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Study on bubble morphology at interface of laser direct joint between carbon fiber reinforced thermoplastic (CFRTP) and titanium alloy

  • Hongyan Yang , Xiaohong Zhan EMAIL logo , Hengchang Bu , Wanping Ma and Feiyun Wang
Published/Copyright: September 16, 2020
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Journal of Polymer Engineering
From the journal Journal of Polymer Engineering Volume 40 Issue 10

Abstract

Laser direct joining of carbon fiber reinforced thermoplastic (CFRTP) composite plate and titanium alloy plate with a thickness of 2 mm was performed with swing laser. Numerous air bubble of submillimeter size were observed inside the fusion zone of CFRTP and titanium alloy at the cross section of the joints. The air bubble characteristics were analyzed based on the morphology and size, while the formation mechanism of air bubble was further elucidated according to the nucleation mode, nucleation site and nucleation position. The results demonstrated that the nucleation modes of air bubble are substantially divided into homogeneous nucleation and heterogeneous nucleation, which is related to the nucleation sites. The nucleation mode presents a crucial factor influencing the position and morphology of air bubble. In addition, the air bubble characteristics are also determined by the clamp pressure and resin flow. The final morphology of air bubble is primarily represented by four typical types.

Keywords: air bubble; CFRTP; laser direct joining; microgroove; titanium alloy
Corresponding author: Xiaohong Zhan, College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 211106, China, E-mail:

Funding source: The Fundamental Research Funds for the Central Universities

Award Identifier / Grant number: NP2018461

  1. Author contribution: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: This research is financially supported by the Fundamental Research Funds for the Central Universities, no. NP2018461.

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Received: 2020-05-08
Accepted: 2020-07-25
Published Online: 2020-09-16
Published in Print: 2020-11-26

© 2020 Walter de Gruyter GmbH, Berlin/Boston

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https://doi.org/10.1515/polyeng-2020-0112
Keywords for this article
air bubble; CFRTP; laser direct joining; microgroove; titanium alloy

Articles in the same Issue

  1. Frontmatter
  2. Material properties
  3. Compatibility of energetic plasticizers with the triblock copolymer of polypropylene glycol-glycidyl azide polymer-polypropylene glycol (PPG-GAP-PPG)
  4. Simultaneous improvement of mechanical and conductive properties of poly(amide-imide) composites using carbon nano-materials with different morphologies
  5. Thermal and mechanical behavior of SBR/devulcanized waste tire rubber blends using mechano–chemical and microwave methods
  6. Preparation and assembly
  7. Development and characterization of ethyl cellulose nanosponges for sustained release of brigatinib for the treatment of non-small cell lung cancer
  8. Polysulfone nanofiltration membranes enriched with functionalized graphene oxide for dye removal from wastewater
  9. Zn(II)-selective poly (vinyl chloride) (PVC) membrane electrode based on Schiff base ligand 2-benzoylpyridine semicarbazone as an ionophore
  10. Effectiveness assessment of TiO2-Al2O3 nano-mixture as a filler material for improvement of packaging performance of PLA nanocomposite films
  11. Boron nitride nanoplatelets as two-dimensional thermal fillers in epoxy composites: new scenarios at very low filler loadings
  12. Engineering and processing
  13. Study on bubble morphology at interface of laser direct joint between carbon fiber reinforced thermoplastic (CFRTP) and titanium alloy
  14. Robust parameter search for IC tray injection molding using regrind resin
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