JP3030952B2 - Magnetic polishing method - Google Patents
Magnetic polishing methodInfo
- Publication number
- JP3030952B2 JP3030952B2 JP3200740A JP20074091A JP3030952B2 JP 3030952 B2 JP3030952 B2 JP 3030952B2 JP 3200740 A JP3200740 A JP 3200740A JP 20074091 A JP20074091 A JP 20074091A JP 3030952 B2 JP3030952 B2 JP 3030952B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- polished
- abrasive grains
- polishing
- ferromagnetic particles
- 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.)
- Expired - Fee Related
Links
Landscapes
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明はＮＣ工作機械等に切削工
具の替わりに磁気研磨ツールを取り付け、切削加工等の
形状出し加工後の金型等の仕上げ、自動研磨や、金属
製、セラミックス製等の製品の鏡面研磨、加工変質層除
去研磨等に使用される。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method in which a magnetic polishing tool is mounted on an NC machine tool in place of a cutting tool, and finishing of a mold or the like after shaping processing such as cutting processing, automatic polishing, metal or ceramics. It is used for mirror-polishing of products such as, and polishing for removing affected layers.
【０００２】[0002]
【従来の技術】従来は図２に示すごとく、数１００μｍ
の粒径の強磁性材粒子１の表面に数μｍの酸化アルミニ
ウム等の研磨砥粒２を金属結合状態で付着させ、研磨砥
粒２と強磁性材粒子１が一体となった磁性研磨砥粒とな
っていた。2. Description of the Related Art Conventionally, as shown in FIG.
Magnetic abrasive grains in which the abrasive grains 2 and the ferromagnetic material particles 1 are integrated with the abrasive grains 2 of aluminum oxide or the like having a thickness of several μm adhered to the surface of the ferromagnetic material particles 1 having a particle size of Had become.
【０００３】[0003]
【発明が解決しようとする課題】従来のように、研磨砥
粒２を強磁性材粒子１の表面に、ある厚さで結合させた
磁性研磨砥粒は、図１に示す磁気研磨装置及び、図３に
示す被研磨物周辺の部分拡大図に示すように、磁極６と
被研磨物７間に詰め込まれた場合、表面の酸化アルミニ
ウムは強磁性材でないため、透磁率が鉄の数１０００分
の１と小さく、磁気回路としての磁気抵抗が非常に大き
くなってしまう。そのため、励磁コイルの巻数及びコイ
ルに流す電流が同じでも、磁気回路に発生する磁界の強
さが小さく、しかも表面の酸化アルミニウム等の研磨砥
粒層２の厚さがバラつくと、その厚さに反比例して磁界
の強さが弱くなるため、研磨量の制御が非常に困難で、
しかも、必要な磁界を発生するための励磁コイル４の巻
数及び印加する電流を多く必要としたため、装置が大型
になってしまうといった課題があった。また、同じ装置
の場合は研磨時間が数１０倍かかってしまうといった課
題があった。As in the prior art, the magnetic polishing abrasive grains in which the abrasive grains 2 are bonded to the surface of the ferromagnetic material particles 1 at a certain thickness are composed of a magnetic polishing apparatus shown in FIG. As shown in the partial enlarged view around the object to be polished shown in FIG. 3, when the magnetic material is packed between the magnetic pole 6 and the object to be polished 7, the aluminum oxide on the surface is not a ferromagnetic material, so that the magnetic permeability is several thousand minutes of iron. Therefore, the magnetic resistance of the magnetic circuit becomes very large. Therefore, even if the number of turns of the exciting coil and the current flowing through the coil are the same, if the strength of the magnetic field generated in the magnetic circuit is small and the thickness of the polishing abrasive grain layer 2 of aluminum oxide or the like on the surface varies, the thickness becomes large. Since the strength of the magnetic field weakens in inverse proportion to, it is very difficult to control the amount of polishing,
Moreover, since the number of turns of the exciting coil 4 and the applied current for generating the required magnetic field are required to be large, there is a problem that the device becomes large. Further, in the case of the same apparatus, there is a problem that the polishing time is several tens times.
