JPH10180636A - Super-abrasive grinding wheel - Google Patents
Super-abrasive grinding wheelInfo
- Publication number
- JPH10180636A JPH10180636A JP34703796A JP34703796A JPH10180636A JP H10180636 A JPH10180636 A JP H10180636A JP 34703796 A JP34703796 A JP 34703796A JP 34703796 A JP34703796 A JP 34703796A JP H10180636 A JPH10180636 A JP H10180636A
- Authority
- JP
- Japan
- Prior art keywords
- super
- metal bond
- filler
- superabrasive
- grinding wheel
- 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
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- Polishing Bodies And Polishing Tools (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、超硬金属やセラミ
ックスなどの研削に使用される超砥粒砥石に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a superabrasive grindstone used for grinding a hard metal or a ceramic.
【０００２】[0002]
【従来の技術】結合剤中にダイヤモンド砥粒やＣＢＮ砥
粒を分散固定した超砥粒砥石は、結合剤の種類によっ
て、合成樹脂材料を主原料としたレジノイドボンド砥
石、金属粉末を主原料としたメタルボンド砥石、陶磁器
材料を主原料としたビトリファイドボンド砥石、及び、
ニッケル等のメッキ法による電着砥石に区分されてい
る。2. Description of the Related Art A super-abrasive grindstone in which diamond abrasive grains and CBN abrasive grains are dispersed and fixed in a binder is a resin-bonded grindstone made of a synthetic resin material as a main raw material and a metal powder as a main raw material, depending on the kind of the binder. Metal bond whetstone, vitrified bond whetstone made mainly of ceramic material, and
It is divided into electrodeposited whetstones by a plating method such as nickel.
【０００３】この中でレジノイドボンド砥石は、研削時
の当たりが柔らかく、切れ味に優れる反面、超砥粒を保
持している結合剤が樹脂であるため、使用による磨耗が
激しく砥石寿命が短い。また、結合剤の弾性率が低いた
め、被削材の加工精度に悪影響を与える等の欠点があ
る。[0003] Among them, the resinoid bond grinding wheel has a soft contact at the time of grinding and is excellent in sharpness, but since the binder holding the superabrasive grains is a resin, the wear due to its use is severe and the grinding wheel life is short. In addition, since the elastic modulus of the binder is low, there is a disadvantage that the processing accuracy of the work material is adversely affected.
【０００４】一方、レジノイドボンド砥石と共に多く使
用されているメタルボンド砥石は、結合剤が高硬度であ
るため、レジノイドボンド砥石に比べて耐久性や加工精
度には優れるものの、特にセラミックス、サーメットな
どの難削材加工には切れ味が悪く、また、被削材焼けや
研削加工時間の延長が発生し頻繁に砥石の目立てが必要
である。[0004] On the other hand, metal bond grindstones, which are often used together with resinoid bond grindstones, have higher durability and processing accuracy than resinoid bond grindstones due to the high hardness of the binder, but are particularly suitable for ceramics, cermets and the like. Difficult-to-cut materials have poor sharpness, and burnt workpieces and prolong the grinding time require frequent dressing of the grindstone.
【０００５】このような結合剤の特性を改善するため
に、従来よりメタルやレジンなどからなる結合剤中に、
フィラ（filler）と呼ばれる充填材を添加することが行
われている。[0005] In order to improve the properties of such a binder, a binder made of a metal, a resin, or the like has heretofore been used.
Addition of fillers called fillers has been performed.
【０００６】例えば固体潤滑材として、二硫化モリブデ
ン、酸化クロム、黒鉛などが、気孔形成材として、リン
酸ソーダ、食塩、塩化カルシウムなどがそれぞれ使用さ
れ、また、レジノイドボンドに添加される耐磨耗材とし
て、炭化ホウ素、炭化タングステン、炭化珪素、酸化ア
ルミニウム、各種金属などが、メタルボンドに添加され
る脆化材として酸化ジルコニウム、酸化セリウムなどが
ある。For example, molybdenum disulfide, chromium oxide, graphite and the like are used as solid lubricants, sodium phosphate, sodium chloride, calcium chloride and the like are used as pore-forming materials, respectively. For example, boron carbide, tungsten carbide, silicon carbide, aluminum oxide, various metals, and the like, zirconium oxide, cerium oxide, and the like as embrittlement agents added to metal bonds.
