Effects of cutting temperature and process optimization in drilling of GFRP composites

Erturk A. T., Vatansever F., Yarar E., Guven E. A., Sınmazçelik T.

JOURNAL OF COMPOSITE MATERIALS, vol.55, no.2, pp.235-249, 2021 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 55 Issue: 2
  • Publication Date: 2021
  • Doi Number: 10.1177/0021998320947143
  • Journal Name: JOURNAL OF COMPOSITE MATERIALS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Applied Science & Technology Source, Chimica, Communication Abstracts, Compendex, Computer & Applied Sciences, INSPEC, Metadex, Civil Engineering Abstracts
  • Page Numbers: pp.235-249
  • Keywords: Polymer-matrix composites (PMCs), machining, delamination, response surface methodology (RSM), FIBER-REINFORCED COMPOSITES, PROCESS PARAMETERS, SURFACE-ROUGHNESS, FATIGUE BEHAVIOR, EPOXY COMPOSITE, HOLE QUALITY, THRUST FORCE, DELAMINATION, DAMAGE, MACHINABILITY
  • Kocaeli University Affiliated: Yes

Abstract

The present work deals with temperature effects and parametric optimization in the drilling of continuous glass fiber reinforced epoxy composite. Drilling ability was examined operating a drilling system with different drill bits, feed rate, and spindle speed parameters. The investigation was performed by changing the tool and composite interface. Drilling experiments were carried out under the dry condition. Thrust force and drilling temperatures were measured using dynamometer and thermal camera. Peel-up and push-out delamination were evaluated using an image analyzing tool. Results show that the tribo-mechanical behavior of the drilling operation is affected at different levels by tool coating. This behavior is related to the intrinsic friction properties of coating nature. Response surface methodology was used in the evaluation of experiment results. The feed rate of 0.13 mm/rev, spindle speed of 2425 rpm and HSS-TiN drill bit are found as an optimum drilling parameters and drill type.