Marine Welding Course

Lesson 1 • Marine Industry Welding Overview

Introduces the scope of welding in shipbuilding, offshore, and repair sectors. Connects industry context to the skills developed throughout the course.

Lesson 2 • Hazard Identification in Marine Environments

Covers physical, chemical, and environmental hazards unique to marine worksites. Builds awareness needed to apply protective measures in subsequent sections.

Lesson 3 • Personal Protective Equipment for Marine Welding

Details PPE selection, fit, and maintenance specific to marine welding tasks. Ensures students can choose and use correct protection before entering a worksite.

Lesson 4 • Regulatory Compliance and Safety Standards

Examines marine welding safety regulations, classification society requirements, and inspection protocols. Grounds students in compliance obligations relevant to all core chapters.

Lesson 1 • Stainless Steels and Nickel Alloys

Addresses austenitic, duplex, and super-duplex stainless steels used in marine piping and fittings. Highlights sensitisation risks and filler metal compatibility.

Lesson 2 • Aluminium Alloys in Marine Construction

Covers 5xxx and 6xxx series aluminium alloys used in superstructures and small craft hulls. Prepares students for aluminium-specific welding challenges addressed in core chapters.

Lesson 3 • Fundamentals of Metal Structure

Covers atomic bonding, grain structure, and phase diagrams relevant to weldable metals. Provides the metallurgical foundation required for material selection decisions.

Lesson 4 • Carbon and Low-Alloy Steels

Examines grades of structural steel used in hulls and decks, including weldability and preheat needs. Directly supports welding procedure selection in later chapters.

Lesson 1 • SMAW Technique and Bead Progression

Teaches stringer and weave bead techniques, travel speed, and electrode angle for structural joints. Builds muscle memory required for multi-pass weld sequences.

Lesson 2 • Defect Recognition and Corrective Action

Identifies porosity, undercut, incomplete fusion, and cracking in SMAW and FCAW welds. Students apply corrective parameter adjustments before advancing to GMAW and GTAW.

Lesson 3 • FCAW Technique for Marine Joints

Applies FCAW to fillet welds, groove welds, and T-joints common in ship structure. Emphasises productivity advantages and defect prevention in marine environments.

Lesson 4 • SMAW Equipment Setup and Electrode Selection

Covers power source types, polarity settings, and electrode classification for marine SMAW work. Correct setup is prerequisite to all SMAW welding practice sections.

Lesson 1 • GMAW on Steel and Stainless Steel

Applies GMAW techniques to structural steel and stainless piping joints in marine contexts. Reinforces material knowledge from Chapter 2 through process-specific parameter choices.

Lesson 2 • GTAW Fundamentals and Torch Setup

Introduces tungsten electrode types, shielding gas, and torch configuration for GTAW. Establishes precision arc control skills needed for thin-gauge and root pass work.

Lesson 3 • GMAW Process Principles and Setup

Covers transfer modes, shielding gas selection, and wire feed system setup for GMAW. Correct configuration is essential before applying GMAW to marine alloys.

Lesson 4 • GTAW Technique for Marine Applications

Applies GTAW to pipe root passes, aluminium sheet, and stainless fittings common in marine systems. Develops the dexterity and arc control required for precision marine welds.

Lesson 1 • Types of Weld Joints and Grooves

Covers butt, T, corner, lap, and edge joints along with groove geometry variations. Provides the vocabulary and geometry knowledge needed to interpret marine drawings.

Lesson 2 • Structural Drawing Interpretation Practice

Applies symbol reading and joint design knowledge to realistic marine structural drawings. Reinforces all section skills through integrated drawing exercises.

Lesson 3 • Distortion Control and Weld Sequencing

Addresses thermal distortion causes and mitigation through joint design and weld sequence planning. Prepares students to maintain dimensional accuracy in marine structural assemblies.

Lesson 4 • Joint Preparation Methods

Teaches grinding, gouging, and thermal cutting methods used to prepare joints to drawing specifications. Connects symbol interpretation to physical joint preparation tasks.

Lesson 1 • Heat Input Calculation and Control

Teaches heat input formula application and its effect on mechanical properties and distortion. Connects WPS parameter ranges to practical welding control on the job.

Lesson 2 • Welding Procedure Specification Structure

Explains essential and non-essential variables, ranges, and format of a WPS document. Provides the framework students use to write and evaluate procedures throughout the chapter.

Lesson 3 • Procedure Qualification Testing

Covers the Procedure Qualification Record process, test coupon preparation, and required mechanical tests. Students understand what validates a WPS before applying it on a marine project.

Lesson 4 • Post-Weld Heat Treatment Procedures

Covers PWHT purposes, temperature ranges, heating and cooling rates, and documentation for marine welds. Prepares students to specify and oversee PWHT on thick-section marine structures.

Lesson 1 • Radiographic Testing Fundamentals

Introduces X-ray and gamma-ray RT principles, film interpretation, and radiation safety for marine weld inspection. Builds volumetric defect detection knowledge applied in the next section.

Lesson 2 • Visual Inspection Techniques

Establishes systematic visual inspection methods, tools, and acceptance criteria for marine welds. Visual inspection is the first quality gate applied before any other NDT method.

Lesson 3 • Acceptance Criteria and Rejection Decisions

Applies classification society and applicable code acceptance criteria to NDT results for final accept-or-reject decisions. Integrates all NDT methods into a complete quality assurance workflow.

Lesson 4 • Liquid Penetrant and Magnetic Particle Testing

Covers PT and MT procedures, consumable selection, and interpretation of indications on marine welds. Addresses surface and near-surface defect detection for ferrous and non-ferrous materials.

Lesson 1 • High-Strength and Quenched-Tempered Steel Welding

Addresses welding of high-strength structural steels used in naval and offshore applications, including hydrogen control and PWHT. Builds on metallurgy and WPS chapters for advanced material handling.

Lesson 2 • Pipe and Pressure Vessel Welding

Covers pipe fit-up, root pass techniques, and all-position welding for marine piping systems. Integrates WPS knowledge, NDT requirements, and process skills from all previous chapters.

Lesson 3 • Weld Repair on In-Service Vessels

Covers hot work permits, cofferdam use, and repair welding procedures for vessels in active service. Applies safety, NDT, and WPS knowledge to the constraints of live-vessel repair environments.

Lesson 4 • Wet and Dry Hyperbaric Welding

Introduces wet welding and dry hyperbaric welding principles, equipment, and safety for underwater marine repair. Extends surface welding knowledge to the unique physics of underwater environments.