EP0558869A1 - Objet comportant une surface abrasive et procédé pour sa fabrication - Google Patents

Objet comportant une surface abrasive et procédé pour sa fabrication Download PDF

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Publication number
EP0558869A1
EP0558869A1 EP92810155A EP92810155A EP0558869A1 EP 0558869 A1 EP0558869 A1 EP 0558869A1 EP 92810155 A EP92810155 A EP 92810155A EP 92810155 A EP92810155 A EP 92810155A EP 0558869 A1 EP0558869 A1 EP 0558869A1
Authority
EP
European Patent Office
Prior art keywords
hard material
material elements
elements
carrier matrix
end sections
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.)
Withdrawn
Application number
EP92810155A
Other languages
German (de)
English (en)
Inventor
Hans-Walter Dr. Schläpfer
Giorgio Arnosti
Fritz Staub
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.)
Sulzer AG
Original Assignee
Sulzer AG
Gebrueder Sulzer AG
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 Sulzer AG, Gebrueder Sulzer AG filed Critical Sulzer AG
Priority to EP92810155A priority Critical patent/EP0558869A1/fr
Publication of EP0558869A1 publication Critical patent/EP0558869A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
    • B24B13/01—Specific tools, e.g. bowl-like; Production, dressing or fastening of these tools
    • 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
    • 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
    • B24D5/06—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor with inserted abrasive blocks, e.g. segmental
    • B24D5/063—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor with inserted abrasive blocks, e.g. segmental with segments embedded in a matrix which is rubbed away during the grinding process
    • 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
    • B24D7/06—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 with inserted abrasive blocks, e.g. segmental
    • B24D7/063—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 with inserted abrasive blocks, e.g. segmental with segments embedded in a matrix which is rubbed away during the grinding process

