Time domain and frequency domain of coated milling inserts using FFT spectrum

ABSTRACT

Quality is determined by machines, materials, equipment, and lead times. The quality of aircraft materials such as aluminum and its alloys could greatly improve their applications. The difficulty of efficiently and reasonably machining certain materials limits their applicability. The purpose of this paper is to increase the quality of the vibration responses. Specifically, we examine the effects of the machining parameters on vibration (Time and Frequency domains). The end milling process is used to machine the AA6082T6 workpiece material. Speed (S), feed (F), depth of cut (DoC), and coated cutting inserts are the machining parameters. Tungsten carbide inserts (UNC), tungsten carbide inserts coated with Aluminum Chromium Nitride (AP3), and tungsten carbide inserts coated with Diamond-Like Carbon (DLC) were employed in this study. The minimum amplitude of 0.1173 g (m/s²) is seen at 710 rpm, 40 mm/min, and 0.5 mm of the DLC coated tool at a frequency of 930 Hz, according to the data. By comparing it to other cutting inserts, the DLC coated tool is given the smallest amplitude and minimum time domain. According to the findings, if the DLC coated insert is used in the machining process, the material’s surface finish will be much enhanced, and the material had good mechanical qualities.

KEYWORDS:

• FFT
• UNC
• AP3
• DLC
• end milling
• inserts
• process
• qualities

Acknowledgement

We thank Oerlikon Balzers private limited, Chennai, for providing the DLC & AP3 coatings. Karunya University, Coimbatore, Koneru lakshmaiah university, Vijayawada, for supporting in using FFT analyzer results and gratefully acknowledged.

Disclosure statement

No potential conflict of interest was reported by the authors.