【０００４】[0004]
【課題を解決するための手段】前記課題を解決するため
に、本発明の磁気研磨方法は、ヨーク、励磁コイル、電
源、被研磨物と対面する磁極、強磁性体粒子、常温では
固体の油脂で固められた研磨砥粒より構成され、励磁コ
イルに電圧を印加し、被研磨物と対面する磁極間に磁界
を発生させながら、被研磨物と磁極を相対的に回転ある
いは揺動させる磁気研磨方法において、常温では固体の
油脂で強磁性体粒子と混合した研磨砥粒を、強磁性体粒
子と別々に磁極と被研磨物との間に充填するか、または
強磁性体粒子、研磨砥粒、および前記油脂を混合し、磁
極と被研磨物との間隙に充填または補給したことを特徴
とする。In order to solve the above problems SUMMARY OF THE INVENTION The magnetic polishing method of the present invention, the yoke, the exciting coil, power supply, magnetic poles facing the object to be polished, ferromagnetic particles, at room temperature
It consists of abrasive grains solidified with solid oils and fats.Applying a voltage to the excitation coil to generate a magnetic field between the magnetic poles facing the workpiece and rotate or swing the workpiece and the magnetic pole relatively. In the magnetic polishing method, the solid
Abrasive grains mixed with ferromagnetic particles with oils and fats
Between the magnetic pole and the object to be polished separately from the probe, or
Mix ferromagnetic particles, abrasive grains, and the fat and oil
It is characterized by filling or replenishing the gap between the pole and the workpiece
And
【０００５】[0005]
【作用】このように、強磁性体でない研磨砥粒２で覆わ
れた磁性研磨砥粒の替わりに、強磁性体粒子と研磨力の
ある粒子を分け、しかもそれを油性ワックス等で保持さ
せることにより、鉄またはニッケル系の強磁性体粒子８
どうしが接触するため、酸化アルミニウム等の非磁性材
料でできた研磨砥粒２が間に入らず、磁気回路に発生す
る磁界の強さを従来の数倍から数十倍に高めることがで
きる。As described above, instead of the magnetic abrasive grains covered with the abrasive grains 2 which are not ferromagnetic, the ferromagnetic particles and the abrasive particles are separated and held by an oil wax or the like. The iron or nickel-based ferromagnetic particles 8
Non-magnetic materials such as aluminum oxide because they come into contact with each other
The abrasive grains 2 made of the material do not intervene, and the intensity of the magnetic field generated in the magnetic circuit can be increased several times to several tens times as compared with the related art.
【０００６】以下に、磁気回路にはたらく磁気抵抗の大
きさを、従来の、磁性材料の外周部を非磁性の研磨砥粒
２で覆った磁性研磨材と、本発明の強磁性体粒子８のみ
の場合を比較し、磁気回路に働く磁界の強さの違いを説
明をする。The magnitude of the magnetic resistance acting on the magnetic circuit will be described below by using only a conventional magnetic abrasive in which the outer periphery of a magnetic material is covered with nonmagnetic abrasive grains 2, and only the ferromagnetic particles 8 of the present invention. The difference in the strength of the magnetic field acting on the magnetic circuit will be described by comparing the case of FIG.
【０００７】図７のように磁性研磨材１が磁極６と被研
磨物７の間に１列に並んでいる場合で考えると、磁性研
磨材１の粒径を立方体で仮定し、一辺の長さを ａ、研
磨砥粒２の膜厚を ｂ、磁極６と被研磨物７の間隙を
Ｇ、とすると、間隙 Ｇの間に磁性研磨材１は Ｇ／ａ
個、直列に並ぶ。研磨砥粒２は強磁性体ではないから透
磁率は小さく、空隙部と考えても差し支えない。Assuming that the magnetic abrasives 1 are arranged in a line between the magnetic pole 6 and the workpiece 7 as shown in FIG. 7, the particle size of the magnetic abrasive 1 is assumed to be a cube, and the length of one side is assumed. A, the thickness of the abrasive grains 2 b, and the gap between the magnetic pole 6 and the workpiece 7
G, the magnetic abrasive 1 is G / a between the gaps G.
