Vskills has developed a new strategic framework for Skill Development for early school leavers and existing workers, especially in the unorganized sector to improve their employability called Trade Employable Skills (TES).

Trade Employable Skills does effective assessment and certification of candidates in different trade disciplines like Electrical, Electronics, Agriculture, Chemical, Automobile, IT, etc to make them job ready.

Why should one take this certification?

To demonstrate clear understanding and practical aspects and to get a visible recognition for this knowledge.

Table of Content

https://www.vskills.in/certification/Vskills-Certified-MAG-or-CO2-Welding-Operator-Table-of-Content

Practice Test

https://www.vskills.in/test/

Companies that hire MAG / CO2 Welding Operator

All small and medium companies need certified employees who have the requisite skills. There are more jobs opening up in the economy on a regular basis with the fast growth of the country.

Apply for Certification

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TABLE OF CONTENT

CO2 welding equipment and process

Difference between shielded mental arc welding and CO2 welding
The principal of CO2 welding

CO2 welding equipment and accessories

Curve A
Touch assembly
Curve B
Control system
Wire reel
Wire feel drive motor

Setting up of GMA welding machine

Direct current electrode positive(DCEP)
Direct current electrode negative (DCEN) or DCSP
Wire feeder and drive unit
GAM/CO2 welding torch-welding gun
Smoke extracting torch system
Shutting down the plant

Advantages ,disadvantages of CO2 welding over SMAW process and application of CO2 welding

Advantages
Disadvantages
Application of Co2 welding process

Base metal preparation and types of metal transfer in GMAW/ Co2

Base metal preparation
Globular transfer
Short circuit transfer (DIP transfer)
Spray transfer
Electrode
Types of metal transfer
Welding current
Arc travel speed
Stick out
Arc voltage
Welding procedure
Electrode position
Welding position
Safety in GMA welding / Co2 welding

Straight line beading on MS plate in flat position

Preparing the metal surface
Welding method
Welding of different joints in the flat position by GMAW / Co2 welding
Fillet weld on a lap joint
Fillet welt on tee joint – flat position
Groove weld on a butt joint – flat position

Welding Wires used for Co2 welding in application

Chemical properties
Chemical composition, Weight percent

Wire feed system – Difficulties

Drive rolls and wire guide tubes

Shielding gases for GMA welding

Argon Carbon dioxide
Argon – oxygen

Laying straight line beads and welding T fillet joint in horizontal position

Suggested gases and gas mixture for use in GMAW short circuiting transfer

Welding joints in vertical position

Groove weld but joint – vertical up – uphill motion

Burn – off characteristics of filler wire in Co2 welding

Principle of self regulating arc length in GMAW/Co2

Flux cored arc welding

Metal transfer in FCAW
Classification of flux cored wires

GMA narrow gap welding

Weld defects, causes and remedies in Co2 welding / GMAW

Troubleshooting Welding condition and defects

Certified MAG or CO2 Welding Operator

How It Works

Test Details

Benefits of Certification