Ihi Corporation

Ishikawajima-harima Heavy Industries Co., Ltd.

Kuniyuki Imanari

Takahito Araki

Ikuhisa Mizuta

Tetsuji Fujimura

Masaharu Yano

Takashi Ueda

Akira Hosokawa

Kouta Ishitsu

Tatsuaki Furumoto

A method for machining a ceramic matrix composite (CMC), the method enhancing a machining speed for the ceramic matrix composite (CMC), includes: a step of scanning an irradiated portion of a surface of a machining target material by a laser head to irradiate the irradiated portion with laser light from the laser head, and forming a deteriorated layer on the irradiated portion of the surface of the machining target material; and a step of sequentially removing the deteriorated layer by an end mill, the deteriorated layer being formed on the irradiated portion, wherein the deteriorated layer is formed by heating the irradiated portion up to a predetermined temperature by irradiation of continuous oscillation laser light, and by forming a crack by irradiation of pulsed oscillation laser light.

Method for machining ceramic matrix composite

A turbofan engine has a fan on a front side thereof and a turbine driving the fan. The turbofan engine includes a disk rotationally driven by the turbine, a spinner detachably mounted at a front side of the disk, a spiral blade integrally mounted on a surface of the spinner, and a rear moving blade detachably mounted on an outer circumferential surface of the disk. The spiral blade and the rear moving blade form a first-stage moving blade of the fan.

Turbofan engine

Growing community of inventors

Tokyo, Japan

Kuniyuki Imanari