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METAL
FABRICATION:
Pour. In the most dramatic step of the entire process, molten bronze heated to 2100 degrees Fahrenheit is poured into the ceramic investment mold through the sprue system from a silicon carbide crucible. For large mold segments, up to 1290 pounds of metal can be poured in a single pour. |
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| Divestment. After the bronze and ceramic shell molds have cooled, the ceramic shell molds are "broken off" the bronze by use of large pneumatic hammers and hand-held air chisels. | ||
| Cut-off. The elements of the sprue system are then cut away from the cast bronze pieces by use of abrasive wheels and carbon-arc torches. | ||
| Metal chasing and assembly. Once the rough castings are completed, the segments are welded together to form the entire statue. The seam marks are erased and the metal chased to a final finish by use of a variety of electric and pneumatic tools. All imperfections are corrected and the work is completed to fulfill the vision of the sculptor. | ||
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Site Last Updated
May 9, 2008
May 9, 2008
