A process for removing metallic support structures, sinter cakes and/or discharge lugs on an additively manufactured metal component, wherein the metal component is treated electrolytically in an acidic electrolyte, the metal component being operated as an anode for a defined period of time, wherein, during the defined period of time, a higher voltage and then a lower voltage or a higher current density and then a lower current density are alternately applied to the metal component multiple times.

Methods for the fabrication of metal strain wave gear flexsplines using a specialized metal additive manufacturing technique are provided. The method allows the entire flexspline to be metal printed, including all the components: the output surface with mating features, the thin wall of the cup, and the teeth integral to the flexspline. The flexspline may be used directly upon removal from the building tray.

Methods for the fabrication of metal strain wave gear flexsplines using a specialized metal additive manufacturing technique are provided. The method allows the entire flexspline to be metal printed, including all the components: the output surface with mating features, the thin wall of the cup, and the teeth integral to the flexspline. The flexspline may be used directly upon removal from the building tray.

A method for electrochemical machining of a metallic article formed by additive manufacturing includes obtaining or producing the metallic article. The metallic article includes an interior surface and a geometry. The method further includes inserting a flexible, metallic cathode tube into the article. The metallic cathode is spaced apart from the interior surface of the article, and the metallic cathode tube is inserted so as to conform to the geometry of the article. Still further, the method includes introducing an electrolyte fluid into the metallic cathode tube and the interior surface of the article and electrochemical machining the metallic article by applying a voltage across the cathode tube and the metallic article, the metallic article functioning as an anode.

A method for electrochemical machining of a metallic article formed by additive manufacturing includes obtaining or producing the metallic article. The metallic article includes an interior surface and a geometry. The method further includes inserting a flexible, metallic cathode tube into the article. The metallic cathode is spaced apart from the interior surface of the article, and the metallic cathode tube is inserted so as to conform to the geometry of the article. Still further, the method includes introducing an electrolyte fluid into the metallic cathode tube and the interior surface of the article and electrochemical machining the metallic article by applying a voltage across the cathode tube and the metallic article, the metallic article functioning as an anode.

Embodiments of the present disclosure provide a method of manufacturing a metal column using 3D printing technology. The method of manufacturing a metal column includes steps of: creasing a 3D-CAD design for printing the metal column; printing the metal column; pretreating the inner surface of a channel inside the metal column at low temperature; and coating the inner surface of the channel with a stationary phase so that the metal column is capable of separating a gas mixture into components.

Embodiments of the present disclosure provide a method of manufacturing a metal column using 3D printing technology. The method of manufacturing a metal column includes steps of: creasing a 3D-CAD design for printing the metal column; printing the metal column; pretreating the inner surface of a channel inside the metal column at low temperature; and coating the inner surface of the channel with a stationary phase so that the metal column is capable of separating a gas mixture into components.

A metal member includes a base and a mesh structure arranged on the base. The mesh structure includes a plurality of three-dimensional unit cell structures coupled together in an orderly manner. Each unit cell structure includes at least one first node. The plurality of unit cell structures is coupled together by the at least one first node.

Process for manufacturing a copper part comprising at least the following successive steps: shaping a part by stereolithography, the shaping being carried out by: forming a layer of paste comprising a powder of copper particles, one or more photopolymerizable precursors of a first resin, a photoinitiator and, optionally, an optical additive, photopolymerizing the photopolymerizable precursor(s) of the first resin, the steps and forming a cycle that can be repeated a plurality of times, carrying out a first heat treatment, under an oxidizing atmosphere containing at least 10 vol % of an oxidizer, such as dioxygen, at a first temperature Td so as to eliminate the first resin, and carrying out a second heat treatment, under a reducing atmosphere, at a second temperature Tf, above the first temperature Td, so as to sinter the copper particles to obtain a copper part.

Methods and apparatuses for disassembling components are described. An apparatus in accordance with an aspect of the present disclosure comprises a first component including a first adhesive interface, a second component including a second adhesive interface, a joint between the first and second adhesive interfaces, the joint comprising an adhesive bonding to the first adhesive interface and to the second adhesive interface, such that the first component and the second component are joined together, and at least one thermal element in the adhesive, wherein the at least one thermal element is configured to weaken the joint by heating the adhesive when an energy is applied to the thermal element.