JP2000042930A - Super-abrasive grinding wheel, and manufacture thereof - Google Patents
Super-abrasive grinding wheel, and manufacture thereofInfo
- Publication number
- JP2000042930A JP2000042930A JP10228657A JP22865798A JP2000042930A JP 2000042930 A JP2000042930 A JP 2000042930A JP 10228657 A JP10228657 A JP 10228657A JP 22865798 A JP22865798 A JP 22865798A JP 2000042930 A JP2000042930 A JP 2000042930A
- Authority
- JP
- Japan
- Prior art keywords
- grinding wheel
- abrasive
- superabrasive
- abrasive grains
- grains
- 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
Landscapes
- Polishing Bodies And Polishing Tools (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はオフセット砥石車又は回
転切断砥石車に関し、更に詳しくは、砥石車の表面の一
部にダイヤモンド砥粒等の超砥粒を配設した砥石車に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an offset grinding wheel or a rotary cutting wheel, and more particularly to a grinding wheel in which super abrasive grains such as diamond abrasive grains are arranged on a part of the surface of a grinding wheel.
【０００２】[0002]
【従来の技術】従来のオフセット砥石や切断砥石等の砥
石車は、炭化珪素、金剛砂等よりなる砥粒を結合剤と共
に円盤状に圧縮成型したのち、熱処理して結合剤を硬化
して一体成形して製造され、全体が一体のものであっ
た。又ダイヤモンド砥粒や立方晶窒化硼素（ＣＢＮ）砥
粒等の超砥粒を用いた砥石車は金属製砥石車の表面にダ
イヤモンド砥粒等を添着したものが用いられている。2. Description of the Related Art Conventional grinding wheels, such as offset grinding wheels and cutting wheels, are formed by compression-molding abrasive grains made of silicon carbide, sand and the like into a disk shape together with a binder, and then heat-treating to harden the binder to form a single piece. It was manufactured as a whole. In addition, a grinding wheel using super-abrasive grains such as diamond abrasive grains or cubic boron nitride (CBN) abrasive grains is obtained by attaching diamond abrasive grains or the like to the surface of a metal grinding wheel.
【０００３】一方、特開昭４９−１３２６８８号には孔
容量（多孔度）が小さく比較的硬質の扇形研削部材と、
孔容量（多孔度）が大きく比較的軟質の扇形研削部材を
交互に配設して砥石車を構成することにより、砥石車の
目詰まりを防止し、研削効率を高めることが提案されて
いる。この多孔度が小さく比較的硬質の扇形研削部材
と、多孔度が大きく比較的軟質の扇形研削部材を交互に
配設した砥石車は、その軟質と硬質の扇形研削部材をそ
れぞれ別個に、砥粒を成型、焼成してセグメントとして
製作した後、これらを交互に配列して互いに接着等によ
り円盤状に組立たものであって、その製造工程が極めて
複雑であり、扇形のセグメント同志の接着強度が弱く、
研削作業中にその砥石車のセグメントの接着部分から欠
けたり割れたりする虞があった。On the other hand, JP-A-49-132688 discloses a relatively hard sector-shaped grinding member having a small pore volume (porosity),
It has been proposed to arrange a grinding wheel by alternately arranging relatively soft sector grinding members having a large pore volume (porosity) to prevent clogging of the grinding wheel and increase grinding efficiency. The grinding wheel in which the relatively small porosity relatively hard sector grinding member and the relatively large porosity relatively soft sector grinding member are arranged alternately separates the soft and hard sector grinding members separately from the abrasive grains. After molding and firing to produce segments, these are alternately arranged and assembled into a disk shape by bonding or the like to each other.The manufacturing process is extremely complicated, and the adhesive strength of the fan-shaped segments is high. Weak
During the grinding operation, there is a possibility that the segments of the grinding wheel may be chipped or broken.
【０００４】又本発明者は、特願平６−２８００６２号
において、砥粒を結合剤等と配合してなる砥粒配合物を
円板状に圧縮成型し、焼成してなる砥石車において、該
砥石車の片面に波型の凹凸を有し、該波型は該砥石車の
中心部から外周部に向って多数の波頭線が略放射状方向
に延び且つ該砥石車の中心と同心の同心円に沿った断面
における砥石車表面の形状が波状をなす波型であって、
該波型の凸部の砥石車内部の砥粒密度が小さく、該波形
の凹部の砥石車内部の砥粒密度が大きいことを特徴とす
るオフセット砥石車を開示した。Further, the present inventor has disclosed in Japanese Patent Application No. 6-280062, a grinding wheel formed by compressing and shaping an abrasive grain composition obtained by blending abrasive grains with a binder or the like into a disk shape, One side of the grinding wheel has corrugated irregularities, and the waveform has concentric circles with a number of wave front lines extending in a substantially radial direction from the center of the grinding wheel toward the outer periphery and concentric with the center of the grinding wheel. The shape of the grinding wheel surface in the cross section along the wavy is wavy,
Disclosed is an offset grinding wheel characterized in that the abrasive density inside the grinding wheel at the corrugated convex portion is small and the abrasive density inside the grinding wheel at the corrugated concave portion is large.
【０００５】更に本発明者は、特願平７−１１９３９０
号（特開平８−２９０３６２号）において、底に円板状
の下型を嵌合して軸線が鉛直になるように設置した円筒
内で上型と下型の間に結合剤を混合した砥粒粉末よりな
る砥粒配合物を挟んで高圧でプレスして円板状に成形し
た後、その円板状成型品を加熱焼成する砥石車の製造法
において、該円筒内で上面に凹凸を有する下型上面に一
定の厚さに砥粒配合物を堆積して砥粒層となし、該砥粒
層の上に下面に凹凸を有する上型を置いてプレス成形
し、両面に凹凸を有する円板状に成型することにより、
切断砥石車の内部に砥粒密度の高い部分から砥粒密度の
低い部分まで砥粒密度の分布を形成することを特徴とす
る切断砥石車の製造法及びその切断砥石車を開示した。[0005] Further, the present inventor has disclosed in Japanese Patent Application No. 7-119390.
(Japanese Patent Application Laid-Open No. Hei 8-290362), a grinding method in which a disc-shaped lower mold is fitted to the bottom and a binder is mixed between the upper mold and the lower mold in a cylinder installed so that the axis is vertical. In a method of manufacturing a grinding wheel in which a disc-shaped product is heated and fired after pressing the disc at a high pressure with an abrasive compound composed of granulated powder sandwiched between the discs, the top surface is uneven in the cylinder. An abrasive compound is deposited on the upper surface of the lower mold to a certain thickness to form an abrasive layer, and an upper mold having irregularities on the lower surface is placed on the abrasive layer and press-molded, and a circle having irregularities on both surfaces is formed. By molding into a plate,
A method for manufacturing a cutting wheel, characterized by forming a distribution of abrasive density from a portion having a high abrasive density to a portion having a low abrasive density inside a cutting wheel, and a cutting wheel thereof.
