When deciding on a metal to use for specific applications requires an understanding of the characteristics of each metal. Therefore, it is not a lottery or a game, but rather a matter of knowledge of each metal and its alloys.
"Ferrous" means a metal or alloy containing iron. The term "nonferrous", a metal that therefore no iron. Therefore, aluminum and copper, two metals that contain iron, are considered nonferrous. These two metals are usually employed in creating metallic alloys, rather than cast as pure metal.
Aluminum Castings Investment
Nonferrous metals most commonly used in investment casting is aluminum. This versatile, lightweight metal, is used for a wide variety of applications. Aluminum is used in creating the various parts of a number of industries including aerospace manufacturing, automotive and military equipment.
Of course, base metals for aluminum, copper and investment Castings are aluminum or copper. Despite of these metals can be cast as pure metal, is generally not the way it is expressed. Mostly, they are often presented as the principal metal in an alloy.
Alloys are created when a base metal is combined with another metal or element. Some of the most commonly used in the production of aluminum alloys are silicon and magnesium. From pure aluminum is more susceptible to corrosion and stress created weaknesses, the addition of these other elements to overcome these weaknesses. Aluminum alloys are resistant corrosion and strong enough to be used as components in certain applications very vital: space exploration, military superiority and security vehicles
Copper Investment Castings
Other non-ferrous metals used in copper smelting investment is the red gold. Copper is a metal that even in its pure form it resists oxidation and corrosion. For this reason, copper is often combined with other metals when the final product will be used in harsh environments where corrosion and oxidation can be a problem. Furthermore, the conductive properties of copper to make some articles of precious metals used in electronics and electrical applications.
Beryllium is most often combined with copper in the copper alloys. It is used in investment casting with the addition of beryllium copper supplies tight and hard that does not give pure copper. This makes casting copper alloy, not only strong and durable, but also very young drivers and be resistant to corrosion and fatigue. Some components made of copper-beryllium staining of welding electrodes, springs and electrical contacts.
Aluminum and Copper Investment Castings
Aluminum and copper are the two most common cast iron, nonferrous metals used in the foundry. So are two non-ferrous metals, may be the only common link between the two metals. There are differences of fact, many between the two, so it is very important to understand the properties of these metals in the selection of a metal to an application particular.
About the Author:
C.L. Hendricks has been a Jill-of-all-trades and become an expert in some. She writes for http://www.shelmetcastings.com and http://www.survival-homestead.com, as well as several other websites on a variety of topics.
Article Source: ArticlesBase.com – Eenie Meenie Aluminum or Copper
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