EN IS0/ASTM 52904 EUROPEANSTANDARD NORME EUROPEENNE EUROPAISCHE NORM July 2024 ICS 25.030 SupersedesENIS0/ASTM52904:2020 English Version Additive manufacturing of metals - Process characteristics and performance - Metal powder bed fusion process to meet critical applications (IS0/ASTM 52904:2024) Fabrication additive de métaux - Caracteristiques et Additive Fertigung von Metallen performances du procedé - Procede de fusion sur lit de Prozessanforderungen und Qualifizierung poudre métallique en vue de repondre aux applications Pulverbettbasiertes Schmelzen von Metallen fir critiques (IS0/ASTM 52904:2024) kritische Anwendungen (IS0/ASTM 52904:2024) This European Standard was approved by CEN on 12 july 2024. European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkiye and United Kingdom. cen EUROPEAN COMMITTEE FOR STANDARDIZATION COMITE EUROPEENDENORMALISATION EUROPAISCHESKOMITEEFURNORMUNG CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels @2024CEN All rights of exploitation in any form and by any means reserved Ref.No.EN IS0/ASTM 52904:2024 E worldwide for CEN national Members. ENIS0/ASTM 52904:2024 (E) Contents Page 2 ENIS0/ASTM52904:2024(E) European foreword Thisdocument (ENIS0/ASTM52904:2024)has been prepared byTechnical CommitteeIS0/TC 261 "Additive manufacturing"in collaboration with Technical Committee CEN/TC 438 “Additive Manufacturing"the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at thelatest by January 2025, and conflicting national standards shall bewithdrawn at thelatestby January2025. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. This documentsupersedes ENIS0/ASTM52904:2020. Any feedback and questions on this document should be directed to the users' national standards body/national committee.A complete listing ofthesebodies can befound on the CEN website. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkiye and the United Kingdom. Endorsement notice ThetextofIS0/ASTM52904:2024hasbeenapprovedbyCENasENIS0/ASTM52904:2024without anymodification. 3