Posted by Vishnu on August 19th, 2009 01:47 AM | 26 Comments Heat treatment is any one of a number of controlled heating and cooling operations used to bring about a desired change in the physical properties of a metal. Its purpose is to improve the structural and physical properties for some ...
Posted by Vishnu on August 19th, 2009 01:12 AM | 31 Comments There are many metals that do not have iron as their base metal. These metals, known as nonferrous metals, offer specific properties or combinations of properties that make them ideal for tasks where ferrous metals are not suitable. Nonferrous metals ...
Posted by Vishnu on August 19th, 2009 12:47 AM | 26 Comments Ferrous metals are those that contain iron as the base metal. The properties of ferrous metals may be changed by adding various alloying elements. The chemical and mechanical properties need to be combined to produce a metal to serve a ...
Posted by Vishnu on August 19th, 2009 12:25 AM | 68 Comments General
Part of the metalworker’s skill lies in the ability to identify various metal products brought to the shop. The metalworker must be able to identify the metal so the proper work methods can be applied. For Army equipment, drawings should ...
Posted by Vishnu on August 18th, 2009 08:40 PM | 25 Comments The internal reactions of a metal known as mechanical properties. The to external forces are mechanical properties are directly related to each other. A change in one property usually causes a change in one or more additional properties.
For example, if ...
Posted by Vishnu on August 18th, 2009 07:52 PM | 30 Comments All metals may be classified as ferrous or nonferrous. A ferrous metal has iron as its main element. A metal is still considered ferrous even if it contains less than 50 percent iron, as long as it contains more iron ...
