Guidance Notes for the Certification of Metallic Parts made by Additive Manufacturing

Revolutionary technology does not automatically result in saleable products overnight. 

Additive manufacturing (AM) techniques have significant barriers to overcome in delivering a manufacturing process that produces consistent quality and safety. 

LR and TWI's Guidance Notes for Additive ManufacturingOur Guidance Notes provide a goal-based framework that manufacturers can follow to achieve certification with LR, and subsequently provide confidence to end users that a specific part manufactured using AM meets the required codes, standards, controls and best practises.

In our 2017 issuance (following up to our January 2016 version), we address the capabilities and variability introduced by Wire Arc Additive Manufacturing (WAAM), as well as extending upon Laser Powder Bed Fusion and Laser Metal Deposition processes, all based on LR's real-world experience from assurance and certification of AM parts.

Key topics addressed in the Guidance Notes, and where LR can support your organisation further, include:

  • Suitability for additive manufacturing
  • Certification approach and activities
  • Design
  • Materials
  • Manufacturing
  • Post-processing
  • Inspection and testing
  • Organisational requirements

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