Research on Resistance Spot Welding of DP980 Dual Phase Steel

Abstract:

The process parameters and quality of resistance spot welding for DP980 dual phase steel were studied through the orthogonal experiment method, and the influence of welding current, welding time and electrode force on the strength of welding joint has been discussed. The results show that the welding current has the greatest influence on the quality of welding joint for DP980 dual phase steel, and it needs relatively lower welding current for the DP980 dual phase steel as it has high resistivity, and appropriate increasing of electrode force is a feasible way to avoid the defect of shrinkage and it improves the joint strength.

• Periodical: Advanced Materials Research (Volumes 860-863)
• Pages: 780-783
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.860-863.780
• Online since: December 2013
• Authors: Qiao Bo Feng*, Yun Feng Zhu, He Xin Zhao
• Keywords: AHSS, Joint Strength, Microstructure, Welding Heat

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