SHIELDED METAL ARC WELDING (SMAW)

ON MILD STEEL

GENERAL MODULE INTRODUCTION

1. General Introduction

Shielded Metal Arc Welding (SMAW), also known as manual metal arc welding, is a fusion welding process that uses an electric arc between a flux-coated consumable electrode and the workpiece to produce heat and join metals. The process is widely used for welding mild steel in workshops, construction, fabrication and maintenance activities.

This module provides learners with the knowledge, skills and practical competencies required to perform SMAW operations on mild steel safely and effectively.

2. Module Objectives

By the end of this module, learners should be able to:

• Explain the principles of Shielded Metal Arc Welding.
• Identify SMAW equipment, tools and materials.
• Apply welding safety rules and precautions.
• Prepare mild steel plates and welding joints.
• Select suitable electrodes and welding parameters.
• Perform SMAW operations on mild steel.
• Inspect welds and identify common welding defects.

3. Learning Outcomes

After completing this module, learners will demonstrate the ability to:

• Set up and operate SMAW equipment.
• Strike and maintain a stable welding arc.
• Deposit quality weld beads on mild steel.
• Perform different welding positions.
• Maintain quality and safety during welding operations.

4. Learning Activities

• Theoretical lessons and discussions.
• Demonstration of SMAW techniques.
• Practical welding exercises.
• Individual and group assignments.
• Weld inspection and assessment.

5. Safety Requirements

Learners must observe the following safety precautions:

• Wear a welding helmet with the correct filter shade.
• Use welding gloves and protective clothing.
• Wear safety boots.
• Ensure proper workshop ventilation.
• Keep flammable materials away from the welding area.
• Inspect welding cables and equipment before use.

WELCOME TO SMAW ON MILD STEEL

Learn the theory. Practise the skills. Produce quality welds.