Honda Motor Co., Ltd.

Takayuki Higashi

Haruhiko Shimizu

Shigeki Muroga

Hiromi Fujita

Kenichi Katahira

Kunihiro Yokoyama

Hiroshi Matsushita

Masanori Masubuchi

Yoshinori Kubo

Takanori Niwa

Teruyoshi Kita

Provided is a highly versatile casting mold in which weight and manufacturing cost can be reduced, and whereby flash can be suppressed. A plate-shaped base part having a flat attachment face to which a back face of a fixed-cavity mold is attached is provided to a fixed mold constituting a casting mold. A portion of the base part in contact with the back face of the fixed-cavity mold has an attachment part body for supporting the fixed-cavity mold, and a pressure increasing means for increasing the pressure imparted to the fixed-cavity mold via the attachment part body in a state in which the mold is closed.

Casting mold

A metal filmis disposed between a permanent magnetand a rotor yoke, and the permanent magnetand the rotor yokeare subjected to beam welding. Since the metal filmis disposed between the permanent magnetand rotor yoke, and the metal filmas a laser beam irradiated portion is melted by vacuum beam or laser beam, the metal filmhas brazing metal function in welding, so that the connection between the permanent magnetand the rotor yokeis strong. Since there is no need of embedding the permanent magnetin the rotor yokeand there is no need to use polymer adhesives, the cost can be reduced.

Rotor for permanent magnet motor

Growing community of inventors

Utsunomiya, Japan

Takayuki Higashi