LI Yang, LUO Zhen, ZHENG Bofang, et al. Progress of global welding research progress based on big data(2014~2018)[J]. Eletric Welding Machine2021, 51(1): 1-16.DOI: 10.7512/j.issn.1001-2303.2021.01.01.
big data and visualization technologies were used to establishthe knowledge maps of research institutions
researchers
and research hotspots in the global welding field based on the papers indexed by the Web of Science(Wo S) database and the CNKI database
patents indexed by the Derwent Innovation Index(DII) database and the CNKI China Patent database
and projects funded by the National Natural Science Foundation of China from 2014 ~2018. The findings of this study pointed out that research institutions and scholars from China have contributed the most to the papers and patentsin global welding field. "Joint-microstructure-mechanical properties" is the main line of research in the global welding field. The study also found that compared with Japan
the United States and other welding manufacturing power countries
China is still weak in the transfer and transformation of science and technology achievements
and also the innovation ability of Chinese enterprises.