Study on nugget growth in resistance spot welding of thin aluminum a1100 using welding simulation

Ario Sunar Baskoro, Andreas Edyanto, Muhammad Azwar Amat, Hakam Muzakki

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

Resistance spot welding (RSW), generally which is one of the most often used to joint metal plate in the automotive and aviation industries. RSW welding process involves electrical, thermal-mechanical, metallurgy, and complex surface phenomenon. Unlike the other welding processes, weld joint formation in RSW process occurs very quick (in milli-seconds) and took place between the workpieces overlap each other. Welding simulation allows visual examination of the weld joint without having to perform an expensive experiment. Weld nugget size is the most important parameter in determining the mechanical behavior of welded joints in RSW process. The quality and strength of the weld joint in RSW process is predominantly determined by the shape and size of the weld nugget. Simulation modeling of RSW process performed using ANSYS Parametric Design Language (APDL) module based on the finite element method (FEM), embedded in ANSYS Workbench. Electrical and transient-thermal interaction was developed to study the weld nugget growth on resistance spot welding of aluminum A1100 metal plate with a thickness of 0.4 mm respectively. Weld nugget diameter can be well predicted by using this simulation model from the temperature distribution during the welding process. Welding is performed by varying the weld current (1 kA and 2 kA) and the welding time for each electric current, which are start from 0.5, 1.0, and 1.5 cycle time. Nugget diameter for each of the welding parameters from the simulation modelling were 4,276 mm, 4,372 mm, 4,668 mm, 5,616 mm and 5,896 mm. Weld expulsion occurred for the specimen with welding current 2 kA and welding time 1.5 cycle time, characterized by the decreasing of the tensile-shear strength of the specimen.

Original languageEnglish
Title of host publicationAdvanced Materials Research - QiR 15
EditorsArdiyansyah Yatim
PublisherTrans Tech Publications Ltd
Pages191-199
Number of pages9
ISBN (Print)9783035712667
DOIs
Publication statusPublished - 1 Jan 2018
Event15th International Conference on Quality in Research, QiR 2017 - Nusa Dua, Bali, Indonesia
Duration: 24 Jul 201727 Jul 2017

Publication series

NameMaterials Science Forum
Volume929 MSF
ISSN (Print)0255-5476

Conference

Conference15th International Conference on Quality in Research, QiR 2017
CountryIndonesia
CityNusa Dua, Bali
Period24/07/1727/07/17

Keywords

  • Aluminum A1100
  • Finite Element Analysis
  • Resistance Spot Welding (RSW)
  • Temperature Distribution
  • Weld Nugget

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