CA2015132A1 - Tool for cutting solid material - Google Patents

Tool for cutting solid material

Info

Publication number
CA2015132A1
CA2015132A1 CA2015132A CA2015132A CA2015132A1 CA 2015132 A1 CA2015132 A1 CA 2015132A1 CA 2015132 A CA2015132 A CA 2015132A CA 2015132 A CA2015132 A CA 2015132A CA 2015132 A1 CA2015132 A1 CA 2015132A1
Authority
CA
Canada
Prior art keywords
cutting insert
tool
cutting
solid material
tool body
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.)
Granted
Application number
CA2015132A
Other languages
French (fr)
Other versions
CA2015132C (en
Inventor
Jan-Gunnar Hedlund
Jan Gunnar Hjalmar Akerman
Bengt Anders Asberg
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.)
Sandvik AB
Original Assignee
Sandvik AB
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 Sandvik AB filed Critical Sandvik AB
Publication of CA2015132A1 publication Critical patent/CA2015132A1/en
Application granted granted Critical
Publication of CA2015132C publication Critical patent/CA2015132C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/56—Button-type inserts
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/18—Mining picks; Holders therefor
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/18—Mining picks; Holders therefor
    • E21C35/183—Mining picks; Holders therefor with inserts or layers of wear-resisting material
    • E21C35/1831—Fixing methods or devices
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/18—Mining picks; Holders therefor
    • E21C35/183—Mining picks; Holders therefor with inserts or layers of wear-resisting material
    • E21C35/1835—Chemical composition or specific material

Abstract

The present invention relates to a tool for cutting solid material, said tool including a tool body (10) having a supporting surface, and a cutting insert (14) having a generally conical tip portion and a shoulder portion that is intended to rest against the supporting surface, said cutting insert being secured to the tool body, e.g. by brazing. The invention also relates to the cutting insert per se.

When a tool of the above-mentioned type is cutting relatively hard, solid material, e.g. sandstone, the cutting insert will be subjected to very high forces, said forces creating a turning moment that gives rise to tensile stresses in certain portions of the the cutting insert.
Eventually the turning moment is transferred to the brazing joint between the cutting insert and the tool body.

The present invention is characterized in that the cutting insert (14) has a concave portion in between its tip and bottom, said concave portion extending circumferentially around the cutting insert, and that a special type of cemented carbide is used for the cutting insert.

(Fig. 1)
CA002015132A 1989-04-24 1990-04-23 Tool for cutting solid material Expired - Fee Related CA2015132C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8901482-3 1989-04-24
SE8901482A SE463574B (en) 1989-04-24 1989-04-24 TOOLS AND CUTS OF HEAVY METAL FOR CERTAIN PROCESSING OF SOLID MATERIALS

Publications (2)

Publication Number Publication Date
CA2015132A1 true CA2015132A1 (en) 1990-10-24
CA2015132C CA2015132C (en) 1996-03-19

Family

ID=20375770

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002015132A Expired - Fee Related CA2015132C (en) 1989-04-24 1990-04-23 Tool for cutting solid material

Country Status (5)

Country Link
EP (1) EP0395608A3 (en)
JP (1) JP2877434B2 (en)
AU (1) AU633893B2 (en)
CA (1) CA2015132C (en)
SE (1) SE463574B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5181953A (en) * 1989-12-27 1993-01-26 Sumitomo Electric Industries, Ltd. Coated cemented carbides and processes for the production of same
US8678517B2 (en) 2007-08-23 2014-03-25 Sandvik Intellectual Property Ab Reduced volume cutting tip and cutting bit incorporating same
US8210618B2 (en) * 2007-08-23 2012-07-03 Sandvik Intellectual Property Ab Reduced volume cutting tip and cutter bit assembly incorporating same

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE450259C (en) * 1983-03-23 1996-07-04 Sandvik Ab Tools for breaking or cutting solid materials such as asphalt
EP0182759B2 (en) * 1984-11-13 1993-12-15 Santrade Ltd. Cemented carbide body used preferably for rock drilling and mineral cutting
SE456428B (en) * 1986-05-12 1988-10-03 Santrade Ltd HARD METAL BODY FOR MOUNTAIN DRILLING WITH BINDING PHASE GRADIENT AND WANTED TO MAKE IT SAME

Also Published As

Publication number Publication date
JPH03111106A (en) 1991-05-10
EP0395608A2 (en) 1990-10-31
EP0395608A3 (en) 1991-01-02
CA2015132C (en) 1996-03-19
SE463574B (en) 1990-12-10
AU633893B2 (en) 1993-02-11
AU5320090A (en) 1990-10-25
JP2877434B2 (en) 1999-03-31
SE8901482D0 (en) 1989-04-24
SE8901482L (en) 1990-10-25

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed