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WO2008008002A3 - Method for producing internal thread on the end section of a tubular billet - Google Patents

Method for producing internal thread on the end section of a tubular billet Download PDF

Info

Publication number
WO2008008002A3
WO2008008002A3 PCT/RU2007/000361 RU2007000361W WO2008008002A3 WO 2008008002 A3 WO2008008002 A3 WO 2008008002A3 RU 2007000361 W RU2007000361 W RU 2007000361W WO 2008008002 A3 WO2008008002 A3 WO 2008008002A3
Authority
WO
WIPO (PCT)
Prior art keywords
end section
tubular billet
internal thread
tubular
thread
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.)
Ceased
Application number
PCT/RU2007/000361
Other languages
French (fr)
Russian (ru)
Other versions
WO2008008002A2 (en
Inventor
Albert Sergeevich Ezhev
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.)
NAUCHNO-VNEDRENCHESKIY TSENTR MASHINY I OBORUDOVANIE DLYA ENERGETIKI"
N VNEDRENCHESKIY TS MASHINY I
Original Assignee
NAUCHNO-VNEDRENCHESKIY TSENTR MASHINY I OBORUDOVANIE DLYA ENERGETIKI"
N VNEDRENCHESKIY TS MASHINY I
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 NAUCHNO-VNEDRENCHESKIY TSENTR MASHINY I OBORUDOVANIE DLYA ENERGETIKI", N VNEDRENCHESKIY TS MASHINY I filed Critical NAUCHNO-VNEDRENCHESKIY TSENTR MASHINY I OBORUDOVANIE DLYA ENERGETIKI"
Publication of WO2008008002A2 publication Critical patent/WO2008008002A2/en
Publication of WO2008008002A3 publication Critical patent/WO2008008002A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/56—Making machine elements screw-threaded elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)

Abstract

The invention relates to obtaining tubular products by mechanical chipless shaping, more specifically to forming an internal thread on the end section of a tubular billet, mainly on the pin-pipe end of a tubing string sub. The inventive method for producing internal thread on the end section of a tubular billet by press forming, consists in producing a tubular billet, the internal diameter of the end section of which is equal to the external diameter of a thread die, wherein the external diameter of the end section is determined according to a formula, and in carrying out the plastic deformation of the end section of the tubular billet by reducing it in one operation by means of a cone-shaped punch provided with a parallel bearing. The invention makes it possible to increase the reliability of a threaded connection for tubing strings and to simplify the thread production process.
PCT/RU2007/000361 2006-07-12 2007-07-04 Method for producing internal thread on the end section of a tubular billet Ceased WO2008008002A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2006124853 2006-07-12
RU2006124853/02A RU2323059C1 (en) 2006-07-12 2006-07-12 Inner thread forming method on end portion of tube blank

Publications (2)

Publication Number Publication Date
WO2008008002A2 WO2008008002A2 (en) 2008-01-17
WO2008008002A3 true WO2008008002A3 (en) 2008-03-06

Family

ID=38923704

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU2007/000361 Ceased WO2008008002A2 (en) 2006-07-12 2007-07-04 Method for producing internal thread on the end section of a tubular billet

Country Status (2)

Country Link
RU (1) RU2323059C1 (en)
WO (1) WO2008008002A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101574846B (en) * 2008-05-06 2013-02-13 鸿富锦精密工业（深圳）有限公司 Threaded mold

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1328483A (en) * 1970-01-22 1973-08-30 Creuzet R A Apparatus and process for shaping tubular metallic components
SU700268A1 (en) * 1978-02-27 1979-11-30 Ryabtsev Sergej T Method of making internal thread on a blank
SU1274832A1 (en) * 1984-12-24 1986-12-07 Специальное Конструкторское Бюро Часового И Камневого Станкостроения Method of producing internal thread
RU2259459C2 (en) * 2000-03-09 2005-08-27 Браш Веллмэн, Инк. Method for forming metal and shaped items, slotted strut for connecting drill pipe sections (variants) and method for its production

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3300029A1 (en) * 1983-01-03 1984-07-05 Wilhelm Fette Gmbh, 2053 Schwarzenbek METHOD FOR PRODUCING THREADS AND DEVICE FOR CARRYING OUT THE METHOD

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1328483A (en) * 1970-01-22 1973-08-30 Creuzet R A Apparatus and process for shaping tubular metallic components
SU700268A1 (en) * 1978-02-27 1979-11-30 Ryabtsev Sergej T Method of making internal thread on a blank
SU1274832A1 (en) * 1984-12-24 1986-12-07 Специальное Конструкторское Бюро Часового И Камневого Станкостроения Method of producing internal thread
RU2259459C2 (en) * 2000-03-09 2005-08-27 Браш Веллмэн, Инк. Method for forming metal and shaped items, slotted strut for connecting drill pipe sections (variants) and method for its production

Also Published As

Publication number Publication date
RU2323059C1 (en) 2008-04-27
WO2008008002A2 (en) 2008-01-17
RU2006124853A (en) 2008-01-20

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