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Coaxial powder delivery system for laser metal deposition shaping
Zhang K(张凯); Liu WJ(刘伟军); Shang XF(尚晓峰)
作者部门现代装备研究室
会议名称2009 International Technology and Innovation Conference, ITIC 2009
会议日期October 12-14, 2009
会议地点Xi'an, China
会议录名称2009 International Technology and Innovation Conference, ITIC 2009
出版者IET
出版地Stevenage, United Kingdom
2009
页码1-5
收录类别EI
EI收录号20103513191761
产权排序2
ISBN号978-1-84919-139-5
关键词Laser Metal Deposition Shaping (Lmds) Powder Delivery System Coaxial Nozzle Powder Storage And Delivery Mechanism Performance Calibration
摘要Laser forming based on Rapid Prototyping (RP) is a state-of-the-art technology, which creates part by focusing an industrial laser beam on the surface of processing workpiece to create a molten pool of metal. A small stream of powdered alloy sprayed from a nozzle is then injected into the molten pool to build up the part gradually. By moving the laser beam back and forth and tracing out a pattern determined by a CAD, the solid metal part is fabricated line by line, one layer at a time. By this method, a material having a very fine microstructure due to rapid solidification process can be produced. In the present work, a type of direct laser deposition process, called Laser Metal Deposition Shaping (LMDS), has been employed and developed to fabricate metal parts. The LMDS apparatus consists of four primary components: energy supply system, motion control system, powder delivery system, and computer control system. These components have their specified functions, but work in association with each other. Among them, powder delivery system is the most important one that considerably determines the quality of the as-fabricated metal part. Through the experiments, it is proved that the coaxial powder delivery system can provide uniform and steady powder stream, and possesses the omnidirectional characteristic which results in the smooth appearance and consistent geometry of the deposited part. 1 Introduction.
语种英语
文献类型会议论文
条目标识符http://ir.sia.cn/handle/173321/19972
专题装备制造技术研究室
通讯作者Zhang K(张凯)
作者单位1.School of Mechanical Engineering, Shenyang University of Technology, Shenyang 110178, China
2.Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
3.Shenyang Institute of Aeronautical Engineering, School of Machinery and Automobile, Shenyang 110136, China
推荐引用方式
GB/T 7714
Zhang K,Liu WJ,Shang XF. Coaxial powder delivery system for laser metal deposition shaping[C]. Stevenage, United Kingdom:IET,2009:1-5.
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