【０００６】[0006]
【発明が解決しようとする課題】上記従来のダイヤモン
ド砥石車やＣＢＮ砥石車は、硬質材料の研削の効率がす
ぐれているが、極めて高価であり、又ダイヤモンド砥粒
が目詰まりを起こすと切削効率が低下する。特にアルミ
ニウム、銅、真鍮等の軟質金属等を研削したり、或いは
塗装面の塗膜の研削除去のために使用すると、しばしば
目詰まりを起こし、切れ味が悪化し、摩擦熱によりダイ
ヤモンドが燃焼劣化し、砥石の寿命が低下するという問
題があった。The above-mentioned conventional diamond grinding wheels and CBN grinding wheels are excellent in the efficiency of grinding hard materials, but are extremely expensive, and when the diamond abrasive grains are clogged, the cutting efficiency is reduced. Decrease. Especially when grinding soft metals such as aluminum, copper, brass, etc., or using it for grinding removal of the paint film on the painted surface, clogging often occurs, the sharpness deteriorates, and diamond burns due to frictional heat and deteriorates. However, there is a problem that the life of the grindstone is reduced.
【０００７】従って本発明は、安価に使用することがで
きるダイヤモンド砥石車やＣＢＮ砥石車を提供すること
を目的とする。更に本発明の他の目的は、研削速度がす
ぐれ、長寿命で且つ目詰まりの少ない砥石車を提供する
ことを目的とする。Accordingly, it is an object of the present invention to provide a diamond wheel and a CBN wheel which can be used at low cost. Still another object of the present invention is to provide a grinding wheel having an excellent grinding speed, a long life and little clogging.
【０００８】[0008]
【課題を解決するための手段】上記目的を達成すべく、
本発明者は鋭意研究を重ねた結果、通常の砥石車に用い
られる炭化珪素等の砥粒を用いたオフセット砥石車又は
切断砥石車の切削面の一部にダイヤモンドチップ等の超
硬チップ板を埋設し、或いはダイヤモンド砥粒等の超砥
粒を配置して一体成形することにより、砥石車の表面の
一部に超砥粒を配設することができ、この砥石車は炭化
珪素等の通常の研削砥粒部とダイヤモンドチップ等の超
硬チップが交互に配置されて交互に被研削物に摺動し、
ダイヤモンド研削砥石チップ等の目詰まりを極めて小さ
くすることができること、ダイヤモンドの使用量を極め
て少なくして、切削効率を上げることができることを見
出し本発明を完成するに到った。In order to achieve the above object,
As a result of repeated studies, the present inventor has found that a part of a cutting surface of an offset grinding wheel or a cutting wheel using abrasive grains such as silicon carbide used for a normal grinding wheel is provided with a carbide chip plate such as a diamond chip. By embedding or arranging super-abrasive grains such as diamond abrasive grains and integrally forming, super-abrasive grains can be arranged on a part of the surface of the grinding wheel. Grinding parts and carbide tips such as diamond chips are alternately arranged and alternately slide on the workpiece,
The present inventors have found that clogging of a diamond grinding wheel tip or the like can be extremely reduced, and that the amount of diamond used can be extremely reduced to improve cutting efficiency, and the present invention has been completed.
【０００９】即ち、砥粒を結合剤等と配合してなる砥粒
配合物を圧縮成型し、焼成してなる砥石車において、該
砥石車の表面の一部がダイヤモンド砥粒等よりなる超砥
粒を含む砥石により形成されて全体が一体成形され、砥
石車の回転、研削時に超砥粒を含む砥石部分と超砥粒を
含まない砥石部分が交互に被研削作物に摺動するように
したことを特徴とする超砥粒砥石を配設した砥石車を要
旨とする。That is, in a grinding wheel obtained by compression-molding and firing an abrasive grain compound obtained by blending abrasive grains with a binder or the like, a super-abrasive in which a part of the surface of the grinding wheel is made of diamond abrasive grains or the like. It is formed by a grindstone containing grains and the whole is integrally formed, so that the grinding wheel part containing superabrasive grains and the grindstone part without superabrasive grains alternately slide on the workpiece to be ground during rotation and grinding of the grinding wheel. The gist of the present invention is a grinding wheel provided with a superabrasive grinding wheel.
【００１０】他の本発明は、底に円板状の下型を嵌合し
て軸線が鉛直になるように設置した円筒内で上型と下型
の間に結合剤を混合した砥粒粉末よりなる砥粒配合物を
挟んで高圧でプレスして円板状に成形した後、その円板
状成型品を加熱焼成する砥石車の製造法において、該円
筒内で該下型上面に超砥粒チップを適数個配置し、その
上に一定の厚さに砥粒配合物を堆積して砥粒層となし、
その上に上型をかぶせて圧縮成形し、砥粒配合物と超砥
粒チップを一体成形することを特徴とする超砥粒砥石を
配設した砥石車の製造方法を要旨とする。Another aspect of the present invention is an abrasive powder in which a binder is mixed between an upper mold and a lower mold in a cylinder which is fitted with a disc-shaped lower mold at the bottom and whose axis is set vertically. In a method of manufacturing a grinding wheel in which a disc-shaped product is heated and fired after pressing at high pressure with an abrasive composition comprising Arrange an appropriate number of grain chips, deposit an abrasive compound on it to a certain thickness to form an abrasive layer,
The gist of the invention is a method of manufacturing a grinding wheel provided with a superabrasive grinding wheel, wherein an upper die is placed thereon and compression molded, and an abrasive composition and a superabrasive chip are integrally formed.
【００１１】更に他の本発明は底に円板状の下型を嵌合
して軸線が鉛直になるように設置した円筒内で上型と下
型の間に結合剤を混合した砥粒粉末よりなる砥粒配合物
を挟んで高圧でプレスして円板状に成形した後、その円
板状成型品を加熱焼成する砥石車の製造法において、該
円筒内で該下型上面の一部の適数個所に超砥粒を含む砥
粒配合物を配設し、その上に一定の厚さに超砥粒を含ま
ない砥粒配合物を堆積して砥粒層となし、その上に上型
をかぶせて圧縮成形し、全体を一体成形することを特徴
とする超砥粒砥石を配設した砥石車の製造方法を要旨と
する。[0011] Still another aspect of the present invention is an abrasive powder in which a binder is mixed between an upper mold and a lower mold in a cylinder set so that a disc-shaped lower mold is fitted to the bottom and the axis is vertical. In a method for manufacturing a grinding wheel in which a disc-shaped product is heated and fired after pressing into a disc by pressing at a high pressure with an abrasive composition comprising the same, a part of the upper surface of the lower die in the cylinder An abrasive composition containing superabrasives is arranged at an appropriate number of places, and an abrasive composition containing no superabrasives is deposited on the abrasive composition to a certain thickness to form an abrasive layer, and an abrasive layer is formed thereon. The gist of the present invention is a method of manufacturing a grinding wheel provided with a superabrasive grinding wheel, which is characterized in that an upper die is covered and compression-molded, and the whole is integrally formed.
