EP0634250B1 - Plaquette de coupe pour outil de démolition - Google Patents

Plaquette de coupe pour outil de démolition Download PDF

Info

Publication number
EP0634250B1
EP0634250B1 EP19940810258 EP94810258A EP0634250B1 EP 0634250 B1 EP0634250 B1 EP 0634250B1 EP 19940810258 EP19940810258 EP 19940810258 EP 94810258 A EP94810258 A EP 94810258A EP 0634250 B1 EP0634250 B1 EP 0634250B1
Authority
EP
European Patent Office
Prior art keywords
diamond grains
cutting
hard
tools
binder
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
EP19940810258
Other languages
German (de)
English (en)
Other versions
EP0634250A2 (fr
EP0634250A3 (fr
Inventor
Eugen Magyari
Walter Ritt
Peter Jost
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.)
Hilti AG
Original Assignee
Hilti 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 Hilti AG filed Critical Hilti AG
Publication of EP0634250A2 publication Critical patent/EP0634250A2/fr
Publication of EP0634250A3 publication Critical patent/EP0634250A3/fr
Application granted granted Critical
Publication of EP0634250B1 publication Critical patent/EP0634250B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B28D1/14—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by boring or drilling
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
    • B24D3/04—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic
    • B24D3/06—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic metallic or mixture of metals with ceramic materials, e.g. hard metals, "cermets", cements
    • 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
    • B28D1/041—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 with cylinder saws, e.g. trepanning; saw cylinders, e.g. having their cutting rim equipped with abrasive particles
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/27—Cutters, for shaping comprising tool of specific chemical composition
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/252—Glass or ceramic [i.e., fired or glazed clay, cement, etc.] [porcelain, quartz, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/30—Self-sustaining carbon mass or layer with impregnant or other layer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31678—Of metal

Definitions

  • the invention relates to cutting bodies for drills, cutting discs, saws and the like.
  • Material-removing Tools with binder based on metal, hard particles and as Diamond-grained cutting elements.
  • Tools For drilling, cutting and separating stone and building materials such as concrete, brick and the like.
  • Tools are used whose cutting edges are designed as separate cutting bodies and with a support in the form of a hollow cylinder, a disc, a roller and the like.
  • the cutting bodies consist of binding agents, Hard particles and diamond grains.
  • a rock drill which consists of a drill bit sintered carbide.
  • the hard metal consists of hard material particles, which are sintered together using a small amount of binder.
  • To the Diamond grains are embedded in the surface of the drill bit for the purpose of material removal.
  • the service life of the rock drill with a drill bit of the aforementioned known type is determined by the lifespan of the diamond grains. Are the diamond grains worn out due to its wear, the drilling tool is no longer able to fulfill its material-removing function. It should also be borne in mind that the drill bit made of sintered hard metal is extremely hard, but only a small one Toughened carrier for the diamond grains forms. So all Shocks occurring during drilling undamped by the diamond grains on the hard ones Transfer carrier, which leads to excessive stress, so that the Diamond grains can break before their normal wear and so before the usual Wear lead to failure of the drilling tool.
  • a hollow drill which has a hollow cylindrical support has, the end of the drilling direction open end carries cutting body.
  • the Cutting bodies of this known hollow drill consist of a binder in which Diamond grains are embedded.
  • this known hollow drill diamonds are not only on the surface, but present within the entire cutting body consisting of binder.
  • the wear of the diamond grains also removes binders. Is a diamond grain completely worn or it fails, so much binder has been removed at the same time, that another diamond grain is uncovered and fulfill the material-removing function can.
  • the service life of this known hollow drill is only after complete wear the cutting body to the end.
  • the binder forms one elastic carrier for the diamond grains that blows during the drilling process without overwork can be included and not an early break of the Lead diamond grains.
  • the hollow drill known from the last-mentioned publication has thus compared the former rock drill has certain advantages in terms of tool life. Indeed these advantages play out within a certain framework and become particularly heavily influenced by the material to be processed. Is this material? for example, around a very hard concrete, the wear of the diamond grains and especially the binder is so large that in turn very strong tool life-related Disadvantages have to be accepted.
  • the invention has for its object a cutting body for material-removing To create tools that are characterized by a long service life.
  • the hard material particles help to increase the service life through two effects.
  • One is static. Stiffen the hard material particles the binder, for example based on cobalt, and thereby support the diamond grains in their anchoring.
  • the second effect is dynamic and is that the hard material particles the active surface of the binder from the erosive reaction of the protect the surface to be worked on, especially concrete.
  • the abrasion resistance of the binder is reduced by the addition of hard material particles preferably increased by three to four times.
  • the reinforcement of the binder is depending on the amount of hard material particles, precisely controllable.
  • the hard material particles expediently have a grain size of 45 to 90 microns.
  • the hard material particles advantageously consist of tungsten carbide. Such Hard material parts are characterized by their high hardness and also act as additional To cut.
  • the cutting bodies according to the invention can have a wide variety of shapes, the shape being matched to the carrier used.
  • the carrier can be hollow cylinders, disks, rollers and the like. act. While hollow cylinders are used particularly in drilling tools, can be surface processing and cutting devices, for example discs or act as rollers. According to this use find carriers the cutting body, for example, the shape of segments, rings, disks and the like. on.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Earth Drilling (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Sawing (AREA)

Claims (3)

