BASIC COURSE ON WELDINGBASIC COURSE ON WELDING PURPOSEPURPOSE

The purpose of this course is to provide The purpose of this course is to provide ad !a"e #ourse$f uderstad the ad !a"e #ourse$f uderstad the %asic ter!s ad de&itio re$ated 'ith %asic ter!s ad de&itio re$ated 'ith the process of 'e$di()the process of 'e$di() SCOPE O* PRESENTATIONSCOPE O* PRESENTATIONDe&itios + t#pes of ,oit-We$dDe&itios + t#pes of ,oit-We$dWe$d S#!%o$sWe$d S#!%o$sWe$di( ProcessesWe$di( ProcessesBasic No.Destructive Testi(Basic No.Destructive Testi( DE*INITIONSDE*INITIONS,OINT/,OINT/A$i(!et of !e!%ersA$i(!et of !e!%ersWELD ,OINT/WELD ,OINT/ A$i(i( the !eta$s for 'e$di() A$i(i( the !eta$s for 'e$di() WELDING/WELDING/ ,oii( 0 !ateria$s 'ith the use of heat-pressure ,oii( 0 !ateria$s 'ith the use of heat-pressure 'ith or 'ithout additio of &$$er !eta$)'ith or 'ithout additio of &$$er !eta$) T1PES O* ,OINTST1PES O* ,OINTSButt JointT- JointLap JointCorner JointC$osed Ope T1PES O* WELDST1PES O* WELDSButt Weld Fillet WeldSpot/Seam WeldPlug Weld Edge Weld T1PICAL WELD ,OINT T1PICAL WELD ,OINT TER2INOLOG1TER2INOLOG1 T1PES O* SINGLE BUTT T1PES O* SINGLE BUTT PREPARATIONPREPARATION T1PES O* DOUBLE BUTT T1PES O* DOUBLE BUTT PREPARATIONPREPARATION WELDED BUTT ,OINTSWELDED BUTT ,OINTS WELDED T.,OINTSWELDED T.,OINTS WELDED LAP ,OINTWELDED LAP ,OINT WELDED CORNER ,OINTSWELDED CORNER ,OINTS WELDED CORNER ,OINTSWELDED CORNER ,OINTS CO2PLETED WELD CO2PLETED WELD TER2INOLOG1TER2INOLOG1*ace SideRoot SideRoot GapRoot LadWe$d ToeWe$d Reiforce!etRoot peetratioBeve$ A($eBUTT WELD FILLET WELD SIGNI*ICANCE O* BE3ELSIGNI*ICANCE O* BE3ELEsuri( fusio a$o( the side 'a$$s of Esuri( fusio a$o( the side 'a$$s of the 4oitthe 4oitAccessi%i$it# for We$di(Accessi%i$it# for We$di( BREAK FOR 10 MINUTES WELDING S12BOLSWELDING S12BOLSWe$di( s#!%o$s provide a s#ste! for We$di( s#!%o$s provide a s#ste! for p$aci( co!p$ete 'e$di( ifor!atio o p$aci( co!p$ete 'e$di( ifor!atio o dra'i(dra'i(Graphica$ represetatio of 'e$d ic$udi( Graphica$ represetatio of 'e$d ic$udi( directio si(i&cacedirectio si(i&caceWe$di( s#!%o$ 5uic"$# idicate to the We$di( s#!%o$ 5uic"$# idicate to the Desi(er6 Drafts!a6 Supervisor ad 'e$di( Desi(er6 Drafts!a6 Supervisor ad 'e$di( persoe$ 'hich 'e$di( techi5ue is persoe$ 'hich 'e$di( techi5ue is re5uired to satisf# the re5uire!ets for re5uired to satisf# the re5uire!ets for !ateria$ stre(th ad other re5uire!ets!ateria$ stre(th ad other re5uire!ets STANDARDS *OR WELD STANDARDS *OR WELD S12BOLSS12BOLS0 T#pes of Stadards are used to de&e 0 T#pes of Stadards are used to de&e 'e$d s#!%o$'e$d s#!%o$AWS A0)7 8US9 + BS 7:: 8U;9AWS A0)7 8US9 + BS 7:: 8U;9BS EN 00i(h $eve$ of s"i$$ is re5uired to deposit soud 'e$d >i(h $eve$ of s"i$$ is re5uired to deposit soud 'e$dDepositio rate caot icreased %e#od certaiDepositio rate caot icreased %e#od certai $eve$ $eve$Eas# to cotro$ heatEas# to cotro$ heat No e$ectrode coditioi( is re5uired No e$ectrode coditioi( is re5uired G2AW-*CAW.PRE3IEWG2AW-*CAW.PRE3IEW>i(h productivit# We$di( process>i(h productivit# We$di( process2ost co!!o$# used process for 'e$di( 2ost co!!o$# used process for 'e$di( thi sheet !ateria$thi sheet !ateria$Certai c$assi&catio of e$ectrodes ca %e Certai c$assi&catio of e$ectrodes ca %e used i a$$ positio 'e$di(used i a$$ positio 