EP0773088B1 - Hone and manufacturing of the same - Google Patents

Hone and manufacturing of the same Download PDF

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Publication number
EP0773088B1
EP0773088B1 EP96402229A EP96402229A EP0773088B1 EP 0773088 B1 EP0773088 B1 EP 0773088B1 EP 96402229 A EP96402229 A EP 96402229A EP 96402229 A EP96402229 A EP 96402229A EP 0773088 B1 EP0773088 B1 EP 0773088B1
Authority
EP
European Patent Office
Prior art keywords
particles
lapping tool
thermosetting resin
matrix
tool according
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 - Lifetime
Application number
EP96402229A
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German (de)
French (fr)
Other versions
EP0773088A1 (en
Inventor
Georges Henri Les Terrasses de Genève Broido
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dite Lam-Plan Sa Ste
DITE Ste
Original Assignee
Dite Lam-Plan Sa Ste
DITE Ste
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Publication of EP0773088A1 publication Critical patent/EP0773088A1/en
Application granted granted Critical
Publication of EP0773088B1 publication Critical patent/EP0773088B1/en
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
    • B24D5/14—Zonally-graded wheels; Composite wheels comprising different abrasives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
    • B24D18/0009—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for using moulds or presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
    • B24D7/14—Zonally-graded wheels; Composite wheels comprising different abrasives

Definitions

  • the invention overcomes these drawbacks with a lapping machine easier to manufacture and which can be made in even very small dimensions.
  • one of the material is in the form of particle size between 0.2 and 10 mm and preferably between 0.2 and 3 mm randomly distributed in a matrix comprising the other matter.
  • a distribution is thus obtained, sufficient for desired lapping purposes, particles in the matrix simply by mixing operations, without having to store the islands in a precise and orderly manner, necessarily expensive and tedious.
  • the matrix may consist of a binder based on a thermosetting resin, but preferably it consists of a metallic material coated with this binder.
  • the metallic material represents from 20 to 90% and preferably from 50 to 65% of the weight of the matrix.
  • Particles are made of a material metallic coated with binder in thermosetting resin.
  • the metallic material represents from 20 to 90%, and preferably 50 to 65% of the weight of the particles.
  • the particles represent from 2 to 40%, and preferably from 3 to 20% of the weight of the lapping.
  • the hardness differences between the matrix and the grains can vary from 0 to 10 Shore D with deviations preferential lower than 5 Shore D.
  • the chromium As hardness-imparting material, use the chromium, the iron, stainless steel, cast iron, nickel, copper, titanium oxide, zinc, antimony, aluminum, tin, lead.
  • thermosetting resin serving as a binder can use in particular a polyester resin, a resin epoxy, a polyurethane resin.
  • the matrix binder can be identical to that of particles or be different.
  • the particle size preferably between 0.2 and 3 mm, it is possible prepare leaves in the first mixture of a thickness between 0.2 and 1 mm so that these leaves can break easily when folded, then fold these sheets in order to obtain fragments which are then crushed to obtain the particle size required.
  • the catalysts are used usual, especially peroxides such as peroxide of methyl ethyl ketone.
  • Figure 1 shows a lapping according to the invention comprising particles 1 in a matrix 2.
  • the same proportions i.e. 100 g of resin, 65 of hardener, 160 g of iron powder and 33 g of made grains previously.
  • MATRIX 100 g of resin, 2 g of accelerator, 200 g iron powder, 20 g of polyester grains based on stainless steel,
  • GRAINS 100 g of resin, 2 g of accelerator and 200 g stainless steel powder.
  • the whole is mixed for 30 seconds, the previously prepared grains of so that they represent 10% of the whole weight, then we mix about thirty seconds.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Prostheses (AREA)

Abstract

The grinding wheel is made from particles of one material, with a grain size of 0.2-10 mm and, preferably, 0.2-3 mm, distributed randomly in a matrix of a second material. This second material is a thermosetting resin or a metal coated with a binding agent based on a thermo-setting resin. The particles forming the first material of the grinding wheel can be of a metal coated with a thermosetting resin binding agent, with the metal comprising 20-90 per cent, and preferably 50-65 per cent of the weight of the particles. The particles themselves represent between 2 and 40 per cent, and preferably 3-20 per cent of the weight of the grinding wheel. The metal can be, for example, chrome, iron, stainless steel, nickel, copper, titanium oxide, zinc, antimony, aluminium, tin or lead, and the thermosetting resin in the binding agent can be a polyester, epoxy or polyurethane resin.

