OPTIMIZATION OF MACHINING PARAMETERS IN CFRP/TI STACKS DRILLING

被引:0
作者
Krishnaraj, V [1 ]
Prabukarthi, A. [1 ]
Santhosh, M.
Senthilkumar, M. [1 ]
Zitoune, R.
机构
[1] PSG Coll Technol, Dept Mech Engn, Coimbatore, Tamil Nadu, India
来源
PROCEEDINGS OF THE ASME INTERNATIONAL MANUFACTURING SCIENCE AND ENGINEERING CONFERENCE, 2012 | 2012年
关键词
Drilling; CFRP/Ti stacks; optimization; TITANIUM; COMPOSITE; MACHINABILITY; DAMAGE;
D O I
暂无
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
Carbon fibre reinforced plastics (CFRP) and titanium (Ti) stacks have been steadily replacing metals as choice for engineering materials in aerospace applications. Although materials can be manufactured separately and stacked together to attain a near-net shape, it still involves post processing operations such as trimming and drilling. In order to drill holes efficiently without defects (delamination, circularity, variation in hole diameter) in the CFRP/Ti stacks, it is essential to understand the machining behavior of stacks. An experimental study on the drilling of CFRP/Ti stacks was conducted using K20 carbide drill. The drilling characteristics were evaluated for drilling force and torque, delamination in CFRP, drilled-hole quality (hole diameter and circularity) and exit burr height in Ti. This paper describes an attempt made to maximize the hole quality parameters by employing multi-objective optimization using weighted sum method.
引用
收藏
页码:269 / 275
页数:7
相关论文
共 20 条
[1]   Light emission, chip morphology, and burr formation in drilling the bulk metallic glass [J].
Bakkal, M ;
Shih, AJ ;
McSpadden, SB ;
Liu, CT ;
Scattergood, RO .
INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE, 2005, 45 (7-8) :741-752
[2]  
Boothroyd G., 2008, FUNDAMENTALS MACHINI, P267
[3]   Drilling of multi-layer composite materials consisting of carbon fiber reinforced plastics (CFRP), titanium and aluminum alloys [J].
Brinksmeier, E ;
Janssen, R .
CIRP ANNALS-MANUFACTURING TECHNOLOGY, 2002, 51 (01) :87-90
[4]   Drilling carbon fiber reinforced plastics manufactured by autoclave - experimental and statistical study [J].
Davim, JP ;
Reis, P .
MATERIALS & DESIGN, 2003, 24 (05) :315-324
[5]  
Dornfeld DA, 1999, CIRP ANNALS 1999 - MANUFACTURING TECHNOLOGY, P73
[6]   An approach for development of damage-free drilling of carbon fiber reinforced thermosets [J].
Enemuoh, EU ;
El-Gizawy, AS ;
Okafor, AC .
INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE, 2001, 41 (12) :1795-1814
[7]   Titanium alloys and their machinability - A review [J].
Ezugwu, EO ;
Wang, ZM .
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 1997, 68 (03) :262-274
[8]   Study on the drilling of titanium/graphite hybrid composites [J].
Kim, D. ;
Ramulu, M. .
JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY-TRANSACTIONS OF THE ASME, 2007, 129 (03) :390-396
[9]  
Kim D, 2005, TRANS N AMER MANUFAC, V33, P445
[10]   Drilling process optimization for graphite/bismaleimide-titanium alloy stacks [J].
Kim, D ;
Ramulu, M .
COMPOSITE STRUCTURES, 2004, 63 (01) :101-114