【０００７】[0007]
【発明が解決しようとする課題】コバルト、スチール、
タングステン、ニッケル、ブロンズなど硬質のメタルボ
ンド内に潤滑材として炭素や二硫化モリブデンを添加し
た場合、メタルボンドの強度を適度に低下させて、被削
材焼け等上記したメタルボンド砥石の欠点をある程度は
解消することができる。その反面、メタルボンド内に焼
成温度でも反応しない充填材が存在することから、充填
材に接している超砥粒の保持力が著しく低下し、使用時
に超砥粒が脱落し易いという問題がある。SUMMARY OF THE INVENTION Cobalt, steel,
When carbon or molybdenum disulfide is added as a lubricant to a hard metal bond such as tungsten, nickel, bronze, etc. Can be eliminated. On the other hand, since there is a filler that does not react even at the firing temperature in the metal bond, there is a problem that the holding power of the superabrasive grains in contact with the filler is significantly reduced, and the superabrasive grains easily fall off during use. .
【０００８】また、炭素や二硫化モリブデンなどはメタ
ルボンドの焼成温度でも反応しないため、充填材の粒径
が大きい場合（５０〜３００μｍ程度）や充填材の添加
量が多い場合（２５体積％以上）は、製造プロセスにお
いて、充填材近傍のメタルボンド成分の流動を妨げてメ
タルボンドの均一な焼成を阻害する。逆に充填材の粒径
が小さい場合（５０μｍ程度）は、メタルボンド成分で
ある金属粉末粒子の回りに充填材が付着し、メタルボン
ドの焼成を阻害する。これが、メタルボンド砥石の緻密
度（焼成体測定密度を焼成体成分の密度で割算した値）
を低下させる原因ともなっている。Further, since carbon and molybdenum disulfide do not react even at the sintering temperature of the metal bond, when the particle size of the filler is large (about 50 to 300 μm) or when the amount of the filler is large (25 vol% or more) In the manufacturing process, the flow of the metal bond component near the filler is hindered to hinder uniform firing of the metal bond. Conversely, when the particle size of the filler is small (approximately 50 μm), the filler adheres around the metal powder particles that are the metal bond components and hinders the firing of the metal bond. This is the density of the metal bond whetstone (value obtained by dividing the measured density of the fired body by the density of the fired body components)
It is also the cause of lowering
【０００９】本発明は、上記従来の問題点を解決するも
ので、結合剤としてメタル成分を用いたメタルボンドに
おいて、超砥粒の保持力を保持しつつ、かつ切れ味を向
上させる有効な手段を提供することを目的とする。The present invention solves the above-mentioned conventional problems. In a metal bond using a metal component as a binder, there is provided an effective means for maintaining sharpness of superabrasive grains and improving sharpness. The purpose is to provide.
【００１０】[0010]
【課題を解決するための手段】本発明は上記課題を解決
するために、メタル成分からなる結合剤と超砥粒とを焼
成成形してなる超砥粒砥石において、前記結合剤内に前
記焼成条件で成形可能な合成樹脂からなる充填材を分散
させてなることを特徴とする。According to the present invention, there is provided a superabrasive grindstone formed by firing and forming a binder composed of a metal component and superabrasive grains. It is characterized by dispersing a filler made of a synthetic resin that can be molded under conditions.
【００１１】ここで成形可能なとは、合成樹脂が所定の
温度（メタルボンドの焼成温度）にて硬化反応が終了し
た状態であって、かつ炭化や燃焼して合成樹脂としての
性質を失うことのない充填材の状態を言う。Here, "formable" means that the synthetic resin has completed a curing reaction at a predetermined temperature (metal bond firing temperature) and loses its properties as a synthetic resin due to carbonization or combustion. No filler state.
【００１２】このような砥石構造によって、従来のよう
に充填材の界面にのみ存在した超砥粒が、あるものは成
形された充填材表面に、また他のものは充填材内部に、
さらに他のものは充填剤に関与されずメタルボンドに保
持されるようになり、このような保持状態の異なる超砥
粒が超砥粒砥石内に混在することとなる。With such a grindstone structure, the superabrasive grains which existed only at the interface of the filler as in the prior art, some on the surface of the formed filler and others on the inside of the filler,
Still others are held by the metal bond without being involved in the filler, and such superabrasive grains having different holding states are mixed in the superabrasive grindstone.
