公开(公告)号：US10040216B2

公开(公告)日：2018-08-07

申请号：US14025343

申请日：2013-09-12

Applicant: The ExOne Company

Inventor： John A. Bai ,  Kevin D. Creehan ,  Howard A. Kuhn

IPC: B28B1/00 ,  B29C67/00 ,  B33Y10/00 ,  B33Y30/00 ,  C04B35/01 ,  C04B35/053 ,  C04B35/111 ,  C04B35/14 ,  C04B35/26 ,  C04B35/453 ,  C04B35/457 ,  C04B35/46 ,  C04B35/486 ,  C04B35/505 ,  C04B35/528 ,  C04B35/56 ,  C04B35/565 ,  C04B35/581 ,  C04B35/584 ,  C04B35/632 ,  C04B35/634 ,  B22F3/00 ,  B29C64/165 ,  B29K105/00 ,  B29K31/00 ,  B29K303/04 ,  B29K303/06 ,  B22F1/00

CPC classification number: B28B1/001 ,  B22F1/0018 ,  B22F3/008 ,  B22F2998/10 ,  B29C64/165 ,  B29K2031/04 ,  B29K2039/06 ,  B29K2105/0005 ,  B29K2105/251 ,  B29K2303/04 ,  B29K2303/06 ,  B33Y10/00 ,  B33Y30/00 ,  C04B35/01 ,  C04B35/053 ,  C04B35/111 ,  C04B35/14 ,  C04B35/26 ,  C04B35/453 ,  C04B35/457 ,  C04B35/46 ,  C04B35/486 ,  C04B35/505 ,  C04B35/528 ,  C04B35/5626 ,  C04B35/565 ,  C04B35/581 ,  C04B35/584 ,  C04B35/632 ,  C04B35/634 ,  C04B2235/6026 ,  B22F3/1017

Abstract: Three-dimensional printing processes are disclosed which utilize printable fluids comprising a carrier fluid, a polymeric binder, and nanoparticles. The three-dimensional printing processes are useful for making articles from a build material powder, e.g., a ceramic, metal, metal alloy, or intermetallic powder. The nanoparticles enable low temperature interparticle bonding of the build material powder particles, e.g., by forming bridging bonds between adjacent powder particles, and/or increasing the interparticle friction between the build material powder particles to enhance the structural strength of the as-built article during a thermal treatment over at least a part of the temperature range which has as its low end the temperature at which the structural strength due to the binder becomes insubstantial and as its high end the temperature at which the structural strength due to interparticle sintering of the build material powder becomes substantial, i.e., the article's debile temperature range. Green density improvements are achievable.

公开(公告)号：US20150069649A1

公开(公告)日：2015-03-12

申请号：US14025343

申请日：2013-09-12

Applicant: The ExOne Company

Inventor： John A. Bai ,  Kevin D. Creehan ,  Howard A. Kuhn

IPC: B28B1/00 ,  B29C67/00

CPC classification number: B28B1/001 ,  B22F1/0018 ,  B22F3/008 ,  B22F2998/10 ,  B29C64/165 ,  B29K2031/04 ,  B29K2039/06 ,  B29K2105/0005 ,  B29K2105/251 ,  B29K2303/04 ,  B29K2303/06 ,  B33Y10/00 ,  B33Y30/00 ,  C04B35/01 ,  C04B35/053 ,  C04B35/111 ,  C04B35/14 ,  C04B35/26 ,  C04B35/453 ,  C04B35/457 ,  C04B35/46 ,  C04B35/486 ,  C04B35/505 ,  C04B35/528 ,  C04B35/5626 ,  C04B35/565 ,  C04B35/581 ,  C04B35/584 ,  C04B35/632 ,  C04B35/634 ,  C04B2235/6026 ,  B22F3/1017

Abstract: Three-dimensional printing processes are disclosed which utilize printable fluids comprising a carrier fluid, a polymeric binder, and nanoparticles. The three-dimensional printing processes are useful for making articles from a build material powder, e.g., a ceramic, metal, metal alloy, or intermetallic powder. The nanoparticles enable low temperature interparticle bonding of the build material powder particles, e.g., by forming bridging bonds between adjacent powder particles, and/or increasing the interparticle friction between the build material powder particles to enhance the structural strength of the as-built article during a thermal treatment over at least a part of the temperature range which has as its low end the temperature at which the structural strength due to the binder becomes insubstantial and as its high end the temperature at which the structural strength due to interparticle sintering of the build material powder becomes substantial, i.e., the article's debile temperature range. Green density improvements are achievable.

Abstract translation: 公开了利用包含载体流体，聚合物粘合剂和纳米颗粒的可印刷流体的三维印刷方法。 三维印刷方法可用于从建筑材料粉末制造制品，例如陶瓷，金属，金属合金或金属间金属粉末。 纳米颗粒使得构建材料粉末颗粒的低温颗粒间粘合，例如通过在相邻的粉末颗粒之间形成桥接键和/或增加构建材料粉末颗粒之间的颗粒间摩擦，以增强构建的制品的结构强度 在至少一部分温度范围内进行热处理，该温度范围的低端是由于粘合剂引起的结构强度变得不实际的温度，并且由于其高端，由于构件的颗粒间烧结而引起的结构强度的温度 材料粉末变得很大，即物品的不良温度范围。 可实现绿色密度改进。

公开(公告)号：US20180236686A9

公开(公告)日：2018-08-23

申请号：US14025343

申请日：2013-09-12

Applicant: The ExOne Company

Inventor： John A. Bai ,  Kevin D. Creehan ,  Howard A. Kuhn

IPC: B28B1/00 ,  B29C67/00

CPC classification number: B28B1/001 ,  B22F1/0018 ,  B22F3/008 ,  B22F2998/10 ,  B29C64/165 ,  B29K2031/04 ,  B29K2039/06 ,  B29K2105/0005 ,  B29K2105/251 ,  B29K2303/04 ,  B29K2303/06 ,  B33Y10/00 ,  B33Y30/00 ,  C04B35/01 ,  C04B35/053 ,  C04B35/111 ,  C04B35/14 ,  C04B35/26 ,  C04B35/453 ,  C04B35/457 ,  C04B35/46 ,  C04B35/486 ,  C04B35/505 ,  C04B35/528 ,  C04B35/5626 ,  C04B35/565 ,  C04B35/581 ,  C04B35/584 ,  C04B35/632 ,  C04B35/634 ,  C04B2235/6026 ,  B22F3/1017

Abstract: Three-dimensional printing processes are disclosed which utilize printable fluids comprising a carrier fluid, a polymeric binder, and nanoparticles. The three-dimensional printing processes are useful for making articles from a build material powder, e.g., a ceramic, metal, metal alloy, or intermetallic powder. The nanoparticles enable low temperature interparticle bonding of the build material powder particles, e.g., by forming bridging bonds between adjacent powder particles, and/or increasing the interparticle friction between the build material powder particles to enhance the structural strength of the as-built article during a thermal treatment over at least a part of the temperature range which has as its low end the temperature at which the structural strength due to the binder becomes insubstantial and as its high end the temperature at which the structural strength due to interparticle sintering of the build material powder becomes substantial, i.e., the article's debile temperature range. Green density improvements are achievable.