【００１２】次に本発明の内容を図面により詳細に説明
する。図１は本発明の砥石車の一例のオフセット形砥石
車の平面図、図２は同Ａ−Ａ断面図、図３は同円弧Ｂ−
Ｂに沿う拡大断面図である。１はオフセット砥石車２の
砥粒部１であり、公知の砥石車と同様の炭化珪素等の砥
粒よりなる。Next, the contents of the present invention will be described in detail with reference to the drawings. FIG. 1 is a plan view of an offset grinding wheel as an example of the grinding wheel of the present invention, FIG. 2 is a sectional view taken along the line AA, and FIG.
It is an expanded sectional view which follows B. Reference numeral 1 denotes an abrasive grain portion 1 of an offset grinding wheel 2, which is made of abrasive grains such as silicon carbide similar to those of a known grinding wheel.
【００１３】オフセット砥石車２の表面３に放射状に波
頭線４が延び、同心円の沿った断面が鋸歯状波をなす波
型５の凹凸を設ける。鋸歯状波の緩い斜面が砥石車の回
転方向前方に面し、鋸歯状波の急斜面が回転方向後方に
向くように設けるのが好ましいが、逆方向に向くように
設けることもできる。波型５の放射状の波の数は特に制
限はないが、砥石車の直径やその使用目的に応じて、１
０〜１００の波数が用いられる。例えば直径１００mmの
オフセット砥石車２に対しては、１５〜５０の波数が好
ましく用いられる。A wave front line 4 extends radially on the surface 3 of the offset grinding wheel 2 and has a corrugated shape 5 having a concentric circular cross section forming a sawtooth wave. Preferably, the gentle slope of the sawtooth wave faces forward in the rotational direction of the grinding wheel, and the steep slope of the sawtooth wave faces backward in the rotational direction. However, it may be provided so as to face in the opposite direction. The number of radial waves of the wave type 5 is not particularly limited, but may vary depending on the diameter of the grinding wheel and the purpose of use.
Wave numbers from 0 to 100 are used. For example, for an offset grinding wheel 2 having a diameter of 100 mm, a wave number of 15 to 50 is preferably used.
【００１４】６はオフセット砥石車２の表面３に埋設さ
れたダイヤモンドチップ等の超砥粒チップ板６であり、
表面３の波型５の緩い側の斜面よりなる波面７に沿って
表面が露出するように埋設されている。超砥粒チップ板
６はダイヤモンド砥粒、立方晶窒化硼素（ＣＢＮ）砥
粒、タングステンカーバイド砥粒等の超砥粒をメタルボ
ンド、ビトリファイドボンド、レジノイドボンド等の公
知の結合法で結合したもの、上記超砥粒と溶融アルミナ
や炭化珪素等よりなる一般砥粒を混合して公知の砥石車
の製造法と同様の方法により圧縮成形したのち焼成して
製造したもの、上記超砥粒とボリイミド樹脂等の耐熱合
成樹脂粉末と混合して圧縮成形したもの、ポリイミド樹
脂等の耐熱合成樹脂製の基板上にダイヤモンド砥粒、Ｃ
ＢＮ砥粒等の超砥粒を電着、メタルボンド、ビトリファ
イドボンド、レジノイドボンド等の公知の結合法で固着
したもの等が用いられる。Reference numeral 6 denotes a superabrasive chip plate 6 such as a diamond chip embedded in the surface 3 of the offset grinding wheel 2,
The surface 3 is buried so that the surface is exposed along a wavefront 7 formed by a slope on the gentle side of the corrugation 5. The superabrasive chip plate 6 is formed by bonding superabrasive grains such as diamond abrasive grains, cubic boron nitride (CBN) abrasive grains, and tungsten carbide abrasive grains by a known bonding method such as a metal bond, a vitrified bond, and a resinoid bond. The above-mentioned super-abrasive grains and a mixture of general abrasive grains made of fused alumina or silicon carbide, compression-molded by a method similar to a known grinding wheel manufacturing method, and then baked, the super-abrasive grains and a polyimide resin Compression molded by mixing with a heat-resistant synthetic resin powder such as
A super-abrasive such as BN abrasive is fixed by a known bonding method such as electrodeposition, metal bond, vitrified bond, and resinoid bond.
【００１５】超砥粒チップ板６の形状及び大きさは特に
制限はないが、厚さ１．５〜３．５mmのものが用いら
れ、例えば厚さ２mm程度の薄い細長い板状のものが用い
られる。又チップ板６は全体が一定の厚みを有しない
で、一端が厚く他端が薄くなる楔形の形状を有するもの
でもよい。超砥粒チップ板６を図１乃至図３に示すよう
にオフセット砥石車２の波型５の斜面７に沿って放射状
に等間隔に埋設するのが望ましい。波型５の１つの斜面
７全面を覆うように埋設してもよいし、超砥粒チップ板
６の幅を狭くして、図４に示すように１つの波面７の波
頭線４に近い部分のみに埋設してもよい。The shape and size of the superabrasive chip plate 6 are not particularly limited, but those having a thickness of 1.5 to 3.5 mm, for example, a thin and long plate having a thickness of about 2 mm are used. Can be Further, the chip plate 6 may have a wedge shape in which one end is thick and the other end is thin, instead of having a constant thickness as a whole. As shown in FIGS. 1 to 3, it is desirable that the superabrasive chip plates 6 be radially embedded at equal intervals along the slope 7 of the corrugation 5 of the offset grinding wheel 2. It may be buried so as to cover the entire slope 7 of the corrugation 5, or the width of the superabrasive chip plate 6 may be reduced so that a portion of the corrugation 7 close to the crest line 4 as shown in FIG. It may be buried only in.
【００１６】埋設する超砥粒チップ板６の数は特に制限
はないが、２枚乃至１２枚が用いられ、少なくともチッ
プ板６を配設しない波型５の斜面７が所々に存在すれば
よいが、埋設数を多くするとコストが嵩む割りに切削効
率向上の効果が少ないので、コスト対効果を考慮して超
砥粒チップ板６の埋設数を決定する。図１に示すような
直径１００mm、波数３６のオフセット砥石車２の場合、
３〜６枚の超砥粒チップ板６が好ましく用いられる。The number of superabrasive chip plates 6 to be buried is not particularly limited, but two to twelve chips are used, and it is sufficient that at least the slope 7 of the corrugated shape 5 where no chip plate 6 is provided is present. However, if the number of embedded chips increases, the cost increases, but the effect of improving the cutting efficiency is small. Therefore, the number of embedded superabrasive chip plates 6 is determined in consideration of cost effectiveness. In the case of an offset grinding wheel 2 having a diameter of 100 mm and a wave number of 36 as shown in FIG.
