韩世伟,罗展,蒋晓,等.螺纹搅拌针直径对铝/钢填丝搅拌摩擦焊接头组织及性能的影响[J].精密成形工程,2021,13(2):111-115.
HAN Shi-wei,LUO Zhan,JIANG Xiao,et al.Effect of Diameter of Thread Stirring Pin on Microstructure and Properties of Friction Stir Welded Joint of Al/Steel with Interlayer[J].Journal of Netshape Forming Engineering,2021,13(2):111-115. |
| 螺纹搅拌针直径对铝/钢填丝搅拌摩擦焊接头组织及性能的影响 |
| Effect of Diameter of Thread Stirring Pin on Microstructure and Properties of Friction Stir Welded Joint of Al/Steel with Interlayer |
| 投稿时间：2020-09-29 |
| DOI：10.3969/j.issn.1674-6457.2021.02.018 |
| 中文关键词: 螺纹搅拌针直径 异种金属 搅拌摩擦焊 铝硅焊丝 |
| 英文关键词: diameter of diameter of thread stirring pin dissimilar metals friction stir welding Al-Si fill metal |
| 基金项目:重庆市自然科学基金(cstc2018jcyjAX0705);重庆市重点产业共性关键技术创新专项(cstc2015zdcy- ztzx600100);重庆市高校创新研究群体(CXQT20023);重庆英才.创新创业领军人才计划(CQYC201903051);重庆理工大学研究生创新项目(ycx20192038) |
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| 中文摘要: |
| 目的 采用填丝搅拌摩擦焊方法，研究螺纹搅拌针直径对6061铝合金/304不锈钢搅拌摩擦焊接接头组织及性能的影响。方法 通过使用3种不同直径的螺纹搅拌头，观察不同结构搅拌头对焊缝成形及接头微观形貌的演变规律，并对其进行力学性能测试，研究搅拌头结构对接头性能强化的影响。结果 随着螺纹搅拌针直径由M4增加到M6，焊缝表面成形逐渐粗糙，同时在接头焊缝中易产生大尺寸钢屑;另外，随着螺纹搅拌针直径的增加，接头界面处容易生成HOOK缺陷，同时在界面附近区域易出现钢屑的聚集;接头的抗拉强度随螺纹搅拌针直径的增加，呈明显下降的趋势。当螺纹搅拌针直径为M4时，接头的抗拉性能达到最大值156 MPa。结论 通过采用直径为M4的螺纹搅拌头，能够获得具有最优综合性能的接头。 |
| 英文摘要: |
| The work aims to study the effect of the diameter of thread stirring pin on the microstructure and properties of 6061 aluminum alloy/304 stainless steel friction stir welding joint through wire filling friction stir welding. By using thread stirring heads of three kinds of different diameter, the evolution law of weld formation and joint micro morphology was observed, and the mechanical properties were tested to study the influence of the structure of stirring head on the joint performance strengthening. When the diameter of the thread stirring needle increased from M4 to M6, the weld surface became rough gradually, and large-scale steel chips were likely to be produced in the joint weld; In addition, with the increase of the diameter of the thread stirring pin, hook defects were likely to form at the joint interface, and steel chips were likely to gather in the area near the interface; Therefore, the tensile strength of the joint decreased with the increase of the diameter of the thread stirring pin. When the diameter of the thread stirring needle was M4, the tensile strength of the joint reached the maximum value of 156 MPa. Through the use of M4 diameter thread stirring head, the joint with the best comprehensive performance can be obtained. |
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