Pieces are arranged in series. Since the abrasive grains 2 are not ferromagnetic, they have low magnetic permeability and may be considered as voids.
【０００８】研磨砥粒部の、磁束の流れる方向１５の長
さの総和を Ｌbとすると Ｌb ＝２ｂ・Ｇ／ａ これに対し、強磁性材部１の長さの総和 Ｌa は Ｌa ＝（ａ−２ｂ）・Ｇ／ａ となり、強磁性体粒子１の透磁率を μa、非磁性体の研
磨砥粒２の透磁率を μb、強磁性体粒子１の磁界と垂直
な断面積を Ｓ＝ａ2とすると、非磁性材の透磁率μb
は μb＝μa／１０００ 程度であるから、Ｇ の間の磁気抵抗 Ｒは Ｒ＝Ｌa／μa・Ｓ＋Ｌb／μb・Ｓ ＝（ａ＋１９９８ｂ）・Ｇ／μa・ａ3 となる。ここでａ＝２００μｍ、ｂ＝５μｍ程度である
から上式（ ）内のａに対し１９９８ｂの大きさは、約
５０倍と、磁気抵抗に及ぼす磁性研磨材の酸化アルミニ
ウム等の非磁性研磨砥粒２の大きさの要因が非常に大き
いことがわかる。すなわち表面を酸化アルミニウム等の
非磁性研磨砥粒２で覆われた磁性研磨材１を磁気研磨に
使った場合と、強磁性体粒子８と研磨砥粒９を分けた場
合では磁気回路に発生する磁界の強さが数１０倍違うこ
とがわかる。Assuming that the sum of the lengths of the abrasive grains in the direction 15 in which the magnetic flux flows is Lb, Lb = 2b · G / a. On the other hand, the sum La of the lengths of the ferromagnetic material portions 1 is La = (a −2b) · G / a, where the magnetic permeability of the ferromagnetic particles 1 is μa, the magnetic permeability of the non-magnetic abrasive grains 2 is μb, and the cross-sectional area perpendicular to the magnetic field of the ferromagnetic particles 1 is S = a. If 2 , the magnetic permeability of the non-magnetic material μb
Is approximately μb = μa / 1000, and the magnetic resistance R between G is R = La / μa · S + Lb / μb · S = (a + 1998b) · G / μa · a 3 . Here, since a = 200 μm and b = 5 μm, the size of 1998b is about 50 times as large as a in the above formula (), and the non-magnetic abrasive grains such as aluminum oxide of a magnetic abrasive that affects the magnetic resistance It can be seen that the factor of size 2 is very large. That is, when the magnetic abrasive 1 whose surface is covered with non-magnetic abrasive grains 2 such as aluminum oxide is used for magnetic polishing, and when the ferromagnetic particles 8 and the abrasive abrasive grains 9 are separated, a magnetic circuit is generated. It can be seen that the strength of the magnetic field differs by several tens of times.
【０００９】[0009]
【実施例】以下に、実施例に基づいて説明する。Embodiments will be described below based on embodiments.
【００１０】図３は、円筒状の被研磨物７の周囲にパラ
フィン系の常温で固体状のワックス１０で覆われた研磨
砥粒９を塗り付け、フェライト製の粒径１００μｍ〜５
００μｍの強磁性体粒子８を磁極６と被研磨物７の間隙
３mmの間に充填させ、ヨーク３に磁界をかけて、被研磨
物７を回転及び軸方向に揺動させた磁気研磨方法であ
る。[0010] Figure 3 is para to the periphery of the cylindrical workpiece 7
Abrasive abrasive grains 9 covered with solid wax 10 at room temperature of a fin system are applied and ferrite particles having a particle size of 100 μm to 5 μm.
