Micro friction stir welding technology of 6061-T6 aluminum alloys

被引：0
|
作者：
Zhang D. [1 ]
Xia P. [1 ]
Cui F. [1 ]
Yin Y. [1 ]
机构：
[1] Shanghai Aerospace Equipments manufacturer Co., Ltd., Shanghai
来源：
Hanjie Xuebao/Transactions of the China Welding Institution | 2019年 / 40卷 / 03期
关键词：
6061 aluminum alloys; Micro friction stir welding; Microstructures; Tensile strength;
D O I：
10.12073/j.hjxb.2019400080
中图分类号：
学科分类号：
摘要：
Taking the butt welding process of 0.8 mm 6061 aluminum alloys micro-friction stir welding as the research object, using special tool and simulating the temperature field to pre-select the process parameters, their mechanical properties for different rotational speeds were compared by tensile test and the best welding parameter matching for the total were confirmed. The microstructures were studied by optical microscope and scanning electron microscopy. It is shown that the welded joints with superior mechanical properties can be got when the traversing speed reaches 300 mm/min and the rotational speed reaches 14 000 ~ 24 000 r/min, the tensile strength of which is above 70% of base metal. Compared with traditional friction stir welding, the HAZ of micro-structure of micro-friction stir welding seam only partially grew up, but some grains remained the same as the matrix without obvious change. © 2019, Editorial Board of Transactions of the China Welding Institution, Magazine Agency Welding. All right reserved.
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页码：102 / 106
页数：4
相关论文
共 10 条
  • [1] Dawes C.J., Thomas W.M., Friction stir process welds aluminum alloys, Welding Journal, 75, 3, pp. 41-45, (2003)
  • [2] Zhang Z., Zhang H., Simulation of 3D material flow in friction stir welding of AA6061-T6, China Welding, 17, 1, pp. 57-63, (2008)
  • [3] Zhang K., Luan G., Fu R., Effect of natural aging on microstructure and mechanical properties of friction stir welded 7050-T7451 joints, China Welding, 25, 3, pp. 16-22, (2016)
  • [4] Pan R., Wang S., Li J., Et al., Effect of processing parameters on mechanical properties of aluminum alloy joints welded by friction stir welding, Transactions of the China Welding Institution, 37, 11, pp. 89-92, (2016)
  • [5] Zhang Z., Liu H., Effect of pin shapes on material deformation and temperature field in friction stir welding, Transactions of the China Welding Institution, 32, 3, pp. 5-8, (2011)
  • [6] Li J., Zhao Y., Kang X., Characteristic of temperature distributions in stirring tools during friction stir welding, Transactions of the China Welding Institution, 35, 3, pp. 66-70, (2014)
  • [7] Xia P., Xu K., Wang Y., Et al., Analysis of microstructure and properties of large thickness plate 5A06 aluminum alloy for friction stir welding, Electric Welding Machine, 44, 4, pp. 23-26, (2014)
  • [8] Zhao H., Feng X., Xiong Y., Et al., Microstructure and properties of micro friction stir welded joint of Al-alloy ultra thin plate with zero tilt angle, Transactions of the China Welding Institution, 35, 7, pp. 47-50, (2014)
  • [9] Zhang J., Huang H., Feng X., Et al., Investigation on micro friction stir welded lock joint of thin Al-alloy/SiC reinforced Al composite, Transactions of the China Welding Institution, 38, 11, pp. 119-123, (2017)
  • [10] Zhang J., Feng X., Huang H., Et al., Micro friction stir welding lap joint of thin Al-alloy/SiC reinforced Al composite, Rare Metal Materials and Engineering, 45, 3, pp. 720-726, (2016)
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