WO2021167498A1 - Procédé de soudure laser de raccords de conduits - Google Patents

Procédé de soudure laser de raccords de conduits Download PDF

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Publication number
WO2021167498A1
WO2021167498A1 PCT/RU2021/050023 RU2021050023W WO2021167498A1 WO 2021167498 A1 WO2021167498 A1 WO 2021167498A1 RU 2021050023 W RU2021050023 W RU 2021050023W WO 2021167498 A1 WO2021167498 A1 WO 2021167498A1
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WO
WIPO (PCT)
Prior art keywords
welding
welded
laser
pipelines
edges
Prior art date
Application number
PCT/RU2021/050023
Other languages
English (en)
Russian (ru)
Inventor
Ольга Павловна МОРОЗОВА
Original Assignee
Ольга Павловна МОРОЗОВА
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 Ольга Павловна МОРОЗОВА filed Critical Ольга Павловна МОРОЗОВА
Publication of WO2021167498A1 publication Critical patent/WO2021167498A1/fr

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    • 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
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B23K26/082—Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head
    • 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
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/21—Bonding by welding
    • B23K26/24—Seam welding
    • B23K26/28—Seam welding of curved planar seams
    • B23K26/282—Seam welding of curved planar seams of tube sections
    • 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
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/70—Auxiliary operations or equipment
    • 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
    • B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby

Definitions

  • the invention relates to the field of welding and, in particular, external automatic multi-pass orbital laser welding of non-rotatable circular butt joints of pipelines, including performing a root weld in deep penetration mode, a corrective pass ("hot” pass), filling, corrective and facing-corrective layers seam.
  • Laser welding technologies have certain technical and economic advantages over arc welding, in particular, laser welding can be carried out both in the mode of thermal conductivity (conduction) and in the mode of deep (channel) penetration [Katayama S. Handbook of laser welding. - M .: Tekhnosfera, 2015 .-- 704 p .; Grigoryants A.G., I.N. Shiganov, A.I. Misyurov Technological processes of laser processing: [Electronic resource] / AG Grigoryants, IN Shiganov, AI Misyurov; ed. A.G. Grigoryants. - M .: Publishing house of MSTU im. N. E. Bauman, 2006. - 664 p.].
  • a significant advantage of the invention is that, with only a single welding cycle, it is possible to connect two pipe ends in the field in an autonomous mode.
  • One welding optical head is installed on the orbital trolley.
  • a block for heating the wire is installed in front of the wire feeder (wire feeder).
  • the device contains at least one MSG welding head installed indirectly or directly on the orbital trolley with all service systems.
  • magnetization affects the process of forming a bead in automatic arc welding.
  • the height of the seam decreases, the depth of penetration increases, undercuts are formed along the edges of the seam, and the effect of spattering of the weld pool is enhanced.
  • one (two or more) welding torches can be used for welding, moving around the circumference of the pipe using gearing.
  • the following welding technologies can be used for welding: metal electrode welding in a gas atmosphere (GMAW), welding with non-consumable tungsten electrode (GTAW), mechanized or automatic flux-cored arc welding (FCAW), laser beam welding.
  • GMAW gas atmosphere
  • GTAW non-consumable tungsten electrode
  • FCAW mechanized or automatic flux-cored arc welding
  • One of the problems when welding high-strength pipe steels is the formation of cold cracks in the near-weld portion of the heat-affected zone.
  • devices are used for preliminary or concomitant heating of the welded edges and thermal cycling of the welded joint using a device for scanning the laser beam.
  • Welding is carried out simultaneously with two optical welding heads located on movable carriages and moving along the pipe circumference with the help of gearing along the band.
  • One of the main criteria determining a high-quality welded joint made of high-strength pipe steels is to obtain the mechanical properties of the welded joint equal in strength with the base metal and the absence of defects.
  • the objective of the present invention is to provide a method for external multi-pass automatic laser welding of fixed circular butt joints from high-strength pipe steels to obtain high-quality welded joints with high economic efficiency.
  • the technical result that can be obtained with the implementation of the present invention is to obtain a defect-free welded joint of equal strength with the base metal, to reduce labor costs during mechanical cutting of welded edges, to significantly reduce the cost of consumable welding materials (welding wire, shielding gases) and to increase the rate of pipeline construction ...
  • laser welding is performed in a narrow gap groove.
  • Narrow-gap groove allows to realize single-layer single-roll filling of the welded edges, which significantly reduces the technological cycle of the welding process.
  • Narrow gap groove of the welded edges excludes the use of arc welding methods due to the physical effect of magnetic "blowing" and significant geometric dimensions of the welding torches.
  • scanning the laser beam excludes the formation of defects in the seam: discontinuities, pores.
  • the edges to be welded are heated by an inductor, and the laser beam oscillates during the formation of the root, filling, facing and facing-correcting layers of the seam with a given amplitude, frequency and beam sweep configuration.
  • Two fiber ytterbium lasers of the LS series were used for welding, each of which provided an output power of up to 10 kW.
  • the proposed method for external automatic one-sided multi-pass single-roll laser welding of non-rotating circular butt joints of pipelines has shown high technological reproducibility of the welding process, ensuring high quality of the welded joint and it can be used for welding in many industries.
  • the claimed invention meets the criterion of industrial applicability, since it can be manufactured using known technical means.
  • Gainand Y. et al . Laser orbital welding applied to offshore pipe line construction. Pipeline technology Vol. II Elsevier Science 2000 p. 327-343.
  • Patent application 2011 - US 20110186615 discloses a patent application of the present disclosure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Laser Beam Processing (AREA)

