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Alternative TitleInfluence of Offset Between Layers on Molten Pool Temperature in Metal Laser Additive Manufacturing
来佑彬1; 赵宇辉2; 王冬阳1; 杨波1
Source Publication机械设计与制造
Issue9Pages:112-114, 118
Contribution Rank2
Funding Organization国家自然科学基金(51605311) ; 辽宁省教育厅科学研究重点项目(LSNZD201603) ; 沈阳市科技计划项目(17-231-1-65)
Keyword增材制造 偏移量 熔池 温度 Hastelloy C-276合金
Abstract金属激光增材制造过程中熔池温度变化对加工质量具有重要影响,为研究Hastelloy C-276合金球形粉末激光增材制造层间偏移量对熔池温度的影响情况,搭建了熔池温度实时监测系统。采用非接触式红外测温手段测量了不同层间偏移量薄壁件加工过程中熔池温度变化情况。结果表明,不同层间偏移量倾斜薄壁加工过程中熔池温度变化有相似规律,即开始时温度急剧增大,后继续增大至峰值点,进而缓慢减小,最后基板温度累积效应和环境的影响达到平衡,倾斜薄壁熔池温度趋于稳定。另外,熔池截面面积随着层间偏移量的增大而增大,熔池捕获金属粉末的能力随之增强,受此影响,熔池平均温度与层间偏移量呈负相关关系。
Other AbstractIn metal laser additive manufacturing,the molten pool temperature has a significant impact on the quality of the finished parts. In order to investigate the effect of the offset between layers on molten pool temperature in Hastelloy C-276 alloy spherical powder laser additive manufacturing,a real-time monitoring system was builded. The influence of the offset on the molten pool temperature was measured by a non-contact infrared temperature measurement. It was found that the change of molten pool temperature in the thin -walled process with different offset has a similar rule. At first,the temperature increases sharply to the peak,then decreases slowly,and finally,the temperature tends towards stability with the balance of the substrate temperature cumulative effect and the environmental impact. In addition,the cross-sectional area of the pool increases with the offset between layers increasement,and the ability to capture metal powder is enhanced at the same time. Therefore,the molten pool average temperature is negative correlation with the offset between layers.
Document Type期刊论文
Corresponding Author来佑彬
Recommended Citation
GB/T 7714
来佑彬,赵宇辉,王冬阳,等. 金属激光增材制造层间偏移量对熔池温度的影响[J]. 机械设计与制造,2019(9):112-114, 118.
APA 来佑彬,赵宇辉,王冬阳,&杨波.(2019).金属激光增材制造层间偏移量对熔池温度的影响.机械设计与制造(9),112-114, 118.
MLA 来佑彬,et al."金属激光增材制造层间偏移量对熔池温度的影响".机械设计与制造 .9(2019):112-114, 118.
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