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Title:
METHOD FOR MACHINING CERAMIC MATRIX COMPOSITE
Document Type and Number:
WIPO Patent Application WO/2014/136980
Kind Code:
A1
Abstract:
This method that is for machining a ceramic matrix composite (CMC) and increases the machining speed for the ceramic matrix composite has: a step for irradiating from a laser head (21), scanning a laser light irradiated section (32) over the surface of a material (30) to be machined of a ceramic matrix composite (CMC), thus forming a deteriorated layer at the surface of the material (30) to be machined at the irradiated section (32); and a step for successively eliminating the deteriorated layer formed at the irradiated section (32) by means of an endmill (25). The deteriorated layer is formed by forming cracks as a result of irradiation by pulsed oscillation laser light and heating to a predetermined temperature by means of irradiating the irradiated section (32) by continuous oscillation laser light.

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Inventors:
ARAKI TAKAHITO (JP)
YANO MASAHARU (JP)
IMANARI KUNIYUKI (JP)
ISHITSU KOUTA (JP)
UEDA TAKASHI (JP)
HOSOKAWA AKIRA (JP)
FURUMOTO TATSUAKI (JP)
Application Number:
PCT/JP2014/056191
Publication Date:
September 12, 2014
Filing Date:
March 10, 2014
Export Citation:
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Assignee:
IHI CORP (JP)
International Classes:
B23P25/00; B23B1/00; B23C9/00; B23K26/00; B23K26/352
Foreign References:
JP2005082414A2005-03-31
JP2003019615A2003-01-21
JP2007196373A2007-08-09
JPH0437492A1992-02-07
JP2002510271A2002-04-02
JP2008081379A2008-04-10
JPH09155602A1997-06-17
JPS61152345A1986-07-11
JPH10113815A1998-05-06
Other References:
OGASAWARA TOSHIO: "Recent Research Activities regarding SiC-Based Ceramic Composites for Aerospace Applications", JOURNAL OF JAPANESE PLASMA/NUCLEAR FUSION SOCIETY, vol. 80, no. 1, 2004, pages 36 - 41
"Physical Constants Table", 1969, ASAKURA PUBLISHING CO., LTD., pages: 199
See also references of EP 2965860A4
Attorney, Agent or Firm:
MIYOSHI, Hidekazu et al. (JP)
Hidekazu Miyoshi (JP)
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