Patent ID: 8656750

Claim:
A method comprising: providing a first member that at least partially defines a first forming surface and an inner surface, the first member forming a shell; forming a second member that is received into the shell, the first and second members cooperating to at least partially define a first die structure having said first forming surface; providing a first aperture in at least a portion of the first die structure for receiving cooling fluid and providing a second aperture in at least a portion of the first die structure for conveying cooling fluid; forming a cooling channel between the inner surface of the first member and the second member, wherein the cooling channel has a length extending from the first aperture to the second aperture for conveying cooling fluid between the first aperture and the second aperture, wherein a portion of the cooling channel at the inner surface of the first member is offset a predetermined distance from the first forming surface in a direction that is parallel to a die action direction, and wherein the predetermined distance is consistent along the length of the cooling channel.