Methods of making metal objects are provided. These methods generally involve adding a metal powder slurry into a sacrificial mold, such as a mold made by three dimensional printing, and heating the slurry/mold mixture. The heating steps may include curing the slurry to make a green part inside the mold, debinding to burn off the mold and binder to make a brown part, sintering, and hot isostatic pressing. Metal products, such as aircraft engine parts, are also provided.

A laser beam is irradiated onto material powder on a manufacturing table to solidify the material powder and form a solidified layer. The material powder is further deposited on the solidified layer and the laser beam is irradiated onto one part of the material powder to solidify the material powder. They are repeated to manufacture a manufactured object. An irradiation output value of the laser beam is determined based on measurement information regarding a deposition surface before depositing the material powder or regarding a surface state of the material powder after deposition that is acquired by a camera. Alternatively, the aforementioned irradiation output value is determined based on parity information regarding a number of solidified layers that were already solidified by irradiation of the energy beam, or determined in accordance with an irradiation output value used when solidifying a solidified layer solidified prior to deposition of the deposited material powder.

A laser beam is irradiated onto material powder on a manufacturing table to solidify the material powder and form a solidified layer. The material powder is further deposited on the solidified layer and the laser beam is irradiated onto one part of the material powder to solidify the material powder. They are repeated to manufacture a manufactured object. An irradiation output value of the laser beam is determined based on measurement information regarding a deposition surface before depositing the material powder or regarding a surface state of the material powder after deposition that is acquired by a camera. Alternatively, the aforementioned irradiation output value is determined based on parity information regarding a number of solidified layers that were already solidified by irradiation of the energy beam, or determined in accordance with an irradiation output value used when solidifying a solidified layer solidified prior to deposition of the deposited material powder.

The invention relates to a cemented carbide composition producing method for precious metal, which includes a titanium nitride component contained therein and shows excellent workability, corrosion resistance, reduction in weight and other desirable mechanical properties, as well as the low amount of nickel used as a metallic binder and an aluminum oxide coating helps to suppress potential negative skin reactions.

The invention relates to a cemented carbide composition producing method for precious metal, which includes a titanium nitride component contained therein and shows excellent workability, corrosion resistance, reduction in weight and other desirable mechanical properties, as well as the low amount of nickel used as a metallic binder and an aluminum oxide coating helps to suppress potential negative skin reactions.

A method, computer system, and a computer program product for object modeling is provided. The present invention may include generating a temporary modeling structure based on at least a digital model and one or more printing preferences. The present invention may include sending printing instructions to a 3D printer based on the temporary modeling structure. The present invention may include receiving feedback from a sensory based system, the sensory based system monitoring a printing chamber of the 3D printer. The present invention may include updating the printing instructions based on an analysis of the feedback of the feedback received from the sensory based system.

A method, computer system, and a computer program product for object modeling is provided. The present invention may include generating a temporary modeling structure based on at least a digital model and one or more printing preferences. The present invention may include sending printing instructions to a 3D printer based on the temporary modeling structure. The present invention may include receiving feedback from a sensory based system, the sensory based system monitoring a printing chamber of the 3D printer. The present invention may include updating the printing instructions based on an analysis of the feedback of the feedback received from the sensory based system.

An object of the present invention is to provide an electrically conductive paste and a sintered body thereof having a low electric resistance value and excellent electrical conductivity when made into a sintered body. An electrically conductive paste comprising: a flake-like silver powder having a median diameter D50 of 15 μm or less; a silver powder having a median diameter D50 of 25 μm or more; and a solvent, wherein the content of the flake-like silver powder is 15 to 70 parts by mass and the content of the silver powder having a median diameter D50 of 25 μm or more is 30 to 85 parts by mass based on 100 parts by mass in total of the flake-like silver powder and the silver powder having a median diameter D50 of 25 μm or more.

An object of the present invention is to provide an electrically conductive paste and a sintered body thereof having a low electric resistance value and excellent electrical conductivity when made into a sintered body. An electrically conductive paste comprising: a flake-like silver powder having a median diameter D50 of 15 μm or less; a silver powder having a median diameter D50 of 25 μm or more; and a solvent, wherein the content of the flake-like silver powder is 15 to 70 parts by mass and the content of the silver powder having a median diameter D50 of 25 μm or more is 30 to 85 parts by mass based on 100 parts by mass in total of the flake-like silver powder and the silver powder having a median diameter D50 of 25 μm or more.

In one example, a 3D printing system includes a support structure generator to identify a breakaway support to temporarily support part of the object, to design a wedge shaped groove between a portion of the object and the support, the groove ending at a line along which the support intersects the object, and to generate a digital object model that includes the support and the groove. The system also includes a 3D printer to print the object, support and groove based on the object model.