Constant current vs. constant power control in AC resistance spot welding

doi:10.1016/j.jmatprotec.2015.04.016

	Constant current vs. constant power control in AC resistance spot welding
	Zhou K(周亢)1,2 ; Cai LL 2; Yao P 3
发表期刊	Journal of Materials Processing Technology
	2015-09
卷号	223 页码:299-304
ISSN	0924-0136
摘要	Constant 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.;
关键词	Control Strategy Constant Current Control Constant Power Control Nugget Growth
学科领域	机械制造自动化
DOI	10.1016/j.jmatprotec.2015.04.016
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000356106600032
课题组名称	LHD微尺度和非平衡流动
论文分区	二类/Q1
引用统计	被引频次：16[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/58695
专题	高温气体动力学国家重点实验室
作者单位	1.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,
推荐引用方式 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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