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Advanced high strength steel (AHSS) has been widely used in the automobile industry.The resistance spot welding performance of DP980 and Q&P980 steels was studied through comparing the two steels’welding current range,tensile shear strength (TSS),cross tension strength (CTS),weld spots’microhardness,etc.The following conclusions were achieved:It is easy for both DP980 and Q&P980 steels to get a nugget size bigger than 4 mm,they all have welding current ranges exceeding 2 kA and high weld strength.
Advanced high strength steel (AHSS) has been widely used in the automobile industry. The resistance spot welding performance of DP980 and Q & P980 steels was studied through comparing the two steels’ welding current range, tensile shear strength (TSS), cross tension strength (CTS ), weld spots’ microhardness, etc.The followingations were achieved: It is easy for both DP980 and Q & P980 steels to get a nugget size bigger than 4 mm, they all have welding current currents exceed 2 kA and high weld strength.