the least amount of welding material possible. Butt welds are prevalent in automated welding processes, such as submerged-arc welding, due to their relative...

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

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

Butt welding is when two pieces of metal are placed end-to-end without overlap and then welded along the joint (as opposed to lap joint weld, where one...

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...

tungsten arc welding (GTAW, also known as tungsten inert gas welding or TIG, and heliarc welding when helium is used) is an arc welding process that uses...

resistance welding process can be further classified by the geometry of the weld and the method of applying pressure to the joint: spot welding, seam welding, flash...

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...

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...

Submerged arc welding (SAW) is a common arc welding process. The first SAW patent was taken out in 1935. The process requires a continuously fed consumable...

welding. Also known as manual metal arc (MMA) welding or stick welding. Also known as electric resistance welding (ERW). "جوشکاری گدازی FLOW Welding |...

Fillet welding refers to the process of joining two pieces of metal together when they are perpendicular or at an angle. These welds are commonly referred...

at The Welding Institute (TWI) in the UK in 1991. TWI held patents on the process, the first being the most descriptive. Friction stir welding is performed...

Friction welding (FWR) is a solid-state welding and bonding process that generates heat through mechanical friction between workpieces in relative motion...

spot welding or other means. An improvement over fishplate rail connectors is directly bonding rails together using thermite or flash butt welding. In...

vapours that might oxidize or contaminate a welding joint as it is being welded and immediately after welding. Stainless steels, duplex steels, titanium-...

Cold welding or contact welding is a solid-state welding process in which joining takes place without fusion or heating at the interface of the two parts...

Arc welding is a welding process that is used to join metal to metal by using electricity to create enough heat to melt metal, and the melted metals, when...

finished weld. Fit-up of weld joint - tack welding the base material components (using hot gas welding) or using a clamping system Welding - adding the...

All sections contain welding specifications, however most relevant information is contained in the following: The American Welding Society (AWS) publishes...

ultrasonic welding. Ultrasonic welding is a very popular technique for bonding thermoplastics. It is fast and easily automated with weld times often...

polymer solidifies and a weld joint is made. The two most important welding parameters that affect the mechanical performance are welding pressure and time....

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

of metal prior to welding, see Welding joint#V-joints. The bevel provides a smooth clean edge to the plate or pipe and allows a weld of the correct shape...

Forge welding (FOW), also called fire welding, is a solid-state welding process that joins two pieces of metal by heating them to a high temperature and...

Spin welding is a form of friction welding used to join thermoplastic parts. The parts to be welded must be round, and in plane with each other. Like all...

Exothermic welding, also known as exothermic bonding, thermite welding (TW), and thermit welding, is a welding process that employs molten metal to permanently...

Electron-beam welding (EBW) is a fusion welding process in which a beam of high-velocity electrons is applied to two materials to be joined. The workpieces...

filler metal into the joint, with the filler metal having a lower melting point than the adjoining metal. Brazing differs from welding in that it does not...

Electrofusion welding is a form of resistive implant welding used to join pipes. A fitting with implanted metal coils is placed around two ends of pipes...