５が、一層目のダイヤモンド砥粒２の間隙を埋
めるように配置され、砥粒粒径の３０％厚みのニッケル
メッキ層６によって二層目の砥粒層７を形成している。In the figure, 1 is a conductive base metal, and diamond abrasive grains 2 are formed on the surface of the base metal 1 by a nickel plating layer 3 having a thickness of 25% of the abrasive grain size deposited by the electrodeposition method. It is fixed and the first-layer abrasive grain layer 4 is formed. A second layer of diamond abrasive grains 5 is arranged above the first layer of abrasive grains layer 4 so as to fill the gap between the first layer of diamond grains 2 and has a thickness of 30% of the grain size of the nickel plating layer. 6 forms the second abrasive grain layer 7.
【００１４】本実施例では、砥粒２，５として平均粒径
２００μｍのダイヤモンド砥粒を用い、メッキ液を入れ
た電着装置内に母材である台金１及び砥粒を入れ、０．
５Ａ／ｄｍ2 の電流を３ｈｒ流して２０μｍのメッキに
よって一層目の砥粒２を仮固定した。その後、余分な砥
粒を除去し、再度、３．０Ａ／ｄｍ2 の電流を０．５ｈ
ｒ流して合計５０μｍ（砥粒粒径の２５％）のニッケル
メッキ３層を析出し、一層目の砥粒層４を形成した。In this embodiment, diamond abrasive grains having an average particle diameter of 200 μm are used as the abrasive grains 2 and 5, and the base metal 1 as the base material and the abrasive grains are placed in an electrodeposition apparatus containing a plating solution.
An electric current of 5 A / dm 2 was passed for 3 hours, and the first-layer abrasive grain 2 was temporarily fixed by 20 μm plating. After that, remove excess abrasive grains and again apply a current of 3.0 A / dm 2 for 0.5 h.
A total of 50 μm (25% of the abrasive grain diameter) of nickel-plated three layers were deposited by flowing r to form the first abrasive grain layer 4.
【００１５】そして、この一層目の砥粒層４の上に再度
砥粒５を散布し、０．５Ａ／ｄｍ2 の電流を１ｈｒ流し
て２０μｍのメッキ層を析出して二層目の砥粒５を仮固
定した。そして、余分な砥粒を除去し、再度、３．０Ａ
／ｄｍ2 の電流を０．５ｈｒ流して合計６０μｍ（砥粒
粒径の３０％）のメッキ６層を析出して二層目の砥粒層
７を形成した。Then, the abrasive grains 5 are again sprayed on the first-layer abrasive grain layer 4 and a current of 0.5 A / dm 2 is applied for 1 hr to deposit a plating layer of 20 μm to form the second-layer abrasive grains. 5 was temporarily fixed. Then, remove excess abrasive grains, and again 3.0A
An electric current of / dm 2 was applied for 0.5 hr to deposit a total of 60 μm (30% of the abrasive grain size) of 6 plating layers to form a second abrasive grain layer 7.
【００１６】この砥粒層構造を有する電着工具の耐久性
を確認するために、下記の条件で試験を行った。In order to confirm the durability of the electrodeposition tool having this abrasive grain layer structure, a test was conducted under the following conditions.
【００１７】実施例品として、上記構成の二層の砥粒層
構造を有するホイールを用い、比較例として従来の単層
構造のホイールを用いた。ホイール寸法は両者とも同様
の２００Ｄ×１５Ｔ×７６．２Ｈ（ここで、Ｄは外径、
Ｔは厚み、Ｈは孔径をｍｍで表示したものであるであ
る。）のものとした。A wheel having a two-layered abrasive grain structure having the above-described structure was used as an example product, and a conventional single-layer structure wheel was used as a comparative example. Both wheels have the same 200D x 15T x 76.2H (where D is the outer diameter,
T is the thickness, and H is the hole diameter in mm. ).
