Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Advanced welding analysis methods applied to heavy section welding with a 15 kW fibre laser
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.ORCID iD: 0000-0002-3569-6795
2009 (English)In: Welding in the World, ISSN 0043-2288, E-ISSN 1878-6669, Vol. 53, no Special issue, 295-300 p.Article in journal (Refereed) Published
Abstract [en]

For butt joint welding of 8 mm and of 16 mm thick stainless steel a 15 kW fibre laser was applied, achieving full penetration for a welding speed of 7 m/min and 3 m/min, respectively. Optics with a focal length ranging from 500 mm to 150 mm focus the laser beam to a spot diameter of 0.65 to 0.2 mm with a focal depth of 18 to 4 mm and a cw-power density of 4 to 48 MW/cm2. Although narrow sound welds can be achieved, heavy spatter ejection along with underfill can take place at the top and root side, particularly for high power density and for low line energy. Various advanced analysis methods were developed. Spatter was observed by high speed imaging of the weld pool surface and of the keyhole. Quantitative evaluation of the drop size and flight trajectories enabled categorisation into four spatter modes, revealing favoured conditions for spatter suppression. Modelling subsequent to the drop evaluation provided additional analysis. An illustrative theoretical description and the formulation of a standard documentation methodology were developed. This aims to generalise and transfer knowledge as a guideline for spatter suppression in other laser welding situations.

Place, publisher, year, edition, pages
2009. Vol. 53, no Special issue, 295-300 p.
Keyword [en]
Laser welding, Materials science - Other processing/assembly
Keyword [sv]
Lasersvetsning, Teknisk materialvetenskap - Övrig bearbetning/sammanfogning
National Category
Manufacturing, Surface and Joining Technology
Research subject
Manufacturing Systems Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-11161Local ID: a1128af0-3b00-11df-a0f4-000ea68e967bOAI: oai:DiVA.org:ltu-11161DiVA: diva2:984110
Conference
International Conference on Welding of the IIW, International Institute of Welding : 12/07/2009 - 17/07/2009
Note
Validerad; 2010; Bibliografisk uppgift: 62. International Conference on Welding of the IIW, Singapore 12-17 July 2009; 20100329 (alka)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

Open Access in DiVA

fulltext(1056 kB)56 downloads
File information
File name FULLTEXT01.pdfFile size 1056 kBChecksum SHA-512
a3b53200bb0646d5c2b6218eb568f5d2ef2b7cc8205c893bc16d19a746dbabf08e9624745a31dc7eab0f11df543263f26a9537f015a55d14537be3c24258eec3
Type fulltextMimetype application/pdf

Search in DiVA

By author/editor
Kaplan, AlexanderWiklund, Greger
By organisation
Product and Production Development
In the same journal
Welding in the World
Manufacturing, Surface and Joining Technology

Search outside of DiVA

GoogleGoogle Scholar
Total: 56 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 38 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf