Spatter or debris in welding refers to the expulsion of molten metal particles and other contaminants from the weld pool during the welding process. Spatter can adhere to the surface of the weld, adjacent areas, or surrounding equipment, leading to surface irregularities, roughness, and contamination. While spatter may not always directly affect the integrity of […]
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Arc strike is a weld defect that occurs when an electric arc unintentionally strikes the surface of the base metal or nearby areas during welding operations. This phenomenon can lead to localized heating, melting, and surface damage, resulting in the formation of irregularities, such as cracks, pits, or surface contamination. While arc strikes may not
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Cap undercut is a weld defect characterized by the formation of a groove or depression at the toe of the weld bead where it meets the base metal. This defect typically occurs due to improper welding technique, such as excessive heat input or incorrect electrode angle, leading to the melting or removal of base metal
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Cluster porosity in welding refers to the presence of multiple small voids or gas pockets clustered together within the weld metal. This defect occurs when gas, typically hydrogen or nitrogen, becomes trapped in the weld pool during solidification. Cluster porosity can compromise the structural integrity and mechanical properties of the weld joint, leading to issues
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Silica inclusions in welding refer to a weld defect where small particles or pockets of silica, commonly found in welding flux or on the surface of base metal, become trapped within the weld metal during the welding process. Silica inclusions can compromise the structural integrity and mechanical properties of the weld joint, leading to issues
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“Flush weld” is not typically considered a weld defect; rather, it is a term used to describe a specific type of weld joint configuration where the surface of the weld is level or flush with the surface of the base metal. A flush weld is often desired in many welding applications, particularly in structural welding
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Unfused filler wire, also known as lack of fusion with filler wire, is a weld defect that occurs when the filler wire fails to fuse properly with the base metal or previously deposited weld metal. This defect typically arises due to improper welding parameters, inadequate heat input, or improper welding technique. Unfused filler wire can
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“No weld metal” is not typically considered a weld defect, as it refers to the absence of weld metal in a specific area where welding was intended to occur. This situation can arise due to various reasons, such as incomplete fusion, lack of penetration, or improper welding technique. While it is not a defect in
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Copper inclusions in welding refer to a weld defect where small particles or droplets of copper are inadvertently incorporated into the weld metal during the welding process. This defect typically occurs when copper contamination is present on the surface of the base metal, filler metal, or welding equipment. Copper inclusions can compromise the structural integrity
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HAZ (Heat Affected Zone) cracking, also known as heat-affected zone cracking or HAZ crack, is a type of weld defect that occurs in the area adjacent to the weld zone, known as the heat-affected zone. This defect typically happens due to the formation of brittle microstructures within the heat-affected zone during the welding process. HAZ
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