Description

On connaít déjà un rodoir comprenant deux matières non abrasives de dureté différente sous la forme d'ílots disséminés dans une matrice.We already know a lapping comprising two materials non-abrasive of different hardness in the form of islands scattered in a matrix.

La fabrication de ces rodoirs est compliquée car elle suppose la fabrication préalable des ílots et leur mise en place dans la matrice, cette dernière opération ne pouvant même pas être effectuée lorsque le rodoir a de très petites dimensions.The production of these laps is complicated because it presupposes the prior manufacture of the islets and their placement in the matrix, this last operation cannot even be carried out when the lapping has very small dimensions.

L'invention pallie ces inconvénients par un rodoir plus facile à fabriquer et qui peut l'être en des dimensions même très petites.The invention overcomes these drawbacks with a lapping machine easier to manufacture and which can be made in even very small dimensions.

Dans le rodoir suivant l'invention, qui est définie dans la revendication 1, l'une des matières est sous forme de particules de granulométrie comprise entre 0,2 et 10 mm et, de préférence, entre 0,2 et 3 mm réparties au hasard dans une matrice comprenant l'autre matière.In the lap according to the invention, which is defined in claim 1, one of the material is in the form of particle size between 0.2 and 10 mm and preferably between 0.2 and 3 mm randomly distributed in a matrix comprising the other matter.

On obtient ainsi une répartition, suffisante aux fins souhaitées de rodage, des particules dans la matrice simplement par des opérations de mélange, sans avoir à ranger les ílots d'une manière précise et ordonnée, nécessairement coûteuse et fastidieuse.A distribution is thus obtained, sufficient for desired lapping purposes, particles in the matrix simply by mixing operations, without having to store the islands in a precise and orderly manner, necessarily expensive and tedious.

La matrice peut consister en un liant à base d'une résine thermodurcissable, mais, de préférence, elle consiste en un matériau métallique enrobé de ce liant. Dans ce cas, le matériau métallique représente de 20 à 90 % et de préférence de 50 à 65 % du poids de la matrice. Les particules sont constituées d'un matériau métallique enrobé de liant en résine thermodurcissable. Le matériau métallique représente de 20 à 90 %, et de préférence de 50 à 65 % du poids des particules. Les particules représentent de 2 à 40 %, et de préférence de 3 à 20 % du poids du rodoir.The matrix may consist of a binder based on a thermosetting resin, but preferably it consists of a metallic material coated with this binder. In this case, the metallic material represents from 20 to 90% and preferably from 50 to 65% of the weight of the matrix. Particles are made of a material metallic coated with binder in thermosetting resin. The metallic material represents from 20 to 90%, and preferably 50 to 65% of the weight of the particles. The particles represent from 2 to 40%, and preferably from 3 to 20% of the weight of the lapping.

Les écarts de dureté entre la matrice et les grains peuvent varier de 0 à 10 Shore D avec des écarts préférentiels inférieurs à 5 Shore D.The hardness differences between the matrix and the grains can vary from 0 to 10 Shore D with deviations preferential lower than 5 Shore D.

Comme matériau conférant de la dureté, on peut utiliser par ordre décroissant de dureté le chrome, le fer, l'acier inoxydable, la fonte, le nickel, le cuivre, l'oxyde de titane, le zinc, l'antimoine, l'aluminium, l'étain, le plomb. On peut notamment utiliser les associations suivantes : fer - cuivre, fer - aluminium, fer - acier inoxydable, cuivre - étain, étain - plomb, cuivre - acier inoxydable, acier inoxydable - aluminium, zinc - aluminium, cuivre - cuivre plus étain, etc ...As hardness-imparting material, use the chromium, the iron, stainless steel, cast iron, nickel, copper, titanium oxide, zinc, antimony, aluminum, tin, lead. We can in particular use the following associations: iron - copper, iron - aluminum, iron - stainless steel, copper - tin, tin - lead, copper - stainless steel, stainless steel - aluminum, zinc - aluminum, copper - copper plus tin, etc ...