Three to six superabrasive chip plates 6 are preferably used.
【００１７】図５は本発明の超砥粒砥石を配設した砥石
車の他の実施態様を示す平面図であり、通常の平面状切
削面を有するオフセット砥石車２の表面３に超砥粒チッ
プ板６を放射状に埋設し、更に円周の一部に沿って埋設
したものである。オフセット砥石車２の表面３に放射状
に超砥粒チップ板６を埋設する代わりに、図６に示すよ
うに円形その他任意の形状の超砥粒チップ板６をオフセ
ット砥石車２の表面に適宜配設することもできる。オフ
セット砥石車２の平面状の表面３に超砥粒チップ板６を
埋設するときには、超砥粒チップ板６の面がオフセット
砥石車２の表面３から若干突出するようにするのが好ま
しい。突出高さは特に制限はないが、突出高さが研削時
の振動に影響を与えるので、０．３〜１mmの高さが好ま
しい。FIG. 5 is a plan view showing another embodiment of the grinding wheel provided with the super-abrasive grindstone of the present invention. The super-abrasive grain is formed on the surface 3 of the offset grinding wheel 2 having a normal flat cutting surface. The chip plate 6 is embedded radially and further embedded along a part of the circumference. Instead of radially embedding the superabrasive chip plate 6 on the surface 3 of the offset grinding wheel 2, a circular or other arbitrary shaped superabrasive chip plate 6 is appropriately arranged on the surface of the offset grinding wheel 2 as shown in FIG. It can also be set up. When the superabrasive chip plate 6 is embedded on the planar surface 3 of the offset grinding wheel 2, it is preferable that the surface of the superabrasive chip plate 6 slightly protrudes from the surface 3 of the offset grinding wheel 2. The protrusion height is not particularly limited, but is preferably 0.3 to 1 mm because the protrusion height affects the vibration during grinding.
【００１８】本発明の超砥粒チップを埋設した砥石車は
切断砥石車、カップ形砥石車にも適用することができ
る。図７、図８は本発明の超砥粒チップを埋設した切断
砥石車の一例の平面図及び円弧Ｃ−Ｃに沿う断面図であ
る。図１乃至図３に示すオフセット砥石車２の表面３の
波型５と同様の放射状波型５が切断砥石車９の両面に設
けられている。両面の波型５の波面７に沿って複数個の
超砥粒チップ板６が放射状に埋設される。切断砥石車９
の片面にのみ超砥粒チップ板６を埋設してもよい。The grinding wheel in which the superabrasive chip of the present invention is embedded can be applied to a cutting grinding wheel and a cup-type grinding wheel. 7 and 8 are a plan view and a cross-sectional view taken along a circular arc CC of an example of a cutting wheel in which the superabrasive chip of the present invention is embedded. Radial corrugations 5 similar to corrugations 5 on the surface 3 of the offset grinding wheel 2 shown in FIGS. 1 to 3 are provided on both sides of the cutting wheel 9. A plurality of superabrasive chip plates 6 are radially embedded along the wavefronts 7 of the corrugations 5 on both sides. Cutting wheel 9
The superabrasive chip plate 6 may be buried only on one side.
【００１９】切断砥石車９の波面７に埋設される超砥粒
チップ板６も前記オフセット砥石車２に埋設した超砥粒
チップ板６と同様のものを用いることができるが、切断
砥石車９の厚みを考慮して、オフセット砥石車２の場合
よりも薄い適当な厚みの超砥粒チップ板６が選択され
る。放射状に埋設する超砥粒チップ板６は切断砥石車９
の周辺に近い、実際に切断に使用される部分のみに埋設
すれば充分である。切断砥石車９に埋設する超砥粒チッ
プ板６の数は片面に２〜６個が好ましく、両面に埋設す
る場合はその位置が交互に等間隔になるように配設する
のが望ましい。The superabrasive chip plate 6 embedded in the wave front 7 of the cutting wheel 9 can be the same as the superabrasive chip plate 6 embedded in the offset grinding wheel 2. In consideration of the thickness of the grinding wheel, a superabrasive chip plate 6 having an appropriate thickness smaller than that of the offset grinding wheel 2 is selected. The superabrasive chip plate 6 embedded radially is a cutting wheel 9
Suffices to embed only in the part that is actually used for cutting, which is near the periphery of. The number of superabrasive chip plates 6 buried in the cutting wheel 9 is preferably 2 to 6 on one side, and when buried on both sides, it is desirable to arrange them so that their positions are alternately and equally spaced.
【００２０】図９及び図１０は本発明の超砥粒チップを
埋設した切断砥石車の他の実施態様を示す。切断砥石車
９は通常の平面状切断砥石車９であり、その両面には波
型は形成されていない。平面状切断砥石車９の片面又は
両面に任意の形状の超砥粒チップ板６を適数個埋設す
る。超砥粒チップ板６が切断砥石車９の表面３から僅か
に突出するように埋設することができる。FIGS. 9 and 10 show another embodiment of the cutting wheel in which the superabrasive chip of the present invention is embedded. The cutting wheel 9 is a normal planar cutting wheel 9 and no corrugations are formed on both surfaces thereof. An appropriate number of superabrasive chip plates 6 having an arbitrary shape are buried on one or both surfaces of the planar cutting wheel 9. The superabrasive chip plate 6 can be embedded so as to slightly protrude from the surface 3 of the cutting wheel 9.
【００２１】本発明の超砥粒チップを埋設した砥石車を
製造する方法は、例えば図１〜図３に示すオフセット砥
石車２の場合には、図１１の断面図に示すように円筒状
外型１０と上面に放射状波型を有する下型１１及びオフ
セット砥石車２の裏面を反転した形状の下面を有する上
型１３よりなる金型を用いる。下型１１及び上型１３の
中央にはそれぞれピン１４を挿通する中心孔１５を有す
る。The method of the present invention for manufacturing a grinding wheel having a superabrasive chip embedded therein, for example, in the case of an offset grinding wheel 2 shown in FIGS. A mold including a mold 10, a lower mold 11 having a radial wave pattern on the upper surface, and an upper mold 13 having a lower surface having a shape obtained by inverting the back surface of the offset grinding wheel 2 is used. The center of the lower mold 11 and the upper mold 13 has a center hole 15 through which the pin 14 is inserted.
【００２２】この金型の円筒状外型１０の底部に下型１
１を嵌め、その波型の波面に沿って超砥粒チップ板６を
配置し、その上に薄く後述の砥粒配合物１６を入れ、全
体を一定の深さにならす。その砥粒層１２上で下端中央
部がへ字状に窪んだ成形板を回転して、砥粒層１２上面
中央が山形になるように充填し、その上にガラス繊維等
よりなる補強布１７を載置し、更に同様にして砥粒配合
物１６を一定の深さに入れてその上を上型１３で押さ
え、油圧プレス装置で加圧する。必要に応じてガラス繊
維等よりなる補強布１７を砥粒層１２の上面、或いは砥
粒層１２の中間にもう一枚挟んでプレスしてもよい。A lower mold 1 is provided at the bottom of the cylindrical outer mold 10 of the mold.
