A Tool Life Prediction Model Based on Taylor's Equation for High-Speed Ultrasonic Vibration Cutting Ti and Ni Alloys

被引:11
|
作者
Zhang, Xiangyu [1 ,2 ,3 ]
Peng, Zhenlong [4 ,5 ]
Liu, Liangbao [6 ]
Zhang, Xi [7 ,8 ]
机构
[1] Tsinghua Univ, Dept Mech Engn, Beijing Key Lab Precis Ultraprecis Mfg Equipments, Beijing 100084, Peoples R China
[2] Tsinghua Univ, Dept Mech Engn, State Key Lab Tribol, Beijing 100084, Peoples R China
[3] Beihang Univ, Sch Mech Engn & Automat, Beijing 100091, Peoples R China
[4] Zhengzhou Univ, Sch Mech & Power Engn, Zhengzhou 450001, Peoples R China
[5] Zhengzhou Univ, Henan Key Engn Lab Antifatigue Mfg Technol, Zhengzhou 450001, Peoples R China
[6] Beihang Univ, Res Inst Aeroengine, Beijing 100191, Peoples R China
[7] Shanghai Jiao Tong Univ, State Key Lab Mech Syst & Vibrat, Shanghai 200240, Peoples R China
[8] Kunming Shipbldg Equipment Res & Test Ctr, Kunming 650051, Yunnan, Peoples R China
基金
中国国家自然科学基金;
关键词
tool life; high-speed machining; ultrasonic vibration cutting; difficult-to-cut alloys; cooling; HIGH-PRESSURE COOLANT; SURFACE INTEGRITY; WEAR MECHANISMS; INCONEL; 718; DRY; TITANIUM; MACHINABILITY; TEMPERATURE; PERFORMANCE; FORCES;
D O I
10.3390/coatings12101553
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A high-speed ultrasonic vibration cutting (HUVC) method has been proposed for the precision machining of Ti and Ni alloys with high efficiency and fine surface quality in recent years. During the HUVC, the tool life can be enhanced significantly at a relatively high cutting speed. The effective cooling due to the tool-workpiece separation resulting from the ultrasonic vibration is regarded as the primary reason for these advantages. In order to figure out the influences of effective cooling and ultrasonic vibration for further understanding of the mechanism of HUVC and guidance of practical engineering, a quantitative relationship between the tool life and cutting conditions (including cutting, ultrasonic and cooling parameters) needs to be built. Therefore, in this paper, a tool life prediction model based on Taylor's equation was established. Both the cooling contribution during the separation interval and tool impact resulting from the ultrasonic vibration were added to be considered. Then, experiments were conducted and the results showed that the separation effect with effective cooling was the main reason for the considerable benefits of HUVC. Although the impact was inevitable, high-speed, stable cutting regions of Ti and Ni alloys could still increase to 200-450 and 80-300 m/min, respectively. The prediction model could be used to optimize the cutting parameters and monitor the machining process according to the actual machining requirements.
引用
收藏
页数:22
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