低碳钢薄壁焊管液压胀形行为OA北大核心CSCDCSTPCD
Bulging Behavior of Thin-walled Welded Low Carbon Steel Tubes
为了研究焊管液压胀形过程的变形行为,在管材胀形性能测试系统上进行了不同长径比条件下低碳钢(STKM11A)薄壁焊管的胀形实验,获得了焊管的壁厚分布规律、胀形区轮廓形状、极限膨胀率和应变分布规律.结果表明:管材焊缝区的减薄率仅为2.4％～5.5％,等效应变仅为0.05～0.10,变形程度相对母材区较小,主要发生几何位置移动.环向壁厚的最薄点位于以焊缝为中心的对称两侧±30°位置处.随着胀形区长度增大,管材破裂压力、减薄量、极限膨胀率均发生减小,胀形…查看全部>>
In order to investigate the deformation behaviour of welded tubes during hydraulic bulging process,the hydraulic bulging tests of thin-walled welded low carbon steel tubes (STKM11A) were conducted on the tube hydroformability testing unit.The thickness distribution,profiles of bulging area and the strain distribution were all obtained.Results show that the thickness reduction of weld zone is just 2.4％-5.5％ while its effective strain is just 0.05-0.10,which i…查看全部>>
谢文才;苑世剑
哈尔滨工业大学材料科学与工程学院,哈尔滨150001一汽轿车股份有限公司,长春130012
矿业与冶金
薄壁焊管液压胀形长径比变形行为焊缝区
thin-walled welded tubeshydraulic bulgingratio of length to diameterdeformation behaviorweld zone
《材料工程》 2017 (1)
双层管内压弯曲成形新方法与变形规律研究
72-77,6
长江学者和创新团队发展计划(IRT1229)国家自然科学基金项目(51175111)
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