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SE9602480D0 - A drill rod and method for its manufacturing - Google Patents

A drill rod and method for its manufacturing

Info

Publication number
SE9602480D0
SE9602480D0 SE9602480A SE9602480A SE9602480D0 SE 9602480 D0 SE9602480 D0 SE 9602480D0 SE 9602480 A SE9602480 A SE 9602480A SE 9602480 A SE9602480 A SE 9602480A SE 9602480 D0 SE9602480 D0 SE 9602480D0
Authority
SE
Sweden
Prior art keywords
component
friction
core hardness
rod
manufacturing
Prior art date
Application number
SE9602480A
Other languages
Swedish (sv)
Other versions
SE507439C2 (en
SE9602480L (en
Inventor
Lars-Gunnar Lundell
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
Priority to SE9602480A priority Critical patent/SE507439C2/en
Publication of SE9602480D0 publication Critical patent/SE9602480D0/en
Priority to BR9709852A priority patent/BR9709852A/en
Priority to CA002257488A priority patent/CA2257488A1/en
Priority to PCT/SE1997/001013 priority patent/WO1997049520A1/en
Priority to JP10502780A priority patent/JP2001502021A/en
Priority to EP97928579A priority patent/EP0912289A1/en
Priority to AU32804/97A priority patent/AU716765B2/en
Priority to ZA9705283A priority patent/ZA975283B/en
Publication of SE9602480L publication Critical patent/SE9602480L/en
Publication of SE507439C2 publication Critical patent/SE507439C2/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B23K20/129—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding specially adapted for particular articles or workpieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/04—Tubular or hollow articles
    • B23K2101/06—Tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

The present invention relates to a friction welded product for rock drilling, including a first component (25) and a second component (22) of parent material joined by a friction weld (27). The components have a central inner passage (26). Each component (22, 25) is heat treated at low temperature and is made from a steel having a chemical composition such that the core hardness after nitrocarburizing of the component (22, 25) is at least 440 HV1. The core hardness of the most tempered parts of the heat affected zone close to the weld (27) is about the same as for the core hardness of the rod when cooled to room temperature of at least 390 HV1. The first component (25) comprises a threaded portion (11) and a clearance portion (12) which are pretreated against corrosion fatigue preferably by nitrocarburizing the first component (25) separately and then friction welding it to the second component (22), such as a rod (13). The present invention further relates to a method for manufacturing a friction welded drill rod for rock drilling.
SE9602480A 1996-06-24 1996-06-24 Friction welded drill rod and method of manufacturing the drill rod SE507439C2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
SE9602480A SE507439C2 (en) 1996-06-24 1996-06-24 Friction welded drill rod and method of manufacturing the drill rod
BR9709852A BR9709852A (en) 1996-06-24 1997-06-11 Drill rod welded by friction and process for manufacturing the same
CA002257488A CA2257488A1 (en) 1996-06-24 1997-06-11 Friction welded drill rod and method for manufacturing the rod
PCT/SE1997/001013 WO1997049520A1 (en) 1996-06-24 1997-06-11 Friction welded drill rod and method for manufacturing the rod
JP10502780A JP2001502021A (en) 1996-06-24 1997-06-11 Friction welded drill rod and method of manufacturing the rod
EP97928579A EP0912289A1 (en) 1996-06-24 1997-06-11 Friction welded drill rod and method for manufacturing the rod
AU32804/97A AU716765B2 (en) 1996-06-24 1997-06-11 Friction welded drill rod and method for manufacturing the rod
ZA9705283A ZA975283B (en) 1996-06-24 1997-06-13 A drill rod and method for its manufacturing.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9602480A SE507439C2 (en) 1996-06-24 1996-06-24 Friction welded drill rod and method of manufacturing the drill rod

Publications (3)

Publication Number Publication Date
SE9602480D0 true SE9602480D0 (en) 1996-06-24
SE9602480L SE9602480L (en) 1997-12-25
SE507439C2 SE507439C2 (en) 1998-06-08

Family

ID=20403125

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9602480A SE507439C2 (en) 1996-06-24 1996-06-24 Friction welded drill rod and method of manufacturing the drill rod

Country Status (8)

Country Link
EP (1) EP0912289A1 (en)
JP (1) JP2001502021A (en)
AU (1) AU716765B2 (en)
BR (1) BR9709852A (en)
CA (1) CA2257488A1 (en)
SE (1) SE507439C2 (en)
WO (1) WO1997049520A1 (en)
ZA (1) ZA975283B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE523940C2 (en) * 2002-03-12 2004-06-08 Sandvik Ab Drill bit for rock drilling and a method for manufacturing the drill bit
SE524322C2 (en) * 2002-09-24 2004-07-27 Sandvik Ab Drill rod and method of manufacturing this
SE525664C2 (en) * 2003-05-16 2005-03-29 Atlas Copco Secoroc Ab Joint bar and method of making it
JP2008087003A (en) * 2006-09-29 2008-04-17 Toyota Motor Corp Friction welding member
JP5523373B2 (en) 2011-02-18 2014-06-18 三菱マテリアル株式会社 Hollow steel rod for excavation and manufacturing method thereof
CN103008871A (en) * 2012-12-14 2013-04-03 中国石油集团长城钻探工程有限公司工程服务公司 Friction welding process for novel bainite/martensite duplex-phase steel drill pipe
EP2746419A1 (en) * 2012-12-20 2014-06-25 Sandvik Intellectual Property AB Bainitic steel for rock drilling component
JP6201534B2 (en) * 2013-08-30 2017-09-27 大同特殊鋼株式会社 Steel for carburized parts
CN110042319A (en) * 2019-05-20 2019-07-23 广州广钢新材料股份有限公司 A kind of low temperature screw-thread steel and its production technology
JPWO2023162502A1 (en) * 2022-02-25 2023-08-31

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4817852A (en) * 1987-10-08 1989-04-04 T. H. Industries Method of replacing drill bit heads
SE507440C2 (en) * 1996-06-20 1998-06-08 Sandvik Ab Friction welded drill rod and method of manufacturing the drill rod

Also Published As

Publication number Publication date
ZA975283B (en) 1998-01-05
AU716765B2 (en) 2000-03-09
BR9709852A (en) 1999-08-10
JP2001502021A (en) 2001-02-13
WO1997049520A1 (en) 1997-12-31
AU3280497A (en) 1998-01-14
CA2257488A1 (en) 1997-12-31
SE507439C2 (en) 1998-06-08
EP0912289A1 (en) 1999-05-06
SE9602480L (en) 1997-12-25

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Legal Events

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