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ultrasonic weldingthis is a solid state welding process for joining similar or dissimilar metals by application of high frequency vibratory energy to
laser beam weldingin this process fusion is achieved by directing a highly concentrated beam to a fine spot the word laser is an abbreviation of
electron beam weldingin this process fusion is achieved by focusing a high power density beam of electrons on the area to be joined upon striking the
explosive welding i claddingin this process two pieces of metal are impacted together at an extremely high velocity of impact achieved by the
friction weldingin this friction is employed to generate heat bw two sliding or rotating metal surfaces this process is usually carried out by
induction pressure weldingin this process the current is induced by high frequency induction process in the job due to electrical induction the job
foil butt seam weldingthis is a modification of seam welding in which thin narrow strips of metal arc introduced between one or both of the circular
roller spot weldingin this process a series of intermittent spot welds are made using wheels or rollers as electrodes the rollers are power driven
series spot weldingin series welding a portion of the secondary current by passes any weld nugget being formed and this shunt current passes through
multiple spot weldingthis is a modification of spot welding in which two or more than two welds can be obtained simultaneously from each transformer
stitch weldingthis is a variation of spot welding in which a series of overlapping spot welds are made in the same manner as stitching cloth stitch
flash butt weldingthis process is an extension of resistance butt welding the parts to be joined are gripped in the clamps and their interfaces are
projection welding this is a modified method of making single or multiple spot welds projection welds are made by providing an embossment or
resistance seam weldingthis is similar to spot welding except that the copper alloy electrodes are in the form of circular rollers the overlapping
resistance spot weldingin this process a spot of weld is made between overlapping sheets by means of two cylindrical copper alloy electrodes one on
resistance weldingthe types are as followsresistance spot weldingresistance seam weldingprojection weldingflash butt weldingflash butt weldingstitch
flux shielded arc weldingthis process is popularly known as submerged arc welding sawthis is a fully mechanised welding process the electrode is a
flux cored arc welding fcawthis is a variation of gmaw where solid wire is replaced by flux cored wire the equipments and accessoriesare the same
co2 weldingco2 welding is a variation of gmaw here the inert gas is replaced by gas mixtures or carbon dioxide which are chemically active the carbon
gas metal arc welding gmawgmaw is abbreviation for gas shielded metal arc welding here fusion is achieved by an electric arc formed between work
gas tungsten arc welding gtawgas tungsten arc welding gtaw is popularly known as tungsten inert gas welding tig in this process an arc is struck
shielded metal arc welding smawit also known as manual metal arc welding mmaw the heat required for welding is generated by the electric arc formed
brazingbrazing is a group of welding processes which produces coalescence of materials by heating them to a specific temperature and by using a
solderingthis is a group of join process which generates coalescence of materials by heating them to a suitable temperature and by using a filler
classification based on mode of weldingmanual welding in this welding the entire welding operation is performed and controlled by hand here there are