Development of a Drill Bit for CFRP/Aluminum-Alloy Stack: To Improve Flexibility, Economical Efficiency and Work Environment

Paper #:
  • 2013-01-2227

Published:
  • 2013-09-17
Citation:
Segawa, S., Tamura, J., Suzuki, S., Oka, H. et al., "Development of a Drill Bit for CFRP/Aluminum-Alloy Stack: To Improve Flexibility, Economical Efficiency and Work Environment," SAE Technical Paper 2013-01-2227, 2013, https://doi.org/10.4271/2013-01-2227.
Pages:
7
Abstract:
In the expansion of composite material application, it is one of the most important subjects in assembly of aircraft structure how drilling of composite/metal stack should be processed in an efficient way. This paper will show the result of development of a drill bit for CFRP/Aluminum-alloy stack by Kawasaki Heavy Industries (KHI) and Sumitomo Electric Hardmetal (SEH).In order to improve workability and economic performance, the drill bit which enables drilling CFRP/Al-alloy stack: at 1 shot; from both directions; without air blow and coolant (just usual vacuuming); was required. A best mix drill bit which has smooth multi angles edge and pointed finishing edge was produced as a result of some trials.Developed drill bit achieved required performance and contributed to large cost reduction, labor hour saving, production speed increase and work environment improvement.
Access
Now
SAE MOBILUS Subscriber? You may already have access.
Buy
Select
Price
List
Download
$27.00
Mail
$27.00
Members save up to 40% off list price.
Share
HTML for Linking to Page
Page URL

Related Items

Technical Paper / Journal Article
1958-01-01
Standard
1966-01-01
Technical Paper / Journal Article
1999-10-06
Technical Paper / Journal Article
2004-09-21
Technical Paper / Journal Article
1956-01-01
Technical Paper / Journal Article
1934-01-01