A magnetic polishing method in which a ferromagnetic particle 8 of 00 μm is filled in a gap of 3 mm between the magnetic pole 6 and the object 7 to be polished, and a magnetic field is applied to the yoke 3 to rotate and oscillate the object 7 to be polished in the axial direction. is there.
【００１１】この場合、最初は、研磨砥粒９とパラフィ
ン系ワックス１０が被研磨物７の上を覆っているだけで
全く研磨されないが、被研磨物７の回転と揺動による摩
擦熱でパラフィンが溶け、研磨砥粒９が強磁性体粒子８
の外周部に付着し出して被研磨物７の表面の研磨を開始
する。研磨砥粒９の被研磨物７に押し付けられる応力
は、磁気回路に発生する磁界の強さに比例し、従来の、
表面を研磨砥粒２で覆われた磁性研磨材１、を使用した
場合と比べ数十倍の力を発生し、研磨力が飛躍的に増大
する。In this case, at first, the abrasive grains 9 and the paraffin-based wax 10 only cover the workpiece 7 and are not polished at all. Melts and the abrasive grains 9 become ferromagnetic particles 8
And starts polishing the surface of the object 7 to be polished. The stress of the abrasive grains 9 pressed against the workpiece 7 is proportional to the strength of the magnetic field generated in the magnetic circuit.
As compared with the case where the magnetic abrasive 1 whose surface is covered with the abrasive grains 2, a force several tens of times higher is generated, and the polishing power is greatly increased.
【００１２】図４は、同様に、円筒物の研磨においてパ
ラフィン系ワックス１０、５μｍ〜１０μｍの粒子径の
研磨砥粒９、及び、１００μｍ〜５００μｍの粒子径の
強磁性体粒子８を混合した研磨材を、磁極６と被研磨物
７の間隙に充填させて、被研磨物７を揺動及び回転させ
た例である。この場合も、摩擦熱でパラフィン系ワック
ス１０が溶けることにより、強磁性体粒子８が磁極６と
被研磨物７との間に磁気的な間隙を作らず密着して磁力
線に沿って直列に並ぶため、磁気回路に非常に大きな磁
界を発生し、図３と同様の効果を出す。FIG. 4 is a view showing a mixture obtained by mixing a paraffin-based wax 10, abrasive grains 9 having a particle diameter of 5 μm to 10 μm, and ferromagnetic particles 8 having a particle diameter of 100 μm to 500 μm. This is an example in which a material is filled in the gap between the magnetic pole 6 and the object 7 to be polished, and the object 7 is oscillated and rotated. Again, by paraffin wax 10 melts by the frictional heat, ferromagnetic particles 8 in close contact without creating magnetic gap between the pole 6 and the object to be polished 7 force
Since they are arranged in series along the line, a very large magnetic field is generated in the magnetic circuit, and the same effect as in FIG. 3 is obtained.
【００１３】図５は、凹凸のある被研磨物１１の表面
に、あらかじめパラフィン系のワックス１０で固めた研
磨砥粒９を塗布しておき、回転及び揺動する磁極１２と
被研磨物１１との間に磁界をかけ、５ｍｍの間隙に１０
０μｍ〜５００μｍの粒径の強磁性体粒子８を充填さ
せ、金型等の凹凸の有る被研磨物１１を研磨した例であ
る。この場合は、ＮＣフライス等で形状を作った後、同
じ加工機を使って、先端のエンドミルに替えて磁気研磨
用磁極を装填し、引き続き金型研磨を同じＮＣソフトを
使って行うことも出来る。また、仕上げのレベルに応じ
て研磨材の種類を、研削力のあるものから、研削力はや
や落ちるが鏡面つや出しが可能なものへ替えることによ
り、同じ加工機で連続して鏡面仕上げまで可能となっ
た。FIG. 5 shows that the abrasive grains 9, which have been previously hardened with paraffin wax 10, are applied to the surface of the polished object 11 having irregularities, and the rotating and oscillating magnetic pole 12 and the polished object 11 are coated. Between the 5mm gap
This is an example in which ferromagnetic particles 8 having a particle size of 0 μm to 500 μm are filled, and an object to be polished 11 having irregularities such as a mold is polished. In this case, after forming the shape with an NC milling machine or the like, using the same processing machine, the magnetic pole for magnetic polishing can be loaded instead of the end mill at the tip, and the mold polishing can be subsequently performed using the same NC software. . In addition, by changing the type of abrasive from one with grinding power to one with a slightly reduced grinding power but capable of mirror polishing according to the level of finishing, it is possible to continuously perform mirror finishing with the same processing machine. became.
