metalworking, a welding defect is any flaw that compromises the usefulness of a weldment. There are many different types of welding defects, which are classified...

catastrophic failure. The practice of welding inspection involves evaluating the welding process and the resulting weld joint to ensure compliance with established...

Welding slag is a form of slag, or vitreous material produced as a byproduct of some arc welding processes, most specifically shielded metal arc welding...

Hyperbaric welding is the process of extreme welding at elevated pressures, normally underwater. Hyperbaric welding can either take place wet in the water...

methods include solvent welding (of thermoplastics) using chemicals to melt materials being bonded without heat, and solid-state welding processes which bond...

Plastic welding is welding for semi-finished plastic materials, and is described in ISO 472 as a process of uniting softened surfaces of materials, generally...

missiles to be carried by the submarine. In the early 1980s, structural welding defects had been covered up by falsified inspection records, and this led to...

X-ray welding is an experimental welding process that uses a high powered X-ray source to provide thermal energy required to weld materials. The phrase...

Gas metal arc welding (GMAW), sometimes referred to by its subtypes metal inert gas (MIG) and metal active gas (MAG) is a welding process in which an...

Flux-cored arc welding (FCAW or FCA) is a semi-automatic or automatic arc welding process. FCAW requires a continuously-fed consumable tubular electrode...

accommodate the extensive deformation during welding. This may result in long, tunnel-like defects running along the weld, which may occur on the surface or subsurface...

Dissimilar friction stir welding (DFSW) is the application of friction stir welding (FSW), invented in The Welding Institute (TWI) in 1991, to join different...

early February 2019. On May 10, 2019, it was found that there was a welding defect on the collision pillars of the R179, but not all trains on property...

tungsten arc welding (GTAW, also known as tungsten inert gas welding or TIG, tungsten argon gas welding or TAG,[citation needed] and heliarc welding when helium...

(stick welding) processes, or fabrication of weld joints which primarily involves GMAW (MIG welding). Welding defect Industrial radiography Robot welding Pipeline...

Electric resistance welding (ERW) is a welding process in which metal parts in contact are permanently joined by heating them with an electric current...

welding, undercutting is when the weld reduces the cross-sectional thickness of the base metal. This type of defect reduces the strength of the weld and...

Tripicchio, Paolo; Camacho-Gonzalez, Gerardo; D'Avella, Salvatore (2020). "Welding defect detection: coping with artifacts in the production line". The International...

Hot-gas welding is a manual plastic welding process for joining thermoplastic materials. A hot-gas torch is used to direct hot air to both the joint surface...

Shielded metal arc welding (SMAW), also known as manual metal arc welding (MMA or MMAW), flux shielded arc welding or informally as stick welding, is a manual...

gas porosity, shrinkage defects, mould material defects, pouring metal defects, and metallurgical defects. The terms "defect" and "discontinuity" refer...

his process. Today, thermite is used mainly for thermite welding, particularly for welding together railway tracks. Thermites have also been used in...

applications. K. Kim et al. studied its ability to identify weld defects in laser welding polycarbonate to acrylonitrile butadiene styrene copolymer....

in the weld causing it to fail. The typical welding defects (lack of fusion of the weld to the base metal, cracks or porosity inside the weld, and variations...

Fatigue of welded joints can occur when poorly made or highly stressed welded joints are subjected to cyclic loading. Welding is a manufacturing method...

order to correct a welding defect. The work is needed to allow the streetcars to last 30 years, their contractual service life. Some welds were not properly...

method of girth weld scanning is designed to detect the following weld defects: Planar defects (e.g., lack of fusion, cracks) Volumetric defects (e.g., porosity...

1965 GTO no Maiden flight of Briz-M upper stage. Contaminants from welding defect in the turbopump caused the second-stage engine No. 3 to catch fire...

commonly this concept is used in welding, but it is also used when heat treating and casting cast iron. In welding, equivalent carbon content (C.E) is...

the welds made on these materials are important in ensuring people receive safe products. There are not codes made specifically for the welding of advanced...