Mr. Noriyoshi Miwa Profile

Noriyoshi Miwa

at Tokai Univ

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Proceedings Article | 9 September 2008 Paper

All-round joining method with carbon fiber reinforced interface

Noriyoshi Miwa, Kazunori Tanaka, Yoshiko Kamiya, Yoshitake Nishi

Proceedings Volume 7039, 703908 (2008) https://doi.org/10.1117/12.794785

KEYWORDS: Carbon, Interfaces, Aluminum, Titanium, Copper, Fluctuations and noise, Adhesives, Nickel, Fiber reinforced polymers, Metals

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Carbon fiber reinforced polymer (CFRP) has been recently applied to not only wing, but also fan blades of turbo fan engines. To prevent impact force, leading edge of titanium was often mounted on the CFRP fan blades with adhesive force. In order to enhance the joining strength, a joining method with carbon fiber reinforced interface has been developed. By using nickel-coated carbon fibers, a joining sample with carbon fiber-reinforced interface between CFRP and CFRM has been successfully developed. The joining sample with nickel-coated carbon fiber interface exhibits the high tensile strength, which was about 10 times higher than that with conventional adhesion. On the other hand, Al-welding methods to steel, Cu and Ti with carbon fiber reinforced interface have been successfully developed to lighten the parts of machines of racing car and airplane. Carbon fibers in felt are covered with metals to protect the interfacial reaction. The first step of the welding method is that the Al coated felt is contacted and wrapped with molten aluminum solidified under gravity pressure, whereas the second step is that the felt with double layer of Ni and Al is contacted and wrapped with molten steel (Cu or Ti) solidified under gravity pressure. Tensile strength of Al-Fe (Cu or Ti) welded sample with carbon fiber reinforced interface is higher than those of Al-Fe (Cu or Ti) welded sample.

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