Other

Mitsubishi Materials Corporation

Kabushiki Kaisha Kobe Seiko Sho

Mmc Kobelco Tool Co., Ltd.

Taiitsu Aoki

Yusuke Tanaka

Yasuyuki Yamada

Kenji Yamamoto

Toshiki Sato

Natsuki Ichimiya

Koichi Maeda

Tatsuya Yasunaga

Seiichiro Kitaura

Hiroshi Ikeuchi

Masahiro Machida

Yasushi Onishi

Genki Matsumoto

Yoshihiko Kimura

Kazumasa Abe

Yasutaka Okazaki

Takeo Komine

A radius end mill includes an end mill body, peripheral cutting edges, bottom cutting edges and corner cutting edges. Each of the corner cutting edge is formed so as to curve toward the terminal end of the end mill body after the corner cutting edge has reached the distal end of the end mill body. A rake surface of the corner cutting edge is formed so as to be flush with the rake surface of the bottom cutting edge. When an external diameter of the end mill body is D, a value of a radius of curvature R of the corner cutting edge is greater than or equal to 0.1&#xd7;D and is less than or equal to 0.3&#xd7;D.

Radius end mill and cutting method

The present invention is for providing a milling cutter which can provide for both an improvement in sharpness and a retention of cutting edge strength, while making the transverse cross-section an easily manufactured polygon shape. The milling cutter with a plurality of peripheral cutting edges ( ) has a polygon shape transverse cross-section. The polygon is a convex polygon with one more apex point ( ) existing between apex point pairs constituting the peripheral cutting edges with an apex angle greater than that of the apex points, and a longer side of the sides on either side of each of the peripheral cutting edges constitutes a rake face ( ), while a shorter side constitutes a relief face ( ).

Milling cutter

Hard coating coated member having excellent wear resistance

A coated member comprising a substrate, an intermediate layer on the substrate consisting essentially of aluminum and titanium, and a hard coating of (Al, Ti) (N, C) on the intermediate layer. The coated member has an improved wear resistance because the intermediate layer raises the level of adhesion between the substrate and the hard coating.

Coated member having excellent hardness and, adhesive properties

Growing community of inventors

Akashi, Japan

Taiitsu Aoki