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RU2020117640A - WELDING BATH STABILITY CONTROL METHOD - Google Patents

WELDING BATH STABILITY CONTROL METHOD Download PDF

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Publication number
RU2020117640A
RU2020117640A RU2020117640A RU2020117640A RU2020117640A RU 2020117640 A RU2020117640 A RU 2020117640A RU 2020117640 A RU2020117640 A RU 2020117640A RU 2020117640 A RU2020117640 A RU 2020117640A RU 2020117640 A RU2020117640 A RU 2020117640A
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RU
Russia
Prior art keywords
weld pool
laser
heat input
orbital
welding
Prior art date
Application number
RU2020117640A
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Russian (ru)
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RU2763068C2 (en
RU2020117640A3 (en
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
Priority to RU2020117640A priority Critical patent/RU2763068C2/en
Priority to PCT/RU2021/050093 priority patent/WO2021230769A1/en
Publication of RU2020117640A publication Critical patent/RU2020117640A/en
Publication of RU2020117640A3 publication Critical patent/RU2020117640A3/ru
Application granted granted Critical
Publication of RU2763068C2 publication Critical patent/RU2763068C2/en

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Classifications

    • 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
    • B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
    • B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
    • 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

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Laser Beam Processing (AREA)

Claims (17)

1. Способ управления устойчивостью сварочной ванны при орбитальной многопроходной лазерной сварке с одновалковым заполнением разделки свариваемых кромок неповоротных стыковых кольцевых соединений, включающий подачу присадочной проволоки и воздействие на нее непрерывным лазерным излучением, отличающийся тем, что лазерная сварка производится в узкощелевую разделку.1. A method for controlling the stability of the weld pool in orbital multi-pass laser welding with single-roll filling of the groove of the welded edges of fixed butt ring joints, including feeding the filler wire and exposing it to continuous laser radiation, characterized in that laser welding is performed in a narrow gap groove. 2. Способ по п. 1, отличающийся тем, что дефокусировка луча лазера выбирается из условия получения диаметра пятна сфокусированного лазерного излучения на свариваемой поверхности, не превышающей образования объема жидкой фазы сварочной ванны металла с массой больше критического значения (1)2. The method according to claim 1, characterized in that the defocusing of the laser beam is selected from the condition of obtaining the spot diameter of the focused laser radiation on the surface to be welded, which does not exceed the formation of the volume of the liquid phase of the weld pool of metal with a mass greater than the critical value (1)
Figure 00000001
.
Figure 00000001
... 3. Способ по п. 1, отличается тем, что скорость подачи присадочной проволоки заданного диаметра определяется из условия формирования массы жидкой фазы сварочной ванны меньше критического значения (2)3. The method according to claim 1, characterized in that the feed rate of the filler wire of a given diameter is determined from the condition of the formation of the mass of the liquid phase of the weld pool less than the critical value (2)
Figure 00000002
.
Figure 00000002
... 4. Способ по п. 1, отличающийся тем, что мощность луча лазера определяется из условия расплавления металла, образующего сварочную ванну, не превышающего массу критического значения при заданной скорости сварки (3)4. The method according to claim 1, characterized in that the power of the laser beam is determined from the condition of melting of the metal forming the weld pool, which does not exceed the critical mass at a given welding speed (3)
Figure 00000003
.
Figure 00000003
... 5. Способ по п. 1, отличающийся тем, что погонная энергия при лазерной сварке выберется из условий оптимального тепловложения в сварное соединение (4)5. The method according to claim 1, characterized in that the heat input during laser welding is selected from the conditions of optimal heat input into the welded joint (4)
Figure 00000004
,
Figure 00000004
, где q - погонная энергия сварки, Дж/см;where q is the heat input of welding, J / cm; qmin - минимальное значение погонной энергии, обеспечивающей заданную глубину проплавления, Дж/см;q min is the minimum value of the heat input providing the specified penetration depth, J / cm; qmax - погонная энергия, обеспечивающая минимальное теплосодержание сварочной ванны, Дж/см.q max - heat input providing the minimum heat content of the weld pool, J / cm. 6. Способ по п. 1, отличающийся тем, что значение скорости орбитальной лазерной сварки выбираются из условия времени существования сварочной ванны, минимизирующий ее перегрев и обеспечивающей необходимую глубину проплавления при заданной мощности лазерного излучения (5)6. The method according to claim 1, characterized in that the value of the orbital laser welding speed is selected from the condition of the weld pool lifetime, minimizing its overheating and providing the required penetration depth at a given laser power (5)
Figure 00000005
,
Figure 00000005
, где Vc - орбитальная скорость сварки;where V c - orbital welding speed; Vcmin - наименьшая орбитальная скорость сварки, минимизирующая перегрев сварочной ванны;V cmin - the lowest orbital welding speed, minimizing overheating of the weld pool; Vcmax - наибольшая орбитальная скорость сварки, обеспечивающая необходимую глубину проплавления.V cmax is the highest orbital welding speed providing the required penetration depth.
RU2020117640A 2020-05-15 2020-05-15 Method for controlling the stability of the welding bath RU2763068C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
RU2020117640A RU2763068C2 (en) 2020-05-15 2020-05-15 Method for controlling the stability of the welding bath
PCT/RU2021/050093 WO2021230769A1 (en) 2020-05-15 2021-04-08 Method for controlling stability of a weld puddle during orbital multilayer laser welding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2020117640A RU2763068C2 (en) 2020-05-15 2020-05-15 Method for controlling the stability of the welding bath

