Abstract
Resistance spot welding of advanced high strength dual phase steel, with tensile strength of 980 MPa at elongation of 10 %, was experimentally investigated and numerically simulated. The FEM simulation was performed using SYSWELD in order to calculate the thermal and residual stress fields for research of effect of RSW fracture behavior. Thermo-mechanical properties of the material were modified from DP600 data to experimentally determined DP1000 from hot tensile tests made with a Gleeble system. The predefined G-electrode shape was changed to the F16-electrode used in practice. Effect of welding current on nugget size and residual stresses is examined for lower, medium, and upper currents inside welding range. Simulation nugget and heat-affected zone of the 2D model show a correlation if compared to experimental results from metallography of RSW cross sections. Residual stresses are measured using the drill hole method, but they differed from simulated stresses. Possible reasons are evaluated and discussed.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
