碳纤维增强复合材料成型槽铣削的试验研究

Experimental Research on Milling Forming Slot of CFRP

碳纤维增强复合材料(CFRP)属于典型的难加工材料。通过改变加工工艺参数,使用硬质合金成型铣刀,研究了碳纤维复合材料成型槽铣削时铣削力随铣削速度和进给速度的变化关系,并分析了铣削出口表面的加工缺陷及其与铣削力的变化关系。试验结果表明:铣削力随铣削速度的升高而降低,随进给量的增大而减小;铣削出口处表面主要缺陷为撕裂、毛刺和材料未切断等,其中撕裂为主要缺陷且撕裂面积随铣削力的变大而增大。

Carbon Fiber Reinforced Plastic （CFRP）is a typically hard machining material. The changing relationship between the milling speed and feeding rate along with milling force was researched during milling forming slots of CFRP,by using the forming tool of carbon carbide with the different technological parameters in machining. The machining fault on exit surface of milling and its changing relationship in regard with milling force were analyzed. The experimental results have shown that the milling force is lowered with a higher milling speed,and is reduced with increasing of feeding rate. The fault of the exit surface of milling is mainly delamination,burr and non-cutting off of materials,and the area of delamination is increased with getting higher of milling force.