EP1402080B1 - Outil pour machines-outils - Google Patents

Outil pour machines-outils Download PDF

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Publication number
EP1402080B1
EP1402080B1 EP02748697A EP02748697A EP1402080B1 EP 1402080 B1 EP1402080 B1 EP 1402080B1 EP 02748697 A EP02748697 A EP 02748697A EP 02748697 A EP02748697 A EP 02748697A EP 1402080 B1 EP1402080 B1 EP 1402080B1
Authority
EP
European Patent Office
Prior art keywords
cutting
tool according
reactive
sheathing
bodies
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
EP02748697A
Other languages
German (de)
English (en)
Other versions
EP1402080A2 (fr
Inventor
Christian Bonjour
Christian Walker
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.)
Scintilla AG
Original Assignee
Scintilla 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 Scintilla AG filed Critical Scintilla AG
Publication of EP1402080A2 publication Critical patent/EP1402080A2/fr
Application granted granted Critical
Publication of EP1402080B1 publication Critical patent/EP1402080B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
    • 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
    • B24D5/12—Cut-off wheels
    • 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
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/12—Saw-blades or saw-discs specially adapted for working stone
    • B28D1/121—Circular saw blades
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C26/00—Alloys containing diamond or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10—Processes characterised by the sequence of their steps

Definitions

  • the invention relates to a tool for machine tools according to the preamble of claim 1.
  • diamond cutting wheels for machining hard materials, especially stone, concrete or masonry, known with a base body on which a cutting pad is applied.
  • the cutting coating is composed of a binding material and abrasive cutting bodies or diamonds, which are integrated into the binding material in a hot pressing sintering process.
  • the DE 198 44 397 A1 discloses a method for producing granules of cutting bodies, each equipped with a jacket.
  • the formation of a cutting coating takes place by soldering the cutting body to a tool surface.
  • the invention relates to a tool for machine tools with a base body and a cutting pad, which has a binding material in which abrasive in a sintering process
  • Cutting bodies in particular diamonds, are firmly integrated, at least one cutting body is surrounded by a sheath which is formed as an alloy and which has at least one component of a cutting body reactive base material and at least one component of a non-reactive material and which protects the cutting body during the sintering process ,
  • the non-reactive material of the sheath for conveying the hold of the cutting body in the cutting surface is sintered with the bonding material of the cutting surface.
  • the sheath may have a thickness of 0.001 mm to 0.05 mm. Effective protection is attainable and in particular, so called graphitization, i. a chemical reaction of carbonaceous cutting body with the binding material at temperatures of about 600 ° C to 1200 ° C during the sintering process can be avoided. An associated destruction of the cutting body can be prevented and the life of the cutting body can be increased.
  • the cutting body can be embedded by the sheath in cost and economic binding materials that could otherwise destroy the cutting body.
  • the tool can be advantageously produced in a sintering process at temperatures between 600 ° C to 1200 ° C.
  • the sintering can be carried out at a lower cost and at higher temperatures than a sintering process after a H exertpreßclar.
  • the jacketed Cutting body can be used for all sintering processes, such as hot pressing, free sintering, etc.
  • the non-reactive material achieves an advantageous protection of the cutting body and at the same time can be made by the base material an advantageous connection to the cutting body and by the non-reactive material an advantageous bond to the binding material.
  • the sheath consists only of non-reactive material, whereby the cutting body can be protected particularly advantageous.
  • the base material is a metal or an alloy from the groups of the IUPAC Periodic Table 4-6, a particularly advantageous anchoring of the cutting body, in particular of diamonds, in the sheathing can be achieved. Between carbon (C) and the metallic materials from groups 4-6 of the IUPAC Periodic Table, an advantageous chemical compound can be obtained.
  • the sheath has more non-reactive material than reactive material, which in particular in a sintering process with temperatures of 600 ° C to 1200 ° C, a secure protection can be achieved.
  • metals or metal alloys are suitable as non-reactive material, namely from Groups 9 and 11-14 of the IUPAC Periodic Table. With the listed non-reactive metals can be created between the sheath and the binding material of the cutting pad a secure connection and an advantageous protection can be achieved.
  • cutting bodies are combined with each other, e.g. Cubic boron nitride (CBN) and / or tungsten carbide (WC) diamonds etc., which can be used on steel or reinforced concrete.
  • CBN Cubic boron nitride
  • WC tungsten carbide
  • cutting body only a certain type, especially diamonds, each be surrounded with a sheath, it can be surrounded with the same sheath all the cutting body, or it can be surrounded with different sheaths various cutting body.
  • a CVD method in addition to a granulation process, however, a CVD method, other conceivable to the skilled person that appears reasonable method for coating or for the production of a coating of the abrasive cutting bodies, such as a PVD process (P hysical V apour D eposition, physical vapor deposition method), ( C hemical V apour D eposition, Chemical Vapor Deposition Procedure) etc.
  • PVD process Physical V apour D eposition, physical vapor deposition method
  • C hemical V apour D eposition Chemical Vapor Deposition Procedure
  • the solution according to the invention can be used in various tools with abrasive cutters that appear useful to the person skilled in the art, such as, for example, drills, grinding tools and, in particular, cut-off wheels.
  • Fig. 1 shows a diamond cutting wheel 20 according to the invention of a cutting grinder not shown with a base body 10 and individual segments 22.
  • the segments 22 have a cutting pad 12 with a binding material 14, in which in a free sintering abrasive cutting body 16, namely polycrystalline diamonds firmly integrated are.
  • the cutting bodies 16 are each surrounded by a jacket 18 which protects the cutting bodies 16 during the sintering process ( Fig. 2 and Fig. 3 ).
  • the sheath 18 has a constituent of a base material reactive with the cutting body 16 and a constituent of a non-reactive material.
  • the reactive and the non-reactive material form a Cr-Ni-Cu alloy, wherein Cr is the base material and Ni and Cu are the non-reactive material.
  • the individual metallic components are mixed in powder form. Subsequently, the mixed metallic components and the diamonds 16 are weighed in the required amount.
  • a binder consisting of a plastic powder and an isopropanol is stirred into a solution.
  • the paste-like binder, the metallic components and the cutting bodies 16 are then mixed and processed into granules in a granulating machine. This results in a granulate having a size between 0.1 mm and 1.7 mm, wherein the sheath 18 of the cutting body 16 has a thickness of 0.001 mm to 0.05 mm.
  • the resulting granules and a metallic powder forming the bonding material 14 of the cutting pad 12 are mixed and pressed into a green compact, which is then sintered in a free sintering process at 600 ° C to 1200 ° C.
  • the binding material 14 used was in particular the elements from Groups 6, 9 and 11 of the IUPAC Periodic Table or an alloy of these elements.
  • the base material enters into a chemical reaction with the cutting body 16 and combines with it.
  • the non-reactive material protects the cutting body 16 and, on the one hand, largely prevents decomposition of the cutting body 16 by the base material and, on the other hand, sinters the non-reactive material with the binding material 14 of the cutting lining 12 and promotes the support of the cutting body 16 in the binding material 14 and in the cutting pad 12.
  • the sheath 18, the cutting body 16 and the binding material 14 are firmly connected to each other after the sintering process by diffusion.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Manufacturing & Machinery (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Powder Metallurgy (AREA)

