- Tytuł:
- Microstructural Aspects of Twin-Spot Laser Welding of Dp-Hsla Steel Sheet Joints
- Autorzy:
-
Stano, S.
Grajcar, A.
Wilk, Z.
Różański, M.
Matter, P.
Morawiec, M. - Powiązania:
- https://bibliotekanauki.pl/articles/352264.pdf
- Data publikacji:
- 2016
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
DP steel
HSLA steel
weldability
overlap joint
twin-spot welding - Opis:
- The article presents the possibility of using twin-spot laser welding (i.e. laser welding with focusing a laser beam on two spots) for making overlap joints made of 0.8-1 mm thick HSLA and DP type high strength steel sheets. Joints were made using a Yb:YAG disc laser having a maximum power of 12 kW and a welding head by means of which it was possible to focus a laser beam on two spots, 0.6 mm and 1 mm away. The angle between focuses amounted to 0° or 90°, whereas the power distribution was 50%-50%. With settings as presented above it was possible to obtain high-quality overlap joints. The geometrical parameters of the joints were primarily affected by beams positions (in relation to each other) and, to a lesser degree, by the distance between the focuses. It was possible to obtain a 10% hardness reduction in the fusion zone of the DPHSLA steel joints if the angle between the beams amounted to 90°. The tests also involved microstructural examinations of individual zones of the joints.
- Źródło:
-
Archives of Metallurgy and Materials; 2016, 61, 2A; 731-740
1733-3490 - Pojawia się w:
- Archives of Metallurgy and Materials
- Dostawca treści:
- Biblioteka Nauki
Artykuł