Practical Record Date ..
29-01 -2019
Expt. No. Page No.16.
SAFETPRCAUTION
1. goggles while
Usa ehipping slag a wd.
2Chack ceonections electxee hadder and mahine
3 Aluays have wel! emdiladed ssed.AwagzUse
exhaust an os pnpost
H welding wiies shauld e completey isulated.
5. Aucs IsQ gloes amd apoS to sove te body
Rem eld mattes splattex and sas
sPsepe eonhing shauld o thore
zIn spor woskshap wlo weledirg postabla s00
Should be sd.
uidb aly wcter, grease or hat melal aich
domag he insulaicn.
9. Alys suiteh the mohire wom t Js n n se.
pateto hidd.
psecto ahied whes
splattered
42 Dert wean ese lhes,
Teacher's Signature :
CHIPPING HAMMER
BALL PEEN HAMMER
CHISEL
WIRE BRUSH
Date .2.9-01-2019
ractical Record
No. Pago No. .17
xpt.
WELDINGTOOLS
Rhippíng Haoreti - Mato c rild eol
2Boper bammer'' - Matle c coskor del
sod fos hamneiing
(3) Wire brusb:, - Made cstealwise
-lSed tos Haiing he yeba
(4) Chiso:- Mde o sankog sledl
Used to cuding ppse
5)Spanoeri - Mado saaon sted
- dsced for apoming the inder
Teacher's Signature:
WELDING
SCREEN ELEC TRODE
HOLDESR
STEEL RULE
SCRIBER
FILE
actical Record Date 29-01-20
Page No.
18
pt. No.
- Psadects fem lo dng wdg
lElectode holdex - Mode coppes aloy
- d os halding dleckda
e)iber' - Mada ae canben teal.
- Used tos rranking
siedRalegi-Made d atel
-Used for ruaSning punpses
0) Fila - Made high sanben el
Teacher's Signature
Elurtsde
-FSusx soting
-yostaus Shidd
-Mdo) poodicles
WELD PARENT
1METAL
Molen pel
ARC WELD IN PROGRESS
actical Record Date q-0
Kpt. No. Page No.
ARG WDING
EOUIPMENTS
The most cemmonly ustd eaupren
KAAc/DC power Suppy
2 Diesl engine qumeratos sa
(3) Transorme secties st
4) welding daralGsmer Sat
(6 Face shield
chieging hamnes
6) wise bush
9) Elactscde helder
1) Eorhing clampS
3) Salety gaaqlos
4) Hamd glsyes
A5) Apen, slooves etc.
Teacher's Signature :
Elortydc Haleder
Ebctodo
elbcodo holder
Work Taralorer
META L TABLE
Cordholler
MAINS
Boad boled |INPUT
BLOCK DIAGRAM OF ELECTRIC ARC WELDING GET-U
Date 24-01-2019
Practical Record
Page No. ...CO.
Expt. No.
AC orDC POWER SUPPLY
b AC matox.
he aVerago valeo he ghneotOs JS g5V. The cont
Tanges rom 15-400A, I1 haS got voiabe oltage.
DDESEL GENERATORSE T
engie. est
sane Is Ac mador gumnator, we se is
it s
whos electicy s nst auiDable.
TRANSFORMER RECIFIER SE
direcen bcaus!Jt hass a
Valve or Sad veter jnsallod rthe elete sde
DWELDNG TRANSFORMER
samd sacerdary
has t sicut, a
a
Teacher's Signature
Practical Record Date 24 -01-2019
Expt. No. Page No. ..21.
cicct, The inpud is qiven
peinary
electomagnate üncur oo,the eANDent
ko weldng . By
thhugb the Sicordary coil.
FUNG TIONS OF FHUX
elt talse to jincagse the rote malal deposi Go
andpmdiaieo
It erme slog cuidth impuhes notal
It al bs in protec ng tha malten metal tro oxuars
and nitrogm pruset atmosphere hus
ereventog cordatie
)Tt psovides shamcals whih have he aiky o
stabizo he
Jor adding vaious aloying
eloents jnto weld motals.
) Itdireris tha ac and nale nstal boìng doposited.
Teacher's Signature
ectical Record Date q -01-2019
pt. No. Page No...2G..
DIEFERENCE INAC &DC WELDING
AC WELDING DC WELDING
No ebm a Prabla
Not peferred ta welding Prefened fo7 w elding
shot motal.
Weldinq tonsosmer JS yenanator s Js
cheapes.
1t san be used only whon An engine dìven DC
qomorator sas ke sed even in
absemce c AC main
econenical.
Maintainamci of small
jS easies,
Bodh bane ceated
elactrede cos be sed.
Teacher's Signature
:
Jner Coxe (3200°C) Outer
enelope
NEUTRAL FLAME
Inner core(Psirded &sral) Small and NarrOW
(3500c)
Ouder emelspe
OXIDISING FLAMEnt
Aorger irrer so.(3050c) Aratlone faather slue envelspe
REDUCING FLAME
Expt. No. Page No....a..
IYPES O FLAMES
Neutral Flame
4:1. The tepesatune cf neutral is abot 3200°c,
Mame
Jt js ight blu jn salaw and is suanded
by ater envelope uuhic is daker jn de
calau than Šnner
Oxidising Flame -
The temge satunu Gxidising lomajs abrut 35O o°C.
ue jncrease Supply oxygon them odising lang
JS petucod Jnnesco S mo eointed, outex
ame mueh shotes ,
t buuns lor stedl because
Goidises sted.
