Abstract
An edge joint 2+2 mm thickness of ordinary austenitic
stainless steel sheets was studied in all-position laser
welding; flat (PA), vertical-up (PF), vertical-down (PG)
and overhead (PE) positions. The penetration depth of the
weld was aimed to be at minimum 3.0 mm. The optimal width
of the weld was around 2 mm to guarantee adequate
tolerances for the weld, but to avoid excessive melting
of the edges of the sheets. In addition, the tolerance
for the misalignment of the laser beam was tested. The
welding procedure was tested with three laser welding
methods, including de-focused laser beam, laser beam
scanning and twin-spot laser beam welding in order to
develop and find means to deploy laser welding robustly
and reliably in practical applications. According to the
results of welding test trials, the used configuration of
twin-spot process seemed to be the most appropriate one
among the tested welding methods to guarantee all
position welding capability with constant suitable width
and depth of weld penetration.
| Original language | English |
|---|---|
| Title of host publication | Proceedings 14th NOLAMP Conference |
| Subtitle of host publication | The 14th Nordic Laser Materials Processing Conference |
| Place of Publication | Luleå, Sweden |
| Publisher | Luleå University of Technology |
| Pages | 47-58 |
| ISBN (Electronic) | 978-91-7439-689-8 |
| ISBN (Print) | 978-91-7439-688-1 |
| Publication status | Published - 2013 |
| MoE publication type | Not Eligible |
| Event | 14th Nordic Laser Materials Processing Conference, NOLAMP 14 - Gothenburg, Sweden Duration: 26 Aug 2013 → 28 Aug 2013 Conference number: 14 |
Conference
| Conference | 14th Nordic Laser Materials Processing Conference, NOLAMP 14 |
|---|---|
| Abbreviated title | NOLAMP 14 |
| Country | Sweden |
| City | Gothenburg |
| Period | 26/08/13 → 28/08/13 |
Keywords
- twin-spot
- laser beam scanning
- positional welding
- edge joint
- austenitic stainless steel
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Cite this
Karhu, M., Kujanpää, V., Pesari, M., & Levesy, B. (2013). Comparison of laser welding methods in position welding of edge joint of austenitic stainless steel. In Proceedings 14th NOLAMP Conference : The 14th Nordic Laser Materials Processing Conference (pp. 47-58). Luleå University of Technology. http://www.ltu.se/cms_fs/1.99082!/file/NOLAMP%2014%202013%20web.pdf