TOOL WEAR OF SUPERHARD CERAMIC COATED TOOLS IN DRILLING OF CFRP/TI STACKS

被引:0
|
作者
Dinh Nguyen [1 ]
Voznyuk, Vadim [2 ,3 ]
Bin Abdullah, Mohammad Sayem [3 ]
Kim, Dave [3 ]
Kwon, Patrick Y. [1 ]
机构
[1] Michigan State Univ, E Lansing, MI 48824 USA
[2] Intel Corp, Hillsboro, OR 97124 USA
[3] Washington State Univ, Vancouver, WA 98686 USA
关键词
DIAMOND-LIKE CARBON; TITANIUM-ALLOY; CUTTING TOOLS; HOLE QUALITY; FLANK WEAR; CARBIDE; COMPOSITE; PERFORMANCE; MECHANISMS; LIFE;
D O I
暂无
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
This paper aims to investigate the effectiveness of several superhard ceramic coatings on carbide drills when drilling carbon fiber reinforced plastics (CFRP) composite/Ti-6Al-4V alloy (titanium or Ti) stacks. The drilling experiments of CFRP/Ti stack are conducted with diamond-like coating (DLC) coated, alternating layers of the nanocomposite of AlCrN & Si3N4 and TiN or (AlCrSi/TON coated, and uncoated tungsten carbide drills. Tool wear evolution of each drill is measured qualitatively as well as quantitatively using the scanning electron and confocal laser scanning microscopes (CLSM) by interrupting after making certain numbers of hole. Based on our drilling experiments, the performance of each coating when drilling CFRP/Ti stack are discussed. Among these coated and uncoated drills, uncoated and DLC coated drills failed before making 5 holes while (AlCrSi/TON coated drills performed the best making more than 80 holes. The DLC coating, despite of high hardness of DLC coating, does not provide any significant protection especially when drilling Ti layer.
引用
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页数:10
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