WELDER FULL DETAILS

 •WELDER DEFINITION?

•Welding is the process by which two pieces of metal can be joined together.

•The process of welding doesn't merely bond the two pieces together as in brazing and soldering, but, through the use of extreme heat and sometimes the addition of other metals or gases,causes the metallic structures of the two pieces to join together and become one.

• There are a number of different welding methods, including spot welding, metal inert gas (MIG), and tungsten inert gas, which are forms of gas metal arc welding, arc welding, and gas welding, to name a few.

•Welding can even be done underwater.

•DURATION?

1 years ( 2 semester’s )

•ELIGIBILITY 

8th class OR 10TH CLASS  ( maximum 50% ) ( points 5.0

•PRIVATE ITI & GOVT ITI?

1.GOVT ITI

2.PRIVATE ITI

•FEE?

1.GOVT ITI ( 6000 TO 8000 )

2.PRIVATE ITI ( 35000 TO 40000 )

•WHICH CERTIFICATE (NCVT OR SCVT )?

1.NCVT

2.SCVT

•APPRENTICESHIP & OPTIONS?

•INDIAN RAILWAYS

•DEFENCE ( NAVY ARMY AIRFORCE )

•DRDO

•BHEL, NTPC,LOCL,HPCL

•AUTOMIC RESERCH CENTERS

•OFB

•NFC

•IOCL

•NPCL

•Etc….

•WHAT YOU WILL LERN ? 1ST  Semester

After successful completion of this trade trainee shall be able to perform the following skills with proper sequence.

1 welding of M.S. sheet and M.S. pipe by Gas welding process.

2 Welding of M.S. plate in all position by SMAW process.

3 Straight, bevel & circular cutting on MS. plate by Oxyacetylenecutting process.

4 Repair & Maintenance works

5 GMAW welding on M.S sheet & M.S plate.

6 Operating skills of spot welding machine, PUG cutting machine,

7 Welding C.I using SMAW process.

•WHAT YOU WILL LERN ? 2ND Semester

• Test welded joints by different methods of testing. [Different methods of testing Dye penetration test, Magnetic particle test, Nick break test, Free bend test, Fillet fracture test].

• Set GMAW machine and perform welding in different types of joints on MS sheet/ plate by GMAW in various positions by dip mode of metal transfer. [Different types of joints Fillet (T-joint, lap, Corner), Butt (Square & V); various positions - IF, 2F, 3F, 4F, 1G, 2G, 3G].

• Set the GTAW machine and perform welding by GTAW in different types of joints on different metals in different position and check correctness of the weld [Different types of joints- Fillet (T-joint, lap, Corner), Butt (Square & V); different metals- Aluminium, Stainless Steel; different position- 1F & 1G]. 

• Perform Aluminum & MS pipe joint by GTAW in flat position.

• Set the Plasma Arc cutting machine and cut ferrous & non-ferrousmetals.

• Set the resistance spot welding machine and join MS & SS sheet.

• Perform joining of different similar and dissimilar metals bybrazing operation as per standard procedure [Different similar anddissimilar metals- Copper, MS, SS].

• Repair Cast Iron machine parts by selecting appropriate weldingprocess [Appropriate welding process- OAW, SMAW].

• Hard facing of alloy steel components/ MS rod by using hardfacing electrode

•FURTHER LEARNING PATHWAYS?

•Apprentice training in designated trade

•Craft Instructor certificate course

•PRIVATE EMPLOYMENT OPTIONS?

On successful completion of this trade, the candidates shall gain to be fully employed in the following industries:

1 Structural fabrication like bridges, Roof structures, Building & construction.

2 Automobile and allied industries

3 Site construction activities for power stations, process industries and mining.

4 Service industries like road transportation and railways.

5 Ship building and repair

6 Infrastructure and defense organizations

7 In public sector industries like BHEL, NTPC, etc.

8 Petrochemical industries like ONGC, LOCL, and HPCL etc.

•GOVT EMPLOYMENT OPTIONS?

•All state Boards and departments

•Govt. Industries

•INDIAN RAILWAYS,

•DEFENCE ( NAVY ARMY AIRFORCE )

•BHEL, NTPC,LOCL,HPCL

•DRDO

•AUTOMIC RESERCH CENTERS

•OFC

•NFC

•IOCL

•NPCL, Etc….

•SELF EMPLOYMENT OPTIONS?

•Setup own fabrication workshop

•Steel furniture workshop



THANK YOU FOR VISITING  

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  6. Electric resistance welding
    The world owes the invention of electric resistance and spot welding to Englishman Elihu Thomson. This engineer has several patents in the field of spot welding to his name.

    Electric resistance welding consists in assembling by autogenous fusion the parts to be welded under the pressure of two metal parts. Who says welding says heat, with resistance welding the heat necessary for welding is provided by the Joule effect (which is the thermal manifestation of electrical resistance, this heat occurs when an electric current passes through any material conductor) of a current of high intensity and low voltage, passing through the parts to be assembled. Indeed, it takes a lot of amps and little voltage. The application of a forging force makes it possible to ensure the metallic interpenetration.


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