Title:
LAMINATE MOLDING METHOD
Document Type and Number:
WIPO Patent Application WO/2021/235369
Kind Code:
A1
Abstract:
According to the present invention, the shape profile of an existing weld bead is measured by means of a non-contact type shape sensor provided integrally with a welding torch on a robot tip end shaft, midway through molding of a laminate molded object on the basis of a lamination trajectory plan. First geometric information relating to the bead shape is extracted from the shape profile and the target position of the welding torch, second geometric information corresponding to the first geometric information is extracted from the lamination trajectory plan, and an offset amount is calculated from the first geometric information and the second geometric information. In accordance with the offset amount, the lamination trajectory plan is updated by updating at least one of the bead height and the bead width of the weld bead determined by the lamination trajectory plan, and the welding conditions are updated in accordance with the result of updating the lamination trajectory plan.
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Inventors:
YOSHIKAWA AKINORI
HIDA MASATOSHI
HIDA MASATOSHI
Application Number:
PCT/JP2021/018515
Publication Date:
November 25, 2021
Filing Date:
May 14, 2021
Export Citation:
Assignee:
KOBE STEEL LTD (JP)
International Classes:
B23K9/04; B23K9/032; B23K9/095; B29C64/118; B29C64/393; B33Y10/00; B33Y50/02
Domestic Patent References:
| WO2019167274A1 | 2019-09-06 |
Foreign References:
| JP6797324B1 | 2020-12-09 | |||
| JP2020001059A | 2020-01-09 | |||
| JP2018126760A | 2018-08-16 | |||
| JP2015229169A | 2015-12-21 | |||
| JPH09182962A | 1997-07-15 | |||
| JPS6384776A | 1988-04-15 | |||
| JP2020088114A | 2020-06-04 |
Other References:
SHANBEN CHEN , YUMING ZHANG , ZHILI FENG: "Transactions on Intelligent Welding Manufacturing", vol. 1, 3 August 2017, SPRINGER, ISBN: 978-981-10-5355-9, article QINGLIN HAN , YONGZHE LI , GUANGJUN ZHANG: "Online Control of Deposited Geometry of Multi-layer Multi-bead Structure for Wire and Arc Additive Manufacturing", pages: 85 - 93, XP009532450
B M BEREZOVSKIIA V STIKAHIN: "Optimization of the formatin of a metal layer in arc deposition", WELDING INTERNATIONAL, vol. 5, no. 11, 1991, pages 888 - 891
See also references of EP 4137259A4
B M BEREZOVSKIIA V STIKAHIN: "Optimization of the formatin of a metal layer in arc deposition", WELDING INTERNATIONAL, vol. 5, no. 11, 1991, pages 888 - 891
See also references of EP 4137259A4
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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