ITI IN Welder (1 Year)

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ITI IN Welder (1 Year)

ITI Welder (1 Year) Syllabus

1. Introduction to Welding

  • Definition and importance of welding in industries
  • Different types of welding processes (Arc, Gas, MIG, TIG, etc.)
  • Classification of welding joints and positions
  • Comparison with other joining methods (e.g., riveting, bolting)
  • Career opportunities and scope in welding

2. Arc Welding (SMAW – Shielded Metal Arc Welding)

  • Basic principle of arc welding and arc generation
  • Types of welding machines (AC, DC, inverter-based)
  • Types and classifications of electrodes (based on IS codes)
  • Factors affecting arc stability and weld bead formation
  • Common arc welding defects and how to prevent them

3. Gas Welding (Oxy-Acetylene Welding)

  • Principle and working of oxy-acetylene welding
  • Components of gas welding setup (regulators, torch, hoses, etc.)
  • Types of flames (neutral, carburizing, oxidizing) and their applications
  • Welding techniques for different joint types
  • Precautions and safety in handling gas cylinders and flame

4. TIG & MIG Welding (GTAW & GMAW)

  • Difference between TIG (GTAW) and MIG (GMAW) welding
  • Equipment and consumables used (electrodes, shielding gas, wire feeder)
  • Selection of current, voltage, and gas based on material
  • Advantages of TIG/MIG over traditional methods
  • Common problems and troubleshooting in TIG/MIG welding

5. Welding Symbols and Engineering Drawing

  • Basic elements of engineering drawing
  • Symbols used in welding as per BIS standards
  • Types of joints (butt, lap, corner, T, edge) and their representations
  • Understanding weld size, length, and finish symbols
  • Reading and interpreting fabrication drawings and blueprints

6. Welding of Different Metals

  • Characteristics of ferrous metals (MS, SS, Cast Iron)
  • Characteristics of non-ferrous metals (Aluminum, Copper, Brass)
  • Welding techniques for each metal type
  • Effects of welding heat on metal structure
  • Importance of preheating and post-weld heat treatment

7. Cutting Processes

  • Principle of oxy-fuel gas cutting
  • Plasma cutting – introduction and applications
  • Arc gouging and its industrial uses
  • Differences between mechanical and thermal cutting
  • Safety precautions during gas and plasma cutting

8. Weld Defects and Inspection

  • Classification of weld defects (internal and external)
  • Causes of common defects (porosity, cracks, undercut, slag inclusion)
  • Visual inspection and dimensional checks
  • Basic Non-Destructive Testing (NDT) methods – dye penetrant, ultrasonic
  • Quality standards and acceptance criteria

9. Industrial Safety and Environmental Awareness

  • Use and maintenance of Personal Protective Equipment (PPE)
  • Safety signs and signals used in welding shops
  • Fire safety and first aid measures in welding
  • Safe handling of gas cylinders and electrical equipment
  • Environmental effects of welding fumes and waste disposal methods

 

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