Abstract

La présente invention se rapporte au domaine de la soudure. L'invention peut être utilisée pour la soudure laser automatique à passes multiples externe de connexions fixes de raccords de conduits. Cette invention permet d'obtenir des raccords soudés sans défauts, et de résistance uniforme du métal principal sur des aciers pour tubes. L'invention est mise en oeuvre par une découpe en fente fine des bords à souder, par un préchauffage préalable et concomitant des bords à souder, et en utilisant une technique d'oscillation de la lumière laser. La présente peut être utilisée dans la production par soudure dans diverses branches de l'industrie.
PCT/RU2021/050023 2020-02-19 2021-02-01 Procédé de soudure laser de raccords de conduits WO2021167498A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2020107524 2020-02-19
RU2020107524 2020-02-19

Publications (1)

Publication Number Publication Date
WO2021167498A1 true WO2021167498A1 (fr) 2021-08-26

Family

ID=77391056

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU2021/050023 WO2021167498A1 (fr) 2020-02-19 2021-02-01 Procédé de soudure laser de raccords de conduits

Country Status (1)

Country Link
WO (1) WO2021167498A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08174249A (ja) * 1994-12-20 1996-07-09 Nkk Corp 溶接鋼管の製造方法
KR20010005796A (ko) * 1997-03-28 2001-01-15 아사무라 타카싯 레이저 빔에 의한 열간 압연 강재의 맞대기 용접 방법 및 그것을 위한 장치
RU2355539C2 (ru) * 2003-12-10 2009-05-20 Фиц Гмбх Орбитальное сварочное устройство для строительства трубопроводов
RU2679858C1 (ru) * 2018-02-19 2019-02-13 Публичное акционерное общество "Челябинский трубопрокатный завод" (ПАО "ЧТПЗ") Способ гибридной лазерно-дуговой сварки стальных толстостенных конструкций

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08174249A (ja) * 1994-12-20 1996-07-09 Nkk Corp 溶接鋼管の製造方法
KR20010005796A (ko) * 1997-03-28 2001-01-15 아사무라 타카싯 레이저 빔에 의한 열간 압연 강재의 맞대기 용접 방법 및 그것을 위한 장치
RU2355539C2 (ru) * 2003-12-10 2009-05-20 Фиц Гмбх Орбитальное сварочное устройство для строительства трубопроводов
RU2679858C1 (ru) * 2018-02-19 2019-02-13 Публичное акционерное общество "Челябинский трубопрокатный завод" (ПАО "ЧТПЗ") Способ гибридной лазерно-дуговой сварки стальных толстостенных конструкций

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