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 actuator for a casting mold for producing a metal component has at least two electrodes in contact with the metal melt for generating a local, pulsing electric field in a metal melt present in the casting mold and for introducing a pulsing current into the metal melt.

An actuator for a casting mold for producing a metal component has at least two electrodes in contact with the metal melt for generating a local, pulsing electric field in a metal melt present in the casting mold and for introducing a pulsing current into the metal melt.

A method of fabricating a low alloy steel ingot, the method including a) melting all or part of an electrode by a vacuum arc remelting method, the electrode, before melting, including iron and carbon, the melted portion of the electrode being collected in a crucible, thus forming a melt pool within the crucible; and b) solidifying the melt pool by heat exchange between the melt pool and a cooling fluid, the heat exchange applied serving to impose a mean solidification speed during step b) that is less than or equal to 45 μm/s and to obtain an ingot of low alloy steel.

A method of fabricating a low alloy steel ingot, the method including a) melting all or part of an electrode by a vacuum arc remelting method, the electrode, before melting, including iron and carbon, the melted portion of the electrode being collected in a crucible, thus forming a melt pool within the crucible; and b) solidifying the melt pool by heat exchange between the melt pool and a cooling fluid, the heat exchange applied serving to impose a mean solidification speed during step b) that is less than or equal to 45 μm/s and to obtain an ingot of low alloy steel.

Process control of intense stirring along a solidification front and adjustments in casting speeds during direct chill casting of 7xxx series alloys can decrease an ingot’s cracking susceptibility. Intense stirring control is used to reduce the thickness of the solidification front, promote agglomeration of hydrogen gas rejected at the solidification front, remove impurities rejected at the solidification front, and improve grain size. Intense stirring control is used to operate at faster casting speeds without risk of increasing the thickness of the solidification front. Optional reheating during casting to promote dispersoid formation is used to generate a high-strength zone of dispersoid-strengthened solidified metal in the outer periphery of the ingot, which can further decrease the ingot’s susceptibility to cracking.

Process control of intense stirring along a solidification front and adjustments in casting speeds during direct chill casting of 7xxx series alloys can decrease an ingot’s cracking susceptibility. Intense stirring control is used to reduce the thickness of the solidification front, promote agglomeration of hydrogen gas rejected at the solidification front, remove impurities rejected at the solidification front, and improve grain size. Intense stirring control is used to operate at faster casting speeds without risk of increasing the thickness of the solidification front. Optional reheating during casting to promote dispersoid formation is used to generate a high-strength zone of dispersoid-strengthened solidified metal in the outer periphery of the ingot, which can further decrease the ingot’s susceptibility to cracking.

Apparatus and methods for stirring a molten metal are provided. The apparatus comprising: two or more discrete units, each unit including a core being provided with two or more teeth, the core being provided with at least one electrically conducting coils; in use, mounting a first discrete unit in proximity to the container at a first location; in use, mounting a second discrete unit in proximity to the container at a second location; electrical connections between the two or more discrete units and a common control unit, thereby providing an electromagnetic stirrer. The apparatus format allows the discrete units to be position between different pairs of elements or parts of furnaces and the like to allow retrofitting of electromagnetic stirring where access is restricted.

Apparatus and methods for stirring a molten metal are provided. The apparatus comprising: two or more discrete units, each unit including a core being provided with two or more teeth, the core being provided with at least one electrically conducting coils; in use, mounting a first discrete unit in proximity to the container at a first location; in use, mounting a second discrete unit in proximity to the container at a second location; electrical connections between the two or more discrete units and a common control unit, thereby providing an electromagnetic stirrer. The apparatus format allows the discrete units to be position between different pairs of elements or parts of furnaces and the like to allow retrofitting of electromagnetic stirring where access is restricted.