预浸料厚坯超声切割工艺研究  

Study on Ultrasonic Cutting Technology for Thick Prepreg Slabs

作　　者：宋清华[1] 李勇[1] 肖军[1] 张向阳[1] 李丽丽[2] 

机构地区：[1]南京航空航天大学材料科学与技术学院,江苏南京210016 [2]中航工业哈尔滨飞机工业集团有限责任公司,黑龙江哈尔滨150066

出　　处：《航空学报》2013年第6期1445-1451,共7页Acta Aeronautica et Astronautica Sinica

基　　金："高档数控机床与基础制造装备"国家科技重大专项(2010ZX04016-013)~~

摘　　要：预浸料厚坯超声切割技术,具有无刀具磨损、加工速度快、加工精度高、无粉尘污染等优势,切割质量优异,在国外已得到了广泛应用,而国内目前仍处于初期研究阶段。本文以航空航天应用为主的碳纤维预浸料厚坯为实验材料,研究了切割温度、切割速度以及切割能量等切割工艺参数对切割质量的影响。研究结果表明,对于一定厚度的预浸料厚坯,最优的切割工艺参数组合:切割温度为5℃,切割速度为1.0m/min,切割能量为8级。该研究方法与研究成果为超声切割技术在预浸料切割中的应用奠定了基础。Ultrasonic cutting for prepreg slabs, with no tool wear, fast processing speed, high precision, no dust pollution, and other advantages, has been widely applied abroad for its excellent cutting quality, while in China the technology is still at an early stage of application. This paper presents a preliminary study of the influence of cutting temperature, cutting speed and cutting energy in the ultrasonic cutting process on cutting quality using carbon fiber prepreg as the experimental material. This study shows that for thick prepreg slabs with a certain thickness, the optimal cutting process parameter com- bination is for the cutting temperature to be 5 ~C, cutting speed to be 1.0 m ~ rain-i, and cutting energy at level eight. This study can provide some ground work for the application of the technology of ultrasonic cutting for prepreg.

关 键 词：超声切割 预浸料厚坯 切割温度 切割速度 切割能量 

分 类 号：V258.3[一般工业技术—材料科学与工程] TB332[航空宇航科学与技术—航空宇航制造工程]