GB1069975A - Shaping cemented hard metal carbide compositions - Google Patents

Shaping cemented hard metal carbide compositions

Info

Publication number
GB1069975A
GB1069975A GB4930263A GB4930263A GB1069975A GB 1069975 A GB1069975 A GB 1069975A GB 4930263 A GB4930263 A GB 4930263A GB 4930263 A GB4930263 A GB 4930263A GB 1069975 A GB1069975 A GB 1069975A
Authority
GB
United Kingdom
Prior art keywords
shaping
cementing metal
bodies
carbide
hard metal
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
Application number
GB4930263A
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.)
Kennametal Inc
Original Assignee
Kennametal Inc
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 Kennametal Inc filed Critical Kennametal Inc
Publication of GB1069975A publication Critical patent/GB1069975A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
    • C23C30/005—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process on hard metal substrates
    • 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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/24—After-treatment of workpieces or articles
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
    • 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
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12014—All metal or with adjacent metals having metal particles
    • Y10T428/12028—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, etc.]
    • Y10T428/12042—Porous component
    • 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
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12014—All metal or with adjacent metals having metal particles
    • Y10T428/12028—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, etc.]
    • Y10T428/12146—Nonmetal particles in a component
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • ing And Chemical Polishing (AREA)
  • Powder Metallurgy (AREA)

Abstract

In a process of shaping sintered cemented carbide bodies the cementing metal is removed from the surface of the bodies e.g. by leaching, the resultant skeletal surface zone is then shaped and the shaped bodies are then resintered to reinfiltrate cementing metal into the surface zone. The carbide may be at least one of the carbides of W, Ta, Nb, Ti, Zr, Mo and the cementing metal at least one of Co, Ni, Mo, Fe, Cr, W, Mn. The cementing metal is preferably removed by etching for 1/2 to 72 hours in an aqueous solution of up to 25% ferric chloride and containing HCl to give a pH of 2 to 4. Leaching is carried out at 160 DEG -200 DEG F., and part of the carbide body may be masked with vinyl tape. After shaping the leached surface e.g. by grinding, resintering is effected at 2300 DEG - 2800 DEG F., in vacuum, a neutral or hydrogen atmosphere. Using the process intricate shapes such as files, clamping jaws, undercuts, holes may be formed in sintered cemented carbide.
GB4930263A 1962-12-13 1963-12-13 Shaping cemented hard metal carbide compositions Expired GB1069975A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US24445262 US3147542A (en) 1962-12-13 1962-12-13 Shaping cemented hard metal carbide compositions

Publications (1)

Publication Number Publication Date
GB1069975A true GB1069975A (en) 1967-05-24

Family

ID=22922834

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4930263A Expired GB1069975A (en) 1962-12-13 1963-12-13 Shaping cemented hard metal carbide compositions

Country Status (2)

Country Link
US (1) US3147542A (en)
GB (1) GB1069975A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4610931A (en) * 1981-03-27 1986-09-09 Kennametal Inc. Preferentially binder enriched cemented carbide bodies and method of manufacture
USRE34180E (en) * 1981-03-27 1993-02-16 Kennametal Inc. Preferentially binder enriched cemented carbide bodies and method of manufacture

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3370928A (en) * 1964-11-13 1968-02-27 United Aircraft Corp Tungsten carbide base cerment
AT265804B (en) * 1965-09-03 1968-10-25 Boehler & Co Ag Geb Manufacture of wear-resistant armoring
US3543192A (en) * 1968-02-07 1970-11-24 Atomic Energy Commission Constant-impedance variable-delay transmission line
US3964878A (en) * 1973-06-06 1976-06-22 Gte Sylvania Incorporated Cemented carbide employing a refractory metal binder and process for producing same
US3918138A (en) * 1973-06-20 1975-11-11 Kennametal Inc Metallurgical composition embodying hard metal carbides, and method of making
DE2433737C3 (en) * 1974-07-13 1980-05-14 Fried. Krupp Gmbh, 4300 Essen Carbide body, process for its manufacture and its use
DE2435989C2 (en) * 1974-07-26 1982-06-24 Fried. Krupp Gmbh, 4300 Essen Process for the production of a wear-resistant, coated hard metal body for machining purposes
US4150195A (en) * 1976-06-18 1979-04-17 Sumitomo Electric Industries, Ltd. Surface-coated cemented carbide article and a process for the production thereof
US4497874A (en) * 1983-04-28 1985-02-05 General Electric Company Coated carbide cutting tool insert
US4548786A (en) * 1983-04-28 1985-10-22 General Electric Company Coated carbide cutting tool insert
US6638474B2 (en) 2000-03-24 2003-10-28 Kennametal Inc. method of making cemented carbide tool
RU2266346C2 (en) * 2000-03-24 2005-12-20 Кеннаметал Инк Metal ceramic cutter and method for manufacturing the same
US20120151847A1 (en) * 2010-12-21 2012-06-21 Ladi Ram L Protective system for leaching polycrystalline diamond elements
US8261858B1 (en) * 2011-09-02 2012-09-11 Halliburton Energy Services, Inc. Element containing thermally stable polycrystalline diamond material and methods and assemblies for formation thereof
EP3140080A1 (en) 2014-05-07 2017-03-15 Diamond Innovations, Inc. Polycrystalline diamond compact with a modified substrate

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1842103A (en) * 1930-07-03 1932-01-19 Eisler Electric Corp Refractory materiai
US2244053A (en) * 1935-06-22 1941-06-03 Gregory J Comstock Hard cemented carbide composite
US2244052A (en) * 1937-09-23 1941-06-03 Gregory J Comstock Method of forming hard cemented carbide products
US2313227A (en) * 1938-08-04 1943-03-09 Metal Carbides Corp Roll for metal-rolling mills
US2888247A (en) * 1955-12-13 1959-05-26 Sandvikens Jernverks Ab Rock drill cutting insert of sintered hard metal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4610931A (en) * 1981-03-27 1986-09-09 Kennametal Inc. Preferentially binder enriched cemented carbide bodies and method of manufacture
USRE34180E (en) * 1981-03-27 1993-02-16 Kennametal Inc. Preferentially binder enriched cemented carbide bodies and method of manufacture

Also Published As

Publication number Publication date
US3147542A (en) 1964-09-08

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