公开(公告)号：US20160151860A1

公开(公告)日：2016-06-02

申请号：US14868734

申请日：2015-09-29

Applicant: ALSTOM Technology Ltd

Inventor： Roman ENGELI ,  Thomas ETTER ,  Hossein MEIDANI

IPC: B23K26/342 ,  C22C19/07 ,  C22C38/00 ,  C22C19/03 ,  C21D9/00 ,  C22F1/10

CPC classification number: B23K26/342 ,  B22F3/1055 ,  B22F5/04 ,  B22F2003/1057 ,  B22F2998/10 ,  B22F2999/00 ,  B33Y10/00 ,  C21D9/0068 ,  C22C19/03 ,  C22C19/07 ,  C22C38/00 ,  C22F1/10 ,  Y02P10/295 ,  B22F3/24 ,  B22F2003/248

Abstract: The invention relates to a method for manufacturing a component, especially for gas turbines and other thermo machinery. The method includes providing a data set defining the component for being used in an additive manufacturing process; manufacturing said component by means of said additive manufacturing process according to said data set; and subjecting said manufactured component to a heat treatment (HT) in order to change the microstructure of the manufactured component. The properties of the component are improved in that at least two different component volumes (CA1-CA3) are defined within said component prior to the manufacturing step; at least two different process parameters (A, B) are chosen for the additive manufacturing process, which process parameters (A, B) result in different driving forces for a recrystallization and therefore a different recrystallization behavior in the material of the component; and the additive manufacturing process is executed with one of the at least two process parameters (A, B) being used during manufacturing a first of the at least two component volumes (CA1-CA3), resulting in a first recrystallization behavior in the first component volume, and with the other of the at least two process parameters (A, B) being used during manufacturing a second of said at least two component volumes (CA1-CA7), resulting in a second recrystallization behavior different from said first recrystallization behavior, in the second component volume; and the manufactured component is subjected to a heat treatment (HT), with a holding temperature (T_HT), wherein the holding temperature (T_HT) lies above a recrystallization temperature of at least one of said at least two component volumes.

Abstract translation: 本发明涉及一种用于制造组件的方法，特别是用于燃气轮机和其它热机械。 该方法包括提供定义用于添加制造过程中的组件的数据集; 通过根据所述数据集的所述添加剂制造方法制造所述部件; 并对所制造的部件进行热处理（HT），以改变所制造的部件的微结构。 改进了组分的性质，因为在制造步骤之前在所述组分中限定了至少两种不同的组分体积（CA1-CA3） 选择至少两种不同的工艺参数（A，B）用于添加剂制造工艺，该工艺参数（A，B）导致不同的再结晶驱动力，因此在组分的材料中产生不同的再结晶行为; 并且在制造所述至少两个组分体积（CA1-CA3）中的第一个时使用所述至少两个工艺参数（A，B）中的一个来执行所述添加剂制造过程，导致所述第一组分中的第一重结晶行为 并且在制造所述至少两个组分体积（CA1-CA7）中的第二个时使用所述至少两个工艺参数（A，B）中的另一个，导致与所述第一再结晶行为不同的第二重结晶行为， 在第二个组件卷中; 对所制造的部件进行热保持（HT）保持温度（T_HT），其中保持温度（T_HT）高于所述至少两个组分体积中的至少一个的再结晶温度。