EP1331064B1 - Procédé de fabrication d'outil pour meuler avec des corps abrasifs agglomérés galvaniquement - Google Patents

Procédé de fabrication d'outil pour meuler avec des corps abrasifs agglomérés galvaniquement Download PDF

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Publication number
EP1331064B1
EP1331064B1 EP02001777A EP02001777A EP1331064B1 EP 1331064 B1 EP1331064 B1 EP 1331064B1 EP 02001777 A EP02001777 A EP 02001777A EP 02001777 A EP02001777 A EP 02001777A EP 1331064 B1 EP1331064 B1 EP 1331064B1
Authority
EP
European Patent Office
Prior art keywords
abrasive bodies
abrasive
free
layer
gaps
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
EP02001777A
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German (de)
English (en)
Other versions
EP1331064A1 (fr
Inventor
Dietmar Barden
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.)
Wendt GmbH
Original Assignee
Wendt GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wendt GmbH filed Critical Wendt GmbH
Priority to EP02001777A priority Critical patent/EP1331064B1/fr
Priority to DE50214119T priority patent/DE50214119D1/de
Publication of EP1331064A1 publication Critical patent/EP1331064A1/fr
Application granted granted Critical
Publication of EP1331064B1 publication Critical patent/EP1331064B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B24D7/02—Wheels in one piece
    • 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
    • B24D18/0018—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for by electrolytic deposition
    • 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
    • B24D5/02—Wheels in one piece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D2203/00—Tool surfaces formed with a pattern