Definitions

  • the invention relates to an object with an abrasion surface, which is essentially determined by ends of hard material elements embedded in the carrier matrix, distributed over a defined surface area and protruding from a carrier matrix.
  • the invention further relates to a method for producing the object.
  • an object of the type mentioned is known in the form of a foil-like metal strip, in which hard material elements in the form of elongated crystals in a metal matrix are primary precipitates from the melt, predominantly near the surface of the at least partially amorphously solidified metal strip enrich.
  • the hard metal crystals the length of which is greater than the strip thickness and / or which are arranged closer to the free surface of the metal matrix, are more or less far above the basic level the surface in front if they are erected before the metal matrix melts.
  • the tips of these crystals are held in collar-like elevations in the metal matrix, which prevent them from breaking out of the metal matrix.
  • the known metal strip is characterized by good anchoring of the hard material crystals formed, for example, by metal borides, carbides or oxides and can accordingly be designed with an abrasion surface of great hardness, the roughness of which is due to the density of the ends of the hard material crystals protruding from the metal matrix is determined.
  • this density can be, for example, approximately 20% of the surface of the metal strip, which limits the area of application of the known metal strip accordingly.
  • the invention has for its object to provide a particularly improved in this regard, suitable for an expanded field of application object of the type mentioned, in which the hard material elements forming the abrasion surface are arranged in a higher density than in previous designs.
  • the hard material elements are designed in the form of rod-like fibers arranged next to one another in the carrier matrix, each of which is oriented transversely to the abrasion surface at a predetermined, essentially the same angle.
  • the embodiment according to the invention allows the ends of the hard material elements protruding from the carrier matrix to be arranged in a density which is at least 40% of the defined surface of the carrier matrix.
  • the object designed according to the invention is therefore a tool for the fine machining of hard, brittle materials, For example, for grinding in the micrometer or nanometer range ("micro / nanocutting” or “grinding"), which, in particular when processing optical lenses and mirrors, ensures the high quality of the surface to be processed, which is required for such applications.
  • the crystals can be solidified by metallurgically bound precipitates from the alloy by means of their longitudinal extension be formed according to solidified molded part. This allows the hard material crystals to be arranged in a relatively high density, e.g. 70% of the defined surface area, and thus an optimal abrasion surface for the described applications, can be achieved.
  • a method for producing the article according to the invention is that a multiphase body is produced which contains hard material elements in the form of juxtaposed, rod-like fibers in a carrier matrix made of a relatively soft base material, each of which in the carrier matrix at a predetermined angle transverse to one are defined, and that a layer of predetermined thickness is removed from the carrier matrix surrounding the end sections of the hard material elements on this surface section.
  • the method according to the invention permits the production of processing tools with any freely selectable free length of the end sections projecting over the carrier matrix the hard material elements and thus enables a targeted influencing of shape and quality, for example flatness or a certain curvature, of the abrasion surface formed by the end faces of the end sections.
  • the tool part 1 can consist of an alloy which is a metal from the group of the elements iron, cobalt, nickel, copper, zinc, aluminum, manganese or a combination of these elements and Contains metalloid from the group of the elements boron, carbon, nitrogen, oxygen, silicon, phosphorus or from a combination of these elements and an element from groups IV A, VA or VI A or a combination of these elements.
  • the carrier matrix 4 of the tool part 1 can consist of the metal of the alloy, the hard material elements 5 being formed by elongated, stem-shaped hard material crystals running parallel to one another, which penetrate the carrier matrix 4 over their thickness and with free-standing end sections 5a over an upper one Protruding the base area 4a of the carrier matrix 4.
  • these hard material crystals can be formed by metal borides, carbides, nitrides, oxides, silicides, phosphides or corresponding compounds.
  • the hard material crystals can consist of chromium carbide and the carrier matrix 4 can consist of cobalt.
  • the tool part 1 can be made from a disk-like length section 6 of a multiphase body 7 with any cross section, in the example shown a cylindrical molded part, which is produced from the melt of one of the aforementioned alloys and in a manner known per se -
  • a cylindrical molded part which is produced from the melt of one of the aforementioned alloys and in a manner known per se -
  • solidified crystals grow in the form of parallel fibers embedded in the relatively soft carrier matrix 4, which penetrate the multiphase body (molded part) 7 over its entire length.
  • the disc-like length section 6 can be separated from the multi-phase body 7 by a cross-section, as shown in the illustration, at right angles to the fibers of the hard material elements 5 and, if necessary, additionally processed, e.g. be ground to a smaller thickness or be executed with a defined surface of predetermined shape and / or flatness.
  • an etching process e.g.
  • Deep etching, or another selective ablation process which attacks the metal of the carrier matrix 4, but not the hard material elements 5, removes a layer of the carrier matrix 4 surrounding the hard material elements 5 to a basic thickness A, whereby the end sections 5a of the hard material elements 5 on a corresponding one Length L are exposed, which can be 0.01 - 5 mm, in the example shown about 0.1 mm.
  • the tool part 1 is designed with a total thickness D which corresponds to the sum of the basic thickness A and the length L of the end section 5a and which can be approximately 3 to 5 mm in the example shown.
  • the end faces of the end sections 5a of the hard material elements 5 can also have the abrasion surface 2 forming cover layer 10 may be provided, which consists of a different material than the hard material elements 5, so that the abrasion surface 2 with properties that can be influenced independently of the composition of the multiphase body 7, for example with greater hardness, and / or the behavior of the hard material elements 5 can be improved under operating conditions.
  • Any hard material for example diamond-like carbon, can be provided as the material of the cover layer 10, which in a coating device, not shown, by a known coating method, for example by chemical or physical deposition from the gas phase, onto the end faces of the exposed end sections 5a - and at the same time the base can be applied 4a.
  • the hard material elements 5 under a 90 o angle deviating ⁇ be aligned, which in this embodiment corresponding by an obliquely 5 extending to the fibers of the hard material elements sectional area of the multi-phase body 7 and one of the latter by a against the abrasion surface 2
  • Diagonal cut separated length section 6 '' is determined.
  • the abrasion surface 2 is formed by the inclined end faces in the cut surface of the inclined end sections 5a which are released in the manner described.
  • a grinding wheel 11 with a cylindrical-shaped abrasion surface 2 the hard material elements 5 are aligned essentially radially, and thus at right angles to a cylindrical outer surface 8 ', on which the abrasion surface 2 through exposed portions 5a of the hard material elements 5 is formed in the manner described.
  • the grinding wheel 11 can also be made a molded body designed as a multiphase body 7 ', which - by controlled cooling of its peripheral part, primarily through the lateral surface 8' - has a solidified structure directed from a central area against the peripheral part, in which the hard material elements 5 form the carrier matrix 4 of stalk-shaped crystals solidified in the radial direction.
  • the abrasion surface 2 can be designed in the form of a concave or a convex lateral surface of a corresponding rotating body.
  • the carrier matrix 4 can also be made of a plastic, e.g. Epoxy resin, or a ceramic material, e.g. Aluminum oxide.
  • An object with a carrier matrix 4 consisting of plastic is e.g. can be used as a tool for wet grinding, the heat generated during grinding being dissipated by cooling the carrier matrix 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
EP92810155A 1992-03-02 1992-03-02 Objet comportant une surface abrasive et procédé pour sa fabrication Withdrawn EP0558869A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP92810155A EP0558869A1 (fr) 1992-03-02 1992-03-02 Objet comportant une surface abrasive et procédé pour sa fabrication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP92810155A EP0558869A1 (fr) 1992-03-02 1992-03-02 Objet comportant une surface abrasive et procédé pour sa fabrication

