预浸料厚坯超声切割工艺研究

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1.0 m/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 combination is for the cutting temperature to be 5 ℃,cutting speed to be 1.0 m · min-1,and cutting energy at level eight.This study can provide some ground work for the application of the technology of ultrasonic cutting for prepreg.