-STD-6030 


Table 9—Virgin Powder Feedstock Controls 

Powders 
a 
Requiring powder producers and distributors to operate under a QMS conforming to SAE 
AS9100, SAE AS9120, Quality Management Systems – Requirements for Aviation, Space, and 
Defense Distributors, or an equivalent approved by the CEO. 
b Specifying unambiguously the method of powder manufacture. 
c Specifying powder chemistry requirements, including acceptable methods of measurement and 
tolerance. 
d 
Specifying particle size distribution (PSD) requirements and the acceptable methods for powder 
sampling and determining the PSD, including explicit limits in weight percent on the quantity of 
coarse and fine particles outside the PSD range. 
e Specifying, at least qualitatively, the mean particle shape (powder morphology) and limits on 
satellite/agglomerated particles using standardized terminology/methodology.*   
f Controlling the blending of virgin powder heats/batches into powder lots by requiring that each 
blended powder heat/batch individually meets all requirements of the feedstock specification.  
g Prohibiting post-production additions to the powder lot for control of PSD or chemistry (doping).  
h Providing requirements for powder cleanliness and contamination control, including moisture 
content for sensitive materials. 
i Providing requirements for powder packaging, labeling, and environmental controls.  
j Specifying rheological (flow and spreading) behavior of the powder and associated method of 
verification. 
k 
Specifying a certificate of compliance be provided for all levied requirements along with 
identifiers for each powder heat and blended lot and the date(s) and location(s) of powder 
production. 
l Specifying powder crystallinity morphology control, such as solvent processing procedures and 
heat treatments, if applicable. 
* Description of powder morphology requirements should use standardized terminology to the greatest 
extent possible by following powder standards such as ASTM F1877, Standard Practice for Characterization 
of Particles, and ASTM B243, Standard Terminology of Powder Metallurgy.   


Section Description Requirement in this Standard 
Applicable 
(Enter Yes 
or No) 

Comments 

Table 10—Wire Feedstock Controls 
Wire 
a Requiring wire producers and distributors to operate under a QMS conforming to SAE  AS9100, 
SAE AS9120, or an equivalent approved by the CEO. 
b Specifying unambiguously the method of wire manufacture, including rolling and drawing.  
c Specifying wire chemistry requirements, including acceptable methods of measurement and 
tolerance. 
d Specifying geometric constraints and length requirements, including explicit tolerance.  
e Specifying finish requirements, including explicit tolerance. 
f Specifying permissible method of joining both ends for repair or break during wire processing at 
the production facility. 
g Providing requirements for wire cleanliness and contamination control. 
h Providing requirements for wire winding packaging, labeling, and environmental controls.  
i Specifying a certificate of compliance be provided for all levied requirements along with 
identifiers for each wire lot and the date and location of wire production.  


Table 11—Filament Feedstock Control 
Filament 
a Requiring filament producers and distributors to operate under a QMS conforming to SAE 
AS9100, SAE AS9120, or an equivalent approved by the CEO. 


Section Description Requirement in this Standard 
Applicable 
(Enter Yes 
or No) 

Comments 
b Specifying unambiguously the method of filament manufacture. 
c Specifying filament chemistry requirements, including acceptable methods of measurement and 
tolerance. 
d Specifying geometric constraints and length requirements, including acceptable methods of 
measurement and tolerance. 
e Specifying moisture requirements, including acceptable methods of measurement and tolerance.  
f Specifying permissible method of joining both ends for repair or break during filament processing 
at the production facility, if applicable. 
g Providing requirements for filament cleanliness and contamination control.  
h Providing requirements for filament winding packaging, labeling, and environmental controls.  
i Providing batch monitoring requirements for differential scanning calorimetry. 
j Specifying a certificate of compliance be provided for all levied requirements along with  
identifiers for each filament lot and the date and location of filament production.  

