Ultrasonic Vibration Drilling Technology Optimization and Quality Analysis of CFRP Material for Vehicle
In order to improve the drilling performance of hard-to-machining reinforced carbon fiber composites(CFRP),ultra-sonic vibration was added on the basis of spiral milling.Different process conditions were designed to test CFRP ultrasonic vibra-tion spiral milling hole.The cutting force differences of CFRP ultrasonic assisted spiral milling hole under different conditions were compared,and the processing quality of the hole was tested.The results show that the above delamination phenomenon can be avoided when the ultrasonic vibration spiral milling method is used to ensure that the fiber in the same part and the resin ma-trix form a closer structure.Considering the influence of process parameters on cutting force and cutting temperature,it is quite ex-cellent to determine the range of parameters:spindle speed 4000r/min,pitch 0.15mm,tangential feed 0.04mm.The delamina-tion state of CFRP is affected by cutting edge sharpness and material removal rate.Adjusting process parameters can effectively control the amount of material removal,and play a good regulating effect on cutting force and cutting temperature,so as to re-duce the delamination damage.
NETL
NSTL
万方数据
