Explain about heat affected zone in welding
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The Heat-Affected Zone (HAZ) refers to a non-melted area of metal that has experienced changes in its material properties as a result of exposure to high temperatures. The alterations in material properties are usually a result of welding or high-heat cutting procedures. The HAZ is identified as the area between the weld or cut and the base metal. These areas can vary in size and severity depending on the properties of the materials involved, the intensity and concentration of heat, and the process employed.
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