AS ISO ASTM 52901:2021 pdf free download – Additive manufacturing – General principles- Requirements for purchased AM parts

AS ISO ASTM 52901:2021 pdf free download – Additive manufacturing – General principles- Requirements for purchased AM parts.
It is applicable for use as a basis to obtain parts made by additive manufacturing that meet minimum acceptance requirements. More stringent part requirements can be specified through the addition of one or more supplementary requirements at the time of the order.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced docunwnt (Including any amendments) applies.
ISO 17296-3, Additive manufacturing — General principles — Part 3: Main characteristics and correspondln,q test methods
ISO/ASTM 52900, Additive inanujacturing — General principles — Terminology
l5O/ASTM 52921. Standard terminology for additive manufacturing — Coordinate systems and test methodologies
ASTM F 3122, Standard Guide for Evaluating Mechanical Properties of Metal Materials Made via Additive Manufacturing Processes
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO/ASTM 52900 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia available at http://www.electropedia.org/
— ISO Online browsing platform: available at http/jwww .org/obp
3.1
pre-shipment inspection
inspection carried out by the part producer on the parts to be supplied according to the part definition or on the test units in order to verify that these parts are In compliance with the order requirements
3.2
qualilicatlun part
part fabricated prior to commencing production which is used to qualify specific aspects of the manufacturing process or part characteristics in order to use as a basis to Initiate production
3.3
first production part
part with the same geometry (and with the same tolerances), same material and same properties as the one requested by the order that allows verification by the customer (LU) that the production processes are capable of producing parts that meet the requirements
4.3.4 Surface texture
The surface texture (also known as surface finish) of the part should be specified, if possible by reference to existing standards (e.g. by using ISO 1302 and/or ISO 2517H-1).
The surface texture requirement may be specified by a maximum value of roughness/waviness for the whole part or bya specific roughness/waviness for one or more critical surfaces.
NOTE The surlace texture typically depends on several process parameters. Including part orientation and layer thickness.
4.3.5 Part manufacturing process
The desired manufacturing process for building the part shall he identified, including necessary post- processing steps (e.g. heat treatment, surface finishing).
The build orientation shall follow the rules given in ISO/ASTM 52921.
NOTE the build orientation is usually chosen by the part provider to meet the requirements; however, the customer can specify the build orientation of the part if needed to achieve specific mechanical properties.
4.3.6 Feedstock for the part to be manufactured
The type and/or Innits of the chemical composition of the Ieedstock for the part to be manufactured shall be specified by reference to existing standards and/or material specifications.
The purchase order shall mention or reference appropriate specifications for
— characteristics of the feedstock for the part to be manufactured.
— storage, handling, and processing requirements for proper use of feedstock and to control its properties, and
— if necessary to meet the customer requirements, information about the allowed use of recycled (reused) feedstock.
NOTE If the customer is concerned about the country of origin of the feedstock or the producer of the feedstock. the desired source of feedstock can be specified.
4.3.7 Repair methods
Any repair shall be communicated to the customer and authorized prior to being performed. The authorized repair methods (such as repair by material deposition, welding, gluing, or bonding) and corresponding repair conditions shall be specified If needed and shall be approved by the customer.