Report MIG Welding

7/24/2019 Report MIG Welding

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Objective

To gain experience and knowledge of the use

of MIG arc-welding and materials safe To discipline students using workshop

should

To provide exposure to the students about

securit! is important

"nsure that the students that the! know howto use TIG-machine and hand tools in the right

wa!

Improve the students during their patience

do workpiece

#ble to help students in the job environment

re$uires skill


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Introduction

Metal inert gas welding, or MIG welding, is the most widely

used of the arc welding processes. It is suitable foreverything from hobbies and small fabrications or repairs,through to large structures, shipbuilding and roboticwelding. MIG can be used on a broad range of materialsand thicknesses, and the latest SuperPulse technologyenables MIG to give a finish that is similar to that obtainedwith TIG tungsten inert gas! welding, yet with the speed

for which MIG is renowned.The concept underlying MIG welding is simple, with thearc being struck between the tip of the reel"fed wire as itemerges from the torch, and the workpiece. # shieldinggas prevents o$idation forming, or the use of some flu$"cored wires avoids the need for a shielding gas. %ith mostMIG welding sets, the user sets the wire feed speed,

which determines the current& then the user sets thevoltage to suit that current.

'ase of use is clearly a ma(or benefit of MIG in manyapplications, but speed is also important. It is far )uicker tolay down weld metal with MIG than TIG, MM# manualmetal arc " or *stick* welding! or gas welding.


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%#&"T' ()*I+G ,O*

%ome of the measures that need to .e done while

in welding workshop area

,ell-dressed/ neat and safe

,ear goggles when welding Goggles protect the

e!es when students operate TIG welding

(o not look at welding with the naked e!e as

strong arc light can cause e!e pain/ glare and

0uic!

1ut the lid onto the shirt before use TIG welding

,hen wearing an apron workshop alwa!s tie

back not in front

*emove watches/ rings and 2racelets as the!

can endanger !ourself while using weldingconditions and cause in0ur!

Turn o3 welding 2efore cleaning

#lwa!s ensure TIG welding and hand tools are

clean

Make sure the door is not greas! so as to avoid

injuries from occurring2efore getting into the workshop the students

must clad mechanical workshop


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%tudents who use TIG welding or e$uipment

without the permission of the lecturer will be

disciplinar! action

In the event of an! injur! to the student/ pleasereport it immediatel! to a lecturer in action further

apparatus &unction

Machine MIG

,elding machine uses

an alternating current

entr! 4#)5 and produces

direct current 4(65

MIG Guns

1urpose is to guide the

welding wire from thewire feeder/ through the

gun cable and up to the

contact tip


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Prest"+"ite MIG %elding Gas

-egulators

-&low meter gas measure

serves as a gauge for the

working pressure re$uired

-There are readings on theoutside while the inside of

the glass tube there is a ball

7oat that will be used to

show the pressure level of

work re$uired

-Meter readings will be

taken at the center of theball at the top of the ball

,ire brush

used as a tool for

cleaning, polishing

6ase ,ire &eed

sed for high production

welding and have the

fastest of the wire feedspeeds.


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%hield

1rotect the e!e from

the light when

welding

*eferences

Internet05

http899wwwmachinebuildingnet9ta9t:0;;htm

MIG ,elding


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3) How to Weld" book by Bridigum

6O+6?)%IO+

&rom the results of this assignment I havelearned man! things during this protect/

especiall! in dealing with MIG machine This is

because there are several steps that must be

followed before conducting proper welding

MIG is &or example8 adjust the gas pressure

which is suitable for welding workpiece I alsogain experience and knowledge of the use of

MIG arc-welding and materials safe #t last

also know how to use MIG-machine and hand

tools in the right wa!


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TitleMIG ,elding4MetalInert Gas5?ecture8 @#&IA#+ 2I+ @B O%+I+


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0 6lear the part of the metal sheet before start welding


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D #fter weld the nails /then butt weld the metal sheet at the side between two

metal

E #fter butt joints/clear the slag to make sure the welding is done


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F )se the -cramp to let the metal sheet to became ? shape and weld the nails

at both side of the metal sheet

H #fter weld the nails at the both side can start the corner joint

0:#fter welding the corner joint o3 the power and the gas / let the machine at

the safet! condition

Report MIG Welding

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