TY - JOUR
T1 - Preliminary study on rotary ultrasonic machining of CFRP/Ti stacks
AU - Cong, W. L.
AU - Pei, Z. J.
AU - Treadwell, C.
N1 - Funding Information:
The work was supported by the National Science Foundation through award CMMI-0900462. The authors gratefully extend their acknowledgements to N.B.R. Diamond Tool Corp. for supplying the diamond core drills.
PY - 2014/8
Y1 - 2014/8
N2 - Reported drilling methods for CFRP/Ti stacks include twist drilling, end milling, core grinding, and their derived methods. The literature does not have any report on drilling of CFRP/Ti stacks using rotary ultrasonic machining (RUM). This paper, for the first time, reports a study on drilling of CFRP/Ti stacks using RUM. It also compares results on drilling of CFRP/Ti stacks using RUM with reported results on drilling of CFRP/Ti stacks using other methods. When drilling CFRP/Ti stacks using RUM, cutting force, torque, and CFRP surface roughness were lower, hole size variation was smaller, CFRP groove depth was smaller, tool life was longer, and there was no obvious Ti exit burr and CFRP entrance delamination. Ti surface roughness when drilling of CFRP/Ti stacks using RUM was about the same as those when using other methods.
AB - Reported drilling methods for CFRP/Ti stacks include twist drilling, end milling, core grinding, and their derived methods. The literature does not have any report on drilling of CFRP/Ti stacks using rotary ultrasonic machining (RUM). This paper, for the first time, reports a study on drilling of CFRP/Ti stacks using RUM. It also compares results on drilling of CFRP/Ti stacks using RUM with reported results on drilling of CFRP/Ti stacks using other methods. When drilling CFRP/Ti stacks using RUM, cutting force, torque, and CFRP surface roughness were lower, hole size variation was smaller, CFRP groove depth was smaller, tool life was longer, and there was no obvious Ti exit burr and CFRP entrance delamination. Ti surface roughness when drilling of CFRP/Ti stacks using RUM was about the same as those when using other methods.
KW - CFRP composite
KW - Drilling
KW - Rotary ultrasonic machining
KW - Stack
KW - Titanium
UR - http://www.scopus.com/inward/record.url?scp=84901837979&partnerID=8YFLogxK
U2 - 10.1016/j.ultras.2014.03.012
DO - 10.1016/j.ultras.2014.03.012
M3 - Article
AN - SCOPUS:84901837979
SN - 0041-624X
VL - 54
SP - 1594
EP - 1602
JO - Ultrasonics
JF - Ultrasonics
IS - 6
ER -