Experimental investigation of transient temperature characteristic in high power fiber laser cutting of a thick steel plate

被引：22
|
作者：
Nguyen Phi Long [1 ]
Matsunaga, Yukihiro [1 ,2 ]
Hanari, Toshihide [1 ,2 ]
Yamada, Tomonori [1 ,2 ]
Muramatsu, Toshiharu [1 ,2 ]
机构：
[1] Japan Atom Energy Agcy, Appl Laser Technol Inst, 65-20 Kazaki, Tsuruga, Fukui 9148585, Japan
[2] Japan Atom Energy Agcy, Sect Fukushima Res & Dev, Ctr Res Infrastruct Dev, 7-1 Aza, Iwaki, Fukushima 9708026, Japan
来源：
OPTICS AND LASER TECHNOLOGY | 2016年 / 84卷
关键词：
High power laser; Laser cutting; Thick steel; Temperature measurement; Thermography; Two-color thermometer; SECTION STAINLESS-STEEL; GAS; METAL;
D O I：
10.1016/j.optlastec.2016.05.005
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Experiment of temperature measurement was performed to investigate the transient temperature characteristics of molten metal during laser cutting. The aim of this study was to establish a method for measuring the surface temperature variation near the molten pool correlated with changes in cutting parameters. The relationship between temperature inside the kerf cut and characteristic of the cut surface was investigated by using thermography and thermocouples. Results show strong correlations between the transient temperatures and the thermal image for different cutting conditions. In addition, two-color thermometer has been used to obtain radiation intensity emitted from the irradiating zone as a function of operating conditions. Experiments have shown that one can detect the cutting quality by characterization of the surface temperature during laser cutting process. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：134 / 143
页数：10
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