?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=L&rft.au=Guo%2C+L&rft.aulast=Guo&rft.atitle=Quantifying+the+effects+of+gap+on+the+molten+pool+and+porosity+formation+in+laser+butt+welding&rft.volume=209&rft.title=International+Journal+of+Heat+and+Mass+Transfer&rft.date=1+August+2023&rft.issn=0017-9310&rft.genre=article