Fifteen proposed standards from ASTM International’s committee on additive manufacturing (F42) may help companies comply with a new checklist for accreditation by the National Aerospace and Defense Contractors Accreditation Program (NADCAP). The checklist is available through the Performance Review Institute.
“The development of a NADCAP accreditation checklist for additive manufacturing technologies is a critical step for the aerospace industry,” says Brian Kosinski, vice president of mission assurance at SSL, a satellite company based in Silicon Valley. “Standardization of materials and methods, where quality is essential, will be helpful for this rapidly evolving, highly process-sensitive industry.”
This effort will supplement existing specifications published since 2012 for metal powder bed fusion. New standards that will provide reference documentation for NADCAP accreditation include:
• Guide for Creating Feedstock Specifications for Metal Powder Bed Fusion
• Guide for Storage of Build Cycle Technical Data
• Specification for Post Thermal Processing of Metal Powder Bed Fusion Parts
• Guide for Specifying Gases and Nitrogen Generators Used with Metal Powder Bed Fusion Machines
• Guide for Receiving and Storing of Metal Powders Used in Powder Bed Fusion
• Practice for Metal Powder Reuse in the Powder Bed Fusion Process
• Guide for Cleaning Metal Powder Bed Fusion Machines
• Guide for Disposal of Metal Powders Used for Powder Bed Fusion
• Guide for IQ, OQ and PQ of Metal PBF Machines
• Practice for Digital Data Workflow Control for the Metal Powder Bed Fusion Process
• Guide to Establish Manufacturing Plan for Metal Powder Bed Fusion Production Parts
• Guide for Metallographic Evaluation of Metal Powder Bed Fusion Test Specimens and Parts to determine porosity.
• Guide for Establishing a Personnel Training Program for Metal Powder Bed Fusion Part Production
• Guide for Creating Maintenance Schedules and Maintaining Metal Powder Bed Fusion Machines
• Guide for Calibrating Metal PBF Machines and Subsystems
The new standards will be offered for development in conjunction with the International Standards Organization’s Technical Committee 261 through a Partner Standards Developing Organization agreement.