Comme résine thermodurcissable servant de liant, on peut utiliser notamment une résine polyester, une résine époxy, une résine polyuréthanne. Le liant de la matrice peut être identique à celui des particules ou en être différent.As a thermosetting resin serving as a binder, can use in particular a polyester resin, a resin epoxy, a polyurethane resin. The matrix binder can be identical to that of particles or be different.

Le procédé de fabrication d'un rodoir selon l'invention est défini par la revendication 8. The manufacturing process of a lapping machine according to the invention is defined by claim 8.

Pour préparer les particules de granulométrie comprise de préférence entre 0,2 et 3 mm, on peut préparer des feuilles en le premier mélange d'une épaisseur comprise entre 0,2 et 1 mm afin que ces feuilles puissent se casser aisément lorsqu'on les plie, puis plier ces feuilles de manière à obtenir des fragments que l'on broie ensuite pour obtenir les particules de granulométrie requise.To prepare the particle size preferably between 0.2 and 3 mm, it is possible prepare leaves in the first mixture of a thickness between 0.2 and 1 mm so that these leaves can break easily when folded, then fold these sheets in order to obtain fragments which are then crushed to obtain the particle size required.

Comme catalyseur, on utilise les catalyseurs habituels, notamment les peroxydes tels que le peroxyde de méthyléthylcétone.As catalyst, the catalysts are used usual, especially peroxides such as peroxide of methyl ethyl ketone.

Les exemples suivants illustrent l'invention.The following examples illustrate the invention.

Exemple no.1Example no.1

On met 100 grammes de résine de polyester Synolite 3780 du groupe Vaissière Favre S.A. 11, Rue de Bordeaux Port Edouard Herriot, Lyon dans un récipient en même temps que 2 grammes d'octoate de cobalt servant d'accélérateur. On mélange. On verse 200 grammes de poudre de cuivre d'une granulométrie comprise entre 50 et 150 microns dans le mélange de résine et d'accélérateur. On ajoute 2 grammes de peroxyde de méthyléthylcétone servant de catalyseur et l'on mélange pendant quatre minutes. On étale le mélange sur un plan et on laisse sécher pendant 24 heures. On découpe la feuille de résine obtenue en carrés de 10 cm de côté, on met une vingtaine de ces carrés dans un broyeur (Moulinex, type 094 260 W), puis on les broie pendant 30 secondes environ. On tamise pour recueillir les grains dont la granulométrie est inférieure à 1 mm.We put 100 grams of polyester resin Synolite 3780 of the Vaissière Favre S.A. group 11, Rue de Bordeaux Port Edouard Herriot, Lyon in one container time as 2 grams of cobalt octoate serving accelerator. We blend. We pour 200 grams of copper powder with a particle size between 50 and 150 microns in the resin and accelerator mixture. 2 grams of methyl ethyl ketone peroxide are added serving as a catalyst and mixing for four minutes. We spread the mixture on a plane and let dry for 24 hours. We cut the resin sheet obtained in squares of 10 cm side, we put twenty of these squares in a grinder (Moulinex, type 094 260 W), then they are ground for about 30 seconds. We sift to collect the grains whose particle size is less than 1 mm.

