CO2 Welding

CO2 Welding
Introduction
CO2 welding is a welding procedure that utilizations carbon dioxide to shield the weld pool from oxidization amid the welding procedure. CO2 is not by any means the only gas utilized; it should be heavier than air to work. The weld pool is, a pool of weld or fluid/liquid metal that sets as one when completed the process of welding, it is as a rule between two things to intertwine the pieces. CO2 welding utilizes a long loop of filler wire that is sustained in through the handheld light, this filler wire dissolves as it finishes the electrical circuit by method for an electric curve which achieves temperature of around 3100 degrees Celsius, and obviously this melts the metal.

General Information
Course Industry:
CO2 Welding
Course duration:
240 credit hours (45 days)
Instructor:
Mr. Asif Jah, Mr. Rajab Ali
Prerequisites:
Middle or Matriculate
Course availability:
Available at Rawalpindi, Lahore and Karachi campuses
Course Fee:
40,000 PKR ($800)

Desire Learning Objective

This course will help you to:

  •      Weld securely and maintain a strategic distance from practices that could represent a       threat to others.
  •      Set up and work Co2 Gas Metal Arc Welding Equipment.
  •      Identify the different sorts of welding weapons utilized as a part of Co2 Gas Metal
  •      Curve Welding.
  •      Identify and state employments of various sorts of inactive gasses.
  •      Identify sorts of welding wire and different distances across.
  •      Understand and create essential procedures utilized with forehand and strike                      welding.
  •      Identify significant sorts of ferrous and non-ferrous metals.
  •      Understand the fundamental standards of voltage and present as it relates to                      consumable wire anodes.
  •      Understand and exhibit the different circular segment modes for the
          different welding positions.
  •      Understand and select legitimate filler metals.
  •      Understand right welding methodology, metal prep, current, extremity, attaching,                position and terminal methods.
  •      Understand and get ready inactive gasses for ferrous/non-ferrous metals.
  •      Understand, select and get ready terminals for welding.
  •      Understand and recognize the issues of welding ferrous and non-ferrous metals.
  •      Demonstrate individual wellbeing, great work propensities and occupation security.
  •      Set up and investigate Co2 Gas Metal Arc Welding gear.
  •      Understand consistent voltage, steady potential welding power units and their                    polarities as connected to Co2 Gas Metal Arc Welding.
  •      Understand the set up of stream meters and controllers.
  •      Set up and investigate wire feeders utilized as a part of Co2 Gas Metal Arc Welding.
  •      Understand and set up the welding firearm and link gathering, air/water associations             and segment parts.
  •      Understand and set up suitable gear to weld ferrous and non-ferrous metals.
  •      Understand and set up weld frameworks for plate, sheet, tubing and pipe.
  •      Set up and work plasma cutting lights.
  •      Understand and perform metal shapes conspicuous evidence to industry standards.
  •      Weld on ferrous and non-ferrous material in various positions using major joint                     blueprints.      

 

Instructional Techniques

We impart knowledge and Practical Training in following way:

Ethics, discipline, motivation, health and safety training:   Half an hour daily             (10%) 

Theoretical knowledge:                                                                        One (01) hour daily             (25%)

Hands on Training:                                                                                     Six (06) hour daily              (65%)

 

COURSE CONTENTS:

Co2 Gas Metal Arc Welding Equipment, Setup, and Operation

  •          Metal transfer
  •          Melting and deposit rate
  •          Power supply
  •          Weld pool control
  •          Equipment
  •          Spot welding
  •          Practices of joint - flat, horizontal, vertical, overhead
  •          Test plates

MIG Welding - Part I

  •          Setup
  •          Practices
  •          Flat position 1G and 1F
  •          MIG Welding - Part II
  •          Vertical up 3G and 3F
  •          Vertical down 3G and 3F
  •          Horizontal 2G and 2F
  •          Overhead 4G and 4F
  •          Pulsed 1G f. Axial spray

MIG Welding - Part III

  •          Principles of operation - flux core welding
  •          Equipment
  •          Electrodes
  •          Flux

MIG Welding - Part IV

  •          Sub arc
  •          Weld travel
  •          Electrode feed
  •          Contact tip

MIG Welding - Part V

  •          Electrodes
  •          Flux
  •          Advantages of SAW - Submerged Arc Welding
  •          Disadvantages of SAW - Submerged Arc Welding

MIG Welding - Part VI

  •          Arc starting
  •          Welding backing
  •          B. Plasma Cutting and Usage

o    Plasma

o    Arc plasma

o    Plasma torch

o    Power and gas cables

o    Power requirements

o    Heat input

o    Distortion

Applications

  •          C. Welding Codes, Standards, and Certification
  •          Codes
  •          Standards
  •          Procedures
  •          Specifications
  •          Professional quality

o    Welder qualification

o    Welder certification

o    General information D. Welding Joint Design

  •          Welding Costs, and Welding Symbols - Part I

o    Welding joint design

o    Welding costs

o    Welding metal costs

o    Welding symbols

  •          Welding Costs, and Welding Symbols - Part II

o    Types of welds

o    Location of welds

o    Fillet welds

o    Plug welds