Reduring Flame
l vaume al oxyges supplied to nauhal lame js
xedured, redicing ane sich n actylne js producod. ts
demperatae o Yeducin lame iS abut 3050'c,
alay elel yed or wding high canbor stel
62331234 Teacher's Signature
Practical Record
Date £4-01-2019
Expt. No.
Page No..25....
ARCWDING
KAM:Arc welding píactise
Tools and equipment required- lding sAn weding
doals, lscodo, glasses aleves ete
Procedure:
4OSwitb onthe welding sot.
e Hald the eloctycde im eletedo halede.
3) Touh e elocted to the weldina table
)Rive a gap taual to diaeter electede
5) Centinue tha piocASS,
KSafety presautions tor anc wedingi
4) Welding shap shald be black soleued
2 Wseapsen, glves and glesses.
B)In oparo wockshap whie wdding poriable scun shauld
Do nat weld n wet flsot
K Theorgi
Electrode Diameler Cyouge) wnnt Canpcre )
3,15 mm CMSJ Std wire 46 A for 6 mm
4mr gauge 140-90OA os utto S0 mm.
Teacher's Signature :
JOB 1
weleling
Clecdoe
Raralba) ineo
weldirg
aen ds
Expt. No. Page No.
JOB 1
Desciption Shalad bunding praclice by are wedding.
Maleriolsi -Jb pere c mild steal (i0ox3IXS)mm
- Wlding elecede (3.15mm)
shalk gaste.
EEayigeotii Elechis ane welding set, elding cakles.
Qsgaus, electioce halder, eantt wire, eanhing amp ight
dupe, hend ae,dacs ehield, deater apren, wdding
dale, abde plug welding halet
Toolsi- hieping hammer, wire bush ,hack saus bimeh vic,
y saun,sledae aend all plan hammer, hong
an meosunine srale, sioer.
Operaing/woking Method:
anking: Firstly ennk upen Ms glat ausing sbey
ocasding to gi ven dimensies,
Nas sud st by ixing the lat n bemet vice and
tting
cutting withcutting mahine
Teacher's Signature :
No.
Expt. Page No. .i...
SeitingiNaw placa job upon the onil qügqed with bng
sand beot widb_pios hanmes bath sdes St
becenes ever
Jacking: ploce jsb ugoo table and give tasmall sike
with elechode ss hat jt fces dempo nanty wih tase
Welding'
L Eirat idontiy motal to be wwelded
Ngw ecide which dyp al technigue we have to s
BCson both sides a uoxk piero and pieane edge
5) Ater ding des 9-4 paralle ines jb thickness
atleot Gne dnch ipa sb Nate hat yu have to makke
nilom stalghd beads upen these ines,
6)Solet sutasle eletrede.
Place the piecos upen weding tae.
)Senneci welding tado citt eanhing lamp.
)ennet eonthing clamp with dlechodo weling sd
0)Cencs electcodo halder with cable sand sable wit wdding
st acsording to cunsnt vequiremnt
4)| Ngw connsct welding tot 2-phase
healdng set Js made.
se) Make he edee ode hcald inelectede halder
Teacher's Signature:
Date C9-01-2014
Practical Record
Page No.
Ex No.
(Adid cuant and valtge accoirn do requiremsnt.
eike theae at cued ostion and tack he iob
5e psper n wddingad nasded Spid oo manked lnes.
Jhe
slag cheping tammer and conthe sunbca with wiKe
Ns pan thy iaind foa xellasin shess,
Finsl inspt the jant.
Teacher's Signature
JOB 2
>Aim- Preparatio of (np joind by ac weddina
Gmn
ds
Practical Record Date .G0
Expt. No. Page No,. 29
JOB 2
Description:Pcepaneten Da jord by one wddirg
Mateial:- Jeb pieca a mild sesd CA00x34X 6 mme piecs
- Wclding elsctrede (3,15 mm)
- Shalk poste
Equipmerdi Electis ac wdding satt, goce sheld, welding
cabde, eather apsen, elecedo hlki, eab wire, cade
plug eathirg clamp light dye, GCP cutei, glowes,
welding halnat goggles.
k Teals: hieping hammer, wire brush,hacksaus, bomh vice tyy
saua sloda nd ball paen hamer, tengs, ani9
rnensunirna scale.
Ogetotioo/woiking Method?
Markingi Mank apon MS lat sing skex.
adting d by Hing he lat n bemch vice,sing cuting.
machine.
Seing: Place jcb upen gygpod wjdb torg and boal
Teacher's Signature
:
Practical Record Date 29.-01-2019
Expt. No. Page No,30
wth bal peoo hamner ron boh Sides O t kocones
FNackingflace jab dpon tade amdgve srnall stik elected
Welding
Rst cderd he matal Jo be weldod
elDocide the techmique to beused
bo
E slson batb sds uwotk piero and prpau edges.
Slbt suldo elorhede
Place pieces upan uotking dable
Sonnect eantng clamp citb welding set
3cennset eeode haldor uih cable c)t welding sotaccozdirg
Co Hald elactedo dn elerhode halder
3) Adjat cuord and vbag do sqired valu
eNow dack bsth pleces dipon each ather by heding wit teng.
(3) qive prsper
maked ines
Etellenuise
idh chepin hammer and clea ta, guace
wire usb
5)| Finaly epeci thejoint.
Teacher's Signature