Publications (1)

Publication Number Publication Date
EP0558869A1 true EP0558869A1 (fr) 1993-09-08

Family

ID=8211876

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92810155A Withdrawn EP0558869A1 (fr) 1992-03-02 1992-03-02 Objet comportant une surface abrasive et procédé pour sa fabrication

Country Status (1)

Country Link
EP (1) EP0558869A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2281075A (en) * 1993-08-18 1995-02-22 Hiroshi Hashimoto Grinding tool having abrasive protruberances on the surface thereof
FR2950078A1 (fr) * 2009-09-11 2011-03-18 Messier Dowty Sa Piece metallique pourvue de renforts fibreux a extremite biseautee.
ITVI20120287A1 (it) * 2012-10-26 2014-04-27 Premier S R L Fresa per l'abrasione di piastrelle e simili

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2105827A5 (fr) * 1970-09-17 1972-04-28 Barnes Drill Co
US3902864A (en) * 1970-06-03 1975-09-02 Gen Dynamics Corp Composite material for making cutting and abrading tools
SU841947A1 (ru) * 1979-08-16 1981-06-30 Всесоюзный Заочный Машиностроитель-Ный Институт Способ изготовлени абразивногоиНСТРуМЕНТА из НЕМАгНиТНыХ МАТЕРиАлОВ
US4295885A (en) * 1975-12-24 1981-10-20 General Dynamics Corporation Material and method for securing boron filaments to each other and to a substrate and cutting tools therefrom
EP0263785A1 (fr) * 1986-09-15 1988-04-13 Abrasive Technology N.A., Inc. Article abrasif flexible recouvert d'un enduit et procédé pour sa fabrication
EP0321969A2 (fr) * 1987-12-23 1989-06-28 Fortuna-Werke Maschinenfabrik GmbH Roulette de dressage et son procédé de fabrication
US4863490A (en) * 1988-02-22 1989-09-05 Gte Laboratories Incorporated Titanium diboride-based composite articles with alumina dispersoids, having improved fracture toughness
EP0426173A2 (fr) * 1989-10-31 1991-05-08 Toyoda Koki Kabushiki Kaisha Dresse-meules diamanté
US5022894A (en) * 1989-10-12 1991-06-11 General Electric Company Diamond compacts for rock drilling and machining
JPH03181585A (ja) * 1989-12-11 1991-08-07 Sumitomo Chem Co Ltd 研磨研削材料

