2 results listed
In this study, the DP600 and DP1000 steel sheets
were joined with the pulsed Nd: YAG (Neodymium-doped
Yttrium Aluminum Garnet (Y3Al5O12)) laser welding and
mechanical properties of the welds were investigated. Performing
dissimilar weld of DP steel sheets is an inevitable demand in the
modern automotive industry. In the laser welding process the
selection of the welding parameters affects the final properties of
the welds substantially. So, the main objective of this study was
determining the influence of pulse frequency on the mechanical
properties of pulsed Nd:YAG laser welded DP600-DP1000 steel
sheet joints. So, dissimilar (DP600-DP1000) steel sheets were
welded in the flat position with the butt joint. In order to
evaluate the welding performance, macrostructural studies and
mechanical tests were performed and experiments carried out in
this context including optical microscope examinations, tensile
tests and Vickers microhardness measurements.
International Iron & Steel Symposium
UDCS
Oguz Tuncel
Hakan Aydin
Sukriye Cetin
In this study, it was aimed to determine the effect of
welding current on tensile shear load, elongation, nugget
diameter and indentation in triple welded FEP05 and FE 600 DP
steel sheets by electrical resistance spot welding. In the triple
welding process, FE 600 DP sheet was in the middle and FEP05
sheets were on the edges. Electric resistance spot welding
operations were carried out successfully. When the welding
current values were increased from 7 kA to 10 kA, the tensile
shear load increased while the overall elongation decreased. With
the increase of the welding current, the percentage of indentation
showed an increase close to the linear. The nugget diameter
increased with the welding current up to 9 kA, but the welding
current decreased over 9 kA.
International Iron & Steel Symposium
UDCS
Oguz Tuncel
Hakan Aydin
Levent Selova