Welding notes for GATE mechanical engineering

gate short notes

1. WELDING

Fusion

eee

Solid ee
Rage

ber piosive

bultrasonic

PFricken
bForge

| bDiffjuston

Pa

+ Axe

welding,

+ Conde E) —
+ DE See welaing,
» Mig Rotary

o Row

>
t ye

+ DCEN
+ high thickness high
TAR meters ane

wwe dd

+ Depth ol generation ty
mba
+ weld deporte Vale Ja leg
+ Depin $ Penetration

hs

EN ne

Ava of total beat da gtrasted on Ir
ds à o on ir
Prode @) — qua af total bes generated

Sohle

2) Revue far
ol
oe

speek

Less anickiness 6 low A
wmaknials voclded,

+ Depth 4 ganen Gy
wa

O wc lomo

O |

2. Arc ‘low

Due to dellection of electromagnet Held Slax
ine, fowonds wp elecixic dm wot alte
dutde Awards top ak grue amd ss
wip . Tu conser wed paves ad boto ends

= Aro bou caw pe ene ba ovino, medal
blocks oF cath amd e em

- b ar
yy Aux Coca ieee change
= by reducing a ahr 2 enr rende)
+ Type ej welding machine

Le constomt Current Auge 2. Consent veltas hype
Laxoop] Einen]
ye arb

a+ bh,

+ ramen jaunes m) “| + Automohe Verlag me

vo ke Fe
pr ve u wm
ue Tee

Ib qu v &-v)

> tor war lower : yey, = at ba

ve = circuit voltage (43
- Shorr Creat currents (A)
i. om Length (mm) ar according te Ouesion
> dor wer down
ah co x a? ex

av at
S for Sinn Mim oune
hen Ve Ya

Gare Vie oe VS
Les
ES |

3. Duty que = _ Are on time _
Am onaime + idle Ame

DI”= (ome = DI = aile

> gwiclded que Arc weld Raro
Sntekaed > .

D TIG > Tungsten Ink goa , Gm ERS Am welding (mi
= DEEN (Streighr Pote) cues for all exceed Als
— DEEP (vum Polanity) Known os Cathodic Aeoming,

Ac source do wed foe a À Ad

Non- consmmable Hongo | lee

Leos mo files wed etd geet as 3]

b> sem > (im needed Lata,

- HG wed to weld AL, B tas alloys Um Aenoserce |

N o Industrien

ls ES sana celecired & ochà gel

- ironia alloyed with “unqtren electrode to
Thorium near Vs me

a) MG = Metal int 7 Gas meted ant welding Gmaw

- Dropler Hranıler =$ low current — on gets tee
sr enger — ar high Current —> gra

sa

+

inch
ed

= wire in form e consumar electrode te und

nat opr ‘admosphine da

previdad Cue, ar, cor]
cused to weld AR, Mg, Cu Bik allo tn

audomddle name id
wie 3 bane er Sly code
D Mamma Axe ass Raw)
— max hp

OA
= Mon -contumable omagten elettvode
= eramic nognle

- ms depin 4 Penthstion £ HAR da high
— Used Sow die Han
ae as Ang Hlanium Imickel, cobalt & Sisimtes
ARE, fel cairo tubing bina, ete

4. Suomergad Are wedding,

2 nick 16250 mA

+ Tz a60- 2000 À

+ deposition vale = 20 gl he
+ Ds Smlmin

+ Consumable electrode

+ Sold granulon Nur co Abies

+ fre D undon Klux

+ tata Weak lect 8 max, Aseo on wolf

+ DERE ut high current is Used
- used (or welds

Min cine objects wm Shih baii
= friction 4 AA verd amd domektc LEG. Ÿ

Heat Required foe moss > MB = MCAT mL

Me Tun Ta

Fa

melding +h
Tes Feed emp“
Le ken Mech
c= Stake met
Hea Supplied =S NS = Na SD

nz Heat tromafen opor
Y), mir een ie ur
Ony-Preetinlene Goa eng

Gm On — 20 + Ha + ay,

Alo +m+r 2 >

nt BO 202 + to Han,
Cat, +5
a 730% ——> 20, +H0 + Ah

Veede Volume ef Ga — EV of Oy

va. q Op à daken ,
& dan Irom en al oma 1-6 vol.