'e$di(2ediu! s"i$$ed 'e$di( process2ediu! s"i$$ed 'e$di( processNot usefu$ for root pass 'e$di( i fu$$ Not usefu$ for root pass 'e$di( i fu$$ peetratio 'e$ds)peetratio 'e$ds)Eas# to cotro$ heat Eas# to cotro$ heat No e$ectrode coditioi( is re5uiredNo e$ectrode coditioi( is re5uired SAW.PRE3IEWSAW.PRE3IEW>i(h !eta$ deposit 'e$di( process>i(h !eta$ deposit 'e$di( process2ost$# usea%$e i Cat or horiDota$ positio2ost$# usea%$e i Cat or horiDota$ positio>i(h s"i$$ re5uire to attai a soud deposit of >i(h s"i$$ re5uire to attai a soud deposit of 'e$d !eta$'e$d !eta$*$u? eed to %e coditioed %efore use*$u? eed to %e coditioed %efore use>i(h heat iput process>i(h heat iput processSet.up ti!e is re$ative$# $ar(e as co!pared 'ith Set.up ti!e is re$ative$# $ar(e as co!pared 'ith a$$ other process) 2ost$# set.up ti!e sha$$ %e a$$ other process) 2ost$# set.up ti!e sha$$ %e co!pesated for hi(h thic"ess 'e$d deposit)co!pesated for hi(h thic"ess 'e$d deposit) NON.DESTRUCTI3E TESTINGNON.DESTRUCTI3E TESTINGCo!!o T#pe of NDT used/Co!!o T#pe of NDT used/Radio(raphic Testi(Radio(raphic Testi(U$trasoic Testi(U$trasoic Testi(2a(etic Partic$e testi(2a(etic Partic$e testi(Li5uid Peetrat Testi(Li5uid Peetrat Testi( RADIOGRAP>IC TESTINGRADIOGRAP>IC TESTINGUsefu$ i e?a!ii( the itera$ defects of Usefu$ i e?a!ii( the itera$ defects of a$!ost a$$ !ateria$s e?cept ver# thi a$!ost a$$ !ateria$s e?cept ver# thi sheetssheetsProduces per!aet record of testi(Produces per!aet record of testi(Need access o %oth sides of o%4ect eed Need access o %oth sides of o%4ect eed to %e Radio (raphedto %e Radio (raphedRadiatio is har!fu$ for hu!as6 so safet# Radiatio is har!fu$ for hu!as6 so safet# procedures eed to %e fo$$o'ed strict$#procedures eed to %e fo$$o'ed strict$#Caot produce i!!ediate resu$tsCaot produce i!!ediate resu$ts ULTRASONIC TESTINGULTRASONIC TESTINGSoud 'aves are used to detect itera$ Soud 'aves are used to detect itera$ defects of !ateria$)defects of !ateria$)Si($e side access is suEcietSi($e side access is suEcietPri!ar# used for !ateria$s havi( thic"ess Pri!ar# used for !ateria$s havi( thic"ess at $east F!! or !oreat $east F!! or !oreNeed hi(h $eve$ of s"i$$ for iterpreti( the Need hi(h $eve$ of s"i$$ for iterpreti( the reCectios fro! the defects)reCectios fro! the defects)Istat resu$tsIstat resu$tsNo per!aet recordNo per!aet recordNot #ie$d (ood resu$ts i coarse (rai Not #ie$d (ood resu$ts i coarse (rai structure !ateria$s structure !ateria$s 2AGNETIC PARTICLE TESTING2AGNETIC PARTICLE TESTINGApp$ica%$e o$# for *erro.2a(etic App$ica%$e o$# for *erro.2a(etic !ateria$s!ateria$sUsefu$ i detecti( o$# surface ad Usefu$ i detecti( o$# surface ad su%.surface defectssu%.surface defectsRe5uire de!a(etiDi( to avoid arc Re5uire de!a(etiDi( to avoid arc %$o' duri( 'e$di( for hi(h hardess %$o' duri( 'e$di( for hi(h hardess !ateria$s!ateria$sIvo$ves E$ectric haDardIvo$ves E$ectric haDard PENETRANT TESTINGPENETRANT TESTINGUti$ises the pricip$e of capi$$ar# rise Uti$ises the pricip$e of capi$$ar# rise for the detectio of defects for the detectio of defects Usefu$ o$# for detecti( surface Usefu$ o$# for detecti( surface defectsdefectsLo' $eve$ s"i$$ is re5uiredLo' $eve$ s"i$$ is re5uiredPost c$eai( is re5uiredPost c$eai( is re5uired T>AN; 1OUT>AN; 1OUA# GuestiosHA# GuestiosH