Armstrong, Kratz, Quintos, Hanson & Brooks, LLP
Metal member to be cast-wrapped
A metal member to be cast-wrapped by a metal cast article, a manufacturing method thereof and a metal cast article including the metal member cast-wrapped are provided. A hollow cylindrical metal member having an outer surface with projections to be cast-wrapped by a metal cast article is manufactured in such a manner that a hollow cylindrical metal raw material 13 is inserted in a die 17 having a inner peripheral surface with longitudinal grooves of a depth H and a width W, and the hollow cylindrical metal raw material 13 is subjected to hot-extrusion.
Honda Giken Kogyo Kabushiki Kaisha
Y Y B B Y Y Y
Y10T Y10T B22D B22D Y10T Y10T Y10T
additional additional inventional inventional additional additional additional
Kouji Ryuji Kaoru Toshiyuki Mitsunori Yoshiaki Yoshiaki
Yamada Shiga Mitsuuchi Shibasaki Arimura Itou Koyama