公开(公告)号：US20160090848A1

公开(公告)日：2016-03-31

申请号：US14963688

申请日：2015-12-09

Applicant: ALSTOM Technology Ltd.

Inventor： Roman ENGELI ,  Simone HOEVEL ,  Alexander STANKOWSKI ,  Thomas ETTER ,  Hartmut HAEHNLE

IPC: F01D5/28 ,  B23K26/00 ,  C22F1/10 ,  B23K26/342

CPC classification number: F01D5/286 ,  B22F3/1055 ,  B22F3/11 ,  B22F5/009 ,  B22F2207/17 ,  B23K26/0006 ,  B23K26/342 ,  B23K35/0244 ,  B33Y10/00 ,  B33Y80/00 ,  C22C1/0433 ,  C22C1/10 ,  C22C19/056 ,  C22C19/057 ,  C22F1/10 ,  F05D2300/175 ,  Y02P10/295

Abstract: The invention relates to a method for producing a three-dimensional article or at least a part of such an article made of a gamma prime (γ′) precipitation hardened nickel base superalloy with a high volume fraction (>25%) of gamma-prima phase which is a difficult to weld superalloy, or made of a cobalt base superalloy, or of a non-castable or difficult to machine metal material by means of selective laser melting (SLM), in which the article is produced by melting of layerwise deposited metal powder with a laser beam characterized in that the SLM processing parameters are selectively adjusted to locally tailor the microstructure and/or porosity of the produced article or a part of the article and therefore to optimize desired properties of the finalized article/part of the article.

Abstract translation: 本发明涉及一种三维制品的制造方法或至少一部分这样的制品，该制品是由具有高体积分数（> 25％）的伽马原子（γ'）析出硬化的镍基超级合金制成的， 相，其是通过选择性激光熔化（SLM）难以焊接超级合金，或由钴基超级合金制成的，或不可铸造或难以加工的金属材料，其中制品通过熔融分层沉积 具有激光束的金属粉末的特征在于，选择性地调整SLM处理参数以局部地定制所生产的制品或制品的一部分的微观结构和/或多孔性，并因此优化最终制品/制品的部分的所需性质 。