Analysis of the efficiency of pulsed preheating in resistance flash butt welding
作者: ErofeevP’Yankov
作者单位: 1The Tula State University
2Sistemnaya dinamika , Moscow
刊名: Welding International, 2018, Vol.32 (11), pp.703-708
来源数据库: Taylor & Francis Journal
DOI: 10.1080/09507116.2017.1398910
关键词: Flash butt resistance weldingPreheating before flowingMachine plate reversingPhysics-mathematical modelOptimal parameters
原始语种摘要: ABSTRACT(#br)The problem of determination of the parameters of preheating of the edges prior to flashing in reversing movement of the movable platen of the welding machine is investigated. The physical-mathematical model of pulsed preheating is described. The numerical solution of the equations of the model makes it possible to determine the optimum period of oscillations of the movable platen of the machine, upset force and the duration of closure of the welded joint, the supply voltage and the number of preheat periods. The optimum values were obtained for the duration of closure of the welded joint which is slightly shorter than the period of oscillations of the movable platen of the welding machine and the compression force, at which the electrical resistance of the joint is equal to...
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关键词翻译
关键词翻译
  • preheating 预加热
  • machine 机器
  • welding 熔结
  • resistance 抵抗
  • flash 闪光
  • mathematical 数学的
  • duration 持续时间
  • compression 压缩
  • welded 熔焊
  • platen 压板