Then, the superabrasive chip plate 6 is arranged along the corrugated wavefront, and an abrasive compound 16 described later is thinly put thereon, and the whole is leveled to a constant depth. On the abrasive layer 12, a forming plate having a lower central portion depressed in a letter shape is rotated to fill the upper surface of the abrasive layer 12 so that the center of the upper surface becomes a mountain shape, and a reinforcing cloth 17 made of glass fiber or the like is placed thereon. Is placed in the same manner, the abrasive composition 16 is put into a certain depth in the same manner, the upper part is pressed by the upper die 13, and pressure is applied by a hydraulic press device. If necessary, another reinforcing cloth 17 made of glass fiber or the like may be pressed between the upper surface of the abrasive layer 12 and the intermediate layer of the abrasive layer 12.
【００２３】本発明の砥石車の製造に用いられる砥粒は
炭化珪素、アルミナ、ジルコニヤ、金剛砂等公知の砥石
車用砥粒を用いることができる。砥粒に結合剤としてレ
ゾール型或いはベンジリックエーテル型等の液状フェノ
ール樹脂及び粉状フェノール樹脂を配合して砥粒配合物
１６とする。その配合割合は砥粒１００重量部に対し結
合剤の量は１０〜３０重量部が適当であり、１５〜２５
重量部が更に好ましい。Known abrasive grains for grinding wheels such as silicon carbide, alumina, zirconia, and fine sand can be used as abrasive grains used in the production of the grinding wheel of the present invention. A liquid phenol resin such as a resol type or a benzylic ether type and a powdery phenol resin are blended as a binder into the abrasive grains to form an abrasive grain composition 16. The mixing ratio of the binder is preferably 10 to 30 parts by weight with respect to 100 parts by weight of the abrasive grains.
Part by weight is more preferred.
【００２４】砥粒配合物１６には更に有機溶媒その他の
液状の流動性調整剤を添加することができる。又、氷晶
石、炭酸カルシウム等の粉状充填剤、着色料等通常の砥
石車の製造の際に砥粒に配合する添加物を適宜配合する
ことができる。The abrasive composition 16 may further contain an organic solvent or other liquid fluidity modifier. Further, additives such as powdered fillers such as cryolite and calcium carbonate, coloring agents, and the like, which are added to the abrasive grains during the production of ordinary grinding wheels, can be appropriately compounded.
【００２５】金型により砥粒配合物１６をプレスする圧
力は特に制限はないが、通常１００〜１５０kgf/cm 2が
用いられる。プレス温度は８０〜１００℃の通常のプレ
ス温度が用いられる。The pressure at which the abrasive composition 16 is pressed by the mold
The force is not particularly limited, but is usually 100 to 150 kgf / cm 2 is
Used. Press temperature is 80 ~ 100 ℃
Temperature is used.
【００２６】このようにして円板状に成型された砥粒成
型体は１７０〜１８０℃で約２４時間かけて焼成され
る。最初の１４時間で常温から１７０℃付近まで徐々に
昇温し、その後１７０〜１８０℃で約１０時間保った
後、徐冷する。The disc-shaped abrasive grain compact is fired at 170 to 180 ° C. for about 24 hours. In the first 14 hours, the temperature is gradually raised from room temperature to around 170 ° C., then kept at 170 to 180 ° C. for about 10 hours, and then gradually cooled.
【００２７】本発明の砥石車の製造の際、砥粒配合物１
６に粉状ゴムを配合すると弾性を有する砥石車が得られ
る。特に上型１３の下に補強布１７の上になるように入
れる砥粒配合物１６はゴムを配合したものが望ましい。
補強布１７の上にゴムを配合した砥粒配合物１６を入れ
ると、プレスしたときガラス繊維に無理な応力がかかっ
て繊維が切断されるのを防止することができる。ゴムを
配合するときは上記の焼成温度を配合するゴムの種類に
応じて適当な温度に調節する必要がある。In the production of the grinding wheel of the present invention, the abrasive compound 1
When powder rubber is blended into 6, a grinding wheel having elasticity can be obtained. In particular, it is desirable that the abrasive compound 16 to be put on the reinforcing cloth 17 under the upper mold 13 is a compound containing rubber.
When the abrasive compound 16 containing rubber is put on the reinforcing cloth 17, it is possible to prevent the glass fiber from being cut due to excessive stress applied to the glass fiber when pressed. When compounding rubber, it is necessary to adjust the firing temperature to an appropriate temperature according to the type of rubber to be compounded.
【００２８】砥石車を構成する砥粒配合物１６全体に粉
状ゴムを配合すると砥石車全体が可撓性を有する弾性砥
石車となる。粉末ゴムの種類は特に制限はないが、ＳＢ
Ｒ、ＮＢＲ等の合成ゴム、天然ゴムが好ましく用いられ
る。粉状ゴムの配合量は必要な可撓性に応じて調節する
ことができる。例えば砥粒１００重量部に対してゴム粉
末１０〜７００重量部を添加することができる。When powdered rubber is compounded into the whole abrasive grain composition 16 constituting the grinding wheel, the whole grinding wheel becomes an elastic grinding wheel having flexibility. There are no particular restrictions on the type of powdered rubber, but SB
Synthetic rubber such as R and NBR and natural rubber are preferably used. The amount of the powdery rubber can be adjusted according to the required flexibility. For example, 10 to 700 parts by weight of rubber powder can be added to 100 parts by weight of abrasive grains.
【００２９】上記粉状ゴムの代わりに熱硬化性のポリウ
レタン樹脂のような弾性体粉末を用いることもできる。
ポリウレタン樹脂粉末を用いると、粉状ゴムを配合した
場合よりも弾性砥石車の耐熱性が高くなり、重研削が可
能となる。An elastic powder such as a thermosetting polyurethane resin may be used in place of the powder rubber.
When the polyurethane resin powder is used, the heat resistance of the elastic grinding wheel is higher than when powdered rubber is compounded, and heavy grinding can be performed.
