Module 7.14.3 Additive manufacturing in New in the EASA exams - 3-D Printing

BBS English EASA part 66 CAT-A, B1, B2, B3
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Module 7.14.3 Additive manufacturing in New in the EASA exams - 3-D Printing

Post by easaman »

EASA has included additive manufacturing (7.14.3) in Mod 07.
Module 7.14.3 Additive manufacturing

Common additive manufacturing techniques and their influence on the mechanical properties of the finished part;
Inspection of additive manufactured parts and common production failures.


EASA Proposed Update to Issue 4 of Certification Memorandum ref. CM-S-008 on "Additive Manufacturing"
Applicable to Large Aeroplanes, General Aviation, Rotorcraft, Propulsion, and Parts and Appliances
easaman
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Re: Module 7.14.3 Additive manufacturing in New in the EASA exams - 3-D Printing

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Additive Manufacturing (AM): Overview

Additive Manufacturing (AM), commonly known as 3D printing, is a process that builds objects layer by layer using digital 3D models. Unlike traditional subtractive manufacturing (cutting, drilling, milling), AM adds material only where needed, reducing waste and enabling complex designs.
🔧 Types of Additive Manufacturing Technologies

Fused Deposition Modeling (FDM) – Uses a heated nozzle to extrude plastic filament (e.g., PLA, ABS).
Stereolithography (SLA) – Uses UV light to cure liquid resin layer by layer.
Selective Laser Sintering (SLS) – Uses a laser to sinter powdered material (e.g., nylon, metal).
Direct Metal Laser Sintering (DMLS) / Selective Laser Melting (SLM) – Similar to SLS but for metals.
Binder Jetting – Sprays a binding agent onto a powder bed to form parts.
Material Jetting – Deposits liquid material droplets that harden under UV light.
Laminated Object Manufacturing (LOM) – Layers thin sheets of material and bonds them together.

🏆 Advantages of Additive Manufacturing

✅ Design Freedom – Allows complex, lightweight, and customized structures.
✅ Reduced Material Waste – Uses only the necessary material.
✅ Rapid Prototyping – Speeds up product development and iteration.
✅ On-Demand Manufacturing – Reduces inventory costs and lead times.
✅ Lightweight & Strong Parts – Ideal for aerospace, automotive, and medical applications.
⚠️ Challenges of Additive Manufacturing

❌ Slower Production Speeds – Not always suitable for mass production.
❌ Material Limitations – Fewer material choices compared to traditional manufacturing.
❌ Post-Processing Required – Many parts need sanding, curing, or sintering.
❌ High Initial Costs – Industrial 3D printers and materials can be expensive.
🏗️ Applications of Additive Manufacturing

🔹 Aerospace – Lightweight components for fuel efficiency.
🔹 Automotive – Prototyping and custom parts.
🔹 Healthcare – 3D-printed prosthetics, implants, and bioprinting.
🔹 Construction – 3D-printed buildings and structures.
🔹 Consumer Products – Custom shoes, jewelry, and gadgets.
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