| 用Nd:YAG激光焊接殷钢薄板材料 |
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| 引用本文： | 吴东江,尹波,周秋菊,王续跃,金洙吉. 用Nd:YAG激光焊接殷钢薄板材料[J]. 光学精密工程, 2009, 17(3) |
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| 作者姓名： | 吴东江 尹波 周秋菊 王续跃 金洙吉 |
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| 作者单位： | 大连理工大学,精密与特种加工教育部重点实验室,辽宁,大连,116024;大连理工大学,精密与特种加工教育部重点实验室,辽宁,大连,116024;大连理工大学,精密与特种加工教育部重点实验室,辽宁,大连,116024;大连理工大学,精密与特种加工教育部重点实验室,辽宁,大连,116024;大连理工大学,精密与特种加工教育部重点实验室,辽宁,大连,116024 |
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| 基金项目： | 国家重点基础研究发展规划(973计划) |
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| 摘 要： | 用Nd:YAG脉冲激光作为焊接热源,对殷钢材料Invar36分别进行了平板单道焊接试验和对焊试验,分析了工艺参数(激光功率、焊接速度、脉冲宽度和离焦量)变化对焊缝的表面形貌、熔宽以及熔透性的影响.检测了0.85 mm厚的殷钢薄板对焊接头的硬度、成分以及拉伸强度.结果表明:激光功率和脉宽是影响焊缝熔深、熔宽和热影响区面积的主要因素;扫描速度对焊缝表面的鱼鳞状条纹间距影响尤为明显;离焦量主要影响焊缝的宽度和熔透性;合理匹配工艺参数能够实现0.85 mm厚度薄板的对焊,并且获得形貌良好的焊缝.焊缝的组织成分没有发生明显变化,拉伸强度和基体强度相当,显微硬度略低于基体硬度.
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| 关 键 词： | Invar36殷钢 激光焊接 对焊 熔宽 Nd:YAG激光器 |
Nd:YAG Laser beam welding invar36 alloy sheet |
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| WU Dong-jiang,YIN Bo,ZHOU Qiu-ju,WANG Xu-yue,JIN Zhu-ji. Nd:YAG Laser beam welding invar36 alloy sheet[J]. Optics and Precision Engineering, 2009, 17(3) |
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| Authors: | WU Dong-jiang YIN Bo ZHOU Qiu-ju WANG Xu-yue JIN Zhu-ji |
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| Affiliation: | Key Laboratory for Precision and Non-traditional Machining Technology of theMinistry of Education;Dalian University of Technology;Dalian 116024;China |
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| Abstract: | A plate-welding test and a butt-welding test for Invar 36 alloy were carried out using Nd:YAG pulsed laser as welding heat source. The effects of process parameters(laser power,welding speed,pulse duration and defocus distance) on the morphology of welding joint,welding width and the penetration were analyzed and the hardness,composition and tensile strength of the fusion zone for butt-welding of 0.85 mm thick Invar sheets were tested. The results indicated that the main factors affecting the weld bead pene... |
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| Keywords: | Invar36 alloy laser welding butt-welding weld width Nd:YAG laser |
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