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汽车用800MPa级双相钢点焊工艺性能研究
Research on Resistance Spot Weldability of 800MPa Grade Dual-phase Steel
【摘要】 在对汽车用国产800MPa级双相钢的电阻点焊工艺性能进行深入研究中,对不同工艺条件下点焊接头显微组织、焊接接头力学性能以及断口形貌等进行了分析。结果表明:该实验条件下,最佳点焊工艺参数为:焊接电流9kA,焊接时间12周波,焊接压力3.0kN;双相钢点焊接头的断裂方式以韧性断裂为主。
【Abstract】 The resistance spot weldability of DP800MPa-level and the metallographic morphology microstructure and mechanical properties of spot welded joints were studied.The results show that,the optimum process parameter is welding current 9 kA,12 frequency welding time,weld pressure 3.0 kN.The fracture model of dual phase steel spot welded joint is dominated as ductile fracture.
- 【文献出处】 热加工工艺 ,Hot Working Technology , 编辑部邮箱 ,2011年09期
- 【分类号】TG453.9
- 【被引频次】5
- 【下载频次】232