Investigating the influence of machining parameters and tool coatings on surface qualtiy of titanium parts in aerospace industry

Authors : Burak Kaymak, Fahrettin Öztürk

Pages : 27-35

Doi:10.28948/ngumuh.1525630

View : 51 | Download : 88

Publication Date : 2025-01-15

Article Type : Research Paper

Abstract :In the aerospace sector, most titanium components are produced through milling, which poses several challenges in achieving superior surface quality. Consequently, optimizing cutting parameters and choosing appropriate cutting tool coatings are critical factors influencing the surface roughness of these parts. This study examines the impact of depth of cut, cutting speed, and feed rate on surface roughness when milling the Ti-6Al-4V alloy. It also provides an in-depth analysis of three different coatings - Aluminum Chromium Nitride (AlCrN), tungsten-based AlCrN, and tungsten-based Aluminum Titanium Nitride (AlTiN) - in terms of surface quality. The findings reveal that cutting speed is the most significant factor affecting surface roughness in experiments conducted using the Taguchi method, with three values assigned to each parameter. Moreover, the tungsten-based AlCrN coating demonstrated the best average surface roughness values. Overall, this study offers valuable insights into factors affecting surface roughness in titanium milling and presents practical recommendations for selecting cutting parameters and tool coatings to improve surface quality in aerospace parts production. In future research, additional factors such as tool geometry and cooling strategies can also be investigated to further improve surface quality in titanium machining.
Keywords : Ti-6Al-4V, İşleme parametreleri, Frezeleme, Yüzey pürüzlülüğü, Taguchi yöntemi