【００１４】図６は、パラフィン系ワックス１０で固め
た研磨砥粒９をあらかじめ塗布した平板状被研磨物１３
を、２個の向かい合った磁極６の間に、左右等間隔の、
１ｍｍ〜３ｍｍの間隙をもたせセットし、その間隙に２
００μｍ〜３００μｍの粒径の強磁性体粒子８を充填さ
せ、磁極６間に磁界をかけ被研磨物１３を上下左右に摺
動させて研磨した例である。この場合も前記の例と同様
に、研磨のレベルに合わせた研磨砥粒を選択することが
できる。FIG. 6 is a plan view showing a plate-like object 13 to which polishing abrasive grains 9 hardened with a paraffin wax 10 are applied in advance.
Between two opposing magnetic poles 6 at equal intervals on the left and right,
Set with a gap of 1 mm to 3 mm, and
This is an example in which ferromagnetic particles 8 having a particle size of 00 μm to 300 μm are filled, and a magnetic field is applied between the magnetic poles 6 so that the object 13 is slid up, down, left and right. In this case as well, similarly to the above-described example, it is possible to select the abrasive grains according to the polishing level.
【００１５】[0015]
【発明の効果】以上の実施例からわかるように、本発明
は磁気研磨装置の磁気回路を全て強磁性材料にて構成す
ることにより、磁気回路に発生する磁界が従来の数１０
倍と大きくなるため、励磁コイルの巻数を少なくでき、
印加する電流を少なくできる。これにより、従来、数１
０Ｋｇの銅線で励磁コイルを構成しなければならなかっ
たのが、数Ｋｇで済み研磨装置の小型化が計れた。ま
た、従来は研磨砥粒層の厚さのばらつきにより研磨量の
制御が困難であり均一な研磨ができにくかったが、本発
明は強磁性体粒子と研磨砥粒を別体にしたことにより、
磁気回路に発生する磁界が安定するため、制御が容易に
なり、均一な研磨が可能となった。また、磁極と被研磨
物との間隙が大きくても磁気回路に生ずる磁界は従来ほ
ど変化しないため、凹凸の有る物の研磨も、均一な研磨
面を得ることができる。又、強磁性体粒子と研磨砥粒を
別体にしたことにより、従来は時間の経過で研磨能力が
劣化した時、磁性研磨材を全て交換しなければならなか
ったが、本発明の方法によれば、ワックスと混合した研
磨砥粒または研磨砥粒のみを加工中に補給することがで
きるため、時間の経過によって研磨量が低下することが
なく、しかも、切削加工から研磨まで被研磨物を機械か
ら着脱することなくできるため、加工時間の短縮が計れ
た。以上、本発明は優れた効果を有するものである。As can be seen from the above embodiments, according to the present invention, since the magnetic circuit of the magnetic polishing apparatus is entirely made of a ferromagnetic material, the magnetic field generated in the magnetic circuit is several tens of the conventional magnetic circuit.
