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1.1 This document describes a method for defining requirements and assuring component integrity for plastic parts created using material extrusion based additive manufacturing processes. It relates to the process, equipment and operational parameters. Processes include all material extrusion based additive manufacturing processes. This document is intended for use by AM users and customers procuring such parts. The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, each system needs to be used independently of the other. Combining values from the two systems can result in non-conformance with this document.

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This document specifies the features of laser-based powder bed fusion of metals (PBF-LB/M) and provides detailed design recommendations.Some of the fundamental principles are also applicable to other additive manufacturing (AM) processes, provided that due consideration is given to the process-specific features.This document also provides a state of the art review of design guidelines associated with the use of powder bed fusion (PBF) by bringing together relevant knowledge about this process and by extending the scope of ISO/ASTM 52910.

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This document specifies the features of laser-based powder bed fusion of polymers (LB-PBF-P) and provides detailed design recommendations. Some of the fundamental principles are also applicable to other additive manufacturing (AM) processes, provided that due consideration is given to process-specific features. This document also provides a state-of-the-art review of design guidelines associated with the use of powder bed fusion (PBF) by bringing together relevant knowledge about this process and by extending the scope of ISO/ASTM 52910.

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1.1 This document specifies the features of electron beam powder bed fusion of metals (PBF-EB/M) and provides detailed design recommendations.1.2 Some of the fundamental principles are also applicable to other additive manufacturing (AM) processes, provided that due consideration is given to process-specific features.1.3 This document also provides a state of the art review of design guidelines associated with the use of powder bed fusion (PBF) by bringing together relevant knowledge about this process and by extending the scope of ISO/ASTM 52910 (1).1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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1.1 This practice is intended to be used to assign part classifications across the aviation industries that use AM to produce parts.1.2 This practice is applicable to all AM technologies defined in ISO/ASTM 52900 used in aviation.1.3 This practice is intended to be used to establish a metric for AM parts in downstream documents.1.4 This practice is not intended to establish criteria for any downstream processes, but rather to establish a metric that these processes can use.1.5 The part classification metric could be utilized by the engineering, procurement, non-destructive inspection, testing, qualification, or certification processes used for AM aviation parts.1.6 The classification scheme in this practice establishes a consistent methodology to define and communicate the consequence of failure associated with AM aviation parts.1.7 This practice is not intended to supersede the requirements and definitions of the applicable regulations or policies, including but not limited to the ones listed in Annex A1.1.8 Tables A1.1-A1.3 align the existing regulations and guidance with the four part classes established herein. However, this alignment should not be construed as an alignment of the existing regulations to each other.1.9 The material or process, or both, in general does not affect the consequence of failure of a part, therefore the classification scheme defined in this document may be used outside AM.1.10 The user of this standard should not assume regulators’ endorsement of this standard as accepted mean of compliance.1.11 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.12 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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3.1 The general approach to this practice is to serve as an “overlay” of requirements to the ASTM F3411-22a Standard Specification for Remote ID and Tracking by identifying mandatory portions, substituting values as needed, overriding items that may be optional, and providing additional requirements that are beyond the scope of Specification F3411, yet are necessary to provide proper guidance to meet the requirements set forth in Part 89.3.2 Furthermore, this practice provides additional details on minimal testing requirements for those submitting a DOC based on this MOC.1.1 This practice provides a Means of Compliance (MOC) that gives sufficient clarity to the Unmanned Aircraft System (UAS) or Broadcast Module manufacturers to produce a compliant Remote ID (RID) System (RIDS) such that submitting a Declaration of Compliance2 (DOC) to this MOC will satisfy the requirements of the Federal Aviation Administration (FAA) 14 CFR Part 89 (Part 89) rule.3 This practice also explains what to expect from aircraft operating in compliance to this MOC.1.2 The FAA provided three options to comply with the Remote ID regulations: Standard Remote ID UAS, Remote ID Broadcast Modules, and FAA-recognized identification areas (FRIAs). The scope of this MOC is to cover both Standard RID and RID Broadcast Modules.1.3 The FRIA portion of the rule is out of scope since it provides a means to avoid the technical RID requirements by operating within administrative boundaries.1.4 Both SI and non-SI units are used in this document. Since this is an aviation standard and it addresses FAA rules, some units are used in preference of being consistent with industry and regulatory norms.1.5 Table of Contents:Title Section 1Referenced Documents 2 3Subset of Options in the F3411 Specification Considered 4Requirements and Exceptions from the F3411 Specification 5Alternative Applications of Specification F3411 to Meet Part 89    Requirements 6MOC Requirements Not Covered by the Practice 7Test Methods 8Precision and Bias 9Satisfaction of Rule Requirements 10Keywords 11ANNEX A1—Simulation Option for Accuracy Testing Annex A1APPENDIX X1—External Device for GCS Location Source Rationale Appendix X1APPENDIX X2—Power Level Rationale Appendix X21.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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1.1 This specification covers additive manufacturing of parts manufactured via laser beam powder bed fusion (PBF-LB) processing of Grade 4340 (UNS G43400) used in transportation applications, including automotive applications. Parts made using this processing method require heat treatment to achieve maximum strength and are typically used in applications that require mechanical properties similar to wrought Grade 4340 (UNS G43400) products. Products built to this specification may require additional post-processing in the form of machining, polishing etc. to meet necessary surface finish and dimensional tolerances.1.2 This specification describes the required facility, training, equipment, and processing requirements necessary to support the production of parts with properties and associated quality metrics outlined in a part classification structure.1.3 This specification is intended for the use of purchasers or producers, or both, of PBF-LB Grade 4340 (UNS G43400) parts for defining the requirements based on classification methodology. These requirements shall be agreed upon by the part supplier and purchaser.1.4 Users are advised to use this specification as a basis for obtaining parts that will meet the minimum acceptance requirements established and revised by consensus of committee members.1.5 User requirements considered more stringent may be met by additional requirements in the purchase order.1.6 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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