Sumitomo Electric Industries, Limited

Sumitomo Electric Hardmetal Corp.

National Institute of Advanced Industrial Science and Technology

Teruhiro Enami

Satoru Kukino

Katsumi Okamura

Hideki Moriguchi

Yutaka Kobayashi

Katsuko Yamamoto

Kazuo Nakamae

Kimihiro Ozaki

Yusuke Matsuda

Katsuyuki Tanaka

Takeru Nakashima

Shinichiro Yurugi

Tomoyuki Ishida

Keizo Kobayashi

Mamoru Ono

Hiroyuki Murase

Toshimitsu Sakata

Koji Sano

Provided is a technology for manufacturing cutting tools that is capable of providing cutting tools that have a cut surface whose surface is uniformly smooth and that have a stable performance. Provided are a cutting tool manufacturing method in which a cutting tool material is cut by using, as a laser beam, a laser beam formed by combining two linearly polarized laser beams so that the directions of polarization of the two linearly polarized laser beams are at right angles to each other; a cutting tool manufacturing method in which a circularly polarized laser beam is used as a laser beam; a cutting tool manufacturing method in which a randomly polarized laser beam is used as a laser beam; a cutting tool manufactured by the manufacturing method; a cutting tool manufacturing apparatus that includes means for generating a combined laser beam formed of two linearly polarized laser beams, the directions of polarization of the two linearly polarized laser beams being at right angles to each other and an optical system that guides the combined laser beam to the cutting tool material; a cutting tool manufacturing apparatus that includes means for generating a circularly polarized laser beam; and a cutting tool manufacturing apparatus that includes means for generating a randomly polarized laser beam.

Cutting tool and method and apparatus for manufacturing the same

A joined product has a cemented carbide sintered compact serving as a first material to be joined and a cBN sintered compact serving as a second material to be joined, wherein: the first material to be joined and the second material to be joined are joined together via a joining material disposed therebetween and containing titanium (Ti); and a titanium nitride (TiN) compound layer having a thickness of 10-300 nm is produced at an interface between the second material to be joined and the joining material.

Joined product

Growing community of inventors

Itami, Japan

Teruhiro Enami