Welding_processes_handbook

Weldingprocesseshandbook©2003,WoodheadPublishingLtdWeldingprocesseshandbookKlasWemanCRCPressBocaRatonBostonNewYorkWashington,DCWOODHEADPUBLISHINGLIMITEDCambridge,England©2003,WoodheadPublishingLtdPublishedbyWoodheadPublishingLtd,AbingtonHall,AbingtonCambridgeCB16AH,England:Productorcorporatenamesmaybetrademarksorregisteredtrademarks,andareusedonlyforidentificationandexplanation,withoutintenttoinfringe.BritishLibraryCataloguinginPublicationDataAcataloguerecordforthisbookisavailablefromtheBritishLibrary.LibraryofCongressCataloginginPublicationDataAcatalogrecordforthisbookisavailablefromtheLibraryofCongress.WoodheadPublishingISBN1855736896CRCPressISBN0-8493-1773-8CRCPressordernumber:WPI773PrintedbyTJInternational,Padstow.Cornwall©2003,WoodheadPublishingLtdContentsPreface...............................................................................................................ixARCWELDING.ANOVERVIEW............................................................1Historyofwelding..................................................................................1Terminology............................................................................................3Distortion....................................................................................................7Theweldingarc................................................................................8Shieldinggases................................................................................12Powersources...............................................................................13GASWELDING......................................................................................26Equipment................................................................................................26TIGWELDING.........................................................................................31Adescriptionofthemethod.....................................................................31................................................................................................Equipment31Consumables...........................................................................................35PLASMAWELDING...............................................................................37.....................................................................Adescriptionofthemethod37Equipment................................................................................................39Gasesforplasmawelding........................................................................40Theadvantagesoftheplasmamethod....................................................40MIGIMAGWELDING...............................................................................41Equipment................................................................................................41Settingofweldingparameters...............................................................44...........................................................................................Consumables47Weldquality.............................................................................................60METALARCWELDINGWITHCOATEDELECTRODES......................63Descriptionofthemethod........................................................................63Equipment................................................................................................63Electrodes................................................................................................64Welddefects............................................................................................67SUBMERGEDARCWELDING...............................................................68Description...............................................................................................68Equipment.......................