Analytical approach for magnetic pulse welding of sheet connections

被引：37
作者：
Hahn, Marlon [1 ]
Weddeling, Christian [1 ]
Lueg-Althoff, Joern [1 ]
Tekkaya, A. Erman [1 ]
机构：
[1] TU Dortmund Univ, Inst Forming Technol & Lightweight Construct IUL, Baroper Str 303, D-44227 Dortmund, Germany
来源：
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2016年 / 230卷
关键词：
Magnetic pulse welding (MPW); Lightweight structures; Analytical model; Impact velocity; ACTUATOR; TOOL;
D O I：
10.1016/j.jmatprotec.2015.11.021
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
An analytical model to calculate the acting forming pressure in magnetic pulse welding by determining the magnetic field strength between the flyer sheet and a one-turn coil was presented. By neglecting plastic deformation of the flyer, the model allows to calculate the transient velocity and displacement behavior, too. The electromagnetic acceleration of 5000-series aluminum alloy sheets was investigated under various experimental parameters. Utilizing Photon Doppler Velocimetry revealed that the analytical model appropriately describes the influence of current amplitude, coil geometry, and, especially, discharge frequency on the velocity-displacement curve of the flyer and hence on the impact velocity. The model introduced was applied to compute the impact velocity for the welding of long lap joints of 5000-series aluminum alloy sheets and 6000-series aluminum alloy hollow profiles. Through peel tests it was shown that the weld strength at least complied with the strength of the weaker base material as failure always happened in the flyer sheet. The wavy interface pattern typical for impact welding was identified with the help of metallography. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：131 / 142
页数：12
相关论文
共 29 条
  • [1] Aizawa T., 2003, WELD INT, V17, P929, DOI [10.1533/wint.2003.3199, DOI 10.1533/wint.2003.3199]
  • [2] [Anonymous], 2015, ALUSELECT DAT
  • [3] [Anonymous], P 3 INT C HIGH SPEED
  • [4] Wave formation mechanism in magnetic pulse welding
    Ben-Artzy, A.
    Stern, A.
    Frage, N.
    Shribman, V.
    Sadot, O.
    [J]. INTERNATIONAL JOURNAL OF IMPACT ENGINEERING, 2010, 37 (04) : 397 - 404
  • [5] Buehler H., 1968, WERKSTATT BETR, V110, P513
  • [6] Daehn G. S., 2010, INTELLIGENT ENERGY F, P471
  • [7] Gies S., 2014, P 6 INT C HIGH SPEED, P315
  • [8] Gobel G., 2010, 4th International Conference on High Speed Forming, P127
  • [9] Harvey GW, 1958, US-Patent, Patent No. [2,976,907, 2976907]
  • [10] Heaviside O., 1951, Electromagnetic Theory
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