Bronze,Metal,and,Casting,Descr technology Bronze Metal and Bronze Casting Described
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BronzeCasting has been practiced for centuries. Many civilizations have used thisalloy for weapons, sculptures, and general pieces of hardware. The popular wayto cast bronze is the Lost Wax Casting process which was first used sometime inthe 3000 BC near ancient Sumeria. The Lost Wax process is still used tothis day and its modern equivalent Investment Casting is very popular withjewelry makers.Bronze is the preferred alloy for metal working artists as it's relatively easyto work with and resistant to corrosion. The properties of bronze tend to bestronger than most other alloys, except of course for steel, and lends itselfeasily to the molding and casting process. Many small foundries like the kindthat can be found in a backyard or workshop find that bronze is a greatmaterial to work with and with a melting point of 1,700 Fahrenheit or about 925Celsius many homemade furnaces are able to melt down the bronze quickly andefficiently.Many modern day artists create their own furnaces with the metal casting inmind. These metal casters employ the Lost Wax Casting method which proves to bethe best when dealing with the alloy. The Lost Wax Casting is making anoriginal of the sculpture from wax and then creating a mold using thisoriginal. Often times the original is lost during the mold making process sokeep that in mind if you want to hang on to the original for whatever reason.Molten wax is poured into the mold which is chased or smoothed ofimperfections. During this point, any other pieces are attached and small waxtubes are placed into the piece. These tubes will be how the molten bronze isgoing to travel into the piece replacing wax with the alloy. When this iscomplete the artist will create a ceramic shell around the wax model. Thisshell will help form the molten bronze which will melt the wax. When the moltenbronze is poured the bronze takes place of the wax. Afterwards, the artist willcrack the shell and reveal the bronze piece. This method allows the transfer ofvery exact detail from the wax to the bronze.Patina is added to the figure at the artist's discretion. The Patina is achemical that when applied to bronze creates colors and makes the bronze takean aged look. The Patrina compounds used depends on the type of colordesired. Ferric Nitrate will make the bronze take on a red or brown color whileSulphurated Potash will make black and Cupric Nitrate will create blue andgreen. Modern day artists choose to go with a very high polished bronze insteadof using these compounds. This step depends solely on the artists taste andthe look they are going for. Bronze casting will remain a popular medium until another alloy is developedthat exhibits properties that are easier to manage and are more resistant tocorrosion. Casting the alloy is easily done so metal casters that want toexperiment are encouraged to do so. Making anything from small figurines, largesculptures, and even cabinet handles can be accomplished with the use ofbronze. The only limitations in bronze casting are with the caster himself.
Bronze,Metal,and,Casting,Descr