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题名: Effects of processing parameters on powder utilization ratio during laser metal deposition shaping
作者: Zhang K(张凯) ; Zhang XM(张新敏) ; Liu WJ(刘伟军)
作者部门: 装备制造技术研究室
会议名称: 2nd International Symposium on Chemical Engineering and Material Properties, ISCEMP 2012
会议日期: June 22-24, 2012
会议地点: Taiyuan, China
会议录: Advanced Materials Research
会议录出版者: Trans Tech Publications
会议录出版地: Clausthal-Zellerfeld, Germany
出版日期: 2012
页码: 790-794
收录类别: EI
ISSN号: 1022-6680
ISBN号: 9783037854549
关键词: Chemical engineering ; Laser applications ; Lasers
摘要: The Laser Metal Deposition Shaping (LMDS) process involves injecting metallic powder into a molten pool created by a high power industrial laser. As the laser traverses across the substrate in a layer-by-layer fashion, a fully dense metal is left in its path. A few processing parameters involved with the LMDS include the laser power, traverse speed, powder feeding rate, and gas flow rate, etc, which affect many factors of LMDS technology. Among them, the powder utilization ratio is an important one because it directly determines the build rate and build height per layer. Due to some objective reasons, the powder utilization ratio is far less than 100%. In order to ensure the stability of LMDS technology, it is necessary to investigate the match between powder utilization ratio and build rate and forming efficiency, and grasp the influence rules of processing parameters on powder utilization ratio. Accordingly, the related experiments were performed with the varied laser power, scanning speed and powder feeding rate. The results prove that the powder utilization ratio is a varied value, and affected by the processing parameters. Consequently, the relative ideal parameter match should be chosen in accordance with the specific circumstances during the LMDS technology, thus ensuring the better powder utilization ratio and promoting the forming efficiency and economic benefit.
产权排序: 2
内容类型: 会议论文
URI标识: http://ir.sia.cn/handle/173321/10148
Appears in Collections:装备制造技术研究室_会议论文

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