【００１３】図６は、このような構造を有する超砥粒砥
石の研削加工による状態の変化を示す説明図で、充填材
内部や充填材表面に保持された超砥粒は、比較的早期の
段階に脱落して目変わりをし、良好な切れ味を持続する
ことができる。一方、充填剤に関与されずメタルボンド
に強固に保持された超砥粒によって、過度のボンド後退
を阻止し、安定した砥粒の保持状態を保つことができ
る。FIG. 6 is an explanatory view showing a change in state due to grinding of a superabrasive grindstone having such a structure. The superabrasive grains held inside the filler or on the surface of the filler are relatively early. It falls off at a stage and changes its eyes, so that good sharpness can be maintained. On the other hand, the super-abrasive grains firmly held by the metal bond without being involved in the filler can prevent excessive bond receding and maintain a stable holding state of the abrasive grains.
【００１４】また、製造プロセスにおいては、結合剤の
焼成条件で成形可能な合成樹脂からなる充填材が材料中
に存在することにより、充填材の反応によって充填材近
傍のメタルボンド成分も流動しやすくなり、これによっ
て、メタルボンドの均一な焼成を促進させ、緻密度を高
めることができる。Further, in the manufacturing process, since a filler made of a synthetic resin that can be formed under the firing conditions of the binder is present in the material, the metal bond component near the filler easily flows due to the reaction of the filler. Accordingly, uniform firing of the metal bond can be promoted, and denseness can be increased.
【００１５】このような条件を満たすメタルボンド結合
材としては、例えば、Ｃｕ、Ｓｎを使用することがで
き、比較的低温の３００〜５００℃での焼成が可能な、
Ｃｕ（６０重量％）・Ｓｎ（４０重量％）を主成分とす
るものを好適に用いることができる。また充填材として
は、耐熱性樹脂として知られている、成形温度３００〜
５００℃の直鎖型ポリイミド樹脂を用いることができ
る。As the metal bond bonding material satisfying such conditions, for example, Cu and Sn can be used, and firing at a relatively low temperature of 300 to 500 ° C. is possible.
A material containing Cu (60% by weight) and Sn (40% by weight) as main components can be suitably used. In addition, as a filler, a molding temperature of 300 to
A linear polyimide resin at 500 ° C. can be used.
【００１６】この直鎖型ポリイミド樹脂は、他のフェノ
ール樹脂やエポキシ樹脂に比べ、特に耐熱性に優れた性
質を有し、比較的高温においても炭化したり燃焼するこ
とが少なく、本発明において好適に使用することができ
る。This linear type polyimide resin has particularly excellent heat resistance as compared with other phenol resins and epoxy resins, and is less likely to carbonize or burn even at a relatively high temperature, and is suitable for the present invention. Can be used for
【００１７】これら結合剤、超砥粒、充填材の配合率
は、メタルボンド結合材９７．５〜５０体積％、超砥粒
２．５〜３７．５体積％、充填材２．５〜５０体積％が
望ましい。メタルボンド結合材の配合率が９７．５体積
％を越えると物性的に従来のメタルボンド砥石と大差な
く、５０体積％未満であると物性的に従来のレジノイド
ボンド砥石と大差なくなり好ましくない。超砥粒の配合
率が３７．５体積％を越えるとボンド材の焼成を妨げや
すくなり、２．５体積％未満であると研削加工には不適
となり好ましくない。また、充填材の配合率が５０体積
％を越えると物性的に従来のレジノイドボンド砥石と大
差なくなり、２．５体積％未満であると物性的に従来の
メタルボンド砥石と大差なくなり好ましくない。The compounding ratio of these binder, superabrasives and filler is 97.5 to 50% by volume of metal bond binder, 2.5 to 37.5% by volume of superabrasives and 2.5 to 50% by filler. % By volume is desirable. If the compounding ratio of the metal bond binder exceeds 97.5% by volume, the physical properties are not so different from those of the conventional metal bond grindstone, and if it is less than 50% by volume, the physical properties are not so different from those of the conventional resinoid bond wheels, which is not preferable. If the blending ratio of the superabrasives exceeds 37.5% by volume, the firing of the bonding material is easily hindered. If the blending ratio is less than 2.5% by volume, it is unsuitable for grinding. Further, if the compounding ratio of the filler exceeds 50% by volume, there is little difference in physical properties from the conventional resinoid bond whetstone, and if it is less than 2.5% by volume, there is no great difference in physical properties from the conventional metal bond whetstone.
