GB1166839A - Improvements in or relating to Sintered Tool Tips - Google Patents

Improvements in or relating to Sintered Tool Tips

Info

Publication number
GB1166839A
GB1166839A GB5723366A GB5723366A GB1166839A GB 1166839 A GB1166839 A GB 1166839A GB 5723366 A GB5723366 A GB 5723366A GB 5723366 A GB5723366 A GB 5723366A GB 1166839 A GB1166839 A GB 1166839A
Authority
GB
United Kingdom
Prior art keywords
sintered
mixture
composite
matrix
mixtures
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
GB5723366A
Inventor
Harvey Fruish
John Randell
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries Ltd
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 Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Priority to GB5723366A priority Critical patent/GB1166839A/en
Publication of GB1166839A publication Critical patent/GB1166839A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
    • C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
    • B23B27/148—Composition of the cutting inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
    • B23P15/30—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools lathes or like tools
    • 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
    • C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
    • C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
    • C22C29/08—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)

Abstract

1,166,839. Sintered cemented carbides. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Dec.18, 1967 [Dec.21, 1966], No.57233/66. Heading C7D. A composite sintered cemented carbide tool tip material is made from at least two different grades of powder mixtures each consisting of one or more refractory metal carbides such as WC, TiC, TaC, NbC, and one of the binders Fe, Co or Ni, one of the mixtures (A) being compacted and partially sintered and then crushed to form granules which are then mixed with the other powder mixture (B) to form a composite mixture which is compacted and sintered to form a composite material consisting of a sintered matrix of the powder mixture (B) containing dispersed sintered granules of the mixture (A) previously partially sintered, in the size range 50-250 microns. Examples are given of the preparation of the following composites made from two different grades of mixtures, one of which is a mixture of W% of an 80/20 of WC and TiC with X% Co, and the other is a mixture of Y% WC and Z% Co, where W, X, Y and Z are respectively 5-50%, 3-10%, 5-50% and 3-50% by total weight of the final sintered composite. The composite can be used for machining steel or cast iron workpieces at a surface speed of 600 ft. /minute at a feedrate 0À020 inches/revolution of the workpiece. The metal carbides have a grain size of 1-5 microns and the method can be such as to produce granules of a cast iron cutting grade in a matrix of a steel cutting grade or vice versa. Alternatively two steel cutting grades may be used together or two cast iron cutting grades may be combined to form a matrix of coarse grained cemented carbide with a dispersion of a fine grained cemented carbide.
GB5723366A 1966-12-21 1966-12-21 Improvements in or relating to Sintered Tool Tips Expired GB1166839A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5723366A GB1166839A (en) 1966-12-21 1966-12-21 Improvements in or relating to Sintered Tool Tips

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5723366A GB1166839A (en) 1966-12-21 1966-12-21 Improvements in or relating to Sintered Tool Tips

Publications (1)

Publication Number Publication Date
GB1166839A true GB1166839A (en) 1969-10-08

Family

ID=10478689

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5723366A Expired GB1166839A (en) 1966-12-21 1966-12-21 Improvements in or relating to Sintered Tool Tips

Country Status (1)

Country Link
GB (1) GB1166839A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2563073C2 (en) * 2010-10-07 2015-09-20 Сандвик Интеллекчуал Проперти Аб Male die from cemented carbide

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2563073C2 (en) * 2010-10-07 2015-09-20 Сандвик Интеллекчуал Проперти Аб Male die from cemented carbide

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees