公开(公告)号：US20200232592A1

公开(公告)日：2020-07-23

申请号：US16739755

申请日：2020-01-10

Applicant: ExxonMobil Research and Engineering Company

Inventor： Ning Ma ,  Jevan Furmanski ,  Neeraj S. Thirumalai ,  Jeffrey M. Grenda

IPC: F16L58/08 ,  B29C64/268 ,  B29C64/153 ,  B23K26/20 ,  B23K26/70

Abstract: A method for repairing defects on a structure is disclosed herein. The method comprises use of an additive manufacturing head to inject a flowable filler material into the defect. In certain embodiments, the additive manufacturing head can be a laser metal deposition (LMD) head comprising a powder nozzle and a laser. The structure can be, e.g., a pipeline or a pressure vessel used in petroleum, petrochemical, or natural gas applications.