Table 12—Liquid Feedstock Controls 
Liquid 
a Requiring resin producers and distributors to operate under a QMS conforming to SAE AS9100, 
SAE AS9120, or an equivalent approved by the CEO. 
b Specifying unambiguously the method of liquid manufacture. 


Section Description Requirement in this Standard 
Applicable 
(Enter Yes 
or No) 

Comments 
c Specifying liquid chemistry requirements, including acceptable methods of measurement and 
tolerance. 
d Specifying liquid viscosity, including explicit tolerance. 
e Prohibiting post-production additions to the material lot for control of chemistry (doping). 
f Providing requirements for liquid cleanliness and contamination control. 
g Providing requirements for liquid packaging, labeling, and environmental controls.  
h Specifying a certificate of compliance be provided for all levied requirements along with 
identifiers for each material lot and the date and location of material production.  


5.4.1.2 Feedstock Reuse 
Requirements 
[AMR-39] For a candidate QMP-A or candidate QMP-B, a feedstock reuse protocol governed by the following rules shall be 
defined and implemented: 
 Metrics are defined for tracking the progression of feedstock reuse for each unique machine operated per the QMP.  
 Limits on feedstock reuse are defined and implemented based on metrics. 
 The performance of AM material produced from reused feedstock up to the defined limit of reuse is tested and 
substantiated through material characterization in the MPS per the requirements of section 6.6 of this NASA 
Technical Standard. 
d. Feedstock at the defined limit of reuse cycles continues to meet all requirements of the original feedstock 
specification. 
e. For powder feedstock systems, used feedstock is sieved in accordance with the coarse particle limits of the particle 
size distribution specification and remixed and/or blended with additional virgin powder to eliminate particle size 
segregation after every cycle through the build process. 
f. Once a reused portion of a feedstock blend reaches the reuse limit, the feedstock blend is no longer used in part 
production under the auspices of the QMP. 
g. Feedstock blends that have reached the reuse limit may still be used in material characterization builds used to 
evaluate reuse limits on material properties. 


Section Description Requirement in this Standard 
Applicable 
(Enter Yes 
or No) 

Comments 
h. Reuse limits may be reevaluated and expanded as long as the requirements of items “c” and “d” of this section are 
met. 
i. When a reused feedstock no longer meets the virgin feedstock requirements, the addition of virgin feedstock or  other 
additions to bring the feedstock back into specification is not allowed. 
5.4.2.1 AM Build Process [AMR-40] The AM build process shall be defined in the Candidate QMP by a comprehensive list of fixed, key process 
variables of known influence on the AM build process for any given AM machine.  

5.4.2.2 Process Restart 
Procedures 
[AMR-41] If a capability to restart the AM process is intended, criteria for determining the suitability for process restart and 
the detailed procedures for restarting the AM process shall be defined as part of the Candidate QMP specific to the AM 
equipment for which the material process applies. 

5.4.3 Post-Processing [AMR-42] All AM post-processing (e.g., thermal processing, photo processing, curing) that affects bulk material condition 
shall be defined in the Candidate QMP to manage property and microstructural evolution from the as -built state to the final 
state. 

5.4.3.1 Control of 
Thermal Post-
Processing 
[AMR-43] Control of thermal post-processing operations shall be compliant with SAE AMS2750, Pyrometry, or similar 
approved standard. 

5.4.3.2 Variations in Post-
Processing 
[AMR-44] Variations on post-processes that affect material condition (e.g., thermal or photo process) shall be included in the 
definition of the Candidate QMP and each unique variation qualified and documented per section 5 of this NASA Technical 
Standard through demonstration that the performance of the resulting material is equivalent to that of the baseline.  

5.4.3.3 Hot Isostatic 
Pressing (HIP) 
[AMR-45] MPs used for metallic Class A, B1, and B2 part production shall include HIP.   
5.4.4 Customized 
Material Process 
[AMR-46] Any candidate material process using specific controls or unique witness specimen testing to achieve and/or 
demonstrate particular material performance characteristics shall be identified as a customized material process and include 
the following in the definition of the candidate material process: 
a. Description of the desired performance characteristics. 
b. Definition of the unique process controls used to achieve the desired material performance characteristics, if any.  
c. Definition of the requisite witness specimen tests and acceptance criteria used to confirm the desired performance 
characteristics of the material. 

