The bronze casting has been practiced for centuries. Many civilizations have used this alloy for weapons, sculptures and pieces of hardware in general. The popular way of cast bronze is the Lost Wax Casting process which was first used sometime in 3000 BC near ancient Sumeria. The lost wax process still used today and its modern equivalent Investment Casting is very popular with jewelry makers.
Bronze is the preferred alloy for metal working artists as it is relatively easy to work and resistant to corrosion. The properties of bronze tend to be stronger than most other alloys, except of course for steel, and lends itself easily to the molding and casting process. Many small foundries like the type that can be found in a backyard or workshop find that bronze is a great material to work with a melting point of 1,700 degrees Fahrenheit or Celsius about 925 different manufacturing furnaces home are able to melt the bronze quickly and efficiently.
Many artists today create their own foundries metal in mind. These metal wheels using the lost wax method of casting, which happens to be the best when it comes to the alloy. The Lost Wax Casting is making an original wax sculpture and then creating a mold using the original. Many times the original is lost during the mold making process to take this into account if you want to hang to the original for any reason. Melted wax is poured into the mold which is chased or smoothed of imperfections. At this point, others join wax tubes and small placed on the piece. These tubes are how the molten bronze will travel in the piece that replaces the wax with the alloy. When this is completed the artist will create a ceramic layer around the wax model. This shell will help form the molten bronze to melt the wax. When the molten bronze is poured the bronze takes place of the wax. Subsequently, the artist will break the shell and reveal the bronze piece. This method allows the transfer of precise detail of the wax to the bronze.
Patina is the figure that at the discretion of the artist. The patina is a chemical that when applied to bronze creates colors and makes the bronze take an aged appearance. Patrina compounds used depends on the desired color. Ferric Nitrate will make the bronze take a red or brown color while Potash sulphide copper nitrate will create black and blue and green. Modern artists day decides to go with a polished bronze high instead of using these compounds. This step depends solely on the artist's taste and the look is going for.
Bronze casting will remain a popular medium until another alloy is developed that has properties that are easier to handle and are more resistant to corrosion. Casting of the alloy is easily done metal wheels to be tested are encouraged to do so. Making anything from small figurines, large sculptures, and even cabinet handles can be achieved with the use of bronze. The only limitations are cast in bronze casting machine itself.
About the Author:
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Article Source: ArticlesBase.com - Bronze Metal and Bronze Casting Described
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