Hole-making processes and their impacts on the microstructure and fatigue response of aircraft alloys

• DOI: 10.1007/s00170-016-9850-3
• Publication Date: 2016-12-14T09:31:53Z
• Authors: Dan Sun; Patrick Lemoine; Daniel Keys; Patrick Doyle; Savko Malinov; Qing Zhao; Xuda Qin; Yan Jin
• Keywords: 0203 mechanical engineering; Control and Systems Engineering; Mechanical Engineering; 02 engineering and technology; Industrial and Manufacturing Engineering; Software; 620; Computer Science Applications

A comparative study on conventional drilling and helical milling has been reported under the context of aircraft alloy hole making. The impacts these two different machining processes microstructures fatigue performance alloys have elaborated. Results show that both undergo more severe surface/subsurface plastic deformation comparing to process. Helical leads a longer coupon life compared for alloys. Al 2024-T3 is significantly than Ti-6Al-4V all conditions. use coolant generally produces less damaged surface enhanced machined In addition, roughness studied further elaborate effects processes.