Definitions

  • the invention relates to a method for producing a grinding tool with galvanically bonded grinding bodies.
  • abrasive bodies such as CBN, diamond, sapphire or their substitutes in a so-called grain sump
  • the abrasive particles are deposited disorderly on the surface of the tool body and are then galvanically fixed.
  • the most homogeneous possible distribution and concentration of abrasive particles is aimed at by several work steps that improve the population density. It will be free-lying areas, z. B. specifically refilled by pipette, which is both time-consuming and costly.
  • the disadvantage here is that on the one hand a determination of the distribution and the concentration of the abrasive body is possible only with great manual use, and by clogging of chip spaces and occurring multiple coatings, which by height differences (double layering) adversely affect the carrying percentage, the dimensional accuracy and the roughness of the coating and so good and uniform abrasive coatings can hardly be achieved.
  • Abrasive coating areas with a reduced proportion of abrasive particles, which lead to increased roughness and increased wear behavior up to partial destruction of the abrasive body, are just as inevitable as abrasive coating areas with a greatly increased proportion of abrasive particles, which leads to thermal overloads and thus grinding burn due to the reduced chip space.
  • the grinding wheels comprise a cylindrical disk body of metallic properties at least on the outer periphery, where in a grinding zone the individual abrasive grains of the abrasive material with exposed tips are incorporated into a circumferentially applied metal cladding.
  • the abrasive grains form a regular circumferential pattern and the metal plating is practically free of foreign material between the punctiform depositing points of the individual abrasive grains.
  • the abrasive wheel may be provided with a grid that can be made by introducing depressions into the grinding zone. Alternatively, the grid may also be applied by a (electro) chemical plating process and removed after the mesh has been fitted with abrasive grains and a thin plating layer is applied.
  • the object of the invention is to avoid the aforementioned disadvantages and a method of the type mentioned specify, with a simple way a homogeneous distribution of the abrasive can be achieved safely.
  • At least the region of the layer which leaves the recesses free has a mesh or lattice structure or the like, so that a particularly uniform distribution and arrangement of the recesses, and thus also of the grinding bodies, can take place.
  • the structure of the layer may be formed according to the intended arrangement of the abrasive body.
  • the exposure may preferably take place by means of a grid pattern printed on a transparency film or developed on a film, which is brought as close as possible to the photoresist.
  • This method is particularly suitable for plane, non-curved surfaces, where the distance between the photoresist and the film is not essential to parallel beam UV sources.
  • the film or the film can also be arranged directly on the tool body, in particular glued.
  • an aqueous-alkaline solution in different concentrations such.
  • B. 1% or 10% sodium hydroxide solution can be used.
  • the area of the layer leaving the recesses free can be formed as a film with recesses or the like which penetrate completely through the film thickness, so that the film is provided in a roll wound up on a roll, in particular with separating layers, and then onto the tool main body can be applied.
  • the film may already adhere to the tool base body due to its consistency, but it may also have an additional adhesive layer or be attached to the tool base body with a separately applied adhesive.
  • This type of layer application is particularly suitable for radii profiles of more than 8 mm, cylinder profiles and plane surfaces such as any geometric segmentation and grinding wheels of large dimension.
  • the UV exposure can be matched to the respective curved surfaces by optical means, but it is also possible for the tool base body to be exposed to be moved past at least one stationary UV source or a UV source can be moved over the tool base body.
  • the adjoining abrasive grain if it has sufficient support forces of Aussparungswandung, attach in a specific position and orientation. Elongated, rice-grain-like abrasive particles will settle at sufficient support forces at a certain angle and thus preferably complete with the upper cutting edge with the "normal" grains. If the support forces of the recess wall are absent due to an unfavorable length / width ratio of the grain, this is displaced by a grain with a more favorable ratio. Thus, even an elongated diamond grain can co-operate in the later grinding process and increase the service life of the grinding tool.
  • diamond bodies or splinters settle in a so-called second position, they can easily and simply be removed by conventional cleaning measures, since they themselves have no galvanic contact with the tool body, after plating the grinding tool and optionally removing the layer.
  • the geometry, in particular the shape, the extent and / or the depth of the recesses can be matched to the grinding bodies to be mounted.
  • nickel, copper, silver, bronze or compounds of these metals can be used as a galvanic bonding material nickel, copper, silver, bronze or compounds of these metals.
  • the layer can be removed and the free areas can also be galvanized, in particular finished, so that by removing the layer between the abrasive bodies free areas are created which serve as chip space when the grinding tool is used.
  • the material properties of the grinding tool as well as by influencing the free chip space the grinding properties of the grinding tool can be tailored to the respective requirements.
  • the abrasive body distribution and concentration can be matched exactly to the intended use.
  • the abrasive bodies may preferably be arranged in a single-layer coating on the tool base body and the pattern of the abrasive bodies may have areas with one or more abrasive bodies and free areas without abrasive bodies, in particular in a regularly alternating shape.
  • the free areas may be at least partially designed as a mesh and / or grid structure and / or specifically as a chip space.
  • the grinding bodies can be arranged in a position defined with respect to their geometrical dimensions with respect to the tool body, wherein the entirety of the grinding bodies can be arranged such that they form a defined common envelope surface due to their adapted positioning.
  • a galvanic bonding material nickel, copper, silver, bronze or compounds of these metals.
  • FIGS. 1 to 9 show the different production phases of such a process.
  • Fig. 1 shows a detail of a tool base body 1, which has a to be fitted with grinding wheels 2 surface 3.
  • a layer of an acid and alkali-resistant photoresist 4 is applied to the surface 3 of the tool body 1.
  • a UV source 5 is disposed above the photoresist 4, wherein between the UV source 5 and 4 a photoresist designed as a template or the like layer 6 is arranged, the UV-transmissive areas 7 and UV-opaque areas 8 has.
  • This layer 6 may, for. Example, a transparency sheet with printed grid pattern, but it can also be developed a grid pattern on a film, which then serves as a template.
  • the recesses 11 are filled with grinding wheels 2, which may be formed in particular as diamond grains.
  • grinding wheels 2 depending on their size, their respective relative position to a corresponding recess 11 and the dimension of the recess 11, a position in which the abrasive body touches the surface 3 of the tool body 1, or, for. B. has too large dimensions, no contact with the surface.
  • abrasive body 2 may be arranged in so-called second layer.
  • the grinding wheels 2 are galvanically connected to the tool body 1.
  • the grinding wheels 2, which had no contact with the tool body 1, are not connected to these and omitted at the latest by cleaning measures.
  • unwanted second layers and unsuitable grinding wheels 2 are removed from not correspondingly sized recesses 11.
  • this additional layer 12 can be varied freely and is tuned to the size, shape and orientation of the grinding wheels 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Claims (6)

