Abstract: An indicia or marker is embedded in an object that includes a plurality of layers of material such as in an object formed by additive manufacture by forming at least one layer of a prism in a layer of the object, wherein the layer of the prism includes an aperture in the form of an identifier. The prism is densified to a density distinct from that of the remainder of the object. The aperture in the layer of the prism is filled with a powder material; a portion of which is preferably densified to a density distinct from that of the object and/or the prism, leaving a margin to prevent mixing of the materials of the object, prism and/or identifier during densification.

Abstract: In a quality certification method, a digital, three-dimensional Quality Certificate (3DQC) is created by the manufacturer and is delivered to the customer along with the manufactured part. The data in the 3DQC can be viewed using a three-dimensional rendering system, such that the customer that review and confirm that certain process monitor values were within specification during the entire manufacturing process.

Abstract: Powder bed fusion systems, apparatus, and processes for the production of multi-material parts are provided, in which the material composition varies throughout the part, including different regions within a particular layer. Present embodiments include the capability to selectively deliver fusion-inducing energy over the part bed as each layer of the part is made, rather than uniformly over the part bed.

Abstract: Powder bed fusion systems, apparatus, and processes for the production of multi-material parts are provided, in which the material composition varies throughout the part, including different regions within a particular layer. Present embodiments include the capability to selectively deliver fusion-inducing energy over the part bed as each layer of the part is made, rather than uniformly over the part bed, and include those wherein a digital light processing (DLP) projector interfaces with the thermal source to direct the application of energy from the thermal source.

Abstract: A method of separating an immiscible lubricant from a liquid refrigerant in a refrigerating system including a compressor, a condenser, an expansion device and an evaporator, wherein the expansion device is connected to the condenser by a liquid refrigerant flow line for liquid refrigerant and immiscible lubricant. The method comprising slowing the rate of flow of the liquid refrigerant and immiscible lubricant between the condenser and the expansion device such that the liquid refrigerant and the immiscible lubricant separate based upon differences in density. The method also comprises collecting the separated immiscible lubricant in a collection chamber in fluid communication with the separated immiscible lubricant. Apparatus for performing the method is also disclosed.

Abstract: A method of separating an immiscible lubricant from a liquid refrigerant in a refrigerating system including a compressor, a condenser, an expansion device and an evaporator, wherein the expansion device is connected to the condenser by a liquid refrigerant flow line for liquid refrigerant and immiscible lubricant. The method comprising slowing the rate of flow of the liquid refrigerant and immiscible lubricant between the condenser and the expansion device such that the liquid refrigerant and the immiscible lubricant separate based upon differences in density. The method also comprises collecting the separated immiscible lubricant in a collection chamber in fluid communication with the separated immiscible lubricant. Apparatus for performing the method is also disclosed.

Abstract: This refrigerant filter-drier core is molded from a permeable matrix which includes desiccant particles, a binder and reinforcing fibers, the fibers being fixed in place by the binder and being effective to impart strength and permeability to the filter-drier core.