【００１８】このような超砥粒砥石は、従来のメタルボ
ンドの製造方法と同様、原料となるダイヤモンド砥粒あ
るいはＣＢＮ砥粒と金属粉末とを、撹拌機によって一定
割合に混合し、この粉末を金型内に充填し、これを電気
炉内で３００〜５００℃で加熱するとともに、１００〜
５００ｋｇ／ｃｍ2 の圧力を加えることにより製造する
ことができる。In such a superabrasive grindstone, as in the conventional metal bond manufacturing method, diamond abrasive grains or CBN abrasive grains as raw materials and a metal powder are mixed at a predetermined ratio by a stirrer, and this powder is mixed. It is filled in a mold and heated at 300 to 500 ° C. in an electric furnace.
It can be manufactured by applying a pressure of 500 kg / cm 2 .
【００１９】[0019]
【発明の実施の形態】以下本発明を図面に示す実施の形
態に基づいて詳細に説明する。図１（ａ）は本発明の超
砥粒砥石の組織拡大図、図１（ｂ）は同じく従来のメタ
ルボンド砥石の組織拡大図で、同図において、１０はＣ
ｕ（６０重量％）・Ｓｎ（４０重量％）のメタルボンド
結合材、１１は超砥粒、１２は直鎖型ポリイミド樹脂か
らなる充填材、１３は従来の炭素からなる充填材をそれ
ぞれ示す。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail based on an embodiment shown in the drawings. FIG. 1A is an enlarged view of the structure of the superabrasive grinding wheel of the present invention, and FIG. 1B is an enlarged view of the structure of a conventional metal-bonded grinding wheel. In FIG.
A metal bond binder of u (60% by weight) · Sn (40% by weight), 11 is a superabrasive, 12 is a filler made of a linear polyimide resin, and 13 is a conventional filler made of carbon.
【００２０】本発明品は、原料としてＣｕ粉、Ｓｎ粉、
樹脂粉、合成ダイヤ（Ｍ１０／２０μｍ）を用い、これ
を撹拌した後、金型に充填し、５００℃、５００Ｋｇ／
ｃｍ2 の条件下にて焼成し製造した。The product of the present invention comprises Cu powder, Sn powder,
Using a resin powder and synthetic diamond (M10 / 20 μm), this was stirred, and then filled in a mold, and 500 ° C., 500 kg /
It was manufactured by firing under the condition of cm 2 .
【００２１】一方従来品は、原料としてＣｕ粉、Ｓｎ
粉、炭素粉、合成ダイヤ（Ｍ１０／２０μｍ）を用い、
これを撹拌した後、金型に充填し、５００℃、５００Ｋ
ｇ／ｃｍ2 の条件下にて焼成し製造した。On the other hand, in the conventional product, Cu powder, Sn
Using powder, carbon powder, synthetic diamond (M10 / 20μm)
After stirring this, it is filled in a mold,
It was manufactured by firing under the condition of g / cm 2 .
【００２２】同図に示すように、本発明品においては、
焼成温度で反応した充填材１２内に超砥粒１１が分散し
ているのに対し、従来品では、焼成温度で反応しない炭
素粉１３とメタルボンド結合材１０の界面にのみ超砥粒
１１が集中しているのが確認された。As shown in the figure, in the product of the present invention,
While superabrasive grains 11 are dispersed in filler 12 reacted at the firing temperature, in the conventional product, superabrasive grains 11 are only present at the interface between carbon powder 13 and metal bond binder 10 that do not react at the firing temperature. It was confirmed that he was concentrated.
【００２３】図２は図１（ａ）に示す超砥粒砥石の製造
工程を示す説明図で、塗りつぶしやハッチングなどで示
す円状のものは、それぞれ、砥粒、Ｃｕ、Ｓｎ、樹脂の
粒子を示している。FIG. 2 is an explanatory view showing a manufacturing process of the superabrasive grain grindstone shown in FIG. 1 (a). Circles shown by painting or hatching are abrasive grains, Cu, Sn, and resin particles, respectively. Is shown.
