Honda Giken Kogyo Kabushiki Kaisha

Honda Foundry Co., Ltd.

Masao Takahashi

Jinsei Ida

Saburo Azuma

Yohei Sekiguchi

Kenta Abe

Yosio Hagimoto

Hisaki Watanabe

A breathable salt core is provided that is placed in a cavity of a casting mold in order to mold a hollow part of a cast product and that is dissolved and removed after casting, the breathable salt core being formed by powder molding innumerable salt particles into a predetermined shape corresponding to the hollow part, wherein a gap that can retain a gas remaining in the cavity in a casting process is formed between the innumerable salt particles that have been powder molded. The breathable salt core thus manufactured assures that residual gas within the cavity pushed by the molten metal to enter the gap formed between salt particles of the salt core, thereby avoiding any incomplete filling of the molten metal, and which can be formed with a simple production process at a low cost.

Method for manufacturing cast product using breathable salt core

A jig table apparatus for a machine tool is provided. The apparatus comprises first and second jig tables for holding workpieces thereon. A base for positioning adjacent a machine tool and elevating table are provided at a work station for supporting and raising and lowering one of the jig tables at the work station. Also provided is a turntable, a work attaching and detaching station for supporting one of the jig tables and for moving the jig tables to a position for removing a workpiece therefrom and for placing a workpiece thereon, and a transfer device is mounted on the base for moving the first and second jig tables between the working station and the work attaching and detaching stations. The transfer device includes claw members which are coupled to the elevating table and are responsive to the movement thereof, such that the claw members are moved to an engaging position when the elevating table is raised and to a disengaging position when the table is lowered.

Jig table apparatus for a machine tool

Growing community of inventors

Kawagoe, Japan

Masao Takahashi