WO2014191555A3 - Superhard constructions & methods of making same - Google Patents

Superhard constructions & methods of making same Download PDF

Info

Publication number
WO2014191555A3
WO2014191555A3 PCT/EP2014/061267 EP2014061267W WO2014191555A3 WO 2014191555 A3 WO2014191555 A3 WO 2014191555A3 EP 2014061267 W EP2014061267 W EP 2014061267W WO 2014191555 A3 WO2014191555 A3 WO 2014191555A3
Authority
WO
WIPO (PCT)
Prior art keywords
substrate
polycrystalline
superhard material
superhard
interface
Prior art date
Application number
PCT/EP2014/061267
Other languages
French (fr)
Other versions
WO2014191555A2 (en
Inventor
Maweja Kasonde
Valentine KANYANTA
Mehmet Serdar Ozbayraktar
Original Assignee
Element Six Abrasives S.A.
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 Element Six Abrasives S.A. filed Critical Element Six Abrasives S.A.
Priority to CN201480039267.XA priority Critical patent/CN105392584B/en
Priority to US14/892,712 priority patent/US20160144483A1/en
Publication of WO2014191555A2 publication Critical patent/WO2014191555A2/en
Publication of WO2014191555A3 publication Critical patent/WO2014191555A3/en
Priority to US16/208,053 priority patent/US20190337123A1/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B27/00Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/46Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/56Button-type inserts
    • E21B10/567Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts
    • E21B10/573Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts characterised by support details, e.g. the substrate construction or the interface between the substrate and the cutting element
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/02Physical 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
    • B24D3/04Physical 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
    • B24D3/14Physical 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 ceramic, i.e. vitrified bondings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/06Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B51/00Tools for drilling machines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C5/00Milling-cutters
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D77/00Reaming tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/001Physical 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 supporting member
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/02Physical 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
    • B24D3/04Physical 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
    • B24D3/06Physical 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D7/00Bonded 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
    • B24D7/18Wheels of special form
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/46Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/46Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/56Button-type inserts
    • E21B10/567Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/46Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/56Button-type inserts
    • E21B10/567Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts
    • E21B10/573Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts characterised by support details, e.g. the substrate construction or the interface between the substrate and the cutting element
    • E21B10/5735Interface between the substrate and the cutting element
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2222/00Materials of tools or workpieces composed of metals, alloys or metal matrices
    • B23B2222/28Details of hard metal, i.e. cemented carbide
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2226/00Materials of tools or workpieces not comprising a metal
    • B23B2226/12Boron nitride
    • B23B2226/125Boron nitride cubic [CBN]
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2226/00Materials of tools or workpieces not comprising a metal
    • B23B2226/31Diamond
    • B23B2226/315Diamond polycrystalline [PCD]
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C2222/00Materials of tools or workpieces composed of metals, alloys or metal matrices
    • B23C2222/28Details of hard metal, i.e. cemented carbide
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C2226/00Materials of tools or workpieces not comprising a metal
    • B23C2226/12Boron nitride
    • B23C2226/125Boron nitride cubic [CBN]
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C2226/00Materials of tools or workpieces not comprising a metal
    • B23C2226/31Diamond
    • B23C2226/315Diamond polycrystalline [PCD]
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D2277/00Reaming tools
    • B23D2277/24Materials of the tool or the intended workpiece, methods of applying these materials
    • B23D2277/2435Cubic boron nitride [CBN]
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D2277/00Reaming tools
    • B23D2277/24Materials of the tool or the intended workpiece, methods of applying these materials
    • B23D2277/2442Diamond
    • B23D2277/245Diamond polycrystalline [PCD]
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D2277/00Reaming tools
    • B23D2277/24Materials of the tool or the intended workpiece, methods of applying these materials
    • B23D2277/2464Hard metal, i.e. cemented carbide

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Earth Drilling (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Ceramic Products (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

