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Preheated (Heat-Assisted) Clinching Process for Al/CFRP Cross-Tension Specimens

Authors
  • Lin, Pai-Chen1
  • Fang, Jun-Chang1
  • Lin, Jia-Wei1
  • Tran, Xuan Van
  • Ching, Yern-Chee
  • 1 (J.-W.L.)
Type
Published Article
Journal
Materials
Publisher
MDPI AG
Publication Date
Sep 19, 2020
Volume
13
Issue
18
Identifiers
DOI: 10.3390/ma13184170
PMID: 32961763
PMCID: PMC7560501
Source
PubMed Central
Keywords
License
Green

Abstract

Effects of processing parameters on preheated (heat-assisted) clinching process to join aluminum alloy 5052-H32 (AA5052) and thermoplastic carbon-fiber-reinforced-plastic (TP-CFRP) sheets for cross-tension (CT) specimens were first studied. Preheating was critical since brittle TP-CFRP could be softened to avoid fracturing or cracking during clinching process. Four processing parameters, including punching force, die depth, heating mode, and heating temperature, were considered. Quasi-static tests and microscope observations were taken to evaluate AA5052/TP-CFRP clinch joints in CT specimens and determine appropriate processing parameters for fatigue tests. Finally, fatigue data and failure mode of clinch joints in CT specimens were obtained and discussed.

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