Charization of Surface Microscopic of Nomex Honeycomb after Ultrasonic Assisted Cutting

doi:10.3901/JME.2017.19.090

Abstract

Abstract: Nomex honeycomb composite material is a kind of typical hardworking material, with the characteristic of anisotropy. Ultrasonic assisted cutting is a kind of high-efficient method that can get better macro processing morphology when processing honeycomb composite materials. Nomex honeycomb composite material with method of ultrasonic assisted cutting would arise varying degree of manufacturing deficiency that contains fiber pulling and the peeling off phenolic resin. In order to research the microscopic shape characteristic bringing by ultrasonic assisted cutting. Machined surfaces are observed by digital microscope, and classified by the cutting modes which contains lengthwise cutting, oblique cutting, and across cutting. Processing plane is summarized by the location of feature. Influence of feed rate and ultrasonic tool amplitude to the damage forms are researched. The result shows that the probability of phenolic resin peeling would be reduce when increasing amplitude in the range of 10μm to 30μm or decreasing feed rate of ultrasonic tool in the range of 500 mm/min to 3 500 mm/min.

Key words: Nomex honeycomb composite material, shape characteristic, ultrasonic assisted cutting

CLC Number:

TH162
V261

ZHANG Xun, DONG Zhigang, WANG Yidan, XU Zengdi, SONG Hongxia, KANG Renke. Charization of Surface Microscopic of Nomex Honeycomb after Ultrasonic Assisted Cutting[J]. Journal of Mechanical Engineering, 2017, 53(19): 90-99.

References

[1] 金成柱. NOMEX蜂窝材料高速加工工艺及固持可靠性研究[D]. 杭州:浙江大学, 2006. JIN Chengzhu. Study on high speed machining process and reliability of fixture method for Nomex honeycomb[D]. Hangzhou:Zhejiang University,2006.
[2] KE Yinglin,JIN Chengzhu,LIU Gang|, et al. Optimization of high-speed milling prosess for Nomex honeycomb[J]. China Mechanical Engineering,2006,17(12):1299-1302.
[3] FOO C C,CHAI G B,SEAH L K. Mechanical properties of Nomex material and Nomex honeycomb structure[J]. Composite Structures,2007,80(4):588-594.
[4] 张胜文. 纸蜂窝件数控加工方法[J].金属加工,2009(16):25-28 ZHANG Shengwen. Paper honeycomb CNC machining mechod[J]. Machinist Metal Forming,2009(16):25-28.
[5] 张超海, 龚清洪. Nomex蜂窝芯结构零件超声切割与传统数控加工的对比研究[C]//全国复合材料学术会议, 2012. ZHANG Chaohai, GONG Qinghong. Contrast research of ultrasonic cutting technology and traditional high-speed machining method for processing honeycomb sandwich structure[C]//National Conference on Composite Materials,2012.
[6] KIM D S,LEE J R. Compressive mechanical properties of the Nomex/thermoset honeycomb cores[J]. Polymers for Advanced Technologies,1997,8(1):1-7.
[7] GORNET L. Modeling of Nomex honeycomb cores,linear and nonlinear behaviours[J]. Mechanics of Advanced Materials & Structures,2007,14(8):589-601.
[8] REDDY J N. Mechanics of advanced materials and structures[J]. London:Taylor and Francis Ltd,2006.
[9] 盛磊. 蜂窝夹层结构芯子塌垮的工艺分析[J]. 航天制造技术,1994(6):27-30. SHENG Lei. Processing analysis of honeycomb sandwich structure core collapse[J]. Aerospace Manufacturing Technology,1994(6):27-30.
[10] AKTAY L,JOHNSON A F,HOLZAPFEL M. Prediction of impact damage on sandwich composite panels[J]. Computational Materials Science,2005,32(3):252-260.
[11] AKTAY L,JOHNSON A F,KRÖPLIN B H. Numerical modelling of honeycomb core crush behaviour[J]. Engineering Fracture Mechanics,2008,75(9):2616-2630.
[12] AMINANDA Y,CASTANIE B,BARRAU J J. Behavior of indented sandwiches structure with Nomex honeycomb core and metallic skins subjected to compressive loading (CAI)[J]. Key Engineering Materials,2007,345-346:729-732.
[13] HERUP E J,PALAZOTTO A N. Low-velocity impact damage initiation in graphite/epoxy/Nomex honeycomb-sandwich plates[J]. Composites Science & Technology,2013,57(12):1581-1598.
[14] YAO Wuwen,FENG Chunxiao,LU Yang. Bonding and repairing technique for airplane honeycomb components[J/OL]. Adhesion in China,2003:1. http://en.cnki.com.cn/Article_en/CJFDTOTAL-NIAN200301022.htm.
[15] 中华人民共和国国家军用标准. GJB 1874-94飞机结构用芳纶纸基蜂窝芯材规范[S]. 北京:国防科学技术工业委员会,1994. People's Republic of China National Military Standard. GJB 1874-94 Specification of paper honeycomb material for aircraft[S]. Beijing:National Defense Science and Technology Industry Committee,1994.
[16] ROY R,PARK S J,KWEON J H,et al. Characterization of Nomex honeycomb core constituent material mechanical properties[J]. Composite Structures,2014,117(1):255-266.
[17] 许潮华,张小珍,宋桂枝. 新型Nomex蜂窝芯材及其制造[J]. 材料工程,1984(5):23-24. XU Chaohua,ZHANG Xiaozhen,SONG Guizhi,New type of Nomex honeycomb material and manufacturing[J]. Materials Engineering,1984(5):23-24.
[18] 黄秀秀,胡小平,于保华. 蜂窝复合材料超声切割力建模及工艺参数选择研究[J]. 机电工程,2015,32(1):32-36. HUANG Xiuxiu,HU Xiaoping,YU Baohua. Ultrasonic cutting force model of honeycomb composites and selection of processing parameters[J]. Journal of Mechanical & Electrical Engineering,2015,32(1):32-36.