A superhard polycrystalline construction (1) comprises a body (12) of polycrystalline superhard material having a cutting face (14) and a substrate (10) bonded to the body of polycrystalline superhard material along an interface (18). The substrate comprises a substrate body and a first end surface ()20 forming the interface, the first end surface of the substrate comprising a projection extending from the body of the substrate into the body of superhard material towards the cutting face. The projection has an outer peripheral surface around which the body of polycrystalline superhard material extends. The body of polycrystalline superhard material has a thickness (h) from the cutting face along the peripheral side edge (13) to the interface with the substrate of at least around 4mm and at least a portion of the projection has a thickness measured in a plane extending along the longitudinal axis of the construction of at least around 4mm. There is also disclosed a method of making such a superhard polycrystalline construction.
PCT/EP2014/061267 2013-05-31 2014-05-30 Superhard constructions & methods of making same WO2014191555A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201480039267.XA CN105392584B (en) 2013-05-31 2014-05-30 Superhard constructions and methods of making same
US14/892,712 US20160144483A1 (en) 2013-05-31 2014-05-30 Superhard constructions & methods of making same
US16/208,053 US20190337123A1 (en) 2013-05-31 2018-12-03 Superhard constructions & methods of making same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1309798.5 2013-05-31
GBGB1309798.5A GB201309798D0 (en) 2013-05-31 2013-05-31 Superhard constructions & methods of making same

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US14/892,712 A-371-Of-International US20160144483A1 (en) 2013-05-31 2014-05-30 Superhard constructions & methods of making same
US16/208,053 Continuation US20190337123A1 (en) 2013-05-31 2018-12-03 Superhard constructions & methods of making same

Publications (2)

Publication Number Publication Date
WO2014191555A2 WO2014191555A2 (en) 2014-12-04
WO2014191555A3 true WO2014191555A3 (en) 2015-08-13

Family

ID=48805593

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/061267 WO2014191555A2 (en) 2013-05-31 2014-05-30 Superhard constructions & methods of making same

Country Status (4)

Country Link
US (2) US20160144483A1 (en)
CN (1) CN105392584B (en)
GB (2) GB201309798D0 (en)
WO (1) WO2014191555A2 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201323169D0 (en) * 2013-12-31 2014-02-12 Element Six Abrasives Sa Superhard constructions & methods of making same
GB201404782D0 (en) * 2014-03-18 2014-04-30 Element Six Abrasives Sa Superhard constructions & methods of making same
JP6696242B2 (en) * 2015-03-19 2020-05-20 三菱マテリアル株式会社 Drilling tip and drilling bit
CN105569575B (en) * 2015-12-29 2019-04-16 株洲翔宇硬质合金有限公司 A kind of diamond compact and preparation method thereof
GB201523149D0 (en) * 2015-12-31 2016-02-17 Element Six Uk Ltd Super hard constructions & methods of making same
KR102330132B1 (en) * 2016-03-16 2021-11-22 다이아몬드 이노베이션즈, 인크. Methods of making polycrystalline diamond bodies having annular zones with different characteristics
CN108884707B (en) * 2016-03-16 2021-08-24 戴蒙得创新股份有限公司 Polycrystalline diamond body comprising annular regions having different properties
GB201622458D0 (en) * 2016-12-31 2017-02-15 Element Six Ltd Superhard constructions & methods of making same
US20210114116A1 (en) * 2018-06-29 2021-04-22 Ab Sandvik Coromant Method of treating a cutting tool, and a cutting tool
JP7222561B2 (en) * 2019-03-06 2023-02-15 国立大学法人東海国立大学機構 Diamond coated tool and method for making diamond coated tool
JP7038415B2 (en) * 2019-03-06 2022-03-18 国立大学法人東海国立大学機構 Diamond coating tool
EP3950194A4 (en) * 2019-03-26 2023-03-15 Mitsubishi Materials Corporation Base material for hard sintered compact, hard sintered compact, and cutting tool
GB201907505D0 (en) * 2019-05-28 2019-07-10 Element Six Uk Ltd Cutter assembly and methods for making same
CN112276098B (en) * 2020-11-05 2022-12-02 河南亚龙金刚石制品股份有限公司 Non-uniform preformed diamond compact and preparation method thereof
CN112554802A (en) * 2020-12-25 2021-03-26 莱州市金野金刚石制品有限公司 PDC drill bit, PDC composite sheet and box-type installation method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6189634B1 (en) * 1998-09-18 2001-02-20 U.S. Synthetic Corporation Polycrystalline diamond compact cutter having a stress mitigating hoop at the periphery
WO2004007901A1 (en) * 2002-07-10 2004-01-22 Diamond Innovations, Inc. Cutting tools with two-slope profile
GB2419364A (en) * 2004-10-23 2006-04-26 Reedhycalog Uk Ltd Pcd with catalyst free regions
US20120103700A1 (en) * 2010-11-03 2012-05-03 Diamond Innovations, Inc. Cutting element structure with sloped superabrasive layer
US20130000993A1 (en) * 2011-06-30 2013-01-03 Thembinkosi Shabalala Polycrystalline superhard construction

