Research on Ultrasonic Assisted Cutting Carbon Fiber Reinforced Mg-Matrix Composite
JIANG Zhenbang1,2, YUAN Songmei1,2, LI Zhen1,2, LI Qilin1,2, SONG Xiaojun3, LI Yan3
1. School of Mechanical Engineering & Automation, Beihang University, Beijing 100191, China;
2. Beijing Engineering Technological Research Center of High-Efficient & Green CNC Machining Process and Equipment, Beijing 100191, China;
3. Beijing Hangtianxinfeng Mechanical Equipment Co., Ltd., Beijing 100854, China
This paper aims to study the machinability of carbon fiber reinforced Mg-matrix composite (Cf/Mg), the ultrasonic assisted cutting experiments of carbide milling cutters and carbide drill bits are carried out. Through orthogonal test, it is found that the milling force of ultrasound-assisted milling Cf/Mg composite increases with the increase of feed and milling depth of each tooth, and decreases with the increase of spindle speed. In the test, when ultrasonic assisted milling is carried out, the feed per tooth is 0.025mm, the milling depth is 0.2mm, and the milling force is the minimum under the processing parameters of 6000r/min. The feed per tooth is 0.025mm, the milling depth is 0.2mm, and the surface quality under the processing parameters of 4000r/min is relatively good. When single factor drilling test is carried out with carbide bit, the axial drilling force decreases with the increase of spindle speed. Compared with traditional drilling, ultrasonic assisted drilling can reduce the axial drilling force. Compared with traditional drilling, ultrasonic assisted drilling can reduce the axial drilling force by about 36% when the machine speed is 6000r/min and the feed speed of the machine is 100mm/min. Compared with traditional drilling, ultrasonic assisted drilling can decrease burr and stratification at the drilling exit.
基金资助:国家自然科学基金(U1737201)。
作者简介: 蒋振邦:硕士研究生,主要从事特种加工、复合材料加工等研究。
引用本文:
蒋振邦,袁松梅,李真,李麒麟,宋肖珺,李燕. 镁基碳纤维增强复合材料超声辅助切削试验研究[J]. 航空制造技术, 2019, 62(11): 55-62.
JIANG Zhenbang, YUAN Songmei, LI Zhen, LI Qilin, SONG Xiaojun, LI Yan. Research on Ultrasonic Assisted Cutting Carbon Fiber Reinforced Mg-Matrix Composite. Aeronautical Manufacturing Technology, 2019, 62(11): 55-62.