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3902864A (en) * 1970-06-03 1975-09-02 Gen Dynamics Corp Composite material for making cutting and abrading tools
FR2105827A5 (fr) * 1970-09-17 1972-04-28 Barnes Drill Co
US4295885A (en) * 1975-12-24 1981-10-20 General Dynamics Corporation Material and method for securing boron filaments to each other and to a substrate and cutting tools therefrom
SU841947A1 (ru) * 1979-08-16 1981-06-30 Всесоюзный Заочный Машиностроитель-Ный Институт Способ изготовлени абразивногоиНСТРуМЕНТА из НЕМАгНиТНыХ МАТЕРиАлОВ
EP0263785A1 (fr) * 1986-09-15 1988-04-13 Abrasive Technology N.A., Inc. Article abrasif flexible recouvert d'un enduit et procédé pour sa fabrication
EP0321969A2 (fr) * 1987-12-23 1989-06-28 Fortuna-Werke Maschinenfabrik GmbH Roulette de dressage et son procédé de fabrication
US4863490A (en) * 1988-02-22 1989-09-05 Gte Laboratories Incorporated Titanium diboride-based composite articles with alumina dispersoids, having improved fracture toughness
US5022894A (en) * 1989-10-12 1991-06-11 General Electric Company Diamond compacts for rock drilling and machining
EP0426173A2 (fr) * 1989-10-31 1991-05-08 Toyoda Koki Kabushiki Kaisha Dresse-meules diamanté
JPH03181585A (ja) * 1989-12-11 1991-08-07 Sumitomo Chem Co Ltd 研磨研削材料

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
DATABASE WPIL Derwent Publications Ltd., London, GB; AN 82-E2714E & SU-A-841 947 (ERMAKOV Y U M & KRASNOV A V) 16. August 1979 *
DATABASE WPIL Derwent Publications Ltd., London, GB; AN 88-100177 & EP-A-263 785 (DIABRASIVE INT.) 13. April 1988 *
DATABASE WPIL Derwent Publications Ltd., London, GB; AN 89-332045 & US-A-4 863 490 (TOMISLAV S.) 5. September 1989 *
DATABASE WPIL Derwent Publications Ltd., London, GB; AN 91-111012 & US-A-5 022 894 (GENERAL ELECTRIC CO.) 11. Juni 1991 *
Derwent Publications Ltd., London, GB; AN 91-276813 & JP-A-3 181 585 (SUMITOMO CHEM IND K.K.) 7. August 1991 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2281075A (en) * 1993-08-18 1995-02-22 Hiroshi Hashimoto Grinding tool having abrasive protruberances on the surface thereof
GB2281075B (en) * 1993-08-18 1998-04-01 Hiroshi Hashimoto Grinding tool
US6142860A (en) * 1993-08-18 2000-11-07 Hiroshi Hashimoto Grinding tool
FR2950078A1 (fr) * 2009-09-11 2011-03-18 Messier Dowty Sa Piece metallique pourvue de renforts fibreux a extremite biseautee.
WO2011029619A3 (fr) * 2009-09-11 2011-05-05 Messier-Dowty Sa Piece metallique pourvue de renforts fibreux a extremite biseautee
CN102597293A (zh) * 2009-09-11 2012-07-18 梅西耶-布加蒂-道提公司 设有纤维加固件并具有倾斜边缘的金属部件
CN102597293B (zh) * 2009-09-11 2014-03-19 梅西耶-布加蒂-道提公司 设有纤维加固件并具有倾斜边缘的金属部件
ITVI20120287A1 (it) * 2012-10-26 2014-04-27 Premier S R L Fresa per l'abrasione di piastrelle e simili

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