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Nano Research & Applications
ISSN 2471-9838
E u r o S c i C o n C o n f e r e n c e o n
Nanotechnology &
Smart Materials
O c t o b e r 0 4 - 0 6 , 2 0 1 8
Am s t e r d a m , N e t h e r l a n d s
Nanotechnology & Smart Materials 2018
Comparative assessment of delamination control techniques in
conventional drilling of CFRP
Kamlesh Phapale
1
, Panchakshari Hiremath
1
, Ramesh Singh
2
and RKP Singh
1
1
KCTI-Bharat Forge Ltd, India
2
Institute of Technology Bombay, India
C
omposite laminates are used in many applications due to their extremely high strength to low weight ratio and corrosion
resistance properties. Comparing to other materials composites laminates have different properties throughout their
thickness due to the layered structure. When drilling such structures, internal defects like delamination occur, caused by
the drilling loads and their uneven distribution among the plies. The composite laminates are difficult to machine due to the
composite’s anisotropic and non-homogeneous nature. Thus it is important to develop an innovative advanced drilling process
to overcome the difficulties related in machining of composite materials. The focus of present work is comprehensive study
involving experimental characterization and development of different techniques for controlling the delamination in conventional
drilling process, such as back up plate and helical milling has also been conducted. The analysis shows that the helical milling
yields lower delamination extent, thrust force, hole size variation and hole surface roughness.
kamleshphapale@bharatforge.comNano Res Appl Volume:4
DOI: 10.21767/2471-9838-C6-025