On mélange 100 grammes de la même résine que ci-dessus à 200 grammes de poudre de fer en procédant comme ci-dessus avec addition comme indiqué ci-dessus d'un accélérateur. On ajoute au mélange de résine et d'accélérateur les particules préparées précédemment de manière qu'elles représentent 10 % de l'ensemble en poids, puis on ajoute rapidement 2 grammes du même catalyseur que mentionné ci-dessus et l'on verse le tout dans un moule dont l'empreinte à la forme de rodoir. Après deux heures de polymérisation, on retire les rodoirs du moule.100 grams of the same resin as above are mixed to 200 grams of iron powder by proceeding as above with addition as indicated above of a accelerator. Add to the resin mixture and accelerator the previously prepared particles of so that they represent 10% of the whole weight, then quickly add 2 grams of the same catalyst as mentioned above and we pour the whole thing in a mold whose imprint has the shape of a lapping. After two hours of polymerization, the mold laps.

La figure 1 représente un rodoir suivant l'invention comprenant des particules 1 dans une matrice 2.Figure 1 shows a lapping according to the invention comprising particles 1 in a matrix 2.

Exemple no.2Example no.2

Fabrication d'un rodoir en utilisant un liant, aussi bien pour la matrice que pour les grains, à base de polyuréthanne.Making a lapping machine using a binder, too both for the matrix and for the grains, based on polyurethane.

On mélange pour la fabrication des grains de 100 g de résine à 65 g de durcisseur et 160 g de poudre de cuivre.Mix for the production of 100 g grains of resin to 65 g of hardener and 160 g of powder copper.

Pour la fabrication de la matrice, on utilise les mêmes proportions soit 100 g de résine, 65 de durcisseur, 160 g de poudre de fer et 33 g de grains fabriqués précédemment.For the manufacture of the matrix, the same proportions, i.e. 100 g of resin, 65 of hardener, 160 g of iron powder and 33 g of made grains previously.

Exemple no.3Example no.3

On a préalablement fabriqué des grains à base de polyester dans les mêmes proportions que l'exemple no. 2 et ces grains, après être broyés et calibrés, sont introduits dans une matrice à base de polyuréthanne. La fabrication de cette matrice se fait de la manière suivante: 100 g de résine, 2 g d'accélérateur, 200 g de poudre de fer et 20 g de grains à base de polyuréthanne.We have previously made grains from polyester in the same proportions as example no. 2 and these grains, after being ground and graded, are introduced into a polyurethane-based matrix. The manufacturing of this matrix is done in the way next: 100 g of resin, 2 g of accelerator, 200 g of iron powder and 20 g of polyurethane-based grains.

Exemple no.4Example no.4

Fabrication de rodoirs où la matrice et les grains sont à base de polyester avec une poudre fer dans la matrice et dans les grains une poudre d'inox.Manufacture of lappers where the matrix and the grains are polyester based with an iron powder in the matrix and in the grains a powder of stainless steel.

MATRICE: 100 g de résine, 2 g d'accélérateur, 200 g de poudre de fer, 20 g de grains polyester à base d'inox,MATRIX: 100 g of resin, 2 g of accelerator, 200 g iron powder, 20 g of polyester grains based on stainless steel,

GRAINS: 100 g de résine, 2 g d'accélérateur et 200 g de poudre d'inox. GRAINS: 100 g of resin, 2 g of accelerator and 200 g stainless steel powder.

Exemple no.5Example no.5

Introduction du catalyseur avant l'introduction des grains dans la résine de la matrice. On effectue le mélange de la fabrication des grains comme à l'exemple no. 1. Lorsque ces grains ont été broyés et calibrés, on effectue l'opération suivante: 100 g de résine, 2 g d'accélérateur, 200 g de poudre de fer.Introduction of the catalyst before the introduction of grains in the matrix resin. We do the mixture of grain making as in the example no. 1. When these grains have been ground and graded, performs the following operation: 100 g of resin, 2 g accelerator, 200 g of iron powder.

On procède au mélange de l'ensemble pendant 30 secondes, on ajoute les grains préalablement préparés de manière à ce qu'ils représentent 10% de l'ensemble du poids, puis on mélange une trentaine de secondes.The whole is mixed for 30 seconds, the previously prepared grains of so that they represent 10% of the whole weight, then we mix about thirty seconds.

