A metal porous material according to an aspect of the present disclosure is a metal porous material in sheet form that includes a frame having a three-dimensional network configuration, wherein the frame includes an alloy including at least nickel (Ni) and chromium (Cr), the frame 11 is a solid solution with iron (Fe), the frame includes a chromium oxide (Cr.sub.2O.sub.3) layer as an outermost layer and includes a chromium carbide layer located under the chromium oxide layer, the chromium oxide layer has a thickness not less than 0.1 μm and not more than 3 μm, and the chromium carbide layer has a thickness not less than 0.1 μm and not more than 1 μm.

A metal porous material according to an aspect of the present disclosure is a metal porous material in sheet form that includes a frame having a three-dimensional network configuration, wherein the frame includes an alloy including at least nickel (Ni) and chromium (Cr), the frame 11 is a solid solution with iron (Fe), the frame includes a chromium oxide (Cr.sub.2O.sub.3) layer as an outermost layer and includes a chromium carbide layer located under the chromium oxide layer, the chromium oxide layer has a thickness not less than 0.1 μm and not more than 3 μm, and the chromium carbide layer has a thickness not less than 0.1 μm and not more than 1 μm.

A method of three-dimensional printing of target material can include filling a receptacle with a matrix suspension comprising a powder matrix suspended in a first liquid. A second suspension can be extruded into the matrix suspension, where the second suspension can include a target powder suspended in a second liquid.

A method of three-dimensional printing of target material can include filling a receptacle with a matrix suspension comprising a powder matrix suspended in a first liquid. A second suspension can be extruded into the matrix suspension, where the second suspension can include a target powder suspended in a second liquid.

A method for removing powder from a component or part produced by a powder bed additive manufacturing system is provided. The method includes providing a part, the part having at least one internal cavity with at least one external opening, the at least one cavity being at least partly filled with powder grains, the powder grains being connected to each other and to the walls of the cavity by mechanical, frictional, electrical, physical, or chemical forces. The method further includes adding medium in liquid phase to the at least one cavity of the part, the liquid having the property that it expands in phase transition from liquid to solid phase; transforming added medium to solid phase to loosen and break up at least a fraction of the powder grains connections from each other; and removing powder from the at least one internal cavity.

A method for removing powder from a component or part produced by a powder bed additive manufacturing system is provided. The method includes providing a part, the part having at least one internal cavity with at least one external opening, the at least one cavity being at least partly filled with powder grains, the powder grains being connected to each other and to the walls of the cavity by mechanical, frictional, electrical, physical, or chemical forces. The method further includes adding medium in liquid phase to the at least one cavity of the part, the liquid having the property that it expands in phase transition from liquid to solid phase; transforming added medium to solid phase to loosen and break up at least a fraction of the powder grains connections from each other; and removing powder from the at least one internal cavity.

The present invention relates to a method for removing powder from a component or part produced by a powder bed additive manufacturing system. The method comprises the steps; providing a part, the part having at least one internal cavity with at least one external opening, the at least one cavity being at least partly filled with powder grains, the powder grains being connected to each other and to the walls of the cavity by mechanical, frictional, electrical, physical or chemical forces; adding medium in liquid phase to the at least one cavity of the part, the liquid having the property that it expands in phase transition from liquid to solid phase; transforming added medium to solid phase to loosen and break up at least a fraction of the powder grains connections from each other; and removing powder from the at least one internal cavity.

The present invention relates to a method for removing powder from a component or part produced by a powder bed additive manufacturing system. The method comprises the steps; providing a part, the part having at least one internal cavity with at least one external opening, the at least one cavity being at least partly filled with powder grains, the powder grains being connected to each other and to the walls of the cavity by mechanical, frictional, electrical, physical or chemical forces; adding medium in liquid phase to the at least one cavity of the part, the liquid having the property that it expands in phase transition from liquid to solid phase; transforming added medium to solid phase to loosen and break up at least a fraction of the powder grains connections from each other; and removing powder from the at least one internal cavity.

A system for manufacturing three dimensional objects can include logic to detect, for at least one vessel, a moisture content level corresponding to a build material residing in the at least one vessel. The logic can also adjust a humidity level and a temperature of a gas and a conditioning agent applied to the at least one vessel, wherein the humidity level and the temperature are based on the moisture content level and a temperature of the build material residing in the at least one vessel. Additionally, the logic can initialize manufacturing a three dimensional object with the build material from the at least one vessel in response to detecting the moisture content level of the build material residing in the at least one vessel is within a predetermined range.

A system for manufacturing three dimensional objects can include logic to detect, for at least one vessel, a moisture content level corresponding to a build material residing in the at least one vessel. The logic can also adjust a humidity level and a temperature of a gas and a conditioning agent applied to the at least one vessel, wherein the humidity level and the temperature are based on the moisture content level and a temperature of the build material residing in the at least one vessel. Additionally, the logic can initialize manufacturing a three dimensional object with the build material from the at least one vessel in response to detecting the moisture content level of the build material residing in the at least one vessel is within a predetermined range.