Electric Arc Welding and Manual Arc Welding (6G)

A. BASIC ELECTRIC ARC WELDING & ADVANCED WELDING (UP TO 6G)

I. Theory – Basic Welding

• Basic welding positions: 1F – 2F – 3F – 4F – 1G – 2G – 3G

• Welding safety

• Arc welding principles

• Welding methods

• Welding current setup

• Welding equipment and accessories

• Welding materials

• Types of fillet weld joints

• Welding positions

• Welding defects

• Theoretical assessment

II. Practical Training – Basic Welding

• Practical welding exercises in positions:
  1F – 2F – 3F – 4F – 1G – 2G – 3G

B. ADVANCED WELDING (PLATE & PIPE) – 4G / 5G / 6G

I. Theory – Advanced Welding

• Metallurgical structure of welds

• Weld symbols, welding triangles, and weld leg dimensions

• Welding distortion

• Types of butt weld joints

• 4G welding technique (overhead welding)

• 5G welding techniques and skills

• Welding current setup for different types of electrodes

• Welding materials:

  • Base materials

  • Filler materials

  • Electrode characteristics and properties

• 6G welding technique (pipe welding at 45° position)

II. Practical Training – Advanced Welding

• Practical welding exercises in positions:
  4G – 5G – 6G

PORTABLE AUTOMATIC CUTTING MACHINE (TRACK CUTTER / “TURTLE CUTTER”)

Cutting Parameters

1. Oxygen cutting flow

2. Fuel gas mixture flow

3. Preheating flame

4. Cutting groove

5. Workpiece preparation

Theory

• Operation of manual cutting torches and portable automatic cutting machines

• Adjustment of cutting gas pressure suitable for groove type and material thickness

• Specifications of cutting torches and nozzles (tips)

• Safety procedures for using cutting equipment

• Proper storage and maintenance of oxygen & fuel gas (acetylene) cutting equipment