Frequency characteristics of weld pool oscillation in pulsed gas tungsten arc welding

doi:10.1016/j.jmapro.2016.08.010

	Frequency characteristics of weld pool oscillation in pulsed gas tungsten arc welding
	Shi, Yu 2; Li, Chunkai 1,2; Du, Leiming 1; Gu, YuFen 2; Zhu, Ming 2
刊名	JOURNAL OF MANUFACTURING PROCESSES
	2016-10
卷号	24 页码:145-151
关键词	Weld pool oscillation Degree of weld joint penetration Frequency characteristics Control of joint penetration
ISSN号	1526-6125
DOI	10.1016/j.jmapro.2016.08.010
英文摘要	A direct relationship exists between the frequency of weld pool oscillation and weld joint penetration. In this paper, a novel laser vision method to detect the weld pool oscillation frequency in traveling pulsed gas tungsten arc welding was proposed. Several experiments with varying weld joint penetrations for traveling welding were conducted, and the frequency was extracted using an image-processing algorithm. The characteristics of weld pool oscillation frequency with different joint penetrations were analyzed from two aspects: surface oscillation and internal flow of liquid metal in the weld pool. Results show an oscillated mode of weld pool surface and an internal flow of partial and full joint penetration, which indicate a single oscillation frequency. In critical joint penetration, weld pool oscillation has the features of partial and full joint penetration, and generate two oscillation frequencies. This study provides a forceful foundation for the accurate detection of different joint penetration statuses. (C) 2016 The Society of Manufacturing Engineers. Published by Elsevier Ltd. All rights reserved.
资助项目	Pre-research of National Basic Research Program of China[2014CB660810] ; National Natural Science Foundation of China[51305189] ; State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals of China[SKLAB 020114208] ; Natural Science Foundation of Gansu Province of China[145RJZA119] ; Hong Liu outstanding Talent Training Plan of Lanzhou University of Technology of China[J201201]
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000389393500016
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/33573]
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
通讯作者	Shi, Yu
作者单位	1.Lanzhou Univ Technol, Minist Educ, Key Lab Nonferrous Met Alloys & Proc, Lanzhou 730050, Peoples R China 2.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Shi, Yu,Li, Chunkai,Du, Leiming,et al. Frequency characteristics of weld pool oscillation in pulsed gas tungsten arc welding[J]. JOURNAL OF MANUFACTURING PROCESSES,2016,24:145-151.
APA	Shi, Yu,Li, Chunkai,Du, Leiming,Gu, YuFen,&Zhu, Ming.(2016).Frequency characteristics of weld pool oscillation in pulsed gas tungsten arc welding.JOURNAL OF MANUFACTURING PROCESSES,24,145-151.
MLA	Shi, Yu,et al."Frequency characteristics of weld pool oscillation in pulsed gas tungsten arc welding".JOURNAL OF MANUFACTURING PROCESSES 24(2016):145-151.