Effects of Ultrasonics-Assisted Face Milling on Surface Integrity and Fatigue Life of Ni-Alloy 718

被引:116
作者
Suarez, Alfredo [1 ]
Veiga, Fernando [1 ]
Lopezde Lacalle, Luis N. [2 ]
Polvorosa, Roberto [2 ]
Lutze, Steffen [3 ]
Wretland, Anders [4 ]
机构
[1] Tecnalia R&I, Adv Mfg Dept, San Sebastian 20009, Spain
[2] Univ Basque Country, Fac Engn Bilbao, Dept Mech Engn, Alameda Urquijo S-N, Bilbao 48013, Spain
[3] GFE Gesell Fertigungstech & Entwicklung Schmalkal, D-98574 Schmalkalden, Germany
[4] GKN Aerosp Engine Syst AB, S-46181 Trollhattan, Sweden
关键词
Alloy; 718; face milling; fatigue; surface integrity; ultrasonic-assisted milling; TITANIUM-ALLOY; WEAR; MACHINABILITY; INCONEL-718; IMPROVEMENT; FREQUENCY; BEHAVIOR;
D O I
10.1007/s11665-016-2343-6
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
This work investigates the effects of ultrasonic vibration-assisted milling on important aspects such us material surface integrity, tool wear, cutting forces and fatigue resistance. As an alternative to natural application of ultrasonic milling in brittle materials, in this study, ultrasonics have been applied to a difficult-to-cut material, Alloy 718, very common in high-temperature applications. Results show alterations in the sub-superficial part of the material which could influence fatigue resistance of the material, as it has been observed in a fatigue test campaign of specimens obtained with the application of ultrasonic milling in comparison with another batch obtained applying conventional milling. Tool wear pattern was found to be very similar for both milling technologies, concluding the study with the analysis of cutting forces, exhibiting certain improvement in case of the application of ultrasonic milling with a more stable evolution.
引用
收藏
页码:5076 / 5086
页数:11
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