B29K2505/00

Slot die additive manufacturing apparatus and manufacturing method

An apparatus is provided which extrudes a radiation-curable construction material above a support surface with a slot die to deposit a layer of extruded construction material above the support surface. Radiation is selectively projected with a projection unit to a construction region between the support surface and the slot die, thereby curing portions of the extruded construction material. The apparatus repeats these steps are repeated until a desired object is formed by the contiguous cured portions of the construction material extending across and between the layers.

Mold assembly for injection molding

Disclosed is a mold assembly comprising: a cavity forming an inner space to be filled with resin containing metallic particles, and having a protruding part corresponding to a hole of a molded object; a first gate disposed at any one side of the cavity so as to inject the resin into the inner space; and a second gate disposed at another side of the cavity, and injecting the resin, which flows in a second direction intersecting with a first direction, into the inner space so as to change the arrangement of the metallic particles such that a weld line, formed according to the orientation of metallic particle in the first direction, is blurred in an area at which the flow of the resin is separated by the protruding part and then comes back together.

Metal shaped article production method

A metal shaped article production method includes a shaping data input step, a step of forming a constituent material layer using a constituent material, a step of forming a support material layer using a support material, a step of cutting a cut face in the constituent material layer of a stacked body formed by performing the constituent material layer forming step and the support material layer forming step, a step of degreasing a thermoplastic resin contained in the stacked body for which the cut face cutting step was performed, and a step of sintering metal particles by heating the stacked body, wherein in the support material layer forming step, the support material layer is formed so that a support face comes into contact with a face to be supported at an opposite side to the cut face at a position of the constituent material layer based on the shaping data.

Method of making a fiber reinforced energetic composite

A method of making a fiber reinforced energetic composite is provided. The method includes providing a mold or mandrel defining a shape for the fiber reinforced energetic composite, providing an impregnated fiber layup over the mold or mandrel, and curing the impregnated fiber layup. The impregnated fiber layup includes a fiber layup and polymer resin, the fiber layup formed from a plurality of reinforcing fiber layers and an energetic polymer nanocomposite disposed adjacent one or more of the reinforcing fiber layers with the polymer resin impregnated within the reinforcing fiber layers. The energetic polymer nanocomposite includes core-shell nanoparticles entrained in a thermoplastic polymer matrix where the core-shell nanoparticles include a core made of metal and at least one shell layer made of metal oxide disposed on the core or a core made of metal oxide and at least one shell layer made of metal disposed on the core.

RESIN COMPOSITE

The resin composite of the present invention has a polyamide-based resin expanded sheet, and a fiber-reinforced resin layer integrally laminated on a surface of the polyamide-based resin expanded sheet.

Strain sensor placement

A method for measuring strain of a component includes determining a preferred placement for a strain sensor on the component, and a preferred feature dimension and orientation for the strain sensor at the preferred placement on the component; and printing the strain sensor at the preferred placement on the component with the preferred feature dimension and orientation.

Debinder for 3D printed objects
11235386 · 2022-02-01 · ·

A debinder provides for debinding printed green parts in an additive manufacturing system. The debinder can include a storage chamber, a process chamber, a distill chamber, a waste chamber, and a condenser. The storage chamber stores a liquid solvent for debinding the green part. The process chamber debinds the green part using a volume of the liquid solvent transferred from the storage chamber. The distill chamber collects a solution drained from the process chamber and produces a solvent vapor from the solution. The condenser condenses the solvent vapor to the liquid solvent and transfer the liquid solvent to the storage chamber. The waste chamber collects a waste component of the solution.

Additive manufacturing with magnetic manipulation

Described are techniques for additive manufacturing with magnetic manipulation. The techniques including a method comprising performing additive manufacturing using a material containing a ferromagnetic additive to create a component. The method further comprises, during the additive manufacturing, generating a magnetic field near a portion the component, where the magnetic field causes the portion of the component to deform during the additive manufacturing based on the material containing the ferromagnetic additive.

Composites with thermoplastic epoxy polymeric phase, articles such as carriers made therewith and associated methods
11248096 · 2022-02-15 · ·

A structural reinforcement for an article including a carrier (10) that includes: (i) a mass of polymeric material (12) having an outer surface; and (ii) at least one fibrous composite Insert (14) or overlay (980) having an outer surface and including at least one elongated fiber arrangement (e.g., having a plurality of ordered fibers). The fibrous Insert (14) or overlay (980) is envisioned to adjoin the mass of the polymeric material in a predetermined location for carrying a predetermined load that Is subjected upon the predetermined location (thereby effectively providing localized reinforcement to that predetermined location). The fibrous insert (14) or overlay (980) and the mass of polymeric material (12) are of compatible materials, structures or both, for allowing the fibrous insert or overlay to be at least partially joined to the mass of the polymeric material. Disposed upon at least a portion of the carrier (10) may be a mass of activatable material (126). The fibrous insert (14) or overlay (980) may include a polymeric matrix that includes a thermoplastic epoxy.

EXTREMELY LOW ODOR STYRENIC POLYMER COMPOSITION
20220041854 · 2022-02-10 ·

Disclosed are vinylidene substituted aromatic polymers which include a zinc salt. Disclosed is a method of reducing the total volatile organic components in a vinylidene substituted aromatic polymer. Disclosed is a method of making vinylidene substituted aromatic polymers which include a zinc salt. Disclosed is a masterbatch which includes a styrenic polymer, a zinc salt and optionally a pigment and methods of making the masterbatch. The masterbatch may be used in a method making a styrenic polymer molded part.