Measurement of characteristic parameters of three dimensional weld pool surface in tungsten inert gas arc welding based on laser-vision

doi:10.16183/j.cnki.jsjtu.2015.03.003

	Measurement of characteristic parameters of three dimensional weld pool surface in tungsten inert gas arc welding based on laser-vision
	Zhang, Gang; Shi, Yu; Li, Chun-Kai; Fan, Ding; Huang, Jian-Kang
刊名	Shanghai Jiaotong Daxue Xuebao/Journal of Shanghai Jiaotong University
	2015-03-28
卷号	49 期号:3 页码:301-305
关键词	Gas metal arc welding High speed cameras Inert gases Tungsten Welds Actual measurements Characteristic parameters Free surfaces Laser dot matrixes Laser vision Three-dimensional information Tungsten inert-gas arc welding Weld pool surfaces
ISSN号	10062467
DOI	10.16183/j.cnki.jsjtu.2015.03.003
英文摘要	Aimed at the problems in measuring the three dimensional weld pool surface in tungsten inert gas arc welding in existing methods, which are hardly applied in the strong arc light, high temperature radiations and specular refection. A novel method named laser-vision was developed, and the measurement system was established. The experiments with laser dot matrix and parallel lines pattern were performed and the reflected laser distorted images were captured by a high speed camera. The reflected laser dot coordinate and its transfer model between projected laser dot coordinate were extracted and established, respectively. The geometric parameters of the weld pool surface were obtained offline. The comparison of the extracted and measured result shows that the proposed method can successfully measure the three dimensional information of the weld pool surface and the extracted results coincide with the actual measurement well. The error of width, length and convexity is 0.8%, 0.6% and 4.7%, respectively. This paper provides a new method for control of 3D weld pool surface in real-time. ©, 2015, Shanghai Jiao Tong University. All right reserved.
语种	中文
出版者	Shanghai Jiao Tong University, 2200 Xietu Rd no.25,, Shanghai, 200032, China
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/112432]
专题	材料科学与工程学院省部共建有色金属先进加工与再利用国家重点实验室
作者单位	State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Zhang, Gang,Shi, Yu,Li, Chun-Kai,et al. Measurement of characteristic parameters of three dimensional weld pool surface in tungsten inert gas arc welding based on laser-vision[J]. Shanghai Jiaotong Daxue Xuebao/Journal of Shanghai Jiaotong University,2015,49(3):301-305.
APA	Zhang, Gang,Shi, Yu,Li, Chun-Kai,Fan, Ding,&Huang, Jian-Kang.(2015).Measurement of characteristic parameters of three dimensional weld pool surface in tungsten inert gas arc welding based on laser-vision.Shanghai Jiaotong Daxue Xuebao/Journal of Shanghai Jiaotong University,49(3),301-305.
MLA	Zhang, Gang,et al."Measurement of characteristic parameters of three dimensional weld pool surface in tungsten inert gas arc welding based on laser-vision".Shanghai Jiaotong Daxue Xuebao/Journal of Shanghai Jiaotong University 49.3(2015):301-305.