公开(公告)号：US20160258045A1

公开(公告)日：2016-09-08

申请号：US14836494

申请日：2015-08-26

申请人： General Electric Company ,  The Regents of the University of Michigan

发明人： William Thomas Carter, JR. ,  Todd Jay Rockstroh ,  Douglas Gerard Konitzer ,  Jyotirmoy Mazumder ,  Jeongyong Choi

IPC分类号： C22F1/10 ,  B23K26/00 ,  B23K26/08 ,  B23K26/144 ,  B23K26/342 ,  B23K26/70

CPC分类号： B23K26/342 ,  B23K26/0006 ,  B23K26/034 ,  B23K26/083 ,  B23K26/0861 ,  B23K26/0869 ,  B23K26/0884 ,  B23K26/144 ,  B23K26/34 ,  B23K26/346 ,  B23K26/354 ,  B23K26/702 ,  B23K26/703 ,  B23K2101/001 ,  B23K2103/08 ,  B23K2103/26 ,  B23P15/04 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y80/00 ,  C22F1/10

摘要： Apparatus and methods for direct writing of single crystal super alloys and metals are provided. In one method, a substrate is heated to a pretermined temperature below its melting point, and a laser is used to form a melt pool on a surface of a substrate. The substrate is positioned on a base plate, and the laser and the base plate are movable relative to each other, with the laser being used for direct metal deposition and the substrate is heated to a temperature below its melting point. A superalloy powder is introduced to the melt pool, and the temperature of the melt pool is controlled to maintain a predetermined thermal gradient on a solid and liquid interface of the melt pool so as to form a single crystal deposit on the substrate.

摘要翻译： 提供了用于直接写入单晶超级合金和金属的装置和方法。 在一种方法中，将衬底加热到​​低于其熔点的预制温度，并且使用激光器在衬底的表面上形成熔池。 基板定位在基板上，并且激光和基板可相对于彼此移动，激光用于直接金属沉积，并且将基板加热到低于其熔点的温度。 将超合金粉末引入到熔池中，并且控制熔池的温度以在熔池的固体和液体界面上保持预定的热梯度，以在衬底上形成单晶沉积物。

公开(公告)号：US10350708B2

公开(公告)日：2019-07-16

申请号：US15506539

申请日：2015-08-24

申请人： THE REGENTS OF THE UNIVERSITY OF MICHIGAN

发明人： Jyotirmoy Mazumder ,  Jeongyong Choi

IPC分类号： B23K26/34 ,  B23K26/342 ,  B23K26/354 ,  B23K26/03 ,  B23K26/08 ,  B23K26/70 ,  B23K26/144 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y80/00 ,  B23K26/00 ,  C22F1/10 ,  B23K26/346 ,  B23K101/00 ,  B23K103/08 ,  B23K103/18 ,  B23P15/04

摘要： A method and apparatus for direct writing of single crystal super alloys and metals. The method including heating a substrate to a predetermined temperature below its melting point; using a laser to form a melt pool on a surface of the substrate, wherein the substrate is positioned on a base plate, and wherein the laser and the base plate are movable relative to each other, the laser being used for direct metal deposition; introducing a superalloy powder to the melt pool; and controlling the temperature of the melt pool to maintain a predetermined thermal gradient on a solid and liquid interface of the melt pool so as to form a single crystal deposit on the substrate. The apparatus configured to generally achieve the aforementioned method.