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Industry 4.0: correlation analysis applied to the hot stamping of AA7075 B-pillars pre-assembled using friction stir welding

From National Research Council Canada

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DOIResolve DOI: https://doi.org/10.3390/engproc2023043015
AuthorSearch for: 1; Search for: 1; Search for: 1ORCID identifier: https://orcid.org/0000-0003-0168-9092; Search for: 1; Search for: 1
Affiliation
  1. National Research Council of Canada. Automotive and Surface Transportation
FormatText, Article
Conference15th International Aluminium Conference, INALCO 2023, October 11-13, 2023, Québec City, Canada
Subject7075 aluminum alloy; process chain; hot stamping; feature engineering; data analysis; Pearson correlation; cyber physical system (CPS)
Abstract
In this study, 220 AA7075-T6 B-pillars were fabricated using a thoroughly instrumented hot-stamping press under varied conditions. Feature engineering work identified nineteen attributes of the hot-stamping process as impacting four characteristics of the obtained B-pillars: electrical conductivity (%IACS), mechanical strength, distortion, and the presence of visible defects. Pearson correlation suggests an important correlation between the heating phase and the mechanical strength, as well as the %IACS values. As for distortion, the influence of the stamping phase is more obvious. Finally, no correlation was obtained between the hot stamping attributes and the presence of visible cracks. This is mainly due to the pre-assembly phase, i.e., Friction Stir Welding, which will be considered in future works.
Publication date
PublisherMDPI
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In
  • INALCO 2023, 15 (14 September 2023).
Series
  • Engineering Proceedings, no. 1.
LanguageEnglish
Peer reviewedYes
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Record identifier9c73b1cf-8e8a-40d7-997a-5bd0991fcca7
Record created2024-04-25
Record modified2024-04-25
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