5.5 Qualification of a 
Candidate 
Material Process 
[AMR-47] All candidate material processes shall be qualified as either a QMP-A, QMP-B, or QMP-C prior to production use, 
with an option to use a sub-QMP if the process commonality criteria of section 5.5.1 of this NASA Technical Standard are 
met. 


Section Description Requirement in this Standard 
Applicable 
(Enter Yes 
or No) 

Comments 
5.5.1 Subsequent 
Qualified Material 
Process (Sub-
QMP) 
[AMR-48] A candidate material process shall share the following commonality criteria with an existing, approved QMP to 
enable the use of a Sub-QMP: 
a. Feedstock controls are identical. 
b. The AM build process definition is equivalent, meaning: 
(1) Same make of AM machine with equivalent configuration and build volume. 
(2) Same make and model of printer head hardware.  
(3) Same scheme for setting build path and assigning parameters. 
(4) Same layer thickness. 
c. Post-AM process definition is identical. 

5.5.2 Standardized 
Content for Builds 
Used for 
Qualification 
[AMR-49] A set of builds that specifies the content, geometry, and layout of all evaluation specimens needed for qualification 
of the candidate material process as QMP-A, QMP-B, QMP-C, or associated Sub-QMP shall be standardized for use in the 
evaluations required by section 5.5.3 of this NASA Technical Standard. 

5.5.3 Qualification 
Criteria 
[AMR-50] For AM machines with multiple energy sources, all evaluations and qualification criteria of section 5.5.3 of this 
NASA Technical Standard shall apply independently to each energy source. 

5.5.3.1 Quality of the As-
built Material, 
Metals 
[AMR-51] For QMP-A and QMP-B, the as-built material shall be demonstrated free of detrimental defects for each of the 
following cases when evaluated in cross-section at a minimum magnification of 50x, with resolution sufficient to distinguish 
defects common to the process and a combined area of evaluation ≥6 cm2 (0.93 in2) when combined across all cases and 
evaluations listed here: 
a. Survey of consistency throughout the build area. 
b. Demonstration that the process window remains free of detrimental defects at the credi ble extremes of the process 
(i.e., at the limiting range, given allowed tolerances of key process variable parameter settings, or at the extremes of 
thermal history due to geometry and scan/deposition pattern). 
c. Restart layer interfaces. 
d. Interfaces or overlaps in build path (e.g., striping, islands, multi-laser overlap zones), surface contours, cosmetic 
passes, including any interface associated with a unique build parameter set (e.g., down -facing, or low-angle 
surfaces). 
e. Typical geometry of the as-built deposition layer characterized for record using an unaltered final deposition layer for 
specimens representing nominal process conditions, to include metrics such as depth of the melt -pool and depth of 
melt-pool overlaps normalized by nominal layer thickness averaged over a minimum of measurements. 

5.5.3.2 Quality of the As-
built Material, 
Polymers 
[AMR-52] For QMP-B, the as-built material shall be demonstrated free of detrimental defects for each of the following cases 
when evaluated in cross section at a minimum magnification of 50x, with resolution sufficient to distinguish defects common 
to the process and a total area of evaluation ≥6 cm2 (0.93 in2) when combined across all cases listed here: 
 Survey of consistency throughout the build area. 


