摘要
由碳纤维复合材料和钛合金组成的叠层材料加工越来越受到飞机制造业的青睐。对该材料的加工需要钻削大量的连接孔。本文基于有限元仿真,分别针对CFRP/Ti叠层板和CFRP单板进行钻孔模拟,分析切削参数对轴向力和加工质量的影响。结果表明,采用大的主轴转速和小的进给速度能够减小碳纤维复合材料部分的轴向力,从而改善其出口质量。此外,在碳纤维复合材料下添加金属衬板,也可以有效地减小其出口分层。
The stacks consisted of carbon fiber reinforced plastics and titanium is used increasingly in aerospace man- ufacture. A number of holes need to be drilled in the multi - material stacks. In this study, finite element models of drill- ing of CFRP/Ti stacks and CFRP are established separately, in order to analyze the effect of cutting parameters on the thrust forces and machining qualities. The results show that the thrust forces of drilling carbon fiber reinforced plastics would decrease when using high spindle speed and low feet rate, then improve the machining qualities accordingly. Besides, the use of metal sealeboard under the carbon fiber reinforced plastics could also reduce the delamination effectively at hole exit.
出处
《工具技术》
北大核心
2015年第1期24-28,共5页
Tool Engineering
关键词
碳纤维复合材料
钛合金
钻削
有限元仿真
carbon fiber reinforced plastics
titanium
drill
finite element simulation
作者简介
金晓波，高级工程师，成都飞机工业（集团）有限责任公司技装设计所，610092成都市
