TY - GEN
T1 - Improvement in drilling performance of micro compound tool
AU - Ohnishi, Osamu
AU - Onikura, Hiromichi
AU - Eguchi, Toshihiko
AU - Aziz, Muhammad
AU - Doi, Toshiro
AU - Kurokawa, Syuhei
PY - 2010
Y1 - 2010
N2 - The present paper deals with the development of micro compound tools and their application to the micro drilling. The micro compound tool consists of a micro drill part and an electroplated part with a nominal finishing diameter of 100 μm and they are fabricated by grinding and electroplating processes. Fabricated tools are used in drilling tests with or without ultrasonic vibration. Influences of drill part geometry on burr formation and influences of diamond grit size on peeling of the electroplating layer are investigated. As the results, secondary cutting edges do not seem to have remarkable ability for reduction of burrs. And large size of diamond grit at the electroplated part of a micro compound tool with a small difference between a diameter of electroplated part and a diameter of drill part seems to be effective in preventing peeling of the electroplating layer and improving drilling performance.
AB - The present paper deals with the development of micro compound tools and their application to the micro drilling. The micro compound tool consists of a micro drill part and an electroplated part with a nominal finishing diameter of 100 μm and they are fabricated by grinding and electroplating processes. Fabricated tools are used in drilling tests with or without ultrasonic vibration. Influences of drill part geometry on burr formation and influences of diamond grit size on peeling of the electroplating layer are investigated. As the results, secondary cutting edges do not seem to have remarkable ability for reduction of burrs. And large size of diamond grit at the electroplated part of a micro compound tool with a small difference between a diameter of electroplated part and a diameter of drill part seems to be effective in preventing peeling of the electroplating layer and improving drilling performance.
UR - http://www.scopus.com/inward/record.url?scp=78650445715&partnerID=8YFLogxK
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U2 - 10.4028/www.scientific.net/KEM.447-448.96
DO - 10.4028/www.scientific.net/KEM.447-448.96
M3 - Conference contribution
AN - SCOPUS:78650445715
SN - 9780878492565
T3 - Key Engineering Materials
SP - 96
EP - 100
BT - Advances in Precision Engineering
PB - Trans Tech Publications Ltd
ER -