Manufacturing of Hip Composite Rollers Through the Rolling Process

Abstract

In the manufacturing process of a HIP composite roller, powder is filled between a roller body and an outer cylindrical can, and sealed under vacuum. Then, powder is sintered and bonded to a roller body through HIP process. In the case of a roller not having a simple cylindrical shape but a more complex shape, for example, a hand-drum shape, manufacturing of an outer can is not an easy process. Authors have developed a method of manufacturing such a special-shaped HIP composite roller easily through the ″rolling process″. In the rolling process, a suitable amount of powder is poured between a handdrum-shaped roller body and a simple cylindrical-shaped can and then sealed into a vacuum. Then, the outer can is deformed into a handdrum-shape similar to the roller body by the rolling process. After the process, powder is distributed with uniform thickness between the roller body and the can.