Free casting method, free casting apparatus, and casting

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United States of America Patent

PATENT NO 9120146
APP PUB NO 20130171021A1
SERIAL NO

13821727

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Abstract

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A free casting method according to the present invention includes, a lead-out step for leading out molten metal from a lead-out area provided in a source of supply, e.g. a surface level of the molten metal, to retain the molten metal temporarily by surface films generated on an outer surface, and a forming step for obtaining a formed body by solidifying retained molten metal led out along a set passage depending on a desired casting shape, wherein the retained molten metal is solidified after being formed into the desired casting shape by applying an external force thereto at positions between an unrestrained root portion of the retained molten metal in vicinity of the surface level of the molten metal and a solidification interface defined as a boundary between the retained molten metal and the formed body in the forming step.

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Patent Owner(s)

Patent OwnerAddress
TOYOTA JIDOSHA KABUSHIKI KAISHA1 TOYOTA-CHO TOYOTA-SHI AICHI-KEN 471-8571
KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHONAGAKUTE-SHI AICHI 480-1192

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Amano, Norihiro Kasugai, JP 7 43
Iwahori, Hiroaki Aichi-gun, JP 11 51
Iwata, Yasushi Miyoshi, JP 50 326
Kobayashi, Takehito Miyoshi, JP 61 507
Sugiyama, Yoshio Seto, JP 31 250
Ueno, Noriyuki Toyota, JP 17 74
Yaokawa, Jun Nisshin, JP 27 29

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