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| K418与42CrMo异种金属激光深熔焊接 | |
| Alternative Title | Deep penetration laser welding dissimilar metal of K418 and 42CrMo |
庞铭 ; 郑彩云; 刘秀波; 虞钢
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| Source Publication | 焊接学报
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| 2007-09-25 | |
| Volume | 28Issue:9Pages:83-86 |
| ISSN | 0253-360X |
| Abstract | 研究了连续波Nd:YAG激光焊接功率、速度、离焦量和侧吹保护气流量对激光深熔焊接K418与42CrMo异种金属焊缝形貌、焊缝熔深的影响,讨论了焊缝区热裂纹产生机制.结果表明,额定功率为3 kW的Nd:YAG激光深熔焊接K418与42CrMo异种金属,由于它们的物理化学性质的差异,焊缝靠近42CrMo侧易出现未熔合;激光光斑向42CrMo侧偏移可以减少焊缝靠近42CrMo侧未熔合量;通过优化侧吹保护气流量和离焦量可以增加熔深.由于K418液态金属的流动性差,导致焊缝靠近K418侧对流传热不充分,使焊缝靠近K418侧熔合线呈现锯齿形.焊缝区热裂纹的产生主要是由于焊缝区元素偏析形成的低熔物导致. |
| Keyword | 激光焊接 深熔焊 焊缝 热裂纹 |
| Indexed By | CSCD |
| Language | 中文 |
| CSCD ID | CSCD:2926305 |
| Citation statistics |
Cited Times:3[CSCD]
[CSCD Record]
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| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/40050 |
| Collection | 力学所知识产出(1956-2008) |
| Corresponding Author | 庞铭 |
| Recommended Citation GB/T 7714 | 庞铭,郑彩云,刘秀波,等. K418与42CrMo异种金属激光深熔焊接[J]. 焊接学报,2007,28,9,:83-86. |
| APA | 庞铭,郑彩云,刘秀波,&虞钢.(2007).K418与42CrMo异种金属激光深熔焊接.焊接学报,28(9),83-86. |
| MLA | 庞铭,et al."K418与42CrMo异种金属激光深熔焊接".焊接学报 28.9(2007):83-86. |
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