Akademik Veri Yönetim Sistemi
Journal of Thermoplastic Composite Materials, 2026 (SCI-Expanded, Scopus)
This study investigates the drilling performance of Polyamide 6 (PA6) composites reinforced with 30 wt% rock wool mineral fiber. The composite plates were fabricated via twin-screw extrusion and injection molding. Drilling experiments were performed on a 3-axis CNC machine using HSS, TiN-coated HSS, and Carbide bits to evaluate delamination, surface roughness (µm), and thrust force. Results indicated that higher cutting speeds generally reduced delamination by enhancing bit stability, whereas increased feed rates raised surface roughness due to higher cutting forces and vibrations. Specifically, at 20 m/min cutting speed and 0.1 mm/rev feed rate, the carbide drill bit achieved the lowest delamination factor (5.115) compared to HSS (5.23). Among the tested tools, carbide bits demonstrated the most effective performance regarding initial hole quality and delamination control. While advantageous for structural integrity, further quantitative research on wear progression is required to comprehensively evaluate long-term tool life.