【００２４】図２（ａ）は、超砥粒、Ｃｕ粉、Ｓｎ粉、
樹脂粉を撹拌した状態を示し、その配合割合に応じて充
分に分散している。これに５００Ｋｇ／ｃｍ2 の圧力を
かけ温度を上げていくと、図２（ｂ）に示すように、約
２３０℃で一番溶けやすいＳｎが溶け始めＣｕと反応を
始める。その際、全体に圧力がかけられているため、超
砥粒、Ｃｕ粉、樹脂粉などの他の粒体が移動して、Ｓｎ
が溶けた隙間が埋められる。このような移動によって、
メタルボンドの焼成が進み、また樹脂同士が反応しやす
くなる。FIG. 2A shows superabrasive grains, Cu powder, Sn powder,
It shows a state in which the resin powder is stirred, and is sufficiently dispersed in accordance with the mixing ratio. When a pressure of 500 kg / cm 2 is applied to this and the temperature is increased, Sn which is most soluble at about 230 ° C. starts to melt at about 230 ° C. and starts reacting with Cu. At that time, since pressure is applied to the whole, other grains such as superabrasive grains, Cu powder, resin powder move, and Sn
The melted gap is filled. By such movement,
The sintering of the metal bond proceeds, and the resins easily react with each other.
【００２５】さらに温度が５００℃に近づくと、図２
（ｃ）に示すように、ＣｕとＳｎが合金化をはじめ、ま
た樹脂同士の反応によって原料粉の移動が起こり、これ
によって同時にメタルボンドの反応も進む。これの繰り
返しによって、図１（ａ）に示したような、メタルボン
ド内に合成樹脂からなる充填材が分散した状態の超砥粒
砥石を得ることができる。When the temperature further approaches 500 ° C., FIG.
As shown in (c), Cu and Sn begin to be alloyed, and the reaction between the resins causes the movement of the raw material powder, whereby the metal bond reaction also proceeds at the same time. By repeating this, it is possible to obtain a superabrasive grindstone in a state in which a filler made of a synthetic resin is dispersed in a metal bond as shown in FIG.
【００２６】[0026]
【実施例】図３はＣｕ（６０重量％）・Ｓｎ（４０重量
％）からなるメタルボンド中に炭素粉末を４０体積％添
加した従来品と、同メタルボンド中に直鎖型ポリイミド
樹脂を４０体積％添加し、５００℃、５００Ｋｇ／ｃｍ
2 の条件下で焼成し製造した、本発明品の直鎖型ポリイ
ミド樹脂粉末を含有させたボンド焼成体の緻密度を示す
グラフである。同図に示すように、本発明品において
は、充填材含有量を増やした場合にも、緻密度の安定性
が確認された。FIG. 3 shows a conventional product in which 40% by volume of carbon powder is added to a metal bond composed of Cu (60% by weight) and Sn (40% by weight), and a linear polyimide resin of 40% in the metal bond. Volume%, 500 ° C, 500Kg / cm
3 is a graph showing the compactness of a bonded fired body containing the linear polyimide resin powder of the present invention, which was manufactured by firing under the conditions of 2 . As shown in the figure, in the product of the present invention, the stability of the compactness was confirmed even when the content of the filler was increased.
【００２７】図４は、砥粒保持力を比較するために、Ｃ
ｕ・Ｓｎからなるメタルボンド中に炭素粉を２０体積％
添加し、＃１７０の合成ダイヤモンド砥粒を２５体積％
含有した従来品と、同体積％の直鎖型ポリイミド樹脂粉
を添加し、＃１７０の合成ダイヤモンド砥粒を２５体積
％含有した本発明品の焼結体を、一般砥石で研磨し、１
０ｍｍ四方中に存在する砥粒数を数え、従来品の砥粒数
を１００として比較した、砥粒数調査結果を示す。FIG. 4 shows C for comparison of the abrasive grain holding power.
20 volume% of carbon powder in metal bond made of u ・ Sn
25% by volume of # 170 synthetic diamond abrasive
The same volume percentage of the conventional product and the same type of linear polyimide resin powder were added, and the sintered body of the product of the invention containing 25 volume% of # 170 synthetic diamond abrasive was polished with a general grindstone.