【００３０】本発明の超砥粒チップを埋設した切断砥石
車９を製造する方法も、本質的には上記オフセット砥石
車２の製造方法と同様であり、下型１１及び上型１３を
略平面状のものを使用すればよい。両面に波形を有する
切断砥石車９の両面に超砥粒チップ板６を有する切断砥
石車９を製造する場合は、上型１３の下面にも波型５を
設け、その上型１３の波面７に沿って、適当な粘着剤等
で超砥粒チップ板６を一時的に保持して、砥粒層１２上
に被せるようにすればよい。The method for manufacturing the cutting wheel 9 in which the superabrasive chips of the present invention are embedded is essentially the same as the method for manufacturing the offset wheel 2 described above. What is necessary is just to use the thing of a shape. When manufacturing a cutting wheel 9 having a superabrasive chip plate 6 on both sides of a cutting wheel 9 having corrugations on both sides, a corrugation 5 is also provided on the lower surface of the upper mold 13, and the wavefront 7 of the upper mold 13 is provided. The superabrasive chip plate 6 may be temporarily held with a suitable adhesive or the like so as to cover the abrasive layer 12.
【００３１】上記の説明では本発明の超砥粒砥石を配設
した砥石車を製造する方法として、予め超砥粒を含む砥
粒を板状等のチップ状に成形、焼成したチップ板６を砥
石車の成形用下型１１の上面の適数個所に配置して一般
砥粒配合物で覆い、全体を一体成形する方法を示した
が、予め成形したチップ板６を用いる代わりに、超砥粒
を配合した砥粒配合物を上記砥石車の成形用下型１１の
上面の適数個所に適当な治具を用いて層状に配置し、そ
の上を一般砥粒配合物で覆い、上型１３を被せて、全体
を一体成形し、焼成して製造することができる。この方
法によれば、超砥粒を含む部分と一般砥粒のみからなる
部分が連続的に一体に結合して、砥石車全体の結合強度
が強化される。In the above description, as a method of manufacturing a grinding wheel provided with the superabrasive grindstone of the present invention, a chip plate 6 in which abrasive grains containing superabrasive grains are previously formed into a chip shape such as a plate shape and fired is used. The method of disposing at an appropriate number of places on the upper surface of the lower mold 11 for forming a grinding wheel, covering with a general abrasive compound, and integrally forming the whole is shown. However, instead of using the chip plate 6 preformed, a superabrasive is used. The abrasive composition containing the grains is arranged in a layer at an appropriate number of places on the upper surface of the lower mold 11 for forming the grinding wheel by using an appropriate jig, and the upper part is covered with a general abrasive composition. 13, the whole can be integrally molded and fired. According to this method, the portion including the super-abrasive grains and the portion including only the general abrasive grains are continuously and integrally bonded, and the bonding strength of the entire grinding wheel is enhanced.
【００３２】上記の本発明の超砥粒砥石を配設した砥石
車の製造法のうち、超砥粒チップ板６を用いる方法と超
砥粒を用いて直接砥石車を成形する方法を比較すると、
超砥粒チップ板６を用いる方法は、砥石車全体を成形、
焼成する条件と、超砥粒チップ板６のみを成形、焼成す
る条件を別々に設定することができるので、砥石車の超
砥粒砥石の部分と一般砥粒砥石の部分の性状を別々に自
由に選択することが可能となる。Among the above-described methods for manufacturing a grinding wheel provided with the superabrasive grinding wheel of the present invention, a method using a superabrasive chip plate 6 and a method of directly forming a grinding wheel using superabrasives are compared. ,
The method using the superabrasive chip plate 6 is to form the entire grinding wheel,
Since the firing conditions and the conditions for forming and firing only the superabrasive chip plate 6 can be set separately, the properties of the superabrasive grinding wheel portion and the general abrasive wheel portion of the grinding wheel can be set separately. Can be selected.
【００３３】[0033]
【発明の効果】本発明の超砥粒チップを埋設した砥石車
によれば、一般砥粒を用いる通常の砥石車に比較して、
切削速度が大幅に向上する。従来の金属基板上に超砥粒
チップを固着した砥石車では、目詰まりを生ずる場合で
も、本発明の砥石車の場合は一般砥粒の部分と超砥粒チ
ップ板の部分が交互に工作物に摺動するために、脱落し
た一般砥粒が清掃効果を発揮して、軟質金属を切削する
場合でも超砥粒の砥石の目詰まりが全く生じない。According to the grinding wheel in which the superabrasive tip of the present invention is embedded, compared with a normal grinding wheel using general abrasive grains,
Cutting speed is greatly improved. In a conventional grinding wheel in which a superabrasive chip is fixed on a metal substrate, even if clogging occurs, in the case of the grinding wheel of the present invention, a portion of a general abrasive grain and a portion of a superabrasive chip plate are alternately formed. Because of the sliding, the dropped general abrasive grains exert a cleaning effect, and even when cutting soft metal, no clogging of the superabrasive abrasive grains occurs.
【００３４】砥粒配合物１６にゴム等の弾性体粉末を配
合すると弾性砥石車が得られ、曲面の研削に好都合であ
る。When an elastic powder such as rubber is blended with the abrasive compound 16, an elastic grinding wheel is obtained, which is convenient for grinding a curved surface.
【図１】本発明の超砥粒砥石を配設した砥石車の一例の
平面図である。FIG. 1 is a plan view of an example of a grinding wheel provided with a superabrasive grinding wheel of the present invention.
【図２】本発明の超砥粒砥石を配設した砥石車の一例の
Ａ−Ａ断面図である。FIG. 2 is an AA cross-sectional view of an example of a grinding wheel provided with a superabrasive grinding wheel of the present invention.
【図３】本発明の超砥粒砥石を配設した砥石車の一例の
円弧Ｂ−Ｂに沿う断面図である。FIG. 3 is a sectional view along an arc BB of an example of a grinding wheel provided with a superabrasive grinding wheel of the present invention.
【図４】本発明の超砥粒砥石を配設した砥石車の一例の
円弧Ｂ−Ｂに沿う断面図である。FIG. 4 is a cross-sectional view along an arc BB of an example of a grinding wheel provided with a superabrasive grinding wheel of the present invention.
【図５】本発明の超砥粒砥石を配設した砥石車の一例の
平面図である。FIG. 5 is a plan view of an example of a grinding wheel provided with a superabrasive grinding wheel of the present invention.
【図６】本発明の超砥粒砥石を配設した砥石車の一例の
平面図である。FIG. 6 is a plan view of an example of a grinding wheel provided with a superabrasive grinding wheel of the present invention.
【図７】本発明の超砥粒砥石を配設した砥石車の一例の
平面図である。FIG. 7 is a plan view of an example of a grinding wheel provided with a superabrasive grinding wheel of the present invention.
【図８】本発明の超砥粒砥石を配設した砥石車の一例の
円弧Ｃ−Ｃに沿う断面図である。FIG. 8 is a cross-sectional view along an arc CC of an example of a grinding wheel provided with the superabrasive grinding wheel of the present invention.
【図９】本発明の超砥粒砥石を配設した砥石車の一例の
平面図である。FIG. 9 is a plan view of an example of a grinding wheel provided with a superabrasive grinding wheel of the present invention.
