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激光熔丝增材制造温度场的红外热像监测 预览

Monitoring of laser metal-wire additive manufacturing temperature field using infrared thermography
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摘要 为实现对增材制造成形件的精确控形控性,必须要对其热过程有一定科学认识。以真空环境下激光熔丝增材制造单道成形为例,利用红外热像技术对其热过程进行监测。比较分析送丝速度对温度场、热循环、冷却速率的影响规律,利用红外热分析对其成形熔敷道宽度及缺陷开展研究。结果表明:借助红外热像可实现对熔敷道温度场变化的监测,沿熔敷道长度成形方向,监测点对应最高温度和冷却速率分别呈现升高和降低趋势。随着送丝速度的增加,熔敷道长度1/4、2/4、3/4处监测点对应的冷却速率随之减小。此外,基于红外热分析可实现对熔敷道宽度预测以及对缺陷位置的定位。 For achieving precisely "controlling shape and performance" of components by additive manufacturing, scientific understanding is needed for thermal process. Taking laser metal-wire additive manufacturing(AM) under vacuum and using single-pass as an example, the thermal process was monitored based on infrared(IR) thermography. The effect of wire feeding speed on temperature field, thermal cycle,cooling rate was analyzed. The width of cladding layer and defect were studied based on IR thermography. The results show that the temperature monitoring was achieved. Along the length of cladding layer, the maximum temperature for monitoring point increased and then the cooling rate decreased. With wire feeding speed increasing, it led to the decrease of cooling rate for monitoring point at 1/4, 2/4, 3/4 of cladding layer. In addition, the width of cladding layer could be predicted and the location of defect could be located with the help of IR thermography analysis.
作者 朱进前 凌泽民 杜发瑞 丁雪萍 李慧敏 Zhu Jinqian1, Ling Zemin1, Du Farui1, Ding Xueping2,3, Li Huimin1(1. School of Material Science and Engineering, Chongqing University, Chongqing 400045, China;2. Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China;3. Chongqing Key Laboratory of Additive Manufacturing Technology and Systems, Chongqing 400714, China)
出处 《红外与激光工程》 CSCD 北大核心 2018年第6期135-139,共5页 Infrared and Laser Engineering
基金 中国科学院重点部署项目(ZDRW-KT-2016-1 KGZD-EW-T04) 重庆市基础科学与前沿技术研究一般项目(cstc2016jcyj A0059) 先进焊接与连接国家重点实验室面上项目(AWJ-M16-03)
关键词 红外热像 增材制造 激光熔丝 送丝速度 infrared thermography additive manufacturing laser metal wire wire feeding speed
作者简介 朱进前(1992-),男,硕士生,主要从事激光熔丝增材制造方面的研究。Email:zh山inqian@cqu.edu.cn;通讯作者:丁雪萍(1988-),女,助理研究员,博士,主要从事激光熔丝增材制造方面的研究。Email:dingxueping@cigit.ac.cn
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  • 1颜敏,张述泉,王华明.激光熔化沉积AerMet 100耐蚀超高强度钢的凝固组织及力学性能[J].金属学报,2007,43(5):472-476. 被引量:11
  • 2Arcella F G,Froes F H.Producing titanium aerospace components from powder using laser forming[J].JOM,2000,52(5):28-30. 被引量:1
  • 3Breinan E M,Kear B H.Rapid solidification laser processing at high power density[J].Materials ProcessingTheory and Practices,1983,3:235-295. 被引量:1
  • 4US National Science and Technology Council.National network for manufacturing innovation:a preliminary design[EB/OL].(2013-01-10)[2014-07-22].http://www.whitehouse.gov / sites/ default/ files/ microsites/ ostp/ nste _nnmi_prelim_design_ final.pdf. 被引量:1
  • 5Gamann M,Bezencon C,Canalis P,et al.Single-crystal laser deposition of super-alloys:processing-microstructure maps[J].Acta Materialia,2001,49(6):1051-1062. 被引量:1
  • 6Dinda G P,Dasgupta A K,Mazumder J.Laser aided direct metal deposition of Inconel 625 superalloy:Microstructural evolution and thermal stability[J].Materials Science and Engineering:A,2009,509(1-2):98-104. 被引量:1
  • 7Hussein N I S,Segal J,McCartney D G,et al.Microstructure formation in Waspaloy multilayer builds following direct metal deposition with laser and wire[J].Materials Science and Engineering:A,2008,497 (1-2):260-269. 被引量:1
  • 8Moata R J,Pinkerton A J,Li L,et al.Residual stresses in laser direct metal deposited Waspaloy[J].Materials Science and Engineering:A,2011,528(6):2288-2298. 被引量:1
  • 9Susana D,Puskar J D,Brooks J A,et al.Quantitative characterization of porosity in stainless steel LENS powders and deposits[J].Materials Characterization,2006,57(1):36-43. 被引量:1
  • 10Wang L,Felicelli S D,Pratt P.Residual stresses in LENS-deposited AISI 410 stainless steel plates[J].Materials Science and Engineering:A,2008,496 (1-2):234-241. 被引量:1

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