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The modern automotive industry is increasingly
reducing the weight of vehicles by applying new technologies to
materials processing and lightweight materials, thus reducing the
fuel consumption. Advanced High-Strength Steels are good
potential for this purpose. In this context, Dual Phase steels of
grade 600 and 800 were investigated in this study. A tailor-welded
blank was produced by CO2 welding of DP600 and DP800 steels
in 1,8 mm and 1,5 mm thickness, respectively. The effects of laser
power and welding speed on mechanical properties of tailorwelded blanks were examined. It was found that laser power of 3
kW and welding speed of 4 m/s are the best combinations in terms
of yield and tensile strength, strain hardening exponent and
strength coefficients of the laser welded blanks.
International Iron & Steel Symposium
UDCS
Ekrem Öztürk
Hüseyin Arıkan
Serkan Toros
Mehmet Kayrıcı