Matches in SemOpenAlex for { <https://semopenalex.org/work/W2077452190> ?p ?o ?g. }
Showing items 1 to 87 of
87
with 100 items per page.
- W2077452190 endingPage "264" @default.
- W2077452190 startingPage "259" @default.
- W2077452190 abstract "High power laser is a promising tool to weld heavy section plates. One of the major problems, in this case, is formation of some weld defects such as porosity and hot cracking. A final goal of a series of our investigations is to develop defect free laser welding process with the depth of more than 20mm. In the present study, characteristics of deep penetration welding have been investigated using a 20kW CO2 laser facility. Deep penetration of more than 20nm can be attained even at a high welding speed 16.7mm/s. However, porosities are always observed in the longitudinal sections, more significantly for upper focusing conditions. The porosity is not observed, on the other hand, with nitrogen shielding, although large plasma periodically formed during welding and leads to significant reduction in the penetration depth. Pulse modulation of the laser power at the same frequency and duty of the periodical plasma formation can effectively decrease the porosity formation even with helium shielding. This suggests the possibility of porosity prevention by laser power modulation. Dissolution of nitrogen in the molten pool has also good effect to prevent the porosity with nitrogen shielding." @default.
- W2077452190 created "2016-06-24" @default.
- W2077452190 creator A5035818497 @default.
- W2077452190 creator A5056774902 @default.
- W2077452190 creator A5066762891 @default.
- W2077452190 creator A5091288894 @default.
- W2077452190 date "2005-01-01" @default.
- W2077452190 modified "2023-10-16" @default.
- W2077452190 title "Characteristics of High Power CO2 Laser Welding and Porosity Suppression Mechanism by Nitrogen Shield-Study on High Power Laser Welding Phenomena-(Report 1)-" @default.
- W2077452190 cites W1973969365 @default.
- W2077452190 doi "https://doi.org/10.2207/qjjws.23.259" @default.
- W2077452190 hasPublicationYear "2005" @default.
- W2077452190 type Work @default.
- W2077452190 sameAs 2077452190 @default.
- W2077452190 citedByCount "6" @default.
- W2077452190 countsByYear W20774521902013 @default.
- W2077452190 crossrefType "journal-article" @default.
- W2077452190 hasAuthorship W2077452190A5035818497 @default.
- W2077452190 hasAuthorship W2077452190A5056774902 @default.
- W2077452190 hasAuthorship W2077452190A5066762891 @default.
- W2077452190 hasAuthorship W2077452190A5091288894 @default.
- W2077452190 hasBestOaLocation W20774521901 @default.
- W2077452190 hasConcept C120665830 @default.
- W2077452190 hasConcept C121332964 @default.
- W2077452190 hasConcept C127313418 @default.
- W2077452190 hasConcept C138081364 @default.
- W2077452190 hasConcept C146868986 @default.
- W2077452190 hasConcept C147789679 @default.
- W2077452190 hasConcept C159985019 @default.
- W2077452190 hasConcept C177250429 @default.
- W2077452190 hasConcept C185592680 @default.
- W2077452190 hasConcept C191897082 @default.
- W2077452190 hasConcept C192562407 @default.
- W2077452190 hasConcept C19474535 @default.
- W2077452190 hasConcept C200649887 @default.
- W2077452190 hasConcept C20480867 @default.
- W2077452190 hasConcept C2776143536 @default.
- W2077452190 hasConcept C3450827 @default.
- W2077452190 hasConcept C44273521 @default.
- W2077452190 hasConcept C520434653 @default.
- W2077452190 hasConcept C5900021 @default.
- W2077452190 hasConcept C6648577 @default.
- W2077452190 hasConcept C88380143 @default.
- W2077452190 hasConcept C89344249 @default.
- W2077452190 hasConceptScore W2077452190C120665830 @default.
- W2077452190 hasConceptScore W2077452190C121332964 @default.
- W2077452190 hasConceptScore W2077452190C127313418 @default.
- W2077452190 hasConceptScore W2077452190C138081364 @default.
- W2077452190 hasConceptScore W2077452190C146868986 @default.
- W2077452190 hasConceptScore W2077452190C147789679 @default.
- W2077452190 hasConceptScore W2077452190C159985019 @default.
- W2077452190 hasConceptScore W2077452190C177250429 @default.
- W2077452190 hasConceptScore W2077452190C185592680 @default.
- W2077452190 hasConceptScore W2077452190C191897082 @default.
- W2077452190 hasConceptScore W2077452190C192562407 @default.
- W2077452190 hasConceptScore W2077452190C19474535 @default.
- W2077452190 hasConceptScore W2077452190C200649887 @default.
- W2077452190 hasConceptScore W2077452190C20480867 @default.
- W2077452190 hasConceptScore W2077452190C2776143536 @default.
- W2077452190 hasConceptScore W2077452190C3450827 @default.
- W2077452190 hasConceptScore W2077452190C44273521 @default.
- W2077452190 hasConceptScore W2077452190C520434653 @default.
- W2077452190 hasConceptScore W2077452190C5900021 @default.
- W2077452190 hasConceptScore W2077452190C6648577 @default.
- W2077452190 hasConceptScore W2077452190C88380143 @default.
- W2077452190 hasConceptScore W2077452190C89344249 @default.
- W2077452190 hasIssue "2" @default.
- W2077452190 hasLocation W20774521901 @default.
- W2077452190 hasOpenAccess W2077452190 @default.
- W2077452190 hasPrimaryLocation W20774521901 @default.
- W2077452190 hasRelatedWork W2055938489 @default.
- W2077452190 hasRelatedWork W2069522261 @default.
- W2077452190 hasRelatedWork W2077085624 @default.
- W2077452190 hasRelatedWork W2186390517 @default.
- W2077452190 hasRelatedWork W2357400517 @default.
- W2077452190 hasRelatedWork W2690026152 @default.
- W2077452190 hasRelatedWork W2896702183 @default.
- W2077452190 hasRelatedWork W2986269887 @default.
- W2077452190 hasRelatedWork W3164123847 @default.
- W2077452190 hasRelatedWork W3197485671 @default.
- W2077452190 hasVolume "23" @default.
- W2077452190 isParatext "false" @default.
- W2077452190 isRetracted "false" @default.
- W2077452190 magId "2077452190" @default.
- W2077452190 workType "article" @default.