The number of abrasive grains present in a square of 0 mm is counted, and the number of abrasive grains is compared with the number of abrasive grains of a conventional product as 100. FIG.
【００２８】同図に示すように、本発明品においては砥
粒の脱落が少なく、砥粒保持力の向上が確認された。As shown in the drawing, in the product of the present invention, the abrasive particles were less likely to fall off, and it was confirmed that the abrasive particle holding power was improved.
【００２９】図５は、Ｃｕ（６０重量％）・Ｓｎ（４０
重量％）からなるメタルボンド中に、直鎖型ポリイミド
樹脂粉２０体積％、＃１７０の合成ダイヤモンド砥粒を
２５体積％添加した本発明品、及び、Ｃｕ（６０重量
％）・Ｓｎ（４０重量％）からなるメタルボンド中に、
＃１７０の合成ダイヤモンド砥粒を２５体積％添加した
従来のメタルボンド砥石Ａ、Ｃｕ（６０重量％）・Ｓｎ
（４０重量％）からなるメタルボンド中に、炭素粉４０
体積％、＃１７０の合成ダイヤモンド砥粒を２５体積％
添加した従来のメタルボンド砥石Ｂを用いた研削性能の
試験結果で、消費電力を示す。FIG. 5 shows that Cu (60% by weight) .Sn (40
% By weight), a metal bond consisting of 20% by volume of linear polyimide resin powder and 25% by volume of synthetic diamond abrasive grains of # 170 added to the metal bond, and Cu (60% by weight) · Sn (40% by weight) %) In the metal bond
Conventional metal-bonded grinding wheel A, Cu (60% by weight) · Sn added with 25% by volume of # 170 synthetic diamond abrasive grains
(40% by weight), carbon powder 40
25% by volume of # 170 synthetic diamond abrasive grains
The power consumption is shown in the test results of the grinding performance using the added conventional metal bond grindstone B.
【００３０】砥石寸法は１５０Ｄ×６Ｔ×３Ｘとし、被
削材としてアルミナ（１８００Ｈｖ）を用い、砥石周
速；１６００ｍ／ｍｉｎ，テーブル速度；１０ｍ／ｍｉ
ｎ，クロスフィード；２ｍｍ／ｐａｓｓ，切り込み０．
０３ｍｍ，総切り込み；１２ｍｍ，スパークアウト；２
ｐａｓｓで行った。The dimensions of the grindstone are 150D × 6T × 3X, alumina (1800 Hv) is used as the work material, the grindstone peripheral speed is 1600 m / min, the table speed is 10 m / mi.
n, cross feed; 2 mm / pass, cut 0.
03mm, total cut; 12mm, spark out; 2
Pass was performed.
【００３１】図５に示す通り、従来のメタルボンドＡ
は、研削抵抗値が高くなって試験を中断し、従来のメタ
ルボンドＢは、研削抵抗値は低いが砥石の異常磨耗が発
生して試験を中断した。一方、ボンド材内にボンド材の
焼成温度で成形可能な合成樹脂からなる充填材を分散さ
せた本発明品は、メタルボンドの超砥粒保持力を保持し
つつ、かつ切れ味を向上させることができた。As shown in FIG. 5, a conventional metal bond A
The test was interrupted due to a high grinding resistance value, and the test was interrupted with the conventional metal bond B, although the grinding resistance value was low but abnormal wear of the grinding wheel occurred. On the other hand, the present invention product in which a filler made of a synthetic resin that can be molded at the firing temperature of the bond material is dispersed in the bond material, while maintaining the super-abrasive holding power of the metal bond, and improving the sharpness. did it.
【００３２】[0032]
【発明の効果】本発明によって以下の効果を奏すること
ができる。According to the present invention, the following effects can be obtained.
【００３３】（１）結合剤内に結合剤の焼成温度で成形
可能な合成樹脂からなる充填材を分散させることによっ
て、超砥粒の保持力を保持しつつ、かつ切れ味を向上さ
せることができる。(1) By dispersing a filler made of a synthetic resin which can be molded at the binder sintering temperature in the binder, the sharpness can be improved while maintaining the holding power of the superabrasive grains. .