  1. Procédé de fabrication d'un outil de meulage pourvu de corps abrasifs (2) agglomérés galvaniquement, comprenant les étapes de procédé suivantes :
    - sur un corps de base d'outil (1) pouvant être galvanisé, on applique une couche résistante à la galvanisation qui laisse dégagés des évidements (11),
    - les évidements vides (11) sont remplis de corps abrasifs (2), en particulier de grains de diamant,
    - les corps abrasifs (2) sont agglomérés galvaniquement au corps de base d'outil (1), en particulier par nickelage, et
    - la couche est enlevée,
    caractérisé en ce que la couche laissant dégagés des évidements (11) est fabriquée par les étapes de procédé suivantes :
    - sur le corps de base d'outil (1), on applique une couche constituée d'un résist photosensible (4) résistant aux acides et aux alcalis,
    - le résist photosensible (4) séché est, sous une forme renfermant des espaces libres (11), partiellement exposé à une source de lumière ultraviolette (5) et polymérisé,
    - le résist photosensible (4) est développé et fixé,
    - les régions non polymérisées (10) des espaces libres (11) sont enlevées,
    - les espaces libres vides (11) sont remplis de corps abrasifs (2),
    - les corps abrasifs (2) sont agglomérés galvaniquement, en particulier par nickelage, et
    - des régions libres sont créées entre les corps abrasifs (2) par enlèvement au moins partiel des régions polymérisées (9).
  2. Procédé selon la revendication 1, caractérisé en ce qu'au moins les régions de la couche qui laissent dégagés les évidements (11) présentent une structure de grille ou de treillis, ou analogue.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que, à la suite du remplissage des évidements (11) avec les corps abrasifs (2), on effectue une répartition et une orientation des corps abrasifs (2) par vibration.
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que la géométrie, en particulier la forme, l'étendue et/ou la profondeur des évidements (11), est adaptée aux corps abrasifs (2) à mettre en place.
  5. Procédé selon l'une des revendications 1 à 4, caractérisé en ce qu'on utilise comme matériau d'agglomération galvanique du nickel, du cuivre, de l'argent, du bronze ou des composés de ces métaux.
  6. Procédé selon l'une des revendications 1 à 5, caractérisé en ce que la couche est enlevée et les régions libres obtenues sont galvanisées, notamment sont soumises à un nickelage de finition.
EP02001777A 2002-01-25 2002-01-25 Procédé de fabrication d'outil pour meuler avec des corps abrasifs agglomérés galvaniquement Expired - Lifetime EP1331064B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP02001777A EP1331064B1 (fr) 2002-01-25 2002-01-25 Procédé de fabrication d'outil pour meuler avec des corps abrasifs agglomérés galvaniquement
DE50214119T DE50214119D1 (de) 2002-01-25 2002-01-25 Verfahren zur Herstellung eines Schleifwerkzeuges mit galvanisch gebundenen Schleifkörpern

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02001777A EP1331064B1 (fr) 2002-01-25 2002-01-25 Procédé de fabrication d'outil pour meuler avec des corps abrasifs agglomérés galvaniquement

Publications (2)

Publication Number Publication Date
EP1331064A1 EP1331064A1 (fr) 2003-07-30
EP1331064B1 true EP1331064B1 (fr) 2009-12-23

Family

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Family Applications (1)

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EP02001777A Expired - Lifetime EP1331064B1 (fr) 2002-01-25 2002-01-25 Procédé de fabrication d'outil pour meuler avec des corps abrasifs agglomérés galvaniquement

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EP (1) EP1331064B1 (fr)
DE (1) DE50214119D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108527182A (zh) * 2018-05-10 2018-09-14 上海交通大学 利用掩膜版制备磨粒有序排布的金刚石磨料工具的方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107336148A (zh) * 2017-08-01 2017-11-10 华侨大学 一种快速制备磨粒图案分布磨盘的方法
CN107336150A (zh) * 2017-08-01 2017-11-10 华侨大学 一种沉积制备磨粒图案分布磨盘的方法
CN107443264A (zh) * 2017-08-01 2017-12-08 华侨大学 一种基于临时覆盖层定厚制备磨粒群排布磨盘的方法
CN115106936B (zh) * 2022-06-24 2023-03-28 中国地质大学（武汉） 一种金刚石修整盘及其制备方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU1215788A (en) * 1987-02-27 1988-09-01 Diabrasive International Ltd. Flexible abrasives
US5380390B1 (en) * 1991-06-10 1996-10-01 Ultimate Abras Systems Inc Patterned abrasive material and method
DE19643113A1 (de) 1996-10-21 1998-04-30 Diamant Boart Sa Schleifscheibe zur Randbearbeitung von optischen Linsen aus Kunststoff, Verfahren zur Herstellung von Schleifscheiben und Verfahren zum Konturschleifen von optischen Kunststofflinsen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108527182A (zh) * 2018-05-10 2018-09-14 上海交通大学 利用掩膜版制备磨粒有序排布的金刚石磨料工具的方法

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EP1331064A1 (fr) 2003-07-30
DE50214119D1 (de) 2010-02-04

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