Title:
CONTROL OF THERMAL CYCLE OF BUTT JOINT LASER WELDING
Document Type and Number:
WIPO Patent Application WO/2021/230768
Kind Code:
A1
Abstract:
The invention relates to the field of welding and, more specifically, to control of a thermal welding cycle during multilayer laser welding of fixed annular butt joints in a narrow-gap preparation with a surfacing wire. A method for control of a thermal cycle of multiple-pass laser welding of annular butt joints, comprising feeding in a filler wire and subjecting the latter to continuous laser radiation, is characterized in that the multilayer laser welding is carried out in a narrow-gap preparation. The technical result which can be produced when carrying out the present invention consists in more accurately controlling thermal welding cycles for producing an advantageous structural state of a joint and of a heat-affected near-weld area of a weld joint, for reducing the quantity of solidification structures and for achieving the desired values of hardness and impact toughness.
Inventors:
MOROZOVA OL'GA PAVLOVNA (RU)
Application Number:
PCT/RU2021/050092
Publication Date:
November 18, 2021
Filing Date:
April 08, 2021
Export Citation:
Assignee:
MOROZOVA OLGA PAVLOVNA (RU)
International Classes:
B23K26/282; B23K26/082; B23K26/70; B23K31/02; B23K33/00; B23K101/10
Foreign References:
| RU2355539C2 | 2009-05-20 | |||
| RU2679858C1 | 2019-02-13 | |||
| KR20010005796A | 2001-01-15 | |||
| RU2185214C2 | 2002-07-20 | |||
| DE10334446A1 | 2005-02-17 |
Attorney, Agent or Firm:
PANTYUSHINA, Ekaterina Nikolaevna (RU)
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