Poor start and stop welds refer to defects that occur at the beginning and end of a weld bead, where the weld metal does not fuse properly with the base material. These defects can result from factors such as improper welding technique, insufficient preheating, or inadequate preparation of the workpiece. Poor start and stop welds can compromise the structural integrity […]
Cap undercut intermittent weld defect refers to the presence of intermittent grooves or depressions along the top surface (cap) of a weld bead. These defects occur when the welding process results in irregularities in the top surface of the weld bead, where portions of the weld metal are undercut, leaving intermittent gaps or depressions. This defect can compromise the structural […]
Longitudinal cracks in welds are defects characterized by cracks that run parallel to the direction of the weld axis. These cracks can occur due to various factors such as high levels of residual stress, improper welding parameters, inadequate joint preparation, or material impurities. Longitudinal cracks can compromise the structural integrity and mechanical properties of the weld, leading to potential issues […]
Incomplete filled groove weld is a welding defect that occurs when the weld metal does not completely fill the groove or joint intended to be welded. This defect may happen due to insufficient weld metal deposition, improper welding technique, or inadequate joint preparation. Incomplete filled groove welds can compromise the structural integrity of the weld joint, leading to reduced strength […]
Root undercut in welds is a defect characterized by a groove or depression along the root of a weld joint, typically at the juncture between the base materials. This defect occurs when excessive welding parameters or improper welding techniques cause the weld metal to erode or undercut the edges of the base materials, leaving a concave or undercut profile at […]
Porosity in welds is a defect characterized by the presence of small voids or cavities within the weld metal. These voids are typically caused by the entrapment of gas, such as hydrogen, nitrogen, or oxygen, during the welding process. Porosity can significantly compromise the mechanical properties and structural integrity of the weld, leading to issues such as reduced strength, increased […]
Blowholes or piping in welds are defects characterized by the presence of small voids or cavities within the weld metal. These defects occur when gases, such as hydrogen, nitrogen, or oxygen, become trapped in the weld pool during solidification. Blowholes or piping can compromise the structural integrity and mechanical properties of the weld, leading to potential issues such as reduced […]
“Hard stamping” is not a widely recognized weld defect or term in welding quality assessment. However, based on the phrase, it could refer to a situation where excessive force or pressure is applied to a weld, causing deformation or damage to the weld and surrounding material. This could potentially result in a variety of defects such as distortion, cracking, or […]
Cap undercut intermittent weld defect refers to the presence of intermittent grooves or depressions along the top surface (cap) of a weld bead. These defects occur when the welding process results in irregularities in the top surface of the weld bead, where portions of the weld metal are undercut, leaving intermittent gaps or depressions. This defect can compromise the structural […]
Wormholes or piping in welds are defects characterized by the presence of small, irregular voids or tunnels within the weld metal. These defects can occur due to various factors such as improper shielding gas coverage, inadequate cleaning of base materials, or excessive welding parameters. Wormholes and piping can compromise the structural integrity and mechanical properties of the weld, leading to […]