【００１８】上記ホイールによって、 ・機 械 ： 日立平研削盤 ＧＨＬ−Ｂ３０６−
４（３．７ＫＷ） ・砥石周速度 ： １６００ｍ／ｍｉｎ ・テーブル速度： １０ｍ／ｍｉｎ ・切り込み ： ２０μｍ／ｐａｓｓ ・研削方式 ： プランジダウンカット ・研削液 ： ソリュブルタイプ ５０倍希釈液
（例 ノリタケクール Ｎ−５０ＴＣ） の試験条件によって、超硬Ｋ２０の加工を行った。By means of the above wheels: Machine: Hitachi flat grinder GHL-B306-
4 (3.7 kW) ・ Whetstone peripheral speed: 1600 m / min ・ Table speed: 10 m / min ・ Incision: 20 μm / pass ・ Grinding method: Plunge down cut ・ Grinding fluid: Soluble type 50 times dilution fluid
The carbide K20 was processed under the test conditions of (Example Noritake Cool N-50TC).
【００１９】図２は、この試験結果を示すグラフであ
り、横軸は通算の研削量を、縦軸は消費電力（Ｗ）、ホ
イール半径の摩耗量（μｍ）及び面粗度（Ｒｍａｘ：μ
ｍ）をそれぞれ示す。FIG. 2 is a graph showing the results of this test, in which the horizontal axis represents the total grinding amount, the vertical axis represents power consumption (W), wheel radius wear amount (μm) and surface roughness (Rmax: μ).
m) are shown respectively.
【００２０】同図において、研削量５ｃｍ3 程度の研削
初期においては、実施例品は切れ味には優れるもののホ
イール摩耗量は大きくなっている。初期摩耗後、比較例
品は、消費電力は安定した上昇を示し、ホイール摩耗.
面粗さ共に定常状態となる。実施例品は、消費電力は比
較的低く推移し、研削量１０ｃｍ3 付近までは、磨耗は
緩やかにな上昇し、面粗さは下降している。これは、二
層目の砥粒が目変わりしているためと推察される。In the figure, in the initial stage of grinding when the grinding amount is about 5 cm 3 , the example product is excellent in sharpness, but the wheel wear amount is large. After the initial wear, the comparative product showed a steady increase in power consumption and wheel wear .
Both surface roughness is in a steady state. The power consumption of the product of Example is relatively low, the wear is gradually increased and the surface roughness is decreased up to the grinding amount of about 10 cm 3 . It is presumed that this is because the abrasive grains in the second layer changed.
【００２１】ここで、消費電力が５００ｗを超えた段階
で電着工具の寿命とすると、比較例品では１７ｃｍ
3 で、実施例品は２７ｃｍ3 でそれぞれ寿命となり、約
６０％の寿命アップが確認された。Assuming that the life of the electrodeposition tool is the stage when the power consumption exceeds 500 w, the comparative example product has a length of 17 cm.
In Example 3 , the product of the example had a life of 27 cm 3 , and it was confirmed that the life was increased by about 60%.
【００２２】また、同様にガラス縁取り加工用ホイー
ル、超硬金型内研用軸付ホイール及び電子部品セラミッ
クス加工用ラップ盤に二層構造の電着加工を施したとこ
ろ、チッピング等が減少して研削精度が向上し、また２
０〜１００％の寿命アップが確認された。Similarly, when a glass edging wheel, a cemented carbide in-mold grinding wheel with a shaft, and a lapping machine for processing ceramics of electronic parts were subjected to a two-layer electrodeposition process, chipping and the like were reduced. Grinding accuracy is improved, and 2
It was confirmed that the life was extended by 0 to 100%.
【００２３】なお、本実施例では砥粒として、ダイヤモ
ンド砥粒を使用したが、無論これに限定されるものでは
なく、立方晶窒化ほう素（ｃＢＮ）砥粒等の超砥粒も使
用することができる。Although diamond abrasive grains are used as the abrasive grains in this embodiment, the abrasive grains are not limited to this, and super abrasive grains such as cubic boron nitride (cBN) abrasive grains may also be used. You can
【００２４】[0024]
【発明の効果】以上に説明したように、本発明は、電着
法により形成された砥粒層を多層構造としている。この
ため、上層の砥粒層が使用により摩耗すると、下層の砥
粒層が出現し、従来の単層の砥粒層構造と比較し、砥粒
の使用領域が増加して製品寿命が大幅に向上する。ま
た、二層目の砥粒は一層目の砥粒層の隙間に配置される
ため切刃間隔が広く切れ味が良いため、切削能率が大幅
に向上する。As described above, according to the present invention, the abrasive grain layer formed by the electrodeposition method has a multi-layer structure. Therefore, when the upper abrasive grain layer is worn out by use, the lower abrasive grain layer appears, and compared with the conventional single-layer abrasive grain layer structure, the use area of the abrasive grains is increased and the product life is significantly increased. improves. Further, since the second layer of abrasive grains is arranged in the gap between the first layer of abrasive grains, the cutting edge spacing is wide and the sharpness is good, so that the cutting efficiency is significantly improved.
