Title:
OSCILLATING LASER WELDING EQUIVALENT HEAT SOURCE MODELING METHOD AND OSCILLATING LASER WELDING SIMULATION METHOD
Document Type and Number:
WIPO Patent Application WO/2024/087524
Kind Code:
A1
Abstract:
Disclosed in the present invention is an oscillating laser welding equivalent heat source modeling method, comprising: constructing energy distribution cloud maps of an actual laser welding heat source under different oscillating trajectories, oscillating frequencies and oscillating amplitudes; extracting an energy distribution curve along the direction of the center position of the heat source, and acquiring spatial position information of multiple target points of interest; constructing an equivalent Gaussian heat source model for each target point of interest; and performing matching degree verification on the Gaussian heat source models and the actual laser welding heat source, and using the Gaussian heat source model that passes the verification as an equivalent heat source model of the actual laser welding heat source. The present invention further provides an oscillating laser welding simulation method, which comprises constructing an equivalent heat source model by using the modeling method, and performing welding simulation on the basis of the equivalent heat source model. The present invention can greatly shorten a heat source check period during oscillating laser welding simulation, and improve the simulation efficiency of the whole oscillating laser welding.
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Inventors:
PENG GENCHEN (CN)
LU CHANGYU (CN)
MENG ZHENGYU (CN)
HOU QINGLEI (CN)
LU CHANGYU (CN)
MENG ZHENGYU (CN)
HOU QINGLEI (CN)
Application Number:
PCT/CN2023/086780
Publication Date:
May 02, 2024
Filing Date:
April 07, 2023
Export Citation:
Assignee:
JIANGSU XCMG CONSTRUCTION MACHINERY RES INSTITUTE LTD (CN)
XUZHOU XCMG ENVIRONMENT TECH CO LTD (CN)
XUZHOU XCMG ENVIRONMENT TECH CO LTD (CN)
International Classes:
G06F30/20; B23K26/24
Domestic Patent References:
| WO2022161657A1 | 2022-08-04 |
Foreign References:
| CN115630512A | 2023-01-20 | |||
| CN112883623A | 2021-06-01 | |||
| CN103049623A | 2013-04-17 |
Other References:
JIANG ZHENGUO: "Research on Laser Welding Quality Optimization of Medium and Thick Plates based on Energy Distribution Control", SCIENCE-ENGINEERING (A), CHINA DOCTORAL DISSERTATIONS FULL-TEXT DATABASE, no. 01, 15 January 2021 (2021-01-15), ISSN: 1674-022X
LIN CHEN: "Effects of laser oscillating frequency on energy distribution, molten pool morphology and grain structure of AA6061/AA5182 aluminum alloys lap welding", JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY, ELSEVIER EDITORA LTDA, BR, vol. 15, 1 November 2021 (2021-11-01), BR , pages 3133 - 3148, XP093163231, ISSN: 2238-7854, DOI: 10.1016/j.jmrt.2021.09.141
LIN CHEN: "Effects of laser oscillating frequency on energy distribution, molten pool morphology and grain structure of AA6061/AA5182 aluminum alloys lap welding", JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY, ELSEVIER EDITORA LTDA, BR, vol. 15, 1 November 2021 (2021-11-01), BR , pages 3133 - 3148, XP093163231, ISSN: 2238-7854, DOI: 10.1016/j.jmrt.2021.09.141
Attorney, Agent or Firm:
NANJING ZONGHENG INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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