2 results listed
In this study, many operations carried out by
traversing laser beam on 6 mm thick S960 steel plates for various
laser welding speeds and powers in order to determine influence
of welding speed and power on penetration, shape of fusion zone
and heat affected zone. A 16 kW Ytterbium fibre laser and pure
argon as shielding gas were used in this experimental study. Data
was evaluated and compared with some previous studies.
Furthermore, an empirical formula between heat input and weld
bead width was developed from results.
International Iron & Steel Symposium
UDCS
Ömer Ekinci
John Francis
Anıl İMAK
Zülküf BALALAN
The purpose in this study was to investigate the effects of keyhole laser welding parameters (laser beam power, laser welding speed, and heat input) on weld bead shape and integrity such as fusion zone and heat affected zone. Hence, butt-joint keyhole laser welding practices were conducted on S700 steel plates thickness of 13 mm by applying various laser beam power and welding speed with a 16 kW Ytterbium fibre laser and using pure argon as shielding gas in the Mechanical Engineering Laboratory of The University of Machester. The weld crosssections were examined under an optical microscope and widths of fusion zone, coarse grained heat affected zone and intercritical heat affected zone were measured and also defects that occurred during welding were determined based on laser beam power and welding speed. As a result, effects of laser beam power and laser welding speed on fusion zone width and heat affected zone width were plotted and results were compared with previous studies published.
International Iron & Steel Symposium
UDCS
Ömer Ekinci
John Francis
Zülküf BALALAN