Claims (10)

  1. Outil pour machines-outils, qui présente un corps de base (10) et une garniture de coupe (12) dotée d'un matériau de liant (14) auquel des corps abrasifs de coupe (16), en particulier des diamants, sont incorporés solidairement dans une opération de frittage, au moins un corps de coupe (16) étant entouré par une enveloppe (18) configurée sous la forme d'un alliage présentant un matériau de base dont au moins un composant réagit avec le corps de coupe (16) et dont au moins un composant est en un matériau non réactif qui protège le corps de coupe (16) pendant l'opération de frittage,
    caractérisé en ce que
    le matériau non réactif de l'enveloppe (18) est fritté avec le matériau de liant (14) de la garniture de coupe (12) pour favoriser le maintien du corps de coupe (16) dans la garniture de coupe (12).
  2. Outil selon la revendication 1, caractérisé en ce que l'opération de frittage est une opération de frittage à l'air libre.
  3. Outil selon les revendications 1 et 2, caractérisé en ce que le matériau de base est un métal ou un alliage d'éléments des groupes 4, 5 et/ou 6 du système périodique de l'IUPAC.
  4. Outil selon la revendication 3, caractérisé en ce que l'enveloppe (18) présente davantage de matériau non réactif que de matériau réactif.
  5. Outil selon l'une des revendications 3 ou 4, caractérisé en ce que le matériau non réactif est un métal ou un alliage de métaux.
  6. Outil selon la revendication 5, caractérisé en ce que le matériau non réactif est formé d'éléments des groupes 8, 9, 10, 11, 12, 13 et 14 du système périodique de l'IUPAC.
  7. Outil selon la revendication 6, caractérisé en ce que l'enveloppe (18) contient par rapport au matériau réactif et au matériau non réactif de 10 à 30 % de Cr, de 50 à 70 % de Ni et de 10 à 30 % de Cu.
  8. Outil selon l'une des revendications précédentes, caractérisé en ce qu'au moins certains corps de coupe (16) contiennent au moins du carbone.
  9. Outil selon l'une des revendications précédentes, caractérisé en ce que différents corps abrasifs de coupe (16) sont combinés les uns avec les autres.
  10. Procédé de fabrication d'un outil selon l'une des revendications précédentes, caractérisé en ce que :
    - des poudres des différents composants métalliques de l'enveloppe (18)- sont mélangées,
    - les composants en forme de poudre et les corps abrasifs de coupe (16) sont pesés séparément,
    - un liant est préparé,
    - les composants métalliques, les corps abrasifs de coupe (16) et le liant sont mélangés et transformés en granulés,
    - le granulé et une poudre qui forme le matériau de liant (14) de la garniture de coupe (12) sont mélangés,
    - le mélange de granulé et de poudre est comprimé pour former une ébauche et
    - lors du frittage, les corps abrasifs de coupe (16), l'enveloppe (18) et le matériau de liant (14) se relient les uns aux autres par diffusion et/ou par une réaction chimique.
EP02748697A 2001-06-20 2002-05-10 Outil pour machines-outils Expired - Lifetime EP1402080B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10129599A DE10129599A1 (de) 2001-06-20 2001-06-20 Werkzeug für Werkzeugmaschinen
DE10129599 2001-06-20
PCT/EP2002/005156 WO2003000943A2 (fr) 2001-06-20 2002-05-10 Outil pour machines-outils

