SE9602480L - Friction welded drill rod and method of manufacturing the drill rod - Google Patents
Friction welded drill rod and method of manufacturing the drill rodInfo
- Publication number
- SE9602480L SE9602480L SE9602480A SE9602480A SE9602480L SE 9602480 L SE9602480 L SE 9602480L SE 9602480 A SE9602480 A SE 9602480A SE 9602480 A SE9602480 A SE 9602480A SE 9602480 L SE9602480 L SE 9602480L
- Authority
- SE
- Sweden
- Prior art keywords
- component
- drill rod
- friction
- rod
- core hardness
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 238000005553 drilling Methods 0.000 abstract 2
- 239000011435 rock Substances 0.000 abstract 2
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 238000003466 welding Methods 0.000 abstract 1
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)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (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)
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.
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 |
PCT/SE1997/001013 WO1997049520A1 (en) | 1996-06-24 | 1997-06-11 | Friction welded drill rod and method for manufacturing the rod |
BR9709852A BR9709852A (en) | 1996-06-24 | 1997-06-11 | Drill rod welded by friction and process for manufacturing the same |
AU32804/97A AU716765B2 (en) | 1996-06-24 | 1997-06-11 | Friction welded drill rod and method for manufacturing the rod |
CA002257488A CA2257488A1 (en) | 1996-06-24 | 1997-06-11 | Friction welded drill rod and method for manufacturing the rod |
EP97928579A EP0912289A1 (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 |
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 SE9602480D0 (en) | 1996-06-24 |
SE9602480L true 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)
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-welded 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 |
WO2023162502A1 (en) * | 2022-02-25 | 2023-08-31 | 国立大学法人大阪大学 | Solid-phase welding method and solid-phase welding joint |
Family Cites Families (1)
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 |
-
1996
- 1996-06-24 SE SE9602480A patent/SE507439C2/en not_active IP Right Cessation
-
1997
- 1997-06-11 JP JP10502780A patent/JP2001502021A/en active Pending
- 1997-06-11 EP EP97928579A patent/EP0912289A1/en not_active Withdrawn
- 1997-06-11 WO PCT/SE1997/001013 patent/WO1997049520A1/en not_active Application Discontinuation
- 1997-06-11 CA CA002257488A patent/CA2257488A1/en not_active Abandoned
- 1997-06-11 BR BR9709852A patent/BR9709852A/en not_active IP Right Cessation
- 1997-06-11 AU AU32804/97A patent/AU716765B2/en not_active Ceased
- 1997-06-13 ZA ZA9705283A patent/ZA975283B/en unknown
Also Published As
Publication number | Publication date |
---|---|
EP0912289A1 (en) | 1999-05-06 |
ZA975283B (en) | 1998-01-05 |
WO1997049520A1 (en) | 1997-12-31 |
JP2001502021A (en) | 2001-02-13 |
SE507439C2 (en) | 1998-06-08 |
SE9602480D0 (en) | 1996-06-24 |
AU3280497A (en) | 1998-01-14 |
BR9709852A (en) | 1999-08-10 |
AU716765B2 (en) | 2000-03-09 |
CA2257488A1 (en) | 1997-12-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |