Welding (WLD‑T3)

📘 Theoretical Topics:

1. Introduction to Welding

   • Definition, importance, and applications

   • Career scope of welders (local & overseas)

2. Types of Welding Processes

   • Gas Welding (Oxy-Acetylene)

   • Arc Welding (Shielded Metal Arc Welding - SMAW)

   • Basic introduction to MIG (GMAW), TIG (GTAW), FCAW, etc.

3. Welding Equipment and Tools

   • Welding machines

   • Electrodes, regulators, torches, hoses, clamps

4. Metallurgy Basics

   • Types of metals (ferrous & non-ferrous)

   • Metal identification and properties

5. Welding Joints and Positions

   • Butt joint, Lap joint, Corner, Tee, and Edge joints

   • Welding positions: Flat, Horizontal, Vertical, Overhead

6. Safety in Welding

   • PPE (gloves, helmet, apron, etc.)

   • Fire safety and first aid

   • Electrical safety

7. Welding Defects and Quality Inspection

   • Common defects: porosity, cracks, undercut, slag inclusion

   • Visual inspection and basic NDT methods

🛠️ Practical Training Topics:

1. Basic Gas Welding Practice

   • Setting up gas cylinders

   • Flame adjustment

   • Performing bead runs, lap joints, and fillet welds

2. Basic Arc Welding Practice

   • Electrode selection and polarity

   • Straight & weave bead techniques

   • Welding mild steel in various positions

3. Basic Fabrication Skills

   • Measuring, marking, cutting (hacksaw/gas cutting)

   • Grinding, filing, drilling

4. Project Work

   • Fabricating simple metal structures (grills, frames, etc.)

   • Group assignments and shop work

5. Finishing & Inspection

   • Cleaning welds

   • Basic quality checks