Publications (3)

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RU2020117640A true RU2020117640A (en) 2021-11-15
RU2020117640A3 RU2020117640A3 (en) 2021-11-15
RU2763068C2 RU2763068C2 (en) 2021-12-27

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WO (1) WO2021230769A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118162740B (en) * 2024-03-15 2024-11-19 华中科技大学 Pore inhibition process parameter optimization method and system in high-power laser shaping welding

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU17464U1 (en) * 2000-12-27 2001-04-10 Государственное унитарное предприятие "Научно-исследовательский и конструкторский институт энерготехники" SLOT CUT FOR MELTING WELDING
RU2175906C1 (en) * 2000-12-27 2001-11-20 Государственное унитарное предприятие "Научно-исследовательский и конструкторский институт энерготехники" Method for fusion welding along slit dressing
RU2233211C1 (en) * 2003-05-27 2004-07-27 Томский политехнический университет Welding method
DE10334446A1 (en) * 2003-07-29 2005-02-17 Orbitalservice Gmbh Orbital welding device for welding processes comprises welding heads which move along a workpiece by means of a drive and guiding unit
CA2546586C (en) * 2003-12-10 2010-03-02 Vietz Gmbh Orbital welding device for pipeline construction
DE102008029724B4 (en) * 2007-06-26 2010-09-30 V&M Deutschland Gmbh Method for joining thick-walled metallic pieces by means of welding
RU2502588C2 (en) * 2011-04-05 2013-12-27 Общество с ограниченной ответственностью Вятское машиностроительное предприятие "Лазерная техника и технологии" Method of pulse laser building up of metals
DE102012007563B3 (en) * 2012-04-10 2013-05-29 Salzgitter Mannesmann Line Pipe Gmbh Apparatus for joining the ends of steel pipes by orbital welding
RU2630327C1 (en) * 2016-07-27 2017-09-07 Публичное акционерное общество "Татнефть" имени В.Д. Шашина Method for connection and disconnection of pipes for bituminous oil extraction and device for laser welding and cutting when implementing method
RU2637035C1 (en) * 2017-02-06 2017-11-29 Публичное акционерное общество "Челябинский трубопрокатный завод" (ПАО "ЧТПЗ") Method of hybrid arc augmented laser welding of pipe longitudinal seam
RU2679858C1 (en) * 2018-02-19 2019-02-13 Публичное акционерное общество "Челябинский трубопрокатный завод" (ПАО "ЧТПЗ") Method of hybrid laser-arc welding of steel thick-walled structures

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WO2021230769A1 (en) 2021-11-18
RU2020117640A3 (en) 2021-11-15

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