5. + 0 cylinder ds black un colour. ek:

3 Neutral (lame (using, Sound)
una (one — 3200 €
MS, CE, low conbon Arecd A medium canon veg

e Ox = À

Sm
Gere (Reaning, Seurd )

an
> Conbunizina Game (ne Sound )
sinner cone — 240€
2 Nickel alloys „lg ceabon Arzel

o or te 015
Clan,

huit welding

RO ain > Ve + AAO, + An

Feu: AR
+ used M repair Works mática y a
* ining, A Mah Animes globes

e Toining Broken casting,

tome leger sols
— vod for joining a 3 food se
2 de Are
5 Repade works cuttin tools A die
hoe mene contamable umayiten lechvod Je Used
Ha — H4+H can

Bry by mas

tora — Va Fan
— Hy ados Mein agent Tandang fur” 2 aies]

6. Rerisionte SS Leoppor electeedss one wed]
©) Ager wetting,

+ Animes V2 mm
T 3 toos - Ço,00e A
b= 0.0) 0:5 see
MR= meata mL » he He
WS = eb mn ns

© Usd [Pe dep jplninq qf Abed mateiah In aulamebile bedies
om rehitgunatoy bobs,
Y Sean werd
© vollen or Loue as wlachrodeı
PE IN
+ used for Lepe] joints = fabrication ASA das,
> Gproline pes |
amule da exar Pipe

9 Pracchon weldin
+ rojukons ana meds by Emibering Feinnigne
+ weed omy, pr rones Production
brication A wire mesh,
win e treen dad Abre & yuk on Che eb mahniad
3) Qlam Bue warding il
+ Le €0,0008 ko 40,0008
one Led 2 one movable tope electrede ans used

Heat & oenvoted bez À cleewric Resistance
word for fomous muta Aa dana, €

: Anne
D Sash welding |
+ one Kea Bone movable e
eS al ATOS
+ MOL genmoted bey, ane wee Fe
ca ward dor mon Quo mea Ske Lou
lee dan, seh din D ie abs

7. Anika Mol da quamehed Guat ke eiseheie Gere.
den on Heat 8 gentredtd due do wertete a slag
qu timos, object In ahh ia

BE de piel
> Betting, cenit Aion ds,

Sells Hore welding
1 Explosive welding
+ dard pete —> [xed one
+ Ligar pated —> movable
+ ov velocity exglasue matvdas D goed above Alim pte
+ Thaw win be no heat ole ded pr.
Used for - high Sirengkn win Low ATEN wekericl
- Cladding of ‘objects do INCREAS corromuenen cane
a) Ulirasonic weldin
+ miene € A m heile
B= som do «uz
Head Gs qnugbed Aw te vubbing action Tan son e me “al

+ Acer da goed

à ul > Giorication A dos 4 kiodu a clear Indusiie
> fickañon À Fe
> Sl se à similar male
3) Estetion weldle
N > Av00- 6800 ag
PS man N
„one à Ged oly Roman de rotated
+ Mead à que due do Arion [upto ceceyialication ten]
+ word for joining > Axe 5 Hub
> fps £ valves
> DEN SF 2 Monk

4) Forge weld
+ Cxtactly, Sion do Valli forging’ operen.
E man harm ned

fe opt Segarra pink.
Wied Jor Village level atenas application on

8. $) Diffusion welding
Born hrek 3 Qro Aimmublken ously aptes oF Sora eke
Groin dian will deike gute.
oe ae AS ma i 5%
Km th (ormakten J innert ques ane prov
2 To wiwimise od | a pena es ee

+ Used for > Gipeieation ef comporte Somminabes |
> as 4 au amd Dim wedereds
hike mi do conomle

Saïa/atauià sede welding (qe)
Braging Ccagttlons) Solieniaafesrileay) | Gene veias,
suave peus | + re nteusre |. see
+ Glen + Cu ver «pias Lead +t Vote
Cas) (selasa) res
“(ur > Borax + Aus 200, 4 MCE

(eu x Tin)
+ used {or tan gro] 2 Uned in PCB comporemt| + Joining cut

quid Arc Jalosication trol Hb to sane

LASER Beam welled (Leu
uarg fr lesen beam de found urn
mage où Samy.

à CRE uns à ope

2 ne fur me Ber + nico weld ac

Electron Beam wetding (Eb)
+ Electron beam ds peu

Vaccum necmor + mulbilayend Swatedat with
+ welding dsrmilar metals, ay: Sages us
ga le area À, ET cedo
gts Jane equipmenk . uote data week y
more foneteton ments ee 4
te de eur Ca, ME, ss. Ti
IAN [era] ais
mr y
t Kk + y
[xs y
pre v
Tae tl 0 |