Because it is twice as large, the number of turns of the exciting coil can be reduced,
The applied current can be reduced. As a result, conventionally, Equation 1
The excitation coil had to be composed of 0 Kg of copper wire, but was reduced to several Kg, and the size of the polishing apparatus was reduced. In addition, conventionally, it was difficult to control the amount of polishing due to the variation in the thickness of the polishing abrasive layer, and it was difficult to perform uniform polishing.However, the present invention separates the ferromagnetic particles and the polishing abrasive particles,
Since the magnetic field generated in the magnetic circuit is stabilized, control is facilitated, and uniform polishing is possible. Further, even if the gap between the magnetic pole and the object to be polished is large, the magnetic field generated in the magnetic circuit does not change as much as in the past, so that a uniform polished surface can be obtained when polishing an object having irregularities. In addition, by separating the ferromagnetic particles and the abrasive grains separately, conventionally, when the polishing ability deteriorated with the passage of time, all the magnetic abrasives had to be replaced. According to this, since the polishing abrasive grains mixed with the wax or only the polishing abrasive grains can be replenished during the processing, the polishing amount does not decrease over time, and moreover, the object to be polished from the cutting processing to the polishing can be removed. Since it can be done without removing it from the machine, the processing time was reduced. As described above, the present invention has excellent effects.
【図１】本発明の磁気研磨方法の代表的な装置の全体側
面図。FIG. 1 is an overall side view of a typical apparatus of a magnetic polishing method according to the present invention.
【図２】従来の磁気研磨方法で使用した磁性研磨材粒子
の断面図。FIG. 2 is a cross-sectional view of magnetic abrasive particles used in a conventional magnetic polishing method.
【図３】本発明の磁気研磨方法の図１に示す装置の研磨
部分の拡大側面図で、ワックスで固めた研磨砥粒を、被
研磨物に塗布した場合の図。FIG. 3 is an enlarged side view of a polishing portion of the apparatus shown in FIG. 1 in the magnetic polishing method of the present invention, in which polishing abrasive grains hardened with wax are applied to a workpiece.
【図４】本発明の磁気研磨方法の、強磁性体粒子をワッ
クス及び研磨砥粒と混合し、円筒を研磨している部分拡
大斜視図。FIG. 4 is a partially enlarged perspective view of the magnetic polishing method of the present invention, in which ferromagnetic particles are mixed with wax and abrasive grains to polish a cylinder.
【図５】本発明の磁気研磨方法で凹凸の有る金型等に、
ワックスで固めた研磨砥粒を塗布し、強磁性体粒子で研
磨している部分拡大斜視図。FIG. 5 is a view showing a method for forming a metal mold having irregularities by the magnetic polishing method of the present invention.
FIG. 4 is a partially enlarged perspective view in which abrasive grains hardened with wax are applied and polished with ferromagnetic particles.
【図６】本発明の磁気研磨方法の、平板両面研磨の部分
拡大斜視図。FIG. 6 is a partially enlarged perspective view of flat-plate double-side polishing in the magnetic polishing method of the present invention.
【図７】本発明の磁気研磨方法の磁界の強さを説明する
磁極と被研磨物間の従来方法の部分拡大断面図。FIG. 7 is a partially enlarged cross-sectional view of a conventional method between a magnetic pole and an object to be polished for explaining the strength of a magnetic field in the magnetic polishing method of the present invention.
