Title:
WELD BEAD MODELING METHOD, DEVICE AND SYSTEM FOR WIRE-ARC ADDITIVE MANUFACTURE
Document Type and Number:
WIPO Patent Application WO/2021/129671
Kind Code:
A1
Abstract:
Disclosed are a weld bead modeling method, device and system for wire-arc additive manufacture, which belong to the field of wire and arc additive manufacturing. According to the method, a dynamic parameter method is used, and different welding process parameters are used in the same welding bead in one wire-arc additive manufacture process, so that a weld bead, the shape of which is synchronously and dynamically changed according to the dynamic change of the welding process parameters, is obtained; and a line laser sensor is used for scanning to obtain shapes of segments of the processed weld bead, and the shape of each segment of weld bead is in one-to-one correspondence with the welding process parameter of the same segment and used as training data to train a neural network so as to obtain a weld bead modeling model that can obtain a corresponding weld bead shape according to input welding process parameters. According to the method, multiple sets of experimental data can be obtained by means of one processing experiment, sufficient training data is provided while reducing the number of experiments and experimental costs, and meanwhile, the technical problems of a traditional orthogonal experiment method and corresponding surface methodology requiring complex regression equation selection and parameter optimization are solved.
Inventors:
ZHANG HAI'OU (CN)
WANG GUILAN (CN)
TANG SHANGYONG (CN)
ZHOU SIYU (CN)
LI RUNSHENG (CN)
WANG GUILAN (CN)
TANG SHANGYONG (CN)
ZHOU SIYU (CN)
LI RUNSHENG (CN)
Application Number:
PCT/CN2020/138656
Publication Date:
July 01, 2021
Filing Date:
December 23, 2020
Export Citation:
Assignee:
UNIV HUAZHONG SCIENCE TECH (CN)
International Classes:
B23K9/095
Foreign References:
| CN110883403A | 2020-03-17 | |||
| CN108500498A | 2018-09-07 | |||
| JP2018192524A | 2018-12-06 | |||
| CN103551709A | 2014-02-05 | |||
| CN107649804A | 2018-02-02 | |||
| CN105478976A | 2016-04-13 | |||
| CN110472698A | 2019-11-19 | |||
| CN109158729A | 2019-01-08 |
Other References:
See also references of EP 3939734A4
Attorney, Agent or Firm:
BEIJING GAOWO LAW FIRM (CN)
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