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Constant current vs. constant power control in AC resistance spot welding
Zhou K(周亢)1,2; Cai LL2; Yao P3
Source PublicationJournal of Materials Processing Technology
2015-09
Volume223Pages:299-304
ISSN0924-0136
AbstractConstant current control (CCC) and constant power control (CPC) are two of the most popular control strategies employed in resistance spot welding (RSW). They have their individual respective advantages; for example, with CCC, it is easy to control energy delivery, while CPC can deliver more heat in particular situations. CPC can be accomplished by means of CCC. The performance of CPC is not as good as that of CCC, because CPC involves more interfering elements. Dynamic resistance is employed to analyze the welding process. Corresponding analysis shows a more reliable welding process can be obtained and the first melting point can be detected earlier when CCC is employed rather than CPC. Though the overall nugget growth trends may show a very small difference when using one strategy versus the other, CCC can provide a larger nugget size because the initial energy allotment is more reasonable and the energy delivery is much steadier. We conducted experiments to validate all of the theoretical analysis. This work can serve to inform actual welding production to obtain a more reliable welding process, enable welders to choose a proper control strategy and help improve energy efficiency in practice.;
KeywordControl Strategy Constant Current Control Constant Power Control Nugget Growth
Subject Area机械制造自动化
DOI10.1016/j.jmatprotec.2015.04.016
Indexed BySCI ; EI
Language英语
WOS IDWOS:000356106600032
DepartmentLHD微尺度和非平衡流动
Classification二类/Q1
Citation statistics
Cited Times:16[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/58695
Collection高温气体动力学国家重点实验室
Affiliation1.State Key Laboratory of High-Temperature Gas Dynamics, Institute of Mechanics, Chinese Academy of Sciences;
2.Department of Mechanical and Aerospace Engineering, Hong Kong University of Science and Technology
3.College of Electromechanical Engineering, Guangdong Polytechnic Normal University,
Recommended Citation
GB/T 7714
Zhou K,Cai LL,Yao P. Constant current vs. constant power control in AC resistance spot welding[J]. Journal of Materials Processing Technology,2015,223:299-304.
APA Zhou K,Cai LL,&Yao P.(2015).Constant current vs. constant power control in AC resistance spot welding.Journal of Materials Processing Technology,223,299-304.
MLA Zhou K,et al."Constant current vs. constant power control in AC resistance spot welding".Journal of Materials Processing Technology 223(2015):299-304.
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