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Coaxial monitoring of temperature field in selective pulsed laser melting
Author(s): Che Liu; Zhongyun Chen; Hongzhong Cao; Jianhong Zhou
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Paper Abstract

Selective Laser Melting is a rapid manufacturing technology which produces complex parts layer by layer. The presence of thermal stress and thermal strain in the forming process often leads to defects in the formed parts. In order to detect fabricate errors and avoid failure which caused by thermal gradient in time. An infrared thermal imager and a high speed CCD camera were applied to build a coaxial optical system for real-time monitoring the temperature distribution and changing trend of laser affected zone in SLM forming process. Molten tracks were fabricated by SLM under different laser parameters such as frequency, pulse width. And the relationship between the laser parameters and the temperature distribution were all obtained and analyzed.

Paper Details

Date Published: 24 October 2017
PDF: 8 pages
Proc. SPIE 10457, AOPC 2017: Laser Components, Systems, and Applications, 104573G (24 October 2017); doi: 10.1117/12.2286275
Show Author Affiliations
Che Liu, Changchun Univ. of Science and Technology (China)
Chongqing Institute of Green and Intelligent Technology (China)
Zhongyun Chen, Changchun Univ. of Science and Technology (China)
Chongqing Institute of Green and Intelligent Technology (China)
Hongzhong Cao, Chongqing Institute of Green and Intelligent Technology (China)
Jianhong Zhou, Changchun Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 10457:
AOPC 2017: Laser Components, Systems, and Applications
Shibin Jiang; Lijun Wang; Lan Jiang; Long Zhang, Editor(s)

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