CUTTER AND MANUFACTURE THEREOF

Japanese Patent JP3281444

B2

PURPOSE: To provide a highly harder blade edge, strengthen joining of a blade root part and a blade part, and realize the long service life and high reliability by changing a composition continuously toward the blade edge from the blade root side in the blade part.
CONSTITUTION: Powder injection molding is used to mold at least a blade part 3, and a molding material adjusted in response to a composition on the blade root part 2 side and a molding material adjusted in response to a composition at a blade edge are filled simultaneously in a single mold, and a mixed part of both molding materials is formed in the mold. Thereby, a change necessary for a continuous change in a composition in the blade part 3 is given. In this case, the blade root part 2 and the blade part 3 can be molded simultaneously, and afterwards, it is baked and sintered, and is formed as a cutter. Needless to say, only the blade part 3 can be molded. Afterwards, it is baked and sintered, and when it is joined to the blade root part 2 manufactured separately, a cutter 1 can be also formed.

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Toshiyuki Matsumae
Takahiro Miyano
Masanobu Ogasawara
Norio Yoshida
Masao Kubo
Isao Fuwa
Masahiro Ikegami

JP9822293A

May 13, 2002

April 23, 1993

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MATSUSHITA ELECTRIC WORKS,LTD.

B22F3/02; B23D65/00; B23K26/38; B23P15/28; (IPC1-7): B23D65/00; B22F3/02; B23K26/00

JP4128330A
JP483808A
JP6239113A
JP6025616A

Takehiko Matsumoto

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