Numerical analysis of wavy interface formation and successive temperature change in magnetic pulse welded Al/Cu joint

Junto Nishiwaki, Takashi Kambe, Yasutaka Kedo, Yohei Harada, Shinji Muraishi, Shinji Kumai

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

Abstract

Magnetic pulse welding (MPW) which is one of the impact welding methods is suitable for a wide variety of combinations of similar and dissimilar metals. The flyer plate is accelerated by electromagnetic force and collided to the parent plate. A characteristic wavy interface is formed. The impact velocity and impact angle of the flyer plate during impact are important parameters which affect the interface morphology. In the case of dissimilar metals (e.g. Al/Cu, Al/Fe), the intermediate layer (such as intermetallic compound (IMC)) is formed by wavy interface formation and local temperature increase. The intermediate layer often decreases the bonding strength. Wavy interface formation mechanism and temperature increase at the joint interface should be investigated in order to obtain the dissimilar metal joint with high bonding strength. In this study, the impact velocity and impact angle of the flyer plate were obtained by using ANSYS Emag-Mechanical. Based on the obtained impact velocity and impact angle of the flyer plate in the MPW, the wavy interface formation and temperature change were reproduced by using ANSYS Autodyn for solving non-liner dynamics problems. Al sheets and Cu sheets were joined by the MPW. The joint interface was observed by OM and SEM and compared to the simulation result.

Original languageEnglish
Title of host publicationThe 15th International Conference on Aluminium Alloys, ICAA
EditorsQing Liu, Robert Sanders, Zhihong Jia, Lingfei Cao, Jian-Feng Nie, Jian-Feng Nie
PublisherTrans Tech Publications Ltd
Pages655-661
Number of pages7
ISBN (Print)9783035710502
DOIs
Publication statusPublished - 2017
Event15th International Conference on Aluminium Alloys, ICAA 2016 - Chongqing, China
Duration: Jun 12 2016Jun 16 2016

Publication series

NameMaterials Science Forum
Volume877
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference15th International Conference on Aluminium Alloys, ICAA 2016
CountryChina
CityChongqing
Period6/12/166/16/16

Keywords

  • ANSYS emag
  • ANSYS mechanical
  • Bonding strength
  • Magnetic pulse welding (MPW)
  • Metal jet
  • Simulation
  • Temperature distribution

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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