Surface Integrity Investigation for Milling PA 6/MWCNT

In this study, surface integrity of polyamide 6/multiwalled carbon nanotube composite has been investigated after end-milling. Nanocomposite samples were produced with 3.5 wt% of filler using friction stir process. X-ray diffraction and scanning electron microscopy were used to study properties of the fabricated nanocomposite. The end-milling was carried out at different levels of spindle speed and feed per tooth to study the resulting surface integrity. Optical microscopy was used to analyze surface morphology. According to the results, surface quality increases due to decrease of feed per tooth and increase of spindle speed. Additionally, carbon nanotubes improve surface quality.