CFRP/Ti6Al4V叠层构件大螺距螺旋铣孔试验研究  

Experimental Investigation on Orbital Drilling of CFRP/Ti6Al4V Stacks with Big Pitch

作　　者：单以才[1,2] 何宁[2] 杨吟飞[2] 章婷[3] 

机构地区：[1]南京信息职业技术学院机电学院,江苏南京210023 [2]南京航空航天大学机电学院,江苏南京210016 [3]南京工程学院机械工程学院,江苏南京210067

出　　处：《机械设计与制造》2015年第5期103-106,共4页Machinery Design & Manufacture

基　　金：科技重大专项项目资助(2012ZX04003-031);江苏省青蓝工程项目资助(2012-12)

摘　　要：提出了一种大螺距螺旋铣孔工艺。首先,通过对切削参数协同优化、加工设备性能需求等方面的深入分析,探讨了该项工艺实施的可行性。接着,进行了CFRP/Ti6Al4V叠层构件大螺距螺旋铣孔与钻孔的对比试验。分析发现,大螺距螺旋铣孔的孔口与壁面质量及贴合面处孔径精度都优于钻孔;层间切削力突变,Ti6Al4V高温切屑烧(划)伤CFRP壁面等问题,使大螺距螺旋铣削叠层构件的贴合面处孔径精度和孔面质量仍需进一步提高。研究成果为后续探索大螺距螺旋铣孔的工艺优化措施提供了一定的试验依据。An orbital drilling with big pitch was put forward. First,through deeply analyzing collaborative optimization of cutting parameters and performance requirements of processing equipment,results show that the process could be feasibly applied to aviation industry. Then,contrast test was performed for big pitch orbital drilling of CFRP/Ti6Al4 V stacks with push drilling. Analysis found that the quality of hole orifice and surface,and the accuracy at the joint surface during orbital drilling with big pitch was better than that in push drilling. But lamination could bring about the sudden transformation of cutting force between layers,the burn and scratch of CFRP hole surface when high temperature chip of Ti6Al4 V was removed. During orbital drilling with big pitch of laminated components,hole precision and surface quality at the joint surface should be improved. Research achievements provides experimental basis for deeply exploring optimization measures of orbital drilling with big pitch.

关 键 词：CFRP/Ti6Al4V叠层构件 钻孔 螺旋铣孔 大螺距进给 

分 类 号：TH16[机械工程—机械制造及自动化]