文章基本信息

标题：レーザ・アークハイブリッド溶接の一般商船建造工程への導入に向けた諸検討
本地全文：下载
作者：後藤浩二 ; 上村崇杜 ; 津村秀一等
期刊名称：日本船舶海洋工学会論文集
印刷版ISSN：1880-3717
电子版ISSN：1881-1760
出版年度：2021
卷号：32
页码：231-246
DOI：10.2534/jjasnaoe.32.231
出版社：社団法人日本船舶海洋工学会
摘要：The application of advanced welding technologies is important for improving the efficiency of hull construction processes and reducing production costs. Laser-arc hybrid welding (LAHW) technology, which combines the advantages of laser and normal arc welding, is of high quality and is expected to improve productivity. However, there are some challenges in applying LAHW to the hull construction stage of general merchant ships, because the thickness of the main structural members is thicker than that of passenger ships and high-speed ships. The present study focused on investigating the following key aspects for involving LAHW in construction stage of commercial vessels, and useful knowledge was obtained. (1) Suitable welding conditions to fabricate the full-penetration tee joint by one-side single-pass welding, (2) Influence of the weld groove cutting process method, (3) Influence of retained primer and oxide film on joint quality, (4) Confirmation in the production by prototyping with long welding length, and (5) Improvement of welding quality by applying the rare earth metal bearing weld wire.