公开(公告)号：US20170182562A1

公开(公告)日：2017-06-29

申请号：US15382411

申请日：2016-12-16

申请人： Georgia Tech Research Corporation

发明人： Suman DAS ,  Rohan BANSAL ,  Justin GAMBONE

IPC分类号： B22F7/06 ,  B22F3/105 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B23P6/00 ,  C30B13/28 ,  C30B13/32 ,  C30B19/08 ,  C30B19/10 ,  C30B29/52 ,  B22F5/04 ,  C30B13/24

CPC分类号： B22F7/062 ,  B22F3/1055 ,  B22F5/009 ,  B22F5/04 ,  B22F2003/1056 ,  B22F2003/1057 ,  B22F2007/068 ,  B23P6/007 ,  B29C64/153 ,  B29L2031/08 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y70/00 ,  B33Y80/00 ,  C30B13/24 ,  C30B13/28 ,  C30B13/32 ,  C30B19/08 ,  C30B19/10 ,  C30B29/52 ,  Y02P10/295

摘要： Scanning Laser Epitaxy (SLE) is a layer-by-layer additive manufacturing process that allows for the fabrication of three-dimensional objects with specified microstructure through the controlled melting and re-solidification of a metal powders placed atop a base substrate. SLE can be used to repair single crystal (SX) turbine airfoils, for example, as well as the manufacture functionally graded turbine components. The SLE process is capable of creating equiaxed, directionally solidified, and SX structures. Real-time feedback control schemes based upon an offline model can be used both to create specified defect free microstructures and to improve the repeatability of the process. Control schemes can be used based upon temperature data feedback provided at high frame rate by a thermal imaging camera as well as a melt-pool viewing video microscope. A real-time control scheme can deliver the capability of creating engine ready net shape turbine components from raw powder material.

公开(公告)号：US20200269322A1

公开(公告)日：2020-08-27

申请号：US16866814

申请日：2020-05-05

申请人： Georgia Tech Research Corporation

发明人： Suman DAS ,  Rohan BANSAL ,  Justin GAMBONE

IPC分类号： B22F7/06 ,  B33Y70/00 ,  B33Y30/00 ,  B33Y50/02 ,  C30B13/24 ,  C30B29/52 ,  B22F5/00 ,  B22F5/04 ,  B23P6/00 ,  B29C64/153 ,  B22F3/105 ,  B33Y10/00 ,  C30B13/28 ,  C30B13/32 ,  C30B19/08 ,  C30B19/10

摘要： Scanning Laser Epitaxy (SLE) is a layer-by-layer additive manufacturing process that allows for the fabrication of three-dimensional objects with specified microstructure through the controlled melting and re-solidification of a metal powders placed atop a base substrate. SLE can be used to repair single crystal (SX) turbine airfoils, for example, as well as the manufacture functionally graded turbine components. The SLE process is capable of creating equiaxed, directionally solidified, and SX structures. Real-time feedback control schemes based upon an offline model can be used both to create specified defect free microstructures and to improve the repeatability of the process. Control schemes can be used based upon temperature data feedback provided at high frame rate by a thermal imaging camera as well as a melt-pool viewing video microscope. A real-time control scheme can deliver the capability of creating engine ready net shape turbine components from raw powder material.