CA2072302A1 - Rock drill bit and method of making same - Google Patents

Rock drill bit and method of making same

Info

Publication number
CA2072302A1
CA2072302A1 CA2072302A CA2072302A CA2072302A1 CA 2072302 A1 CA2072302 A1 CA 2072302A1 CA 2072302 A CA2072302 A CA 2072302A CA 2072302 A CA2072302 A CA 2072302A CA 2072302 A1 CA2072302 A1 CA 2072302A1
Authority
CA
Canada
Prior art keywords
shank
tip
head
drill bit
rock drill
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
CA2072302A
Other languages
French (fr)
Other versions
CA2072302C (en
Inventor
Thomas E. Hill
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.)
Loudon Enterprises Inc
Original Assignee
Thomas E. Hill
Loudon Enterprises, 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 Thomas E. Hill, Loudon Enterprises, Inc. filed Critical Thomas E. Hill
Publication of CA2072302A1 publication Critical patent/CA2072302A1/en
Application granted granted Critical
Publication of CA2072302C publication Critical patent/CA2072302C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for 
    • B23P11/02—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for  by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
    • B23P11/025—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for  by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits by using heat or cold
    • 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
    • E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49863—Assembling or joining with prestressing of part
    • Y10T29/49865—Assembling or joining with prestressing of part by temperature differential [e.g., shrink fit]

Abstract

A rock drill bit having a shank and a replaceable cutting head, comprising steps of producing a shank having a tip with an outer surface having a given shape, producing a head having a working face at one end and a recess at the other end with a cross-section corresponding in shape to that of the shank tip, and having a size .15% less than that of the shank tip, cooling the shank in a cryogenic gas at ambient pressure to reduce its size, installing the head on the shank tip, and permitting the components to return to ambient temperature, to establish a shrink fit between the head and the shank.
CA002072302A 1991-06-28 1992-06-25 Rock drill bit and method of making same Expired - Fee Related CA2072302C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US721,767 1991-06-28
US07/721,767 US5150636A (en) 1991-06-28 1991-06-28 Rock drill bit and method of making same

Publications (2)

Publication Number Publication Date
CA2072302A1 true CA2072302A1 (en) 1992-12-29
CA2072302C CA2072302C (en) 1995-05-09

Family

ID=24899230

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002072302A Expired - Fee Related CA2072302C (en) 1991-06-28 1992-06-25 Rock drill bit and method of making same

Country Status (10)

Country Link
US (1) US5150636A (en)
JP (1) JPH0711857A (en)
CN (1) CN1027768C (en)
AU (1) AU655474B2 (en)
BR (1) BR9202493A (en)
CA (1) CA2072302C (en)
DE (1) DE4220846A1 (en)
MX (1) MX9203650A (en)
SE (1) SE9201947L (en)
ZA (1) ZA924698B (en)

