In-place cope molding for production of cast metal components
AssigneeWaukesha Foundry, Inc.
InventorsWilliam J. Norris, Craig A. Smith
Life of this patent
Estimating the term…
Abstract
In-Place Cope Molding or “IPCM,” is designed to reduce or eliminate certain inefficiencies present in traditional molding techniques during production of the cope half of a sand mold. IPCM allows the cope half of the mold to be produced on top of the drag half of the mold by use of a separation barrier which supports the sand above the mold cavity in the drag. This method reduces or eliminates parting line flash, and also avoids the need to turn over or otherwise handle the cope, allowing the cope to be made thinner than a traditional cope and allowing for lower material costs.
Claims14
A sand-based mold comprising:
- a drag layer, the drag layer including a mold cavity;
- a cope layer;
- and
- a barrier affixed on top of the drag layer to allow the cope layer to be formed on top of the drag layer.
A method of making method of making a sand-based mold comprising:
- forming a drag layer;
- affixing a barrier to the drag layer to separate the drag layer and a cope layer;
- and
- forming the cope layer on top of the drag layer over the barrier.
A method of making method of making a sand-based mold for a metal casting comprising:
- forming a first layer, the first layer consisting of a sand/binder mixture, wherein the mixture is poured to a desired shape and cured to a solid state;
- machining a cavity into the first layer, wherein the cavity is the shape of the desired casting, and wherein the cavity can be filled with molten metal which cools to form the casting;
- affixing a barrier to the first layer;
- and
- forming a second layer, the second layer consisting of a sand/binder mixture, wherein the mixture is poured over the barrier affixed to the first layer and cured to a solid state.
Dependencies are inferred from the claim text.