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5486137A (en) * 1993-07-21 1996-01-23 General Electric Company Abrasive tool insert
GB2283772B (en) * 1993-11-10 1997-01-15 Camco Drilling Group Ltd Improvements in or relating to elements faced with superhard material
GB9412779D0 (en) * 1994-06-24 1994-08-17 Camco Drilling Group Ltd Improvements in or relating to elements faced with superhard materials
WO1997004209A1 (en) * 1995-07-14 1997-02-06 U.S. Synthetic Corporation Polycrystalline diamond cutter with integral carbide/diamond transition layer
US6077591A (en) * 1995-09-23 2000-06-20 Camco International (Uk) Limited Elements faced with superhard material
GB2334269B (en) * 1998-02-13 2002-04-17 Camco Internat Improvements in or relating to elements faced with superhard material
GB2305449B (en) * 1995-09-23 1999-04-07 Camco Drilling Group Ltd Improvements in or relating to elements faced with superhard material
US5706906A (en) * 1996-02-15 1998-01-13 Baker Hughes Incorporated Superabrasive cutting element with enhanced durability and increased wear life, and apparatus so equipped
US6571891B1 (en) * 1996-04-17 2003-06-03 Baker Hughes Incorporated Web cutter
US5871060A (en) * 1997-02-20 1999-02-16 Jensen; Kenneth M. Attachment geometry for non-planar drill inserts
US5887580A (en) * 1998-03-25 1999-03-30 Smith International, Inc. Cutting element with interlocking feature
US6527069B1 (en) * 1998-06-25 2003-03-04 Baker Hughes Incorporated Superabrasive cutter having optimized table thickness and arcuate table-to-substrate interfaces
GB9820693D0 (en) * 1998-09-24 1998-11-18 Camco Int Uk Ltd Improvements in perform cutting elements for rotary drag-type drill bits
US6227319B1 (en) * 1999-07-01 2001-05-08 Baker Hughes Incorporated Superabrasive cutting elements and drill bit so equipped
US6722883B2 (en) * 2000-11-13 2004-04-20 G & H Technologies Llc Protective coating for abrasive dental tools and burs
ZA200506823B (en) * 2003-02-26 2006-11-29 Element Six Pty Ltd Secondary cutting element for drill bit
US7243745B2 (en) * 2004-07-28 2007-07-17 Baker Hughes Incorporated Cutting elements and rotary drill bits including same
US20120041225A1 (en) * 2006-02-03 2012-02-16 Vaidya Niteen A Kit for automated resolving agent selection and method thereof
US8066087B2 (en) * 2006-05-09 2011-11-29 Smith International, Inc. Thermally stable ultra-hard material compact constructions
GB0908375D0 (en) * 2009-05-15 2009-06-24 Element Six Ltd A super-hard cutter element
CN201579428U (en) * 2009-11-20 2010-09-15 河南富耐克超硬材料有限公司 Superhard grooving tool
US20110171414A1 (en) * 2010-01-14 2011-07-14 National Oilwell DHT, L.P. Sacrificial Catalyst Polycrystalline Diamond Element
US9067305B2 (en) * 2010-05-18 2015-06-30 Element Six Abrasives S.A. Polycrystalline diamond

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6189634B1 (en) * 1998-09-18 2001-02-20 U.S. Synthetic Corporation Polycrystalline diamond compact cutter having a stress mitigating hoop at the periphery
WO2004007901A1 (en) * 2002-07-10 2004-01-22 Diamond Innovations, Inc. Cutting tools with two-slope profile
GB2419364A (en) * 2004-10-23 2006-04-26 Reedhycalog Uk Ltd Pcd with catalyst free regions
US20120103700A1 (en) * 2010-11-03 2012-05-03 Diamond Innovations, Inc. Cutting element structure with sloped superabrasive layer
US20130000993A1 (en) * 2011-06-30 2013-01-03 Thembinkosi Shabalala Polycrystalline superhard construction

Also Published As

Publication number Publication date
CN105392584A (en) 2016-03-09
GB201409616D0 (en) 2014-07-16
US20160144483A1 (en) 2016-05-26
US20190337123A1 (en) 2019-11-07
WO2014191555A2 (en) 2014-12-04
GB201309798D0 (en) 2013-07-17
GB2516359A (en) 2015-01-21
CN105392584B (en) 2020-05-19
GB2516359B (en) 2017-05-10

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