Knowledge Management System of Institue of Mechanics, CAS
| Characteristics of deep penetration laser welding of dissimilar metal Ni-based cast superalloy K418 and alloy steel 42CrMo | |
Liu XB(刘秀波) ; Pang M(庞铭); Zhang ZG; Ning WJ(宁伟健); Zheng CY(郑彩云); Yu G(虞钢); Yu, G (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, 15 Beisihuanxi Rd, Beijing 100080, Peoples R China.
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| Source Publication | Optics and Lasers in Engineering
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| 2007 | |
| Volume | 45Issue:9Pages:929-934 |
| ISSN | 0143-8166 |
| Abstract | Experimental trials of autogenous deep penetration welding between dissimilar cast Ni-based superalloy K418 and alloy steel 42CrMo flat plates with 5.0 mm thickness were conducted using a 3 kW continuous wave (CW) Nd:YAG laser. The influences of laser output power, welding velocity and defocusing distance on the morphology, welding depth and width as well as quality of the welded seam were investigated. Results show that full keyhole welding is not formed on both K4.18 and 42CrMo side, simultaneously, due to the relatively low output power. Partial fusion is observed on the welded seam near 42CrMo side because of the large disparity of thermal-physical and high-temperature mechanical properties of these two materials. Tile rnicrohardness of the laser-welded joint was also examined and analyzed. It is suggested that applying negative defocusing in the range of Raylei length can increase the welding depth and improve tile coupling efficiency of the laser materials interaction. (c) 2007 Elsevier Ltd. All rights reserved. |
| Keyword | Laser Processing Metals And Alloys Welded Seam Nd-yag Laser Aluminum |
| DOI | 10.1016/j.optlaseng.2007.03.004 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000248668800003 |
| WOS Keyword | ND-YAG LASER ; ALUMINUM |
| WOS Research Area | Optics |
| WOS Subject | Optics |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/33935 |
| Collection | 力学所知识产出(1956-2008) |
| Corresponding Author | Yu, G (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, 15 Beisihuanxi Rd, Beijing 100080, Peoples R China. |
| Recommended Citation GB/T 7714 | Liu XB,Pang M,Zhang ZG,et al. Characteristics of deep penetration laser welding of dissimilar metal Ni-based cast superalloy K418 and alloy steel 42CrMo[J]. Optics and Lasers in Engineering,2007,45,9,:929-934. |
| APA | 刘秀波.,庞铭.,Zhang ZG.,宁伟健.,郑彩云.,...&Yu, G .(2007).Characteristics of deep penetration laser welding of dissimilar metal Ni-based cast superalloy K418 and alloy steel 42CrMo.Optics and Lasers in Engineering,45(9),929-934. |
| MLA | 刘秀波,et al."Characteristics of deep penetration laser welding of dissimilar metal Ni-based cast superalloy K418 and alloy steel 42CrMo".Optics and Lasers in Engineering 45.9(2007):929-934. |
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