• norsk
    • English
  • English 
    • norsk
    • English
  • Login
View Item 
  •   Home
  • Øvrige samlinger
  • Publikasjoner fra CRIStin - NTNU
  • View Item
  •   Home
  • Øvrige samlinger
  • Publikasjoner fra CRIStin - NTNU
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Application of laser-arc hybrid welding of steel for low-temperature service

Bunaziv, Ivan; Akselsen, Odd Magne; Frostevarg, Jan; Kaplan, Alexander F.H.
Peer reviewed, Journal article
Accepted version
Thumbnail
View/Open
Bunaziv.pdf (1.055Mb)
URI
https://hdl.handle.net/11250/2654431
Date
2019
Metadata
Show full item record
Collections
  • Institutt for maskinteknikk og produksjon [2586]
  • Publikasjoner fra CRIStin - NTNU [20888]
Original version
The International Journal of Advanced Manufacturing Technology. 2019, 102 (5-8), 2601-2613.   10.1007/s00170-019-03304-1
Abstract
Laser-arc hybrid welding (LAHW) is more often used in shipbuilding and oil and gas industries in recent years. Its popularity arises due to many advantages compared to conventional arc welding processes. The laser beam source is used to achieve much higher penetration depths. By adding filler wire to the process area, by means of an arc source, the mechanical properties can be improved, e.g. higher toughness at low temperatures. Therefore, LAHW is a perspective process for low-temperature service. Applicability of LAHW is under concern due to process stability and mechanical properties related to heterogeneous filler wire distribution through the whole weld metal in deep and narrow joints. This can cause reduced mechanical properties in the weld root as well as problems with solidification cracking. The fast cooling rate in the root provides hard and brittle microconstituents lowering toughness at low temperatures. Numerical simulations and experimental observations showed that an increase in heat input from the laser beam is an effective way to reduce the cooling rate, which is also possible by applying preheating.
Publisher
Springer
Journal
The International Journal of Advanced Manufacturing Technology

Contact Us | Send Feedback

Privacy policy
DSpace software copyright © 2002-2019  DuraSpace

Service from  Unit
 

 

Browse

ArchiveCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsDocument TypesJournalsThis CollectionBy Issue DateAuthorsTitlesSubjectsDocument TypesJournals

My Account

Login

Statistics

View Usage Statistics

Contact Us | Send Feedback

Privacy policy
DSpace software copyright © 2002-2019  DuraSpace

Service from  Unit