Nd:YAG Laser beam welding invar36 alloy sheet

WU Dong-jiang; YIN Bo; ZHOU Qiu-ju; WANG Xu-yue; JIN Zhu-ji

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Nd:YAG Laser beam welding invar36 alloy sheet

Article | 更新时间：2020-08-12

- Nd:YAG Laser beam welding invar36 alloy sheet
- Optics and Precision Engineering Vol. 17, Issue 3, Pages: 557-562(2009)
- 作者机构：
  
  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,116023
- 作者简介：
- 基金信息：
- DOI：
  CLC： TG456.7
- Received：16 April 2008，
  
  Revised：26 June 2008，
  
  Published Online：25 March 2009，
  
  Published：25 March 2009
- 稿件说明：
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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): 557-562

WU Dong-jiang, YIN Bo, ZHOU Qiu-ju, WANG Xu-yue, JIN Zhu-ji. Nd:YAG Laser beam welding invar36 alloy sheet[J]. Editorial Office of Optics and Precision Engineering, 2009,17(3): 557-562
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): 557-562 DOI：

WU Dong-jiang, YIN Bo, ZHOU Qiu-ju, WANG Xu-yue, JIN Zhu-ji. Nd:YAG Laser beam welding invar36 alloy sheet[J]. Editorial Office of Optics and Precision Engineering, 2009,17(3): 557-562 DOI：

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。

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 penetration

weld width and Heat Affect Zone(HAZ) are laser power and pulse duration. Moreover

the welding speed effects on the fish-scale spacing and the defocus distance on the weld bead penetration and weld width mainly. Experimental results also indicate that selecting appropriate process parameters can realize the butt-weld for the 0.85 mm thick Invar sheets in good welding modality.The composition of the welding-line has no obviously change

its tensile strength is equal to the base body and its hardness is appreciably lower than that of the base body.

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references

MASAYUKI S. Invar alloys[J]. Current Opinion in Solid State & Materials Science, 1996(1):340-348.[2] TALASHI S, TADAHIKO F,JUNG-HWAN H, et al.. Multifunctional Alloys Obtained via a Dislocation-Free Plastic Deformation Mechanism[J]. Science,2003, 300:464-467.[3] CORBACHO J L,SUREZ J C,MOLLEDA F.Grain coarsening and boundary migration during welding of invar Fe-36Ni alloy[J]. Materials characterization,1998,41:27-34.[4] 朱海明. 新材料、新结构在某相控阵天线结构设计中的应用[J]. 电子机械工程,2006,22(1):30-32. ZHU H M. Application of New Materials and New Structures to Phased Array Antenna[J]. Electro-Mechanical Engineering, 2006,22(1):30-32. (in Chinese)[5] SMITH R J,LEWI G J,YATES D H. Development and application of nickel alloys in aerospace engineering[J]. Aircraft Engineering and Aerospace Technology,2001,73(2):138-147.[6] 邓波,寒光炜,冯涤. 低膨胀高温合金的发展及在航空航天业的应用[J]. 航空材料学报,2003,23(增1):244-249. DENG B, HAN G W, FENG D. Development of low thermal expansion superalloys and their application in aerospace[J]. Journal of aeronautical materials, 2003,23(s1):244-249.(in Chinese)[7] 关振中. 激光加工技术手册[M]. 北京: 中国计量出版社, 1998:109-132. GUAN ZH ZH. Manual for Laser Processing Parameter[M]. Beijing: Press of Chinese Measurement, 1998:109-132.(in Chinese)[8] ZHOU Q J,WU D J,JIN ZH J. Low power Nd:YAG laser beam welding Invar36 alloy . Proc.AEMS07. Nagoya Japan:28-30 Nov., 2007:161-164.[9] 周清林, 乔及森, 陈剑虹,等. 铝合金CO2激光与TIG薄板焊接接头力学性能分析[J]. 焊接学报,2006,27(8):63-66. ZHOU Q L, QIAO J S, CHEN J H, et al.. Mechanical properties of CO2-laser and TIG aluminium alloy welded joint[J]. Transactions of the China welding institution, 2006,27(8):63-66.(in Chinese)

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