An aluminum alloy material comprising a composition containing no less than 1.2 at % and no more than 6.5 at % of Fe, no less than 0.15 at % and no more than 5 at % of at least one first element selected from the group consisting of Nd, W, and Sc, and no less than 0.005 at % and no more than 2 at % of at least one second element selected from the group consisting of C and B, the balance being Al and inevitable impurities.

A three-dimensional shaping device includes: a plasticizing unit; a nozzle configured to dispense a plasticized material from a nozzle opening toward a stage; a dispensing amount adjustment unit configured to communicate with the nozzle opening, be provided in a flow path through which the plasticized material flows, and adjust a dispensing amount of the plasticized material from the nozzle opening by changing an area of an opening formed in the flow path; a pressure adjustment unit configured to adjust pressure of the flow path through a branch flow path coupled to the flow path between the dispensing amount adjustment unit and the nozzle opening; and a control unit configured to control the dispensing amount adjustment unit and the pressure adjustment unit. When the control unit changes the dispensing amount from a first dispensing amount to a second dispensing amount, the control unit controls the dispensing amount adjustment unit to change the area of the opening, and then controls the pressure adjustment unit to adjust the pressure of the flow path. The second dispensing amount is a dispensing amount when the plasticized material is dispensed from the nozzle opening.

A three-dimensional shaping device includes: a plasticizing unit; a nozzle configured to dispense a plasticized material from a nozzle opening toward a stage; a dispensing amount adjustment unit configured to communicate with the nozzle opening, be provided in a flow path through which the plasticized material flows, and adjust a dispensing amount of the plasticized material from the nozzle opening by changing an area of an opening formed in the flow path; a pressure adjustment unit configured to adjust pressure of the flow path through a branch flow path coupled to the flow path between the dispensing amount adjustment unit and the nozzle opening; and a control unit configured to control the dispensing amount adjustment unit and the pressure adjustment unit. When the control unit changes the dispensing amount from a first dispensing amount to a second dispensing amount, the control unit controls the dispensing amount adjustment unit to change the area of the opening, and then controls the pressure adjustment unit to adjust the pressure of the flow path. The second dispensing amount is a dispensing amount when the plasticized material is dispensed from the nozzle opening.

A method for manufacturing a three-dimensional shaped object includes a first step of receiving a selection of a shaping mode for the three-dimensional shaped object, a second step of generating, based on the received shaping mode, shaping data for shaping the three-dimensional shaped object, and a third step of shaping the three-dimensional shaped object based on the shaping data, in which the third step includes a step of controlling a discharge adjusting unit configured to adjust a discharge amount of a shaping material from a nozzle, and the number of times the discharge adjusting unit is controlled in the third step is different depending on the shaping mode received in the first step.

A method for manufacturing a three-dimensional shaped object includes a first step of receiving a selection of a shaping mode for the three-dimensional shaped object, a second step of generating, based on the received shaping mode, shaping data for shaping the three-dimensional shaped object, and a third step of shaping the three-dimensional shaped object based on the shaping data, in which the third step includes a step of controlling a discharge adjusting unit configured to adjust a discharge amount of a shaping material from a nozzle, and the number of times the discharge adjusting unit is controlled in the third step is different depending on the shaping mode received in the first step.

A process for forming extruded products using a device having a scroll face configured to apply a rotational shearing force and an axial extrusion force to the same preselected location on material wherein a combination of the rotational shearing force and the axial extrusion force upon the same location cause a portion of the material to plasticize, flow and recombine in desired configurations. This process provides for a significant number of advantages and industrial applications, including but not limited to extruding tubes used for vehicle components with 50 to 100 percent greater ductility and energy absorption over conventional extrusion technologies, while dramatically reducing manufacturing costs.

Systems and methods for removing an oxide layer in an additive manufacturing process are provided. A direct write machine may be used to create wire bonds for semiconductors. The direct write machine may deposit a conductive print material between bond pads to create interconnections. The bond pads may comprise aluminum and an aluminum oxide layer on an outer surface. The presence of an aluminum oxide layer may decrease the electrical connection between the wire bond and the aluminum substrate. To remove the aluminum oxide layer, an abrasive tool is provided to ultrasonically abrade the aluminum oxide layer while the conductive print material is being deposited. The conductive print material may include abrasive additives materials to further aid in abrading the aluminum oxide layer.

Systems and methods for removing an oxide layer in an additive manufacturing process are provided. A direct write machine may be used to create wire bonds for semiconductors. The direct write machine may deposit a conductive print material between bond pads to create interconnections. The bond pads may comprise aluminum and an aluminum oxide layer on an outer surface. The presence of an aluminum oxide layer may decrease the electrical connection between the wire bond and the aluminum substrate. To remove the aluminum oxide layer, an abrasive tool is provided to ultrasonically abrade the aluminum oxide layer while the conductive print material is being deposited. The conductive print material may include abrasive additives materials to further aid in abrading the aluminum oxide layer.

It is provided an extruder for a system for the additive manufacture of freely formable metal parts with or without a supporting structure by means of an extrusion method from a composite material, which is arranged on a three-dimensionally movable kinematic mechanism, with a building platform. The extruder consists of a housing and a screw arranged in the housing. The extruder is provided with a mechanical drive for the composite material to be extruded, with an exchangeable nozzle, arranged on the housing, and the housing is connected to the mechanical drive by way of suitable means for transporting the composite material.

A DC high-voltage relay with at least one contact pair including a movable contact and a fixed contact, the contact pair having a contact force and/or an opening force of 100 gf or more, having a rated voltage of 48 V or more, the movable contact and/or the fixed contact includes a Ag oxide-based contact material. Metal components contain at least one metal M essentially containing Zn, and a balance being Ag and inevitable impurity metals, and the contact material has a content of the metal M of 0.2% by mass or more and 8% by mass or less based on a total mass. The contact material has a material structure in which one or more oxides of the metal M having an average particle size of 0.01 μm or more and 0.4 μm or less are dispersed in a matrix including Ag or a Ag alloy.