Abstract: Magnesium alloys and a process of manufacturing an article using magnesium alloys. During additive manufacturing, where the magnesium alloy is being deposited in a layer-by-layer manner, solidification of the melted portion of a deposited layer is performed in such a way as to ensure that about 15 percent or more of the portion being solidified includes a non-equilibrium eutectic constituent. This in turn reduces the likelihood of encountering solidification conditions that otherwise would lead to hot tearing problems. Further, upon subsequent heat treatment of the solidified layer, the eutectic constituents that were used for hot tearing resistance are dissolved so that the solidified layer may be returned to a substantially single-phase magnesium matrix such that desirable material properties such as improved flammability point, improved corrosion resistance and one or more of high yield strength, ultimate tensile strength and elongation are promoted.

Abstract: A process for testing material samples comprises stressing samples under test by bending the samples with a bending fatigue system. During testing, an optical system takes images of the samples and cracks are identified in the samples using the images. Input variables and spatial variables for use in microstructure analysis of the images are determined and used to create a model. Based on the model, crack growth rates are predicted for untested microstructures based on the samples based on the analysis of the images.

Abstract: Images of samples that are illuminated with polarized light are captured. Azimuth and inclination data are extracted from the captured images. The azimuth and inclination data are used to quantify MTRs.

Abstract: Images of samples that are illuminated with polarized light are captured. Azimuth and inclination data are extracted from the captured images. The azimuth and inclination data are used to quantify MTRs.

Abstract: Images of samples that are illuminated with polarized light are captured. Azimuth and inclination data are extracted from the captured images. The azimuth and inclination data are used to quantify MTRs.

Abstract: Magnesium alloys and a process of manufacturing an article using magnesium alloys. During additive manufacturing, where the magnesium alloy is being deposited in a layer-by-layer manner, solidification of the melted portion of a deposited layer is performed in such a way as to ensure that about 15 percent or more of the portion being solidified includes a non-equilibrium eutectic constituent. This in turn reduces the likelihood of encountering solidification conditions that otherwise would lead to hot tearing problems. Further, upon subsequent heat treatment of the solidified layer, the eutectic constituents that were used for hot tearing resistance are dissolved so that the solidified layer may be returned to a substantially single-phase magnesium matrix such that desirable material properties such as improved flammability point, improved corrosion resistance and one or more of high yield strength, ultimate tensile strength and elongation are promoted.

Abstract: A system for additive manufacturing under generated force includes a mechanical arm, a build platform, a build platform controller, a material delivery system controller, a laser scan system, a laser scan system controller, a motor controller and a master controller. The master controller determines a location of the material delivered to the build platform. The master controller further calculates a rate of rotation of the build platform as a function of the location of the material delivered and a desired centrifugal acceleration. The master controller further calculates an adjustment factor to correlate a rotation of the laser scan system to a rotation of the mechanical arm as a function of the location of the material delivered and a calculated rate of rotation of the build platform.

Abstract: A hybrid manufacturing system comprises a workpiece platform, a heater, a material deposition system, a mechanical forming device, and a controller. The controller is operatively programmed to control the material deposition system to lay a track of material according to the three-dimensional representation of the object and control the mechanical forming device and the heater to apply mechanical force to a targeted portion of the object while the targeted portion of the object is maintained at a hot working temperature. The mechanical impact closes porosity of material within the targeted portion of the object, changes the microstructure within the targeted portion of the object, or both, and the mechanical impact causes a shape change within the targeted portion of the object. The controller still further computes a correction for a next track to be laid by the material deposition system based upon the shape change caused by the mechanical impact.

Abstract: Devices that use additively-manufactured connectible unit cells are described in which each unit cell comprises materials and voids. The materials occupy a certain volume of the unit cell with the voids occupying the balance of the volume. The unit cells form a lattice structure, which exhibits smooth transitions between each of the adjacent unit cells. The lattice structure exhibits periodicity along one (1), two (2), or all three (3) dimensions. The materials have a thickness that is a function of the material location within the device.

Abstract: Devices that use additively manufactured connectible unit cells are described in which each unit cell comprises materials and voids. The materials occupy a certain volume of the unit cell with the voids occupying the balance of the volume. The unit cells form a lattice structure, which exhibits smooth transitions between each of the adjacent unit cells. The lattice structure exhibits periodicity along one (1), two (2), or all three (3) dimensions. The materials have a thickness that is a function of the material location within the device.

Abstract: The present disclosure provides systems and processes for additive manufacturing under generated force. Briefly described, one embodiment of the system comprises a motor that applies a centrifugal acceleration to an additive manufacturing build platform, thereby generating a force at the build platform.

Abstract: Images of samples that are illuminated with polarized light are captured. Azimuth and inclination data are extracted from the captured images. The azimuth and inclination data are used to quantify MTRs.

Abstract: A hybrid manufacturing system comprises a workpiece platform, a heater, a material deposition system, a mechanical forming device, and a controller. The controller is operatively programmed to control the material deposition system to lay a track of material according to the three-dimensional representation of the object and control the mechanical forming device and the heater to apply mechanical force to a targeted portion of the object while the targeted portion of the object is maintained at a hot working temperature. The mechanical impact closes porosity of material within the targeted portion of the object, changes the microstructure within the targeted portion of the object, or both, and the mechanical impact causes a shape change within the targeted portion of the object. The controller still further computes a correction for a next track to be laid by the material deposition system based upon the shape change caused by the mechanical impact.

Abstract: A computer-implemented process is disclosed for securely transmitting a three-dimensional part file, e.g., to a parts manufacturer or storage location. A method is also provided for creating a three-dimensional part capable of integrity validation is provided. Also, a method is provided, for validating the integrity of a three-dimensional part in an additive manufacturing. Yet further, a method is provided for qualifying a part created by additive manufacturing. Moreover, systems are provided for carrying out one or more of the above.

Abstract: A computer-implemented process is disclosed for securely transmitting a three-dimensional part file, e.g., to a parts manufacturer or storage location. A method is also provided for creating a three-dimensional part capable of integrity validation is provided. Also, a method is provided, for validating the integrity of a three-dimensional part in an additive manufacturing. Yet further, a method is provided for qualifying a part created by additive manufacturing. Moreover, systems are provided for carrying out one or more of the above.

Abstract: According to aspects of the present disclosure, features of interest in materials are analyzed. The method comprises capturing a morphology of the feature of interest on a surface or an interior of a material under evaluation. The method also comprises selecting targeted spatial locations on the surface or the interior of the material under evaluation based upon the captured morphology. Also, the method comprises capturing information about the local state (e.g., crystallographic orientation) of the surface or the interior of the sample at the selected targeted spatial locations. Still further, the method comprises using the captured local state information to fill in the non-targeted spatial locations in the material corresponding to the captured morphology and or topology.

Abstract: According to aspects of the present disclosure, features of interest in materials are analyzed. The method comprises capturing a morphology of the feature of interest on a surface or an interior of a material under evaluation. The method also comprises selecting targeted spatial locations on the surface or the interior of the material under evaluation based upon the captured morphology. Also, the method comprises capturing information about the local state (e.g., crystallographic orientation) of the surface or the interior of the sample at the selected targeted spatial locations. Still further, the method comprises using the captured local state information to fill in the non-targeted spatial locations in the material corresponding to the captured morphology and or topology.