Claims (10)

  1. Lapping tool comprising two materials with a different hardness, characterized in that one of the materials is in the form of particles having a particle size of between 0.2 and 10 mm, and preferably between 0.2 and 3 mm distributed randomly in a matrix comprising the other material.
  2. Lapping tool according to claim 1, characterized in that the matrix consists of a thermosetting resin.
  3. Lapping tool according to claim 1, characterized in that the matrix comprises a metallic material covered with a binder based on a thermosetting resin.
  4. Lapping tool according to one of the preceding claims, characterized in that the particles comprise a metallic material covered with a binder made of thermosetting resin.
  5. Lapping tool according to one of the preceding claims, characterized in that the metallic material represents 20 to 90%, and preferably 50 to 65 % of the weight of the particles.
  6. Lapping tool according to one of the preceding claims, characterized in that the particles represent 2 to 40 %, and preferably 3 to 20 % of the weight of the lapping tool.
  7. Lapping tool according to one of claims 4 to 6, characterized in that the non abrasive metallic material is selected from chromium, iron, stainless steel, cast iron, nickel, copper, titanium oxide, zinc, antimony, aluminium, tin and lead.
  8. Method for manufacturing a lapping tool, characterized in that it comprises mixing particles having a particle size of between 0.2 and 10 mm, and preferably between 0.2 and 3 mm in a first mixture comprising a first non abrasive powdered material, a thermosetting resin and a hardening catalyst, with a second liquid mixture comprising a second thermosetting resin compatible with the first, possibly with the addition of a second non abrasive powdered material having a different hardness from the first, and a catalyst added before or after mixing the particles, the whole being then allowed to harden in a mould and the removed from the mould.
  9. Method according to claim 8, characterized in that the first and second resins are identical.
  10. Method according to one of claims 8 or 9, characterized in that it comprises preparing the particles by manufacturing a sheet made of the first mixture and than breaking it up into particles.
EP96402229A 1995-11-08 1996-10-18 Hone and manufacturing of the same Expired - Lifetime EP0773088B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9513199A FR2740716B1 (en) 1995-11-08 1995-11-08 RODOIR AND MANUFACTURING METHOD THEREOF
FR9513199 1995-11-08

Publications (2)

Publication Number Publication Date
EP0773088A1 EP0773088A1 (en) 1997-05-14
EP0773088B1 true EP0773088B1 (en) 2001-01-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP96402229A Expired - Lifetime EP0773088B1 (en) 1995-11-08 1996-10-18 Hone and manufacturing of the same

Country Status (5)

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EP (1) EP0773088B1 (en)
JP (1) JPH09168965A (en)
AT (1) ATE198436T1 (en)
DE (1) DE69611425D1 (en)
FR (1) FR2740716B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104339278A (en) * 2013-08-07 2015-02-11 辽宁黄海砂轮制造有限公司 Millstone, and preparation method and application thereof

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103659576A (en) * 2012-09-20 2014-03-26 苏州赫瑞特电子专用设备科技有限公司 Grinding and polishing plate of single sided grinding and polishing machine
CN110883705A (en) * 2019-12-11 2020-03-17 郑州磨料磨具磨削研究所有限公司 Conductive resin binder grinding wheel and preparation process thereof
US11883303B2 (en) 2019-12-30 2024-01-30 Vertebration, Inc. Spine surgery method and instrumentation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2203301A5 (en) * 1972-10-18 1974-05-10 Lam Plan Sa
JPH01115575A (en) * 1987-10-29 1989-05-08 Tokin Corp Lapping grinding wheel
FR2639278B1 (en) * 1988-11-22 1991-01-11 Lam Plan Sa POLISHING TRAY

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104339278A (en) * 2013-08-07 2015-02-11 辽宁黄海砂轮制造有限公司 Millstone, and preparation method and application thereof

Also Published As

Publication number Publication date
ATE198436T1 (en) 2001-01-15
FR2740716B1 (en) 1998-01-02
JPH09168965A (en) 1997-06-30
EP0773088A1 (en) 1997-05-14
DE69611425D1 (en) 2001-02-08
FR2740716A1 (en) 1997-05-09

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