【００２５】また、この電着工具は、台金表面にランダ
ムに散布した砥粒をメッキにより固定して一層目の砥粒
層を形成した後、一層目の砥粒層の表面に再度砥粒を散
布しメッキ層を析出させて二層目の砥粒層を形成するこ
とによって容易に製造される。Further, in this electrodeposition tool, the abrasive grains randomly dispersed on the surface of the base metal are fixed by plating to form the first abrasive grain layer, and then the abrasive grains are again formed on the surface of the first abrasive grain layer. And the plating layer is deposited to form a second abrasive grain layer.
【図１】本実施例の電着工具の砥粒層構造を示す断面図
である。FIG. 1 is a cross-sectional view showing an abrasive grain layer structure of an electrodeposition tool of this example.
【図２】研削量と、消費電力、ホイール半径の摩耗量及
び面粗度の関係を示すグラフである。FIG. 2 is a graph showing the relationship between the grinding amount, the power consumption, the wear amount of the wheel radius, and the surface roughness.
【図３】本発明の電着工具の砥粒の挙動を説明する図で
あるFIG. 3 is a diagram illustrating the behavior of abrasive grains of the electrodeposition tool of the present invention.
１ 台金 ２，５ ダイヤモンド砥粒 ３，６ ニッケルメッキ層 ４ 一層目の砥粒層 ７ 二層目の砥粒層 1 base metal 2,5 Diamond abrasive grains 3,6 Nickel plating layer 4 First layer abrasive grain layer 7 Second layer abrasive grain layer
Claims (2)
電着工具であって、前記砥粒層を２層以上の多層構造と
したことを特徴とする電着工具。1. An electrodeposition tool in which an abrasive grain layer is fixed to a base metal by an electrodeposition method, wherein the abrasive grain layer has a multilayer structure of two or more layers.
台金とを固着する電着工具の製造方法であって、台金表
面にランダムに散布した砥粒を電着によるメッキ層によ
り固定して一層目の砥粒層を形成した後、一層目の砥粒
層の表面に再度砥粒を散布し電着によるメッキ層を析出
させて二層目の砥粒層を形成することを特徴とする電着
工具の製造方法。2. A method of manufacturing an electrodeposition tool, wherein abrasive grains are fixed to each other by an electrodeposition method, and the abrasive grains and a base metal are fixed to each other, wherein the abrasive grains randomly dispersed on the surface of the base metal are formed by a plating layer by electrodeposition. After fixing and forming the first abrasive grain layer, it is possible to form the second abrasive grain layer by spraying the abrasive grains again on the surface of the first abrasive grain layer and depositing the plating layer by electrodeposition. A method for manufacturing a characteristic electrodeposition tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03278037A JP3128079B2 (en) | 1991-10-24 | 1991-10-24 | Electroplated tool and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03278037A JP3128079B2 (en) | 1991-10-24 | 1991-10-24 | Electroplated tool and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05111875A true JPH05111875A (en) | 1993-05-07 |
| JP3128079B2 JP3128079B2 (en) | 2001-01-29 |
Family
ID=17591770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03278037A Expired - Lifetime JP3128079B2 (en) | 1991-10-24 | 1991-10-24 | Electroplated tool and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3128079B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101352020B1 (en) * | 2011-08-19 | 2014-01-16 | 이화다이아몬드공업 주식회사 | Manufacturing method for diamond tool |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0727485U (en) * | 1993-06-03 | 1995-05-23 | 武盛 豊永 | Spherical washing machine |
-
1991
- 1991-10-24 JP JP03278037A patent/JP3128079B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101352020B1 (en) * | 2011-08-19 | 2014-01-16 | 이화다이아몬드공업 주식회사 | Manufacturing method for diamond tool |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3128079B2 (en) | 2001-01-29 |
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