A method of manufacturing an external breast prosthesis (12), includes the steps of providing a 3D image of the breast prosthesis, forming the breast prosthesis using an additive manufacturing process, in which additive manufacturing process the breast prosthesis is made by forming a structure of a thermoplastic elastomer, the structure corresponding to the 3D image of the breast prosthesis, wherein the structure is a reticulated solid foam.

The invention relates to a method of additive manufacturing an object using a 3D printing apparatus, in which at least one layer or part of at least one layer is formed by an addition-crosslinking electro-conductive silicone composition comprising : (A) at least one organopolysiloxane compound A comprising, per molecule at least two C.sub.2- C.sub.6 alkenyl radicals bonded to silicon atoms, (B) at least one organohydrogenopolysiloxane compound B comprising, per molecule, at least two hydrogen atoms bonded to an identical or different silicon atom, (C) at least one catalyst C comprising at least one metal from the platinum group or the compound thereof, (D) at least one reinforcing silica filler D, (E) at least one thixotropic agent which is selected from compounds having epoxy group, (poly)ether group, and/or (poly)ester group, organopolysiloxane having an aryl group and mixtures thereof; (F) at least one electro-conductive filler F, which is selected from nickel coated carbon, preferably graphite, graphene or mixtures thereof; (G) optionally at least one crosslinking inhibitor G.

Provided is a method for manufacturing an exterior case for a hot-water unit, used to house hot-water equipment for generating or storing hot water inside. The method includes a step combining an inkjet printing step for forming an inkjet printing layer by applying inkjet printing to the outer surface of a component of the exterior case and a curing step for curing the inkjet printing layer, in which the inkjet printing step and the curing step are repeated a plurality of times at the same location to form a thick printing portion in which the plurality of inkjet printing layers are laminated in an overlaid state.

A photo-curable resin composition for three-dimensional shaping including: a resin component (A) containing a (meth)acrylate compound (A1) represented by General Formula (1)

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(where R.sub.1 is a hydrogen atom or a methyl group, and R.sub.2 is a linear, branched, or cyclic trivalent hydrocarbon group with one to eight carbon atoms which may have three or less heteroatoms), and a urethane (meth)acrylate compound (A2) having two or more radical-polymerizable functional groups; inorganic particles (B); and a photoradical polymerization initiator (C). 40% by mass or more and 90% by mass or less of the (meth)acrylate compound (A1) is contained in the resin component (A). 10% by mass or more and 60% by mass or less of the urethane (meth)acrylate compound (A2) is contained in the resin component (A).

A photo-curable resin composition for three-dimensional shaping including: a resin component (A) containing a (meth)acrylate compound (A1) represented by General Formula (1)

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(where R.sub.1 is a hydrogen atom or a methyl group, and R.sub.2 is a linear, branched, or cyclic trivalent hydrocarbon group with one to eight carbon atoms which may have three or less heteroatoms), and a urethane (meth)acrylate compound (A2) having two or more radical-polymerizable functional groups; inorganic particles (B); and a photoradical polymerization initiator (C). 40% by mass or more and 90% by mass or less of the (meth)acrylate compound (A1) is contained in the resin component (A). 10% by mass or more and 60% by mass or less of the urethane (meth)acrylate compound (A2) is contained in the resin component (A).

A method of forming a consolidated component having a complex shape includes providing a first component having a first shape similar to the complex shape. The method further includes placing the first component in a chamber and surrounding the first component with a medium. The method further includes applying pressure and at least one of heat or electricity into the chamber to process the first component to form a consolidated component having the complex shape.

A rocket engine section includes a combustion chamber body having an inner wall and a channel carrying a cooling medium extending outside and along the inner wall. The rocket engine section further comprises a porous portion integrally formed with the inner wall and integral with the inner wall and adapted to allow the cooling medium carried in the channel to pass from the channel to the interior of the combustion chamber body. A porosity of the porous portion determines a volume flow rate and/or mass flow rate of the cooling medium let through into the interior of the combustion chamber body.

A rocket engine section includes a combustion chamber body having an inner wall and a channel carrying a cooling medium extending outside and along the inner wall. The rocket engine section further comprises a porous portion integrally formed with the inner wall and integral with the inner wall and adapted to allow the cooling medium carried in the channel to pass from the channel to the interior of the combustion chamber body. A porosity of the porous portion determines a volume flow rate and/or mass flow rate of the cooling medium let through into the interior of the combustion chamber body.

Functionally graded materials may comprise a graded volume extending between a tungsten-based structure and a steel-based structure, where the graded volume comprises a plurality of additively manufactured layers. At least one of the plurality of additively manufactured layers may comprise a ternary element selected from vanadium and chromium. Some of the additively manufactured layers may further comprise aluminum.

Functionally graded materials may comprise a graded volume extending between a tungsten-based structure and a steel-based structure, where the graded volume comprises a plurality of additively manufactured layers. At least one of the plurality of additively manufactured layers may comprise a ternary element selected from vanadium and chromium. Some of the additively manufactured layers may further comprise aluminum.