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Metalworking Quality Control Course
More than 2 million students worldwide

Metalworking Quality Control Course

Master every layer of metalworking quality control, from hand measurement tools and NDT methods to statistical process control and supplier auditing. This course gives you the practical skills to catch defects early, reduce scrap, and keep production running to spec. Whether you work on the shop floor or manage a QC programme, you'll finish ready to deliver measurable results.

Dedika for businesses

What you will learn:

This course covers the full scope of metalworking quality control, starting with measurement systems, metrology, and GD&T, then moving into visual inspection, surface defect identification, and all major NDT methods including ultrasonic, magnetic particle, liquid penetrant, and radiographic testing. You will learn to build and interpret control charts, run process capability studies, and conduct root cause investigations using structured tools like FMEA and 5-Why analysis. Supplier qualification, incoming material inspection, and audit techniques are covered in depth. The course also addresses quality management systems, lean principles, and continuous improvement frameworks. By the end, you will have the knowledge to manage a complete QC programme in a metalworking environment.

How you study in practice Metalworking Quality Control Course

How you practise Metalworking Quality Control Course

For companies looking to train their teams

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Course content

8 Chapters • 41 LessonsDuration between 4 and 360 hours (you decide)

Chapter 1See details

Foundations of Metalworking Quality Control

  • Lesson 1 • Overview of Common Metalworking Processes

    Surveys casting, forging, machining, welding, and forming as QC inspection contexts. Provides process awareness needed to interpret defects in later chapters.

  • Lesson 2 • What Is Metalworking Quality Control

    Defines quality control and distinguishes it from quality assurance in metal fabrication. Anchors the chapter by framing QC as a systematic, measurable discipline.

  • Lesson 3 • Key Metal Properties and Their Relevance

    Covers mechanical, physical, and chemical properties that QC monitors. Connects material behaviour to inspection criteria used throughout the course.

  • Lesson 4 • The Quality Control Workflow

    Maps the end-to-end QC process from incoming material to final product release. Establishes the inspection checkpoints revisited in every subsequent chapter.

  • Lesson 5 • Regulatory and Standards Landscape

    Introduces international standards bodies and industry-specific quality frameworks. Students understand compliance obligations without referencing jurisdiction-specific codes.

Chapter 2See details

Measurement Systems and Metrology

  • Lesson 1 • Geometric Dimensioning and Tolerancing Basics

    Introduces GD&T symbols, datums, and tolerance zones as the language of engineering drawings. Enables students to interpret specifications before measuring parts.

  • Lesson 2 • Hand Measurement Tools

    Covers calipers, micrometers, height gauges, and dial indicators for shop-floor use. Students practise correct technique to minimise operator-induced error.

  • Lesson 3 • Fundamentals of Metrology

    Explains measurement units, traceability, and uncertainty concepts central to reliable QC data. Grounds all subsequent instrument use in scientific measurement principles.

  • Lesson 4 • Coordinate Measuring Machines

    Explains CMM types, probe systems, and measurement routines for complex geometries. Bridges manual measurement skills to automated dimensional verification.

  • Lesson 5 • Gauge Repeatability and Reproducibility

    Teaches Gauge R&R studies to quantify measurement system variation. Students determine whether a measurement system is capable before relying on its data.

Chapter 3See details

Visual and Surface Inspection Techniques

  • Lesson 1 • Weld Visual Inspection

    Applies visual inspection criteria specifically to weld beads, heat-affected zones, and joint geometry. Prepares students for the non-destructive testing chapter that follows.

  • Lesson 2 • Principles of Visual Inspection

    Establishes lighting, magnification, and ergonomic standards for reliable visual examination. Reduces subjectivity by applying structured inspection protocols.

  • Lesson 3 • Coating and Plating Inspection

    Addresses thickness measurement, adhesion testing, and visual evaluation of protective coatings. Ensures coating quality meets corrosion and wear protection specifications.

  • Lesson 4 • Common Surface Defects in Metal Parts

    Catalogues cracks, porosity, laps, seams, and surface inclusions with their root causes. Provides the defect vocabulary used in inspection reports and corrective actions.

  • Lesson 5 • Surface Roughness Measurement

    Covers Ra, Rz, and other roughness parameters measured by contact profilometers and optical methods. Links surface finish specifications to functional performance requirements.

Chapter 4See details

Non-Destructive Testing Methods

  • Lesson 1 • Liquid Penetrant Testing

    Covers penetrant application, dwell time, developer use, and indication interpretation for surface-open flaws. Students perform and document a complete PT procedure.

  • Lesson 2 • Ultrasonic Testing

    Teaches pulse-echo and through-transmission UT for volumetric flaw detection and thickness measurement. Students calibrate equipment and interpret A-scan displays.

  • Lesson 3 • Magnetic Particle Testing

    Explains magnetisation techniques, particle application, and indication evaluation for ferromagnetic parts. Builds on PT knowledge by extending detection to near-surface flaws.

  • Lesson 4 • Eddy Current Testing

    Covers eddy current principles for surface and near-surface flaw detection in conductive metals. Demonstrates probe selection and signal interpretation for common applications.

