公开(公告)号：US11993831B1

公开(公告)日：2024-05-28

申请号：US17127796

申请日：2020-12-18

申请人： LOCKHEED MARTIN CORPORATION

发明人： Scott Wesley Smith ,  Servando D. Cuellar ,  Michael A. Reale ,  Ivan Audon Lucatero Sanchez

IPC分类号： C22C21/00 ,  B22F10/10 ,  B22F10/20 ,  B22F10/31 ,  B22F10/36 ,  B22F12/00 ,  B22F12/40 ,  C22C1/04 ,  C22C5/06

CPC分类号： C22C21/00 ,  B22F10/10 ,  B22F10/20 ,  B22F10/31 ,  B22F10/36 ,  B22F12/00 ,  B22F12/40 ,  C22C1/0416 ,  C22C5/06 ,  B22F2203/00 ,  B22F2301/00 ,  C22C2202/00

摘要： Printable high-strength alloys, including aluminum alloys can be produced in an additive manufacturing process. Such alloys can include aluminum-silver (“Al—Ag”) alloys that are produced by a laser melting process using a powder bed fusion. The results of the process and the characteristics of the produced alloy can be determined by controlling at least an energy beam power, an energy beam speed, and/or an energy beam size. The operational parameters can be controlled with high precision to produce a printable, high-strength aluminum alloy.

公开(公告)号：US20240189899A1

公开(公告)日：2024-06-13

申请号：US18061698

申请日：2022-12-05

申请人： Lockheed Martin Corporation

发明人： Zachary Loftus ,  Scott William Cochran ,  Michael A. Reale ,  Scott Wesley Smith

IPC分类号： B22F1/12

CPC分类号： B22F1/12 ,  B33Y70/10

摘要： Provided herein are various enhancements for additive manufacturing using titanium and titanium alloy materials. In one example, a method includes inoculating a titanium material with ceramic particles that produce nucleation sites within the titanium material during successive melt and solidification steps of an additive manufacturing process. The nucleation sites promote grain nucleation during solidification of molten titanium material into solid titanium material during the additive manufacturing process.