Decomposition of matrix in basalt fiber-reinforced composites using laser processing parameters for clear unveiling of fibers without damage

ÜRGÜN S., FİDAN S., Ozsoy M. I., BORA M. Ö.

POLYMER COMPOSITES, 2024 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Basım Tarihi: 2024
  • Doi Numarası: 10.1002/pc.29239
  • Dergi Adı: POLYMER COMPOSITES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Kocaeli Üniversitesi Adresli: Evet

Özet

This work investigates the effects of laser processing parameters on basalt fiber-reinforced composites for the optimization of surface processing without fiber damage. Various conditions of laser power, speed, and stand-off distance were applied using a CO2 laser. Consequently, a well-processed morphology with full matrix removal and clear fiber exposure was achieved under optimized conditions of 32 W power, 200 mm/s speed, and 5 mm SOD. Those parameters resulted in a surface roughness Sa of 6.11 mu m. Using the optimum parameters obtained from the experiments, the surface energy density was computed as 0.89 J/mm2, while ensuring adequate material removal without damage to the fiber. Lower power input of 20 W resulted in incomplete removal of the matrix; on the other extreme, unreasonably high powers resulted in fiber degradation. The experiments determined that optimum laser parameters indeed play a critical role in the processing of basalt fiber composites surfaces.Highlights Ideal laser settings: 32 W, 200 mm/s, 5 mm SOD. Full-matrix removal and fiber exposition realized without any damage. The achieved surface roughness Sa is 6.11 mu m for optimized laser parameters. Excessive laser power leads to a fiber damage.