【００３４】（２）特に市販品として、焼成温度３００
〜５００℃のＣｕ・Ｓｎを主成分とするメタル成分、及
び、成形温度３００〜５００℃のポリイミド樹脂を好適
に用いることができる。(2) Particularly, as a commercially available product, a sintering temperature of 300
A metal component containing Cu and Sn as a main component at a temperature of up to 500 ° C. and a polyimide resin at a molding temperature of 300 to 500 ° C. can be suitably used.
【００３５】（３）充填材内に超砥粒を分散させること
により、適度の砥粒保持力を持たせ、切れ味に影響を与
える目変わりを効率よく行わせることができる。(3) By dispersing the super-abrasive grains in the filler, it is possible to have an appropriate abrasive-grasping force and efficiently perform a change that affects the sharpness.
【図１】（ａ）は本発明の超砥粒砥石の組織拡大図、
（ｂ）は従来のメタルボンド砥石の組織拡大図である。FIG. 1A is an enlarged view of the structure of a superabrasive grindstone of the present invention,
(B) is an enlarged view of the structure of a conventional metal bond grindstone.
【図２】図１（ａ）に示す超砥粒砥石の製造工程を示す
説明図である。FIG. 2 is an explanatory view showing a manufacturing process of the superabrasive grinding wheel shown in FIG. 1 (a).
【図３】ボンド焼成体の緻密度比較を示すグラフであ
る。FIG. 3 is a graph showing a comparison of denseness of a fired bond body.
【図４】砥粒保持力の比較を示すグラフである。FIG. 4 is a graph showing a comparison of abrasive grain holding power.
【図５】研削性能の比較を示すグラフである。FIG. 5 is a graph showing a comparison of grinding performance.
【図６】研削の状況を示す説明図である。FIG. 6 is an explanatory diagram showing a state of grinding.
１０ メタルボンド材 １１ 超砥粒 １２ 直鎖型ポリイミド樹脂（充填材） １３ 炭素（充填材） DESCRIPTION OF SYMBOLS 10 Metal bond material 11 Super abrasive grain 12 Linear polyimide resin (filler) 13 Carbon (filler)
Claims (3)
焼成成形してなる超砥粒砥石において、前記結合剤内に
前記焼成条件で成形可能な合成樹脂からなる充填材を分
散させてなることを特徴とする超砥粒砥石。1. A superabrasive grindstone formed by firing and forming a binder made of a metal component and superabrasives, wherein a filler made of a synthetic resin that can be formed under the firing conditions is dispersed in the binder. A super-abrasive grinding wheel characterized by becoming.
０℃のＣｕ・Ｓｎを主成分としたものであって、かつ前
記充填材が成形温度３００〜５００℃のポリイミド樹脂
であることを特徴とする請求項１記載の超砥粒砥石。2. The method according to claim 1, wherein the metal component has a firing temperature of 300 to 50.
The superabrasive grinding wheel according to claim 1, wherein the main component is Cu / Sn at 0 ° C, and the filler is a polyimide resin having a molding temperature of 300 to 500 ° C.
砥粒を分散させていることを特徴とする請求項１，２記
載の超砥粒砥石。3. The superabrasive grinding wheel according to claim 1, wherein the superabrasive grains are dispersed in a filler made of the synthetic resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34703796A JPH10180636A (en) | 1996-12-26 | 1996-12-26 | Super-abrasive grinding wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34703796A JPH10180636A (en) | 1996-12-26 | 1996-12-26 | Super-abrasive grinding wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10180636A true JPH10180636A (en) | 1998-07-07 |
Family
ID=18387499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34703796A Pending JPH10180636A (en) | 1996-12-26 | 1996-12-26 | Super-abrasive grinding wheel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10180636A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109676541A (en) * | 2018-12-18 | 2019-04-26 | 郑州磨料磨具磨削研究所有限公司 | A kind of grinding of silicon ingot is with being excused from a college course reduction conjunction binding agent ultra hard grinding wheel and its preparation method and application |
-
1996
- 1996-12-26 JP JP34703796A patent/JPH10180636A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109676541A (en) * | 2018-12-18 | 2019-04-26 | 郑州磨料磨具磨削研究所有限公司 | A kind of grinding of silicon ingot is with being excused from a college course reduction conjunction binding agent ultra hard grinding wheel and its preparation method and application |
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