【図１０】本発明の超砥粒砥石を配設した砥石車の一例
の円弧Ｄ−Ｄに沿う断面図である。FIG. 10 is a cross-sectional view along an arc DD of an example of a grinding wheel provided with a superabrasive grinding wheel of the present invention.
【図１１】本発明の超砥粒砥石を配設した砥石車の製造
方法の説明図である。FIG. 11 is an explanatory diagram of a method of manufacturing a grinding wheel provided with the superabrasive grinding wheel of the present invention.
１ 砥粒部 ２ オフセット砥石車 ３ 表面 ４ 波頭線 ５ 波型 ６ 超砥粒チップ板 ７ 波面 ９ 切断砥石車 １０ 円筒状外型 １１ 下型 １２ 砥粒層 １３ 上型 １４ ピン １５ 中心孔 １６ 砥粒配合物 １７ 補強布 DESCRIPTION OF SYMBOLS 1 Abrasive part 2 Offset grinding wheel 3 Surface 4 Wave front line 5 Wave form 6 Super-abrasive chip board 7 Wave surface 9 Cutting grinding wheel 10 Cylindrical outer mold 11 Lower mold 12 Abrasive grain layer 13 Upper mold 14 Pin 15 Center hole 16 Grinding Grain composition 17 Reinforced cloth
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｂ２４Ｄ 5/14 Ｂ２４Ｄ 5/14 7/00 7/00 Ｐ Ｆターム(参考） 3C063 AA02 AB05 BA02 BA24 BA25 BA40 BB02 BB03 BB04 BC02 BC03 BC05 BD01 BD08 BG07 BG10 CC02 CC19 EE01 EE15 EE31 FF20 FF30 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI theme coat ゛ (reference) B24D 5/14 B24D 5/14 7/00 7/00 PF term (reference) 3C063 AA02 AB05 BA02 BA24 BA25 BA40 BB02 BB03 BB04 BC02 BC03 BC05 BD01 BD08 BG07 BG10 CC02 CC19 EE01 EE15 EE31 FF20 FF30
Claims (15)
を圧縮成型し、焼成してなる砥石車において、該砥石車
の表面の一部がダイヤモンド砥粒等よりなる超砥粒を含
む砥石により形成されて全体が一体成形され、砥石車の
回転、研削時に超砥粒を含む砥石部分と超砥粒を含まな
い砥石部分が交互に被研削作物に摺動するようにしたこ
とを特徴とする超砥粒砥石を配設した砥石車。1. A grinding wheel formed by compression-molding and baking an abrasive composition obtained by blending abrasive grains with a binder, etc., wherein a part of the surface of the grinding wheel is made of diamond abrasive grains or the like. It is formed by a grindstone containing grains and the whole is integrally formed, so that the grinding wheel part containing superabrasive grains and the grindstone part without superabrasive grains alternately slide on the workpiece to be ground during rotation and grinding of the grinding wheel. A grinding wheel equipped with super abrasive grains.
超砥粒チップを埋設して一体成形した請求項１記載の超
砥粒砥石を配設した砥石車。2. A grinding wheel provided with a super-abrasive grinding wheel according to claim 1, wherein a super-abrasive grain such as a diamond tip is buried in the surface of the grinding wheel and integrally formed.
等の超砥粒を含む砥粒を配置し、他の部分には一般砥粒
を配置して、全体を一体成形した請求項１記載の超砥粒
砥石を配設した砥石車。3. The grinding wheel is provided with abrasive grains including superabrasive grains such as diamond abrasive grains on a part of its surface and general abrasive grains on the other part, and the whole is integrally formed. A grinding wheel provided with the superabrasive grinding wheel according to 1.
１、２又は３記載の超砥粒砥石を配設した砥石車。4. A grinding wheel provided with a superabrasive grinding wheel according to claim 1, wherein said grinding wheel is an offset grinding wheel.
型は該砥石車の中心部から外周部に向って多数の波頭線
が略放射状方向に延び且つ該砥石車の中心と同心の同心
円に沿った断面における砥石車表面の形状が波状をなす
波型であって、該波型の波面に沿って放射状にダイヤモ
ンドチップ等の超砥粒チップを埋設した請求項４記載の
超砥粒砥石を配設した砥石車。5. The surface of the grinding wheel has corrugated irregularities, and the wave shape has a number of wave front lines extending in a substantially radial direction from a center portion of the grinding wheel toward an outer peripheral portion thereof. 5. The grinding wheel surface in a cross section along a concentric circle concentric with the center is a wavy shape, and a superabrasive chip such as a diamond chip is buried radially along the wavy wave surface. A grinding wheel equipped with super abrasive grains.
又は３記載の超砥粒砥石を配設した砥石車。6. The grinding wheel according to claim 1, wherein said grinding wheel is a cutting wheel.
Or a grinding wheel provided with the superabrasive grinding wheel according to 3.
１、２又は３記載の超砥粒砥石を配設した砥石車。7. The grinding wheel according to claim 1, 2 or 3, wherein said grinding wheel is a cup-shaped grinding wheel.
し、該波型は該砥石車の中心部から外周部に向って多数
の波頭線が略放射状方向に延び且つ該砥石車の中心と同
心の同心円に沿った断面における砥石車表面の形状が波
状をなす波型であって、該砥石車の片面又は両面の該波
型の波面に沿って放射状にダイヤモンドチップ等の超砥
粒チップを埋設した請求項６記載の超砥粒チップを埋設
した砥石車。8. A grinding wheel having corrugated irregularities on one or both surfaces thereof, wherein the waveform has a large number of wave front lines extending in a substantially radial direction from a central portion to an outer peripheral portion of the grinding wheel. The shape of the surface of the grinding wheel in a cross section along a concentric circle concentric with the center of the wheel is a corrugated shape, and a diamond chip or the like radially extends along the corrugated wave surface on one or both surfaces of the grinding wheel. A grinding wheel having a superabrasive chip embedded therein, the abrasive wheel having an abrasive chip embedded therein.
した請求項１、２、３、４、５、６、７又は８記載の超
砥粒砥石を配設した砥石車。9. A grinding wheel provided with the superabrasive grinding wheel according to claim 1, wherein an elastic material powder such as rubber is blended with the abrasive grain compound.
化硼素（ＣＢＮ）砥粒、タングステンカーバイド砥粒等
の超砥粒である請求項１、２、３、４、５、６、７、８
又は９記載の超砥粒砥石を配設した砥石車。10. The super-abrasive grains, such as diamond abrasive grains, cubic boron nitride (CBN) abrasive grains, and tungsten carbide abrasive grains. , 8
Or a grinding wheel provided with the superabrasive grinding wheel according to 9.
方晶窒化硼素（ＣＢＮ）砥粒、タングステンカーバイド
砥粒等の超砥粒を公知の結合法で結合した超砥粒チップ
板である請求項２記載の超砥粒砥石を配設した砥石車。11. A superabrasive chip plate wherein said superabrasive chips are formed by bonding superabrasives such as diamond abrasives, cubic boron nitride (CBN) abrasives, and tungsten carbide abrasives by a known bonding method. A grinding wheel provided with the superabrasive grinding wheel according to item 2.
