| 铝合金FSW过程中搅拌针前缘金属周期性流动行为研究 |
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| 引用本文： | 黄甫,熊江涛,李京龙,张赋升,李瑞迪.铝合金FSW过程中搅拌针前缘金属周期性流动行为研究[J].航空材料学报,2012,32(1):41-44. |
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| 作者姓名： | 黄甫 熊江涛 李京龙 张赋升 李瑞迪 |
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| 作者单位： | 1. 西北工业大学凝固技术国家重点实验室,西安710072;西北工业大学陕西省摩擦焊接重点实验室,西安710072
2. 西北工业大学陕西省摩擦焊接重点实验室,西安,710072 |
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| 基金项目： | 西北工业大学凝固国家重点实验室基金，国家自然科学基金 |
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| 摘 要： | 利用高速摄像技术研究了搅拌摩擦焊过程中不同工艺参数条件下搅拌工具与被焊材料之间的相对运动,并结合焊核区金属组织形貌对搅拌针前缘金属流动行为进行分析.结果表明在搅拌摩擦焊接过程中搅拌工具与被焊接板材之间的相对运动存在着明显的周期性现象.并且搅拌针对其前缘金属作用的一个周期可分为两个阶段即平台阶段和进给阶段.在进给阶段前缘金属流动方式主要以整体流动的方式进行.
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| 关 键 词： | 搅拌摩擦焊 金属流动 周期性 接头组织形貌 |
Study of Periodical Flow Behavior of Metal Front Stir Pine during the Friction Stir Welding of Aluminum Alloy |
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| HUANG Fu
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XIONG Jiang-tao
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LI Jing-long
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ZHANG Fu-sheng
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LI Rui-di.Study of Periodical Flow Behavior of Metal Front Stir Pine during the Friction Stir Welding of Aluminum Alloy[J].Journal of Aeronautical Materials,2012,32(1):41-44. |
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| Authors: | HUANG Fu XIONG Jiang-tao LI Jing-long ZHANG Fu-sheng LI Rui-di |
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| Institution: | 1.The State Key Laboratory of Solidification Processing,Northwestern Polytechnical University,Xi’an 710072,China;2.Shaanxi Key Laboratory of Friction Welding Technologies,Northwestern Polytechnical University,Xi’an 710072China) |
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| Abstract: | Studied the relative motion between friction stir and welding board of different parameters through high-speed photography,and also analyzed the metal flow during friction stir welding combined appearance of microstructure with transverse cross section and board.It could be divided into two stages which were platform stage and traverse stage in one periodical which equaled to the time that stir rotated one circle spent.In platform stage the function of stir pin was heating the front metal.As the result of this function formed specified thickness layer of visco-plastic metal.In feed stage the visco-plastic metal.In feed stage the visco-plastic front metal was carried integrally by stir pin. |
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| Keywords: | friction stir welding metal flow periodical microstructure of welded joint |
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