中国激光, 2018, 45 (11): 1102007, 网络出版: 2018-11-15
6082铝合金激光填丝焊热影响区的软化现象 
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Softening Phenomenon of Heat-Affected Zone in Laser Welding of 6082 Al Alloys with Filler Wire
图 & 表
图 2. 不同工艺参数下焊接接头的宏观形貌。(a) v=0.72 m·min-1,P=3000 W; (b) v=1.5 m·min-1,P=3250 W;(c) v=2.1 m·min-1,P=3750 W;(d) v=2.7 m·min-1,P=4250 W
Fig. 2. Macroscopic morphologies of welding joints under different process parameters. (a) v=0.72 m·min-1, P=3000 W; (b) v=1.5 m·min-1, P=3250 W; (c) v=2.1 m·min-1, P=3750 W; (d) v=2.7 m·min-1, P=4250 W
图 3. 焊接接头形貌。(a) P=3000 W,v=0.72 m·min-1,HAZ;(b) P=4250 W,v=2.7 m·min-1,HAZ;(c) BM
Fig. 3. Morphologies of welding joints. (a) P=3000 W, v=0.72 m·min-1, HAZ; (b) P=4250 W, v=2.7 m·min-1, HAZ; (c) BM
图 4. 不同工艺参数下焊接接头的显微硬度。(a) P=3000 W,v=0.72 m·min-1;(b) P=4250 W,v=2.7 m·min-1
Fig. 4. Micro-hardness of welding joints under different process parameters. (a) P=3000 W, v=0.72 m·min-1; (b) P=4250 W, v=2.7 m·min-1
图 5. 不同工艺参数下焊接接头的拉伸曲线。(a) P=3000 W,v=0.72 m·min-1;(b) P=4250 W,v=2.7 m·min-1
Fig. 5. Stress-strain curves of welding joints under different process parameters. (a) P=3000 W, v=0.72 m·min-1; (b) P=4250 W, v=2.7 m·min-1
图 6. 升温速度10 K·min-1下6082铝合金DSC曲线
Fig. 6. DSC curve of 6082 Al alloy at heating rate of 10 K·min-1
图 7. 升温速度20 K·min-1下6082铝合金DSC曲线
Fig. 7. DSC curve of 6082 Al alloy at heating rate of 20 K·min-1
图 8. 不同工艺参数下焊接热循环模拟曲线。(a) P=3000 W,v=0.72 m·min-1;(b) P=4250 W,v=2.7 m·min-1
Fig. 8. Welding thermal cycle curves under different process parameters. (a) P=3000 W, v=0.72 m·min-1; (b) P=4250 W, v=2.7 m·min-1
图 9. 母材形貌。(a) TEM高分辨图;(b)衍射花样图
Fig. 9. Morphology of BM. (a) High-resolution TEM; (b) diffraction pattern
表 16082-T6铝合金的化学成分(质量分数,%)
Table1. Chemical compositions of 6082-T6 aluminum alloy (mass fraction, %)
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表 2ER4047焊丝的化学成分(质量分数,%)
Table2. Chemical compositions of ER4047 welding wire (mass fraction, %)
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李福泉, 冯时, 李明伟, 朱云皓. 6082铝合金激光填丝焊热影响区的软化现象[J]. 中国激光, 2018, 45(11): 1102007. Li Fuquan, Feng Shi, Li Mingwei, Zhu Yunhao. Softening Phenomenon of Heat-Affected Zone in Laser Welding of 6082 Al Alloys with Filler Wire[J]. Chinese Journal of Lasers, 2018, 45(11): 1102007.
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