  • Lesson 5 • Radiographic Testing Fundamentals

    Introduces X-ray and gamma-ray imaging for internal defect detection in castings and welds. Emphasises radiation safety protocols alongside image interpretation skills.

  • Lesson 6 • Introduction to NDT Selection

    Frames NDT method selection based on flaw type, material, geometry, and cost. Prevents misapplication of techniques covered in subsequent sections.

Chapter 5See details

Statistical Process Control in Metalworking

  • Lesson 1 • Control Chart Construction and Use

    Teaches X-bar, R, and individuals charts for variable data from machining and forming processes. Students plot, interpret, and respond to out-of-control signals.

  • Lesson 2 • Attribute Control Charts

    Covers p, np, c, and u charts for defect and defective counts in high-volume metalworking. Extends SPC skills to inspection data that cannot be measured continuously.

  • Lesson 3 • Sampling Plans and Acceptance Sampling

    Introduces single, double, and sequential sampling plans for lot acceptance decisions. Connects sampling risk to AQL and LTPD concepts used in supplier and final inspection.

  • Lesson 4 • Statistical Foundations for QC

    Reviews descriptive statistics, normal distribution, and probability concepts essential for SPC. Ensures all students share the mathematical baseline needed for control charting.

  • Lesson 5 • Process Capability Analysis

    Explains Cp, Cpk, Pp, and Ppk indices to quantify how well a process meets specifications. Students calculate indices and recommend improvement actions based on results.

Chapter 6See details

Defect Analysis and Root Cause Investigation

  • Lesson 1 • Root Cause Analysis Tools

    Teaches fishbone diagrams, 5-Why analysis, and fault tree analysis for defect investigation. Students select and apply the appropriate tool based on problem complexity.

  • Lesson 2 • Failure Mode and Effects Analysis

    Covers FMEA structure, severity-occurrence-detection scoring, and risk priority number calculation. Proactively identifies high-risk process steps before defects occur in production.

  • Lesson 3 • Metallurgical Failure Analysis

    Introduces fractography, microstructural examination, and hardness mapping to diagnose material failures. Bridges QC inspection findings to engineering-level root cause evidence.

  • Lesson 4 • Corrective and Preventive Action Systems

    Explains the CAPA cycle, effectiveness verification, and lessons-learned integration into process controls. Closes the defect investigation loop and prevents systemic recurrence.

  • Lesson 5 • Non-Conformance Classification and Reporting

    Defines critical, major, and minor non-conformances and establishes reporting workflows. Accurate classification drives appropriate urgency and resource allocation for investigation.

Chapter 7See details

Supplier Quality Management

  • Lesson 1 • Supplier Performance Monitoring

    Establishes KPIs, scorecards, and escalation processes for ongoing supplier quality tracking. Converts audit and inspection data into actionable supplier development decisions.

  • Lesson 2 • Incoming Material Inspection

    Defines inspection levels, sampling plans, and acceptance criteria for purchased metal stock and components. Prevents non-conforming material from entering the production process.

  • Lesson 3 • Supplier Selection and Qualification

    Covers capability surveys, sample approval processes, and qualification criteria for metal suppliers. Ensures only capable suppliers enter the approved supplier list.

  • Lesson 4 • Collaborative Supplier Development

    Covers joint problem-solving, process improvement support, and technology transfer to elevate supplier capability. Shifts the supplier relationship from policing to partnership.

  • Lesson 5 • Supplier Auditing Techniques

    Teaches audit planning, checklist development, on-site execution, and finding classification. Students conduct a simulated supplier audit and write a formal audit report.

Chapter 8See details

Quality Management Systems and Continuous Improvement

  • Lesson 1 • Lean Principles Applied to Quality

    Applies value stream mapping, waste elimination, and error-proofing to reduce quality losses. Connects lean manufacturing concepts to defect prevention in metalworking.

  • Lesson 2 • Control Plans and Process Documentation

    Teaches control plan development linking process steps, inspection methods, and reaction plans. Formalises the in-process QC knowledge built throughout the course.

  • Lesson 3 • Six Sigma DMAIC in Metalworking

    Applies the Define-Measure-Analyse-Improve-Control roadmap to chronic metalworking quality problems. Students complete a condensed DMAIC project using data from earlier chapters.

  • Lesson 4 • Quality Culture and Performance Review

    Addresses management review, quality metrics dashboards, and building a quality-first culture. Ensures QMS improvements are sustained through leadership engagement and accountability.

  • Lesson 5 • Quality Management System Architecture

    Maps the process-based QMS model, including policy, objectives, procedures, and records. Provides the organisational framework that connects all prior course topics.

Certification

Your valid completion certificate

This course is for you:

  • Machinist: wants to move from making parts to inspecting them.

  • QC technician: ready to formalize hands-on experience with structured methodology.

  • Manufacturing engineer: needs deeper fluency in defect analysis and process control.

  • Welding inspector: looking to expand credentials beyond visual examination alone.

  • Career changer: entering metalworking quality from a general manufacturing background.

  • Production supervisor: aiming to lead quality initiatives across an entire shop floor.

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