１．磁性研磨材の強磁性体粒子 ２．強磁性体粒子と金属結合した研磨砥粒 ３．ヨーク ４．励磁コイル ５．電源 ６．磁極 ７．円筒状被研磨物 ８．フェライトまたはパーマロイ等の強磁性体粒子 ９．研磨砥粒 １０．油性またはパラフィン系ワックス １１．凹凸のある被研磨物 １２．回転する磁極 １３．平板状被研磨物 １４．被研磨物の回転または揺動方向 １５．磁界の方向 ａ．磁性研磨材の粒径 ｂ．研磨砥粒の粒径 Ｇ．磁極と被研磨物の間隙 1. 1. Ferromagnetic particles of magnetic abrasive 2. Abrasive grains metal-bonded to ferromagnetic particles York 4. Excitation coil 5. Power supply 6. Magnetic pole 7. 7. Cylindrical object to be polished 8. Ferromagnetic particles such as ferrite or permalloy Polishing abrasive grains 10. 10. Oily or paraffinic wax Polished object with irregularities Rotating magnetic pole 13. Flat object to be polished 14. 14. Rotation or swing direction of the object to be polished Magnetic field direction a. Particle size of magnetic abrasive b. G. Particle size of abrasive grains Gap between magnetic pole and workpiece
Claims (3)
面する磁極、強磁性体粒子、常温では固体の油脂で固め
られた研磨砥粒より構成され、励磁コイルに電圧を印加
し、被研磨物と対面する磁極間に磁界を発生させなが
ら、被研磨物と磁極を相対的に回転あるいは揺動させる
磁気研磨方法において、被研磨物表面に前記油脂で固め
た研磨砥粒を塗布し、強磁性体粒子を研磨砥粒と別々に
磁極と被研磨物との間隙に充填したことを特徴とする磁
気研磨方法。1. A yoke, an excitation coil, a power supply, a magnetic pole facing a workpiece to be polished, ferromagnetic particles, and polishing abrasive grains solidified with a fat or oil at room temperature. While generating a magnetic field between the magnetic poles facing the polished object, in the magnetic polishing method of relatively rotating or swinging the magnetic pole and the object to be polished, apply the abrasive grains solidified with the oil and fat on the surface of the object to be polished, A magnetic polishing method characterized in that ferromagnetic particles are separately filled with abrasive grains into a gap between a magnetic pole and an object to be polished.
面する磁極、強磁性体粒子、常温では固体の油脂で固め
られた研磨砥粒より構成され、励磁コイルに電圧を印加
し、被研磨物と対面する磁極間に磁界を発生させなが
ら、被研磨物と磁極を相対的に回転あるいは揺動させる
磁気研磨方法において、強磁性体粒子、研磨砥粒、およ
び前記油脂を混合し、磁極と被研磨物との間隙に充填し
たことを特徴とする磁気研磨方法。2. A pair of a yoke, an exciting coil, a power supply, and an object to be polished.
Faced magnetic poles, ferromagnetic particles, solidified at room temperature with solid fat
A voltage is applied to the excitation coil
While generating a magnetic field between the magnetic poles facing the workpiece.
Then, rotate or swing the workpiece and the magnetic pole relatively.
A magnetic polishing method comprising mixing ferromagnetic particles, abrasive grains, and the oil and fat, and filling the mixture between a magnetic pole and an object to be polished.
いて、前記研磨砥粒と前記油脂の少なくともどちらか一
方を研磨途中に磁極と被研磨物との間隙に補給したこと
を特徴とする請求項１又は２に記載の磁気研磨方法。3. The magnetic polishing method according to claim 1, wherein
And at least one of the abrasive grains and the fat or oil.
The magnetic polishing method according to claim 1 or 2, wherein the other is supplied to a gap between the magnetic pole and the object to be polished during polishing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3200740A JP3030952B2 (en) | 1991-08-09 | 1991-08-09 | Magnetic polishing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3200740A JP3030952B2 (en) | 1991-08-09 | 1991-08-09 | Magnetic polishing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0542476A JPH0542476A (en) | 1993-02-23 |
| JP3030952B2 true JP3030952B2 (en) | 2000-04-10 |
Family
ID=16429383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3200740A Expired - Fee Related JP3030952B2 (en) | 1991-08-09 | 1991-08-09 | Magnetic polishing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3030952B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2732215B2 (en) * | 1994-02-22 | 1998-03-25 | 鈴木 清 | Magnetic polishing of non-magnetic materials |
-
1991
- 1991-08-09 JP JP3200740A patent/JP3030952B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0542476A (en) | 1993-02-23 |
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