Abstract: A multi element moving vacuum chamber (MEMVC) for rotational casting includes a mold having a predefined shape and an axis of rotation, and a box containing casting material. The MEMVC further includes a first vacuum element mounted to an outer mold surface and a second vacuum element mounted to an outer box surface. The mold and the box are detachably engageable with each other to define an engaged configuration in which air present in an enclosed area defined by the outer mold surface and an inner surface of the first vacuum element, by an inner mold surface and an inner box surface, and by the outer box surface and an inner surface of the second vacuum element, is removed to create a vacuum. Alternatively, the mold and/or the box may be constructed with vacuum loading capability, thereby eliminating the need for the first and/or the second vacuum elements.

Abstract: A multi element moving vacuum chamber (MEMVC) for rotational casting includes a mold having a predefined shape and an axis of rotation, and a box containing casting material. The MEMVC further includes a first vacuum element mounted to an outer mold surface and a second vacuum element mounted to an outer box surface. The mold and the box are detachably engageable with each other to define an engaged configuration in which air present in an enclosed area defined by the outer mold surface and an inner surface of the first vacuum element, by an inner mold surface and an inner box surface, and by the outer box surface and an inner surface of the second vacuum element, is removed to create a vacuum. Alternatively, the mold and/or the box may be constructed with vacuum loading capability, thereby eliminating the need for the first and/or the second vacuum elements.