Patent ID: 7497243

Claim:
A casting die for metal casting, said casting die comprising: a main body having a wall surface for defining a portion of a mold cavity, said main body comprising: a gate defining an initial flow path for routing molten metal, wherein said initial flow path is disposed at a first level and defines an initial flow direction, and a flow-receiving wall extending away from said first level in a direction substantially transverse to said initial flow direction; and a cavity forming reinforcement member having a wall serving as a portion of the mold cavity, said cavity forming reinforcement member being permanently fused to said flow-receiving wall of said main body; said main body being made of steel, the steel being equivalent to steels designated as an SCM material or an SKD material; said cavity forming reinforcement member being made of maraging steel or a steel equivalent to steels designated as an SKH material which is better with respect to at least one of toughness, hardness, and thermal conductivity than the SCM material or the SKD material which said main body is made of, wherein the material designations are as designated by Japanese Industrial Standards.