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US5974877A (en) * 1996-05-01 1999-11-02 Food Engineering Corporation Sight window assembly and method of forming same
CN1059850C (en) * 1997-04-09 2000-12-27 郑安明 Method for precision hot-forging mine drill bit
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WO1999002297A1 (en) * 1997-07-09 1999-01-21 Cook Harold D Machine tool extension and method of forming the same
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SE9904752A (en) * 1999-12-22 2000-01-24 Sandvik Ab Toolholder and insert arrangement with a shrink fit coupling
SE516501C2 (en) * 2000-05-18 2002-01-22 Sandvik Ab Utilities Connection
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US6766870B2 (en) * 2002-08-21 2004-07-27 Baker Hughes Incorporated Mechanically shaped hardfacing cutting/wear structures
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US7472764B2 (en) * 2005-03-25 2009-01-06 Baker Hughes Incorporated Rotary drill bit shank, rotary drill bits so equipped, and methods of manufacture
US7419017B2 (en) * 2005-06-10 2008-09-02 Keystone Drill Services, Inc. Multi-sectional percussive drill bit assembly
US7703555B2 (en) 2005-09-09 2010-04-27 Baker Hughes Incorporated Drilling tools having hardfacing with nickel-based matrix materials and hard particles
US8002052B2 (en) * 2005-09-09 2011-08-23 Baker Hughes Incorporated Particle-matrix composite drill bits with hardfacing
US7597159B2 (en) 2005-09-09 2009-10-06 Baker Hughes Incorporated Drill bits and drilling tools including abrasive wear-resistant materials
US7776256B2 (en) * 2005-11-10 2010-08-17 Baker Huges Incorporated Earth-boring rotary drill bits and methods of manufacturing earth-boring rotary drill bits having particle-matrix composite bit bodies
US7997359B2 (en) 2005-09-09 2011-08-16 Baker Hughes Incorporated Abrasive wear-resistant hardfacing materials, drill bits and drilling tools including abrasive wear-resistant hardfacing materials
US7784567B2 (en) * 2005-11-10 2010-08-31 Baker Hughes Incorporated Earth-boring rotary drill bits including bit bodies comprising reinforced titanium or titanium-based alloy matrix materials, and methods for forming such bits
US7807099B2 (en) * 2005-11-10 2010-10-05 Baker Hughes Incorporated Method for forming earth-boring tools comprising silicon carbide composite materials
US7802495B2 (en) * 2005-11-10 2010-09-28 Baker Hughes Incorporated Methods of forming earth-boring rotary drill bits
US8770324B2 (en) 2008-06-10 2014-07-08 Baker Hughes Incorporated Earth-boring tools including sinterbonded components and partially formed tools configured to be sinterbonded
US7913779B2 (en) 2005-11-10 2011-03-29 Baker Hughes Incorporated Earth-boring rotary drill bits including bit bodies having boron carbide particles in aluminum or aluminum-based alloy matrix materials, and methods for forming such bits
US7395883B2 (en) * 2005-12-15 2008-07-08 Rockmore International, Inc. Keyed connection for drill bit
DE102006000081A1 (en) * 2006-02-20 2007-08-23 Hilti Ag rock drill
WO2008027484A1 (en) 2006-08-30 2008-03-06 Baker Hughes Incorporated Methods for applying wear-resistant material to exterior surfaces of earth-boring tools and resulting structures
US7775287B2 (en) 2006-12-12 2010-08-17 Baker Hughes Incorporated Methods of attaching a shank to a body of an earth-boring drilling tool, and tools formed by such methods
US7841259B2 (en) 2006-12-27 2010-11-30 Baker Hughes Incorporated Methods of forming bit bodies
US20090155010A1 (en) * 2007-12-17 2009-06-18 Cook Harold D Tool holder dampening system
JP4398497B2 (en) * 2007-10-12 2010-01-13 株式会社丸和技研 Waste melting furnace slag outlet opening bit
US20090308662A1 (en) * 2008-06-11 2009-12-17 Lyons Nicholas J Method of selectively adapting material properties across a rock bit cone
US8261632B2 (en) 2008-07-09 2012-09-11 Baker Hughes Incorporated Methods of forming earth-boring drill bits
US20120145464A1 (en) * 2009-08-05 2012-06-14 Gien Bernard L Bit assembly for a down-the-hole hammer drill
DE102009049451B3 (en) * 2009-10-14 2011-03-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Clamping element for shrink tensioning of bodies of drilling tool, has circular joint element that is arranged between base body and closed tension ring and is fixed to both base and tensioning ring
GB201000869D0 (en) * 2010-01-20 2010-03-10 Element Six Holding Gmbh Superhard pick tool and method for making same
US9028009B2 (en) 2010-01-20 2015-05-12 Element Six Gmbh Pick tool and method for making same
US20130243541A1 (en) * 2012-03-14 2013-09-19 Techniks, Inc. Combined thermal fit and rotational locking machine tool assembly
EP2900408A2 (en) 2012-09-28 2015-08-05 Element Six GmbH Pick tool having a super-hard planar strike surface
WO2015011336A1 (en) * 2013-07-26 2015-01-29 Oy Atlas Copco Rotex Ab Method in putting together of a down-the-hole drilling apparatus and a down-the-hole drilling apparatus
US9487927B1 (en) 2014-01-13 2016-11-08 Michael Stebbins Impact tool
CN105201411A (en) * 2015-10-19 2015-12-30 无锡市永亿精密铸造有限公司 Drill bit containing graphite cone
US10113424B2 (en) 2016-01-13 2018-10-30 Caterpillar Paving Products Inc. Milling tool holder
US10184336B2 (en) 2016-01-13 2019-01-22 Caterpillar Paving Products Inc. Milling tool holder
US10167720B2 (en) 2016-01-13 2019-01-01 Caterpillar Paving Products Inc. Milling tool holder
CN108907297A (en) * 2018-07-18 2018-11-30 佛山市蓝瑞欧特信息服务有限公司 A kind of cold and hot drill bit
US11053741B1 (en) 2020-06-05 2021-07-06 Weatherford Technology Holdings, Llc Sidetrack assembly with replacement mill head for open hole whipstock

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Also Published As

Publication number Publication date
BR9202493A (en) 1993-02-09
MX9203650A (en) 1993-12-01
CA2072302C (en) 1995-05-09
US5150636A (en) 1992-09-29
AU655474B2 (en) 1994-12-22
AU1862592A (en) 1993-01-07
DE4220846A1 (en) 1993-01-14
CN1027768C (en) 1995-03-01
ZA924698B (en) 1993-08-09
SE9201947D0 (en) 1992-06-24
SE9201947L (en) 1992-12-29
CN1074267A (en) 1993-07-14
JPH0711857A (en) 1995-01-13

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed