钛合金对CFRP/Ti叠层构件螺旋铣孔表面质量的影响  

Effect of Titanium on Surface Quality of CFRP Holes in Helical Milling CFRP/Ti Stacks

作　　者：王奔[1,2] 王禹封 赵华 孙磊 庄鑫[1,2] 王明海 WANG Ben;WANG Yu-feng;ZHAO Hua;SUN Lei;ZHUANG Xin;WANG Ming-hai(Key Laboratory of Fundamental Science for National Defence of Aeronautical Digital Manufacturing Process,Shenyang Aerospace University,Shenyang 110136,China;Key Laboratory of Digital Manufacturing of Advanced Aviation Structure,Shenyang 110136,China)

机构地区：[1]沈阳航空航天大学航空制造工艺数字化国防重点实验室,沈阳110136 [2]沈阳市先进航空难加工结构数字化制造重点实验室,沈阳110136

出　　处：《组合机床与自动化加工技术》2020年第9期123-125,129,共4页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：国家自然基金面上项目(51875367);国家自然基金青年科学基金(51505302);辽宁省高校创新团队支持计划资助(LT2016008);沈阳市中青年科技创新人才计划项目(RC190072);辽宁省自然科学基金(2020-MS-234);中国博士后科学基金(2020M670790)。

摘　　要：为研究CFRP/Ti叠层构件螺旋铣孔时钛合金对复合材料孔表面质量的影响,通过对比复合材料孔下方有无钛合金支撑,对复合材料加工过程中的加工损伤进行分析。结果表明,无钛合金支撑的复合材料孔在稳定加工阶段轴向切削力及波动幅度较大;两种加工方式下复合材料孔入口处无明显缺陷,孔出口处存在毛刺现象;无钛合金支撑的复合材料的孔壁存在加工损伤,且出口侧存在纤维拔出。因此在CFRP/Ti叠层构件螺旋铣孔时,复合材料孔下方有钛合金支撑能有效降低复合材料在稳定加工阶段的轴向切削力及其波动幅度,还能提高复合材料孔出口质量及孔壁质量。In order to study the effect of titanium alloy on the surface quality of composite pores during helical milling of CFRP/Ti laminated components, the processing damage during the processing of composites was analyzed by comparing the presence or absence of titanium alloy support under the composite pores. The results show that the axial cutting force and fluctuation range of the composite hole supported by titanium-free alloy are large in the stable processing stage;there are no obvious defects at the entrance of the composite hole under the two processing modes, and there is burr at the exit of the hole;no titanium alloy support.There is processing damage in the pore walls of the composite material, and there is fiber extraction on the outlet side. Therefore, when the CFRP/Ti laminated member is spirally milled, the titanium alloy support under the composite hole can effectively reduce the axial cutting force and the fluctuation range of the composite material in the stable processing stage, and can also improve the quality of the composite hole outlet and wall quality.

关 键 词：螺旋铣孔 CFRP/Ti叠层 切削力 制孔质量 

分 类 号：TH16[机械工程—机械制造及自动化] TG65[金属学及工艺—金属切削加工及机床]