Publications (2)

Publication Number Publication Date
EP1402080A2 EP1402080A2 (fr) 2004-03-31
EP1402080B1 true EP1402080B1 (fr) 2009-09-23

Family

ID=7688733

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02748697A Expired - Lifetime EP1402080B1 (fr) 2001-06-20 2002-05-10 Outil pour machines-outils

Country Status (7)

Country Link
EP (1) EP1402080B1 (fr)
JP (1) JP2004520957A (fr)
KR (1) KR100895962B1 (fr)
CN (1) CN1272455C (fr)
AT (1) ATE443779T1 (fr)
DE (2) DE10129599A1 (fr)
WO (1) WO2003000943A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9238277B2 (en) 2009-09-04 2016-01-19 Insstek, Inc. Cutting/polishing tool and manufacturing method thereof

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101791788B (zh) * 2009-11-17 2013-02-06 博深工具股份有限公司 一种冷压烧结金刚石磨盘制备方法
CN105904597B (zh) * 2016-05-23 2018-06-08 江苏华昌工具制造有限公司 无压烧结干切片

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5062865A (en) * 1987-12-04 1991-11-05 Norton Company Chemically bonded superabrasive grit
US5024680A (en) * 1988-11-07 1991-06-18 Norton Company Multiple metal coated superabrasive grit and methods for their manufacture
JPH03277472A (ja) * 1990-03-27 1991-12-09 Sumitomo Metal Ind Ltd ダイヤモンド砥石
US5188643A (en) * 1991-08-01 1993-02-23 General Electric Company Method of applying metal coatings on cubic boron nitride and articles made therefrom
JP3787602B2 (ja) * 1995-05-08 2006-06-21 住友電工ハードメタル株式会社 焼結ダイヤモンド粒子、被覆粒子及び圧密体並びにそれらの製造方法
DE19844397A1 (de) * 1998-09-28 2000-03-30 Hilti Ag Abrasive Schneidkörper enthaltend Diamantpartikel und Verfahren zur Herstellung der Schneidkörper
JP2000141230A (ja) * 1998-11-13 2000-05-23 Mitsubishi Materials Corp メタルボンド砥石およびその製造方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9238277B2 (en) 2009-09-04 2016-01-19 Insstek, Inc. Cutting/polishing tool and manufacturing method thereof
US9764442B2 (en) 2009-09-04 2017-09-19 Insstek, Inc. Cutting/polishing tool and manufacturing method thereof

Also Published As

Publication number Publication date
WO2003000943A2 (fr) 2003-01-03
CN1518605A (zh) 2004-08-04
KR20030034148A (ko) 2003-05-01
JP2004520957A (ja) 2004-07-15
DE50213872D1 (de) 2009-11-05
ATE443779T1 (de) 2009-10-15
DE10129599A1 (de) 2003-01-09
EP1402080A2 (fr) 2004-03-31
CN1272455C (zh) 2006-08-30
KR100895962B1 (ko) 2009-05-07
WO2003000943A3 (fr) 2003-04-24

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