MATEC Web Conf.
Volume 139, 20172017 3rd International Conference on Mechanical, Electronic and Information Technology Engineering (ICMITE 2017)
|Number of page(s)||4|
|Published online||05 December 2017|
Impact of Laser Additive Enhanced Powder Feeding Methods on Melt Pool Temperature Field
1 Laser Institute of Shandong Academy of Sciences, Ji Nan, 250014, China
2 Remanufacturing Branch of Yan kuang Dong hua Heavy Industry Co., Ltd, Zhou Cheng, 273500, China
The surface of Q345 steel are coated with the Fe62 alloy powder by the synchronous powder feeding method and the prepositioned powder feeding method. The impacts of the two methods on the laser pool forming rate and the temperature field are tested and analyzed with a Charge-Coupled Device (CCD) colorimetric thermometer. The results indicate that the laser pool has faster forming rate, more stable and homogeneous temperature field with the synchronous powder feeding method than the prepositioned powder feeding method under the same conditions. The outcomes are of great significant to optimize the process of the laser additive enhancement technology.
Key words: Laser Additive Enhancement; / Temperature Detection; / Synchronous Powder Feeding; / Prepositioned Powder Feeding
© The Authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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