Section Description Requirement in this Standard 
Applicable 
(Enter Yes 
or No) 

Comments 
 Demonstration that the process window remains free of detrimental defects at the credible extremes of the process 
(i.e., at the extremes of the parameter settings, considering tolerance, or at the extremes of thermal history due to 
geometry and scan pattern). 
 Restart layer interfaces. 
 Interfaces or overlaps in build path (striping, islands, multi-processed zones), surface contours, and cosmetic passes, 
including any interface associated with a unique build parameter set (e.g., down -facing surfaces for relevant overhang 
angles). 
e. Typical geometry of the as-built deposition layer characterized for record using an unaltered final deposition layer for 
specimens representing nominal process conditions, to include measures such as the depth of the melt -pool and depth 
of melt-pool overlaps normalized by nominal layer thickness, averaged over a minimum of ten measurements.  
5.5.3.3 Material 
Microstructural 
Evolution 
[AMR-53] The candidate material process shall be evaluated for objective evidence of controlled evolution of the material 
microstructure as follows: 
a. QMP-A and QMP-B: from the as-built to the final material structure, including all intermediate post-processing steps 
that alter the material structure. 
b. Sub-QMP-A and Sub-QMP-B: as-built and final material structure. 
c. QMP-C: the final material structure. 

5.5.3.3.1 Material 
Microstructural 
Evolution 
Acceptance 
Criteria 
[AMR-54] The microstructural evolution acceptance criteria shall be documented for: 
a. QMP-A and QMP-B: the as-built and the final material structure, at minimum. 
b. Sub-QMP-A and Sub-QMP-B: as-built and final material structure. 
c. QMP-C: the final material structure. 

5.5.3.4 Surface Texture 
and Detail 
Resolution 
[AMR-55] For QMP-A and QMP-B, as-built surface texture and detail resolution capability of the AM process shall be 
evaluated using reference part(s) from a minimum of two locations in the build area:  
a. The near center of the build area. 
b. The edge of the build area or other process-sensitive location identified with reduced build quality. 

5.5.3.4.1 Surface Texture 
Metrics and 
Acceptance 
Criteria 
[AMR-56] For each QMP-A and QMP-B, consistent measures of as-built surface texture and detail resolution with associated 
acceptance criteria shall be defined. 

5.5.3.5 Mechanical 
Properties 
[AMR-57] Mechanical properties shall be evaluated for all candidate material processes with, at minimum, the specimen 
quantities according to Tables 13, 14, 15, or 16, as applicable. 


Table 13—Minimum Mechanical Property Tests for Metal QMP Builds 


Section Description Requirement in this Standard 
Applicable 
(Enter Yes 
or No) 

Comments 

QMP 
Item Property 
ASTM 
Standard* Quantity Notes 
      QMP-A QMP-B QMP-C   
1 Tensile E8/E8M 15 15 6 
Survey of build area and materials using 
machine tensile specimens meeting 
requirements of sections 5.5.3.1.a and 
5.5.3.1.b of this NASA Technical 
Standard. 
2 
Tensile, with 
Process 
Restart 
E8/E8M 5 5 - 
Required if process restart is allowed. 
Tensile testing of process restart interface 
characterized by restarting in sample 
gauge section of machined specimen. Item 
2 tests not required if restart is included in 
testing for Item 1. 
3 
High Cycle 
Fatigue 
(HCF) 
E466 10 5 - 
For QMP-A, five (5) tests to MPS PCRD 
fatigue condition, and five (5) tests at 
cyclic stress range producing failure 
>10^6 cycles that replicate R-ratio and 
stress range of existing MPS data, 
enabling comparison. For QMP-B, five (5) 
tests to MPS PCRD fatigue condition. 
4 
Low Cycle 
Fatigue 
(LCF) 
E606/E606M 5 5 - Five (5) tests at a cyclic strain range 
represented in MPS data. 
5 
Fatigue, with 
Process 
Restart 
E466, 
E606/E606M 5 5 - 
Required if process restart is allowed. 
Fatigue testing of process restart with 
HCF or LCF, five (5) tests at the MPS 
PCRD fatigue condition. Item 5 tests not 
required if restart is included in tests from 
Items 3 and/or 4. 
6 Fracture 
Toughness E1820, E399 3 0 - Tests with crack in worst-case orientation 
relative to build plane. 


Section Description Requirement in this Standard 
Applicable 
(Enter Yes 
or