  1. Corps de coupe pour outils d'enlèvement de matière comme par exemple perceuses, meuleuses tronçonneuses, scies, comprenant un liant à base métallique, des particules d'alliage dur et des grains de diamant faisant fonction d'éléments de coupe, caractérisé par des proportions de 6 à 15 % en volume de grains de diamant, de 1 à 3 % en volume de particules d'alliage dur et de 82 à 93 % en volume de liant par rapport au volume total.
  2. Corps de coupe selon la revendication 1, caractérisé en ce que les particules d'alliage dur présentent une granulométrie de 45 à 90 µm.
  3. Corps de coupe selon la revendication 1 ou 2, caractérisé en ce que les particules d'alliage dur sont en carbure de tungstène fondu.
EP19940810258 1993-07-16 1994-05-04 Plaquette de coupe pour outil de démolition Expired - Lifetime EP0634250B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19934323895 DE4323895A1 (de) 1993-07-16 1993-07-16 Schneidkörper für materialabtragende Werkzeuge
DE4323895 1993-07-16

Publications (3)

Publication Number Publication Date
EP0634250A2 EP0634250A2 (fr) 1995-01-18
EP0634250A3 EP0634250A3 (fr) 1995-05-31
EP0634250B1 true EP0634250B1 (fr) 1998-04-22

Family

ID=6492989

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19940810258 Expired - Lifetime EP0634250B1 (fr) 1993-07-16 1994-05-04 Plaquette de coupe pour outil de démolition

Country Status (9)

Country Link
US (1) US5876845A (fr)
EP (1) EP0634250B1 (fr)
JP (1) JPH0768534A (fr)
KR (1) KR100313266B1 (fr)
CN (1) CN1076250C (fr)
AT (1) ATE165265T1 (fr)
CA (1) CA2128071C (fr)
DE (2) DE4323895A1 (fr)
ES (1) ES2115187T3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2824237B2 (ja) * 1988-12-06 1998-11-11 出光興産株式会社 圧縮型冷凍機用潤滑油組成物
US20130022421A1 (en) * 2011-07-21 2013-01-24 Robert Bosch Gmbh Abrasive coring bit
DE102013217969A1 (de) * 2013-09-09 2015-03-12 Sitech Sitztechnik Gmbh Verfahren zum Stabilisieren und/oder zur Reduzierung von innerhalb der wandartigen Struktur auftretenden Verspannungen mittels Laserschweißen
CN113770080B (zh) * 2021-09-16 2022-04-26 六安金銮建筑设备有限公司 一种桥梁建筑用环保型具有防护结构的智能打孔机

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2411867A (en) * 1942-12-19 1946-12-03 Brenner Bert Industrial diamond tool and method of producing same
US3594141A (en) * 1967-03-06 1971-07-20 Norton Co Method for making a metal bonded diamond abrasive tool
US3785938A (en) * 1970-11-05 1974-01-15 A Sam Method for making abrasive articles
US3936577A (en) * 1971-12-15 1976-02-03 E. I. Du Pont De Nemours & Company Method for concomitant particulate diamond deposition in electroless plating, and the product thereof
US3757878A (en) * 1972-08-24 1973-09-11 Christensen Diamond Prod Co Drill bits and method of producing drill bits
US4024675A (en) * 1974-05-14 1977-05-24 Jury Vladimirovich Naidich Method of producing aggregated abrasive grains
ZA77465B (en) * 1977-01-26 1978-09-27 Edenvale Eng Works Metal bonded abrasive tools
US4308035A (en) * 1979-04-04 1981-12-29 Danilova Faina B Composition for fabricating abrasive tools
US4311490A (en) * 1980-12-22 1982-01-19 General Electric Company Diamond and cubic boron nitride abrasive compacts using size selective abrasive particle layers
JPS57175775A (en) * 1981-04-20 1982-10-28 Showa Denko Kk Diamond sintered body
SU967786A1 (ru) * 1981-04-21 1982-10-23 Научно-Исследовательский Институт Камня И Силикатов Мпсм Армсср Металлическа св зка дл алмазного инструмента
JPS5890468A (ja) * 1981-11-16 1983-05-30 Showa Denko Kk レンズの精密研削用シ−トの製造法
JPS58223564A (ja) * 1982-05-10 1983-12-26 Toshiba Corp 砥石およびその製造法
US4655795A (en) * 1983-02-28 1987-04-07 Ex-Cell-O Corporation Abrasive tool for honing
US4525178A (en) * 1984-04-16 1985-06-25 Megadiamond Industries, Inc. Composite polycrystalline diamond
JP2601284B2 (ja) * 1987-09-01 1997-04-16 株式会社石塚研究所 焼結ダイヤモンド複合体、及びその製造方法
US4778730A (en) * 1987-09-09 1988-10-18 Remgrit Corporation Method of applying non-slip coating to tools and resulting product
US4916869A (en) * 1988-08-01 1990-04-17 L. R. Oliver & Company, Inc. Bonded abrasive grit structure
US5133782A (en) * 1989-02-14 1992-07-28 Wiand Ronald C Multilayer abrading tool having an irregular abrading surface and process
US5127197A (en) * 1991-04-25 1992-07-07 Brukvoort Wesley J Abrasive article and processes for producing it

Also Published As

Publication number Publication date
EP0634250A2 (fr) 1995-01-18
JPH0768534A (ja) 1995-03-14
CA2128071A1 (fr) 1995-01-17
KR100313266B1 (ko) 2002-10-25
ES2115187T3 (es) 1998-06-16
DE4323895A1 (de) 1995-01-19
KR950002947A (ko) 1995-02-16
CA2128071C (fr) 2000-05-23
ATE165265T1 (de) 1998-05-15
CN1100683A (zh) 1995-03-29
EP0634250A3 (fr) 1995-05-31
CN1076250C (zh) 2001-12-19
US5876845A (en) 1999-03-02
DE59405758D1 (de) 1998-05-28

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Effective date: 20050531