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Welding Representation

Chapter 22

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2Technical Drawing 13thEditionGiesecke, Mitchell, Spencer, Hill Dygdon, Novak,

2! "earson #d$cation, %pper Saddle River, N&'()*+

-./ectives

Descri.e the vario$s 0eldingprocesses

Dra0 the co11on 0elding

sy1.ols

Di1ension a 0elding dra0ing$sing standard NS 0eldingnotations

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3Technical Drawing 13thEditionGiesecke, Mitchell, Spencer, Hill Dygdon, Novak,

2! "earson #d$cation, %pper Saddle River, N&'()*+

-./ectives 4cont+5

denti6y and dra0 a 7llet 0eld,groove 0eld, .ack 0eld, spot 0eld,

sea1 0eld, pro/ection 0eld, and8ash 0eld

Descri.e the $se o6 0elding

sy1.ols in CD dra0ings

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(Technical Drawing 13thEditionGiesecke, Mitchell, Spencer, Hill Dygdon, Novak,

2! "earson #d$cation, %pper Saddle River, N&'()*+

Welding "rocesses

9he principal 1ethods o6 0eldingare: Gas 0elding

rc 0elding

Resistance 0elding

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)Technical Drawing 13thEditionGiesecke, Mitchell, Spencer, Hill Dygdon, Novak,

2! "earson #d$cation, %pper Saddle River, N&'()*+

Standard Sy1.ols

Welding dra0ings are a specialtype o6 asse1.ly dra0ing as

0eld1ents are co1posed o6 an$1.er o6 separate pieces6astened together as a $nit

&oints are all sho0n as they 0o$ldappear .e6ore 0elding

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;Technical Drawing 13thEditionGiesecke, Mitchell, Spencer, Hill Dygdon, Novak,

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Weld1ent Dra0ing

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2! "earson #d$cation, %pper Saddle River, N&'()*+

Welding Sy1.ols

9he ite1s that can .e speci7ed ina 0elding sy1.ol are: 9ype o6 0eld "rocess Depth o6 .evel, si

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2! "earson #d$cation, %pper Saddle River, N&'()*+

Welding Sy1.ols

Cont+ Groove angle

Root opening Length o6 0eld N$1.er and pitch o6 0elds Whether the 0eld is to .e 7eld 0elded ll aro$nd indicator Which side o6 the 1aterial is to .e

0elded

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2! "earson #d$cation, %pper Saddle River, N&'()*+

>asic Welds and Sy1.ols

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2! "earson #d$cation, %pper Saddle River, N&'()*+

9ypes o6 Welded &oints

9here are 7ve .asic types o60elded /oints: >$tt /oint

Corner /oint

9@/oint

Lap /oint #dge /oint

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2! "earson #d$cation, %pper Saddle River, N&'()*+

9ypes o6

Welded &oints

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2! "earson #d$cation, %pper Saddle River, N&'()*+

9ypes o6 Welds

9here are 6o$r types o6 arc and gas0elds: >ack or .acking 0eld =illet 0eld

"l$g or slot 0eld

Groove 0eld

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2! "earson #d$cation, %pper Saddle River, N&'()*+

9ypes o6 Welds

9he 6o$r .asic resistance 0eldsare: Spot 0eld "ro/ection 0eld

Sea1 0eld

=lash or $pset 0eld

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2! "earson #d$cation, %pper Saddle River, N&'()*+

Welding Sy1.ols

9he .asic ele1ent o6 the sy1.ol isthe A.entB arro0 9he arro0 points to the /oint 0here

the 0eld is to .e 1ade

ttached to the re6erence line, or

shank, is the sy1.ol 6or the desired0eld

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Welding Sy1.ols

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Co1plete Welding Sy1.ol

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Technical Drawing 13thEditionGiesecke, Mitchell, Spencer, Hill Dygdon, Novak,

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=illet Welds

9he $s$al 7llet 0eld has e$al legs

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Technical Drawing 13thEditionGiesecke, Mitchell, Spencer, Hill Dygdon, Novak,

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Groove Welds

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Technical Drawing 13thEditionGiesecke, Mitchell, Spencer, Hill Dygdon, Novak,

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>ack or >acking Welds

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Technical Drawing 13thEditionGiesecke, Mitchell, Spencer, Hill Dygdon, Novak,

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S$r6ace Welds

9he s$r6ace 0eldsy1.ol indicates

a s$r6ace to .e.$ilt $p

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"l$g and Slot Welds

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22Technical Drawing 13thEditionGiesecke, Mitchell, Spencer, Hill Dygdon, Novak,

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Spot Welds

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23Technical Drawing 13thEditionGiesecke, Mitchell, Spencer, Hill Dygdon, Novak,

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Sea1 Welds

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2(Technical Drawing 13thEditionGiesecke, Mitchell, Spencer, Hill Dygdon, Novak,

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"ro/ection Welds

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2)Technical Drawing 13thEditionGiesecke, Mitchell, Spencer, Hill Dygdon, Novak,

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=lash and %pset Welds

=lash and $pset 0eld sy1.ols haveno arro0@side or other@side

signi7cance

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2;Technical Drawing 13thEditionGiesecke, Mitchell, Spencer, Hill Dygdon, Novak,

2! "earson #d$cation, %pper Saddle River, N&'()*+

Welding pplications

Welding is o6ten cheaper 0henonly one or a 6e0 identical parts

are re$ired Welding is also s$ita.le 6or large

str$ct$res that are dic$lt or

i1possi.le to 6a.ricate entirely in ashop

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2'Technical Drawing 13thEditionGiesecke, Mitchell, Spencer, Hill Dygdon, Novak,

2! "earson #d$cation, %pper Saddle River, N&'()*+

Welding 9e1plates

Welding te1plates can si1pli6ydra0ing 0elding sy1.ols .y hand

9hey have all the 6or1s needed 6ordra0ing the arro0, 0eld sy1.ols,and s$pple1entary sy1.ols

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Technical Drawing 13thEdition 2! "earson #d$cation, %pper Saddle River, N&'()*

Co1p$ter Graphics

Welding sy1.ol li.raries availa.lein CD and allo0 6or rapid

application o6 acc$rate, $ni6or1sy1.ols that are in co1pliance0ith standards