Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Keiichi Matsunaga"'
Publikováno v:
Mechanical Engineering Journal, Vol 10, Iss 4, Pp 23-00057-23-00057 (2023)
Cold forging of automotive parts in high strength steel causes high pressure on the die. The high pressure or heavy load reduces a die life and accuracy of the forged parts, so prediction of a more accurate load helps us to design optimum die dimensi
Externí odkaz:
https://doaj.org/article/99fac11df27746e99995a0e64a782cb4
Publikováno v:
Journal of the Japan Society for Technology of Plasticity. 64:21-26
Autor:
Manabu Yanagihara, Masaya Mannoh, Hideyuki Okita, Saichiro Kaneko, Michinobu Tsuda, Hisayoshi Matsuo, Kenichiro Tanaka, Yasuhiro Uemoto, Akihiko Nishio, Masayuki Kuroda, Keiichi Matsunaga, Masahiro Hikita, Takahiro Sato, Ayanori Ikoshi, Tatsuo Morita
Publikováno v:
IEEE Transactions on Electron Devices. 64:1026-1031
A new gate recess process technology has been successfully implemented in normally off GaN-based gate injection transistors, in order to improve the process stability. In this process, unlike the conventional gate recess process, the initial AlGaN ba
Publikováno v:
Journal of the Japan Society for Technology of Plasticity. 58:213-219
Publikováno v:
Procedia Engineering. 207:980-985
Shaft parts have great demands especially in the automotive industry and are manufactured by various processing routes depending on the requirements. Joining-by-forming is receiving increasing attention as a cost-effective production method for the s
Publikováno v:
Key Engineering Materials. 716:458-463
Joining by forming is an attractive assembly method for mass produced parts due to easiness in execution, no heat effect, various material combinations etc. and industrial applications have been increased in electric and automotive industries. In thi
Publikováno v:
Key Engineering Materials. 716:379-388
In multiple stages forging, an appropriate pre-form has reduced production cost, loss of material, and forging load, and it has also improved die life. However, it is difficult for beginner to make the process design of the pre-form because they have
Autor:
Takeshi Harada, Keiichi Matsunaga, Kanda Yusuke, Masahiro Hikita, Katsuhiko Onishi, Koji Utaka, Yasuhiro Uemoto
Publikováno v:
2018 IEEE International Interconnect Technology Conference (IITC).
A new technology for manufacturing a GaN FET is proposed and demonstrated. A Ti/AI/Ti stack contacting to p-GaN is used as a gate metal. Surprisingly, Al forms a single crystal on p-GaN. The single crystal formation is due to an epitaxial growth of A
Publikováno v:
Journal of Materials Processing Technology. 214:2095-2101
In this paper, a new assembling method of spline joints that enables tight fitting in a simple manner by allowing slight plastic deformation at the spline teeth was introduced. Experiments were carried out for the spline joints of medium carbon steel
Publikováno v:
Advanced Materials Research. :21-28
Cold joining method using plastic flow has been useful for production of joint parts. The high torsional strength of the joint of a disk and a shaft was obtained by plastic flow serration joining, but the axial strength of the joint was not so high.