方晶窒化硼素（ＣＢＮ）砥粒、タングステンカーバイド
砥粒等の超砥粒と溶融アルミナや炭化珪素等よりなる一
般砥粒を混合して圧縮成形したのち焼成して製造した超
砥粒チップ板である請求項１１記載の超砥粒砥石を配設
した砥石車。12. The superabrasive chip is obtained by mixing superabrasive grains such as diamond abrasive grains, cubic boron nitride (CBN) abrasive grains, tungsten carbide abrasive grains, and general abrasive grains made of fused alumina, silicon carbide or the like. 12. A grinding wheel provided with a superabrasive grinding wheel according to claim 11, which is a superabrasive chip plate manufactured by compression molding and then firing.
方晶窒化硼素（ＣＢＮ）砥粒、タングステンカーバイド
砥粒等の超砥粒をポリイミド樹脂等の耐熱合成樹脂製の
基板上にダイヤモンド砥粒、ＣＢＮ砥粒等の超砥粒を電
着、メタルボンド、ビトリファイドボンド、レジノイド
ボンド等の公知の結合法で固着した超砥粒チップ板であ
る請求項２記載の超砥粒砥石を配設した砥石車。13. The super-abrasive chip is formed by applying super-abrasive grains such as diamond abrasive grains, cubic boron nitride (CBN) abrasive grains, tungsten carbide abrasive grains, etc. on a substrate made of a heat-resistant synthetic resin such as a polyimide resin. A super-abrasive grain plate in which super-abrasive grains such as CBN abrasive grains are fixed by a known bonding method such as electrodeposition, metal bond, vitrified bond, and resinoid bond. Grinding wheel.
になるように設置した円筒内で上型と下型の間に結合剤
を混合した砥粒粉末よりなる砥粒配合物を挟んで高圧で
プレスして円板状に成形した後、その円板状成型品を加
熱焼成する砥石車の製造法において、該円筒内で該下型
上面に超砥粒チップを適数個配置し、その上に一定の厚
さに砥粒配合物を堆積して砥粒層となし、その上に上型
をかぶせて圧縮成形し、砥粒配合物と超砥粒チップを一
体成形することを特徴とする超砥粒砥石を配設した砥石
車の製造方法。14. An abrasive made of abrasive powder in which a binder is mixed between an upper die and a lower die in a cylinder which is fitted with a disk-shaped lower die at the bottom and set so that the axis is vertical. In a method for manufacturing a grinding wheel in which the mixture is pressed at a high pressure to form a disc and then the disc-shaped molded product is heated and fired, a superabrasive chip is applied to the upper surface of the lower die in the cylinder. Arrange several pieces, deposit the abrasive composition to a certain thickness on it to form an abrasive layer, cover it with an upper mold and press-mold, and integrate the abrasive composition and superabrasive tip A method for manufacturing a grinding wheel provided with a superabrasive grinding wheel characterized by forming.
になるように設置した円筒内で上型と下型の間に結合剤
を混合した砥粒粉末よりなる砥粒配合物を挟んで高圧で
プレスして円板状に成形した後、その円板状成型品を加
熱焼成する砥石車の製造法において、該円筒内で該下型
上面の一部の適数個所に超砥粒を含む砥粒配合物を配設
し、その上に一定の厚さに超砥粒を含まない砥粒配合物
を堆積して砥粒層となし、その上に上型をかぶせて圧縮
成形し、全体を一体成形することを特徴とする超砥粒砥
石を配設した砥石車の製造方法。15. An abrasive made of abrasive powder in which a binder is mixed between an upper mold and a lower mold in a cylinder which is fitted with a disc-shaped lower mold at the bottom and set so that the axis is vertical. In a method of manufacturing a grinding wheel in which a compound is sandwiched and pressed at a high pressure to form a disk, and then the disk-shaped molded product is heated and fired, a suitable number of parts of the upper surface of the lower mold in the cylinder are formed. Abrasive composition containing superabrasives is placed on top of it, and an abrasive composition without superabrasives is deposited to a certain thickness on it to form an abrasive layer, and an upper mold is placed on it. A method for manufacturing a grinding wheel provided with a superabrasive grinding wheel, wherein the whole is integrally formed by compression molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22865798A JP3962966B2 (en) | 1998-07-28 | 1998-07-28 | Grinding wheel equipped with superabrasive grinding wheel and method for manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22865798A JP3962966B2 (en) | 1998-07-28 | 1998-07-28 | Grinding wheel equipped with superabrasive grinding wheel and method for manufacturing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000042930A true JP2000042930A (en) | 2000-02-15 |
| JP3962966B2 JP3962966B2 (en) | 2007-08-22 |
Family
ID=16879777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22865798A Expired - Fee Related JP3962966B2 (en) | 1998-07-28 | 1998-07-28 | Grinding wheel equipped with superabrasive grinding wheel and method for manufacturing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3962966B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008229761A (en) * | 2007-03-19 | 2008-10-02 | Disco Abrasive Syst Ltd | Dry type grinding stone |
| JP2014156004A (en) * | 2013-02-15 | 2014-08-28 | Yamagata Prefecture | Composite plating coat and thin grindstone using the same |
| KR101482785B1 (en) * | 2013-04-10 | 2015-02-03 | 주식회사 태동씨앤에스 | Grinding wheel of polishing apparatus |
| CN107695901A (en) * | 2017-09-21 | 2018-02-16 | 自贡硬质合金有限责任公司 | A kind of composite molding emery wheel |
| CN107984401A (en) * | 2017-12-29 | 2018-05-04 | 华侨大学 | A kind of skive with seedpod of the lotus structure and preparation method thereof |
-
1998
- 1998-07-28 JP JP22865798A patent/JP3962966B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008229761A (en) * | 2007-03-19 | 2008-10-02 | Disco Abrasive Syst Ltd | Dry type grinding stone |
| JP2014156004A (en) * | 2013-02-15 | 2014-08-28 | Yamagata Prefecture | Composite plating coat and thin grindstone using the same |
| KR101482785B1 (en) * | 2013-04-10 | 2015-02-03 | 주식회사 태동씨앤에스 | Grinding wheel of polishing apparatus |
| CN107695901A (en) * | 2017-09-21 | 2018-02-16 | 自贡硬质合金有限责任公司 | A kind of composite molding emery wheel |
| CN107984401A (en) * | 2017-12-29 | 2018-05-04 | 华侨大学 | A kind of skive with seedpod of the lotus structure and preparation method thereof |
| CN107984401B (en) * | 2017-12-29 | 2023-08-29 | 华侨大学 | Diamond grinding wheel with lotus seedpod structure and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3962966B2 (en) | 2007-08-22 |
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