| 振动调制工艺下焊接接头力学性能试验研究 |
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| 引用本文： | 卢庆华,饶德林,朱政强,陈立功,倪纯珍. 振动调制工艺下焊接接头力学性能试验研究[J]. 机械工程学报, 2006, 0(Z1) |
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| 作者姓名： | 卢庆华 饶德林 朱政强 陈立功 倪纯珍 |
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| 作者单位： | 上海交通大学材料科学与工程学院，上海交通大学材料科学与工程学院，上海交通大学材料科学与工程学院，上海交通大学材料科学与工程学院，上海交通大学材料科学与工程学院 上海 200030，上海 200030，上海 200030，上海 200030，上海 200030 |
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| 摘 要： | 在高炉用钢厚板电渣焊中应用振动调制工艺。接头金相显示,附加振动后,焊接接头晶粒细化明显。研究三种振动加速度(0g、0．3g和0．6g)下焊接接头的残余应力、拉伸性能、侧弯性能和冲击性能。结果表明:合理的振动调制工艺可以有效的降低残余应力并改善焊接接头的综合性能。其中,0．6g振动下的侧弯性能合格率达到 100％。通过对两种振动加速度(0．3g和0．6g)下焊缝冲击性能的对比,讨论了冲击性能变化的机理,并用内耗试验说明焊缝金属内耗的SKK(Snoek-Ke-Koster)峰值与焊缝冲击韧度存在良好的对应关系。
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| 关 键 词： | 振动调制 侧弯 冲击值 内耗 |
EXPERIMENTAL STUDY ON MECHANICAL PROPERTIES OF WELDED JOINT USING VIBRATORY CONDITIONING TECHNOLOGY |
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| LU Qinghua RAO Delin ZHU Zhengqiang CHENLigong NIChunzhen. EXPERIMENTAL STUDY ON MECHANICAL PROPERTIES OF WELDED JOINT USING VIBRATORY CONDITIONING TECHNOLOGY[J]. Chinese Journal of Mechanical Engineering, 2006, 0(Z1) |
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| Authors: | LU Qinghua RAO Delin ZHU Zhengqiang CHENLigong NIChunzhen |
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| Abstract: | The vibratory welding conditioning process is investigated in the electroslag welding of blast furnace steel. The metallographs show that a refined joint is produced. The residual stress, side bend property, tension and impact tests are carried out in different vibratory conditions (0g, 0.3g and 0.6g). The results of the test have fully proved that vibratory conditioning technology can effectively reduce residual stress and improve the comprehensive properties of weld joints. Especially, in the 0.6g vibratory condition, the qualification rate of side bend performance is up to 100%. The impact values at two vibratory accelerations (0.3g and 0.6g) are compared and the changing mechanism is discussed. The internal friction test indicates that the internal friction SKK (Snoek-Ke-Koster) peak of the weld metal has good correlation with the impact value of the weld. |
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| Keywords: | Vibratory conditioning Side bend Impact value Internal friction |
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