Disclosed is a 3D printer with a build platform configured to quickly and easily release a build object with no damage to the object. The build platform comprises a rigid frame; an adhesion surface configured to detachably attach to the upper side of the rigid frame; and rack assembly configured to attach to the bottom side of the rigid frame. The rigid frame includes a substantially planar plate of steel, while the adhesion surface comprises a flexible sheet material with an inherent concave curvature with the center biased toward the steel plate. Sets of clips and tabs integral to either the rigid frame or adhesion surface may be employed to releasable lock the frame and adhesion surface together. Sets of protrusions and dimples integral to either the rigid frame or adhesion surface may be employed to releasable lock the frame and adhesion surface together. To release a printed object, the user need only detach the adhesion surface from the rigid frame, and then twist the adhesion surface.

The invention relates to a method for manufacturing a part made from composite material, having a body and one or more continuous fibre bundles in its interior, characterised in that it comprises the stages of: a) obtaining a body that includes one or more tubular cavities in its interior that extend between a first end, disposed on the outer surface of the body and which comprises an inlet orifice, and a second end, opposite to the first end; b) introducing resin in the liquid state and a continuous fibre bundle in the interior of at least one tubular cavity through its inlet orifice; and c) curing the resin until it solidifies, adhering to the body and fixing the continuous fibre bundle. The invention also relates to a system for manufacturing a part made from composite material and to the part made from composite material obtained.

This present disclosure relates to durable polymers blends comprising a polyamide polymer, a polyester polymer, and an epoxy-based compatibilizer. The present disclosure further relates to devices, processes, methods and uses involving such polymers.

The invention relates to a composite material filament having rheological characteristics suitable for use in additive manufacturing by extrusion, a method for manufacturing a three-dimensional composite product with an additive manufacturing system from a filament of such composite material, and to a three-dimensional composite product obtained by an additive manufacturing system using such composite material. The filament is formed of material comprising semi-crystalline polylactic acid and chemical pulp of wood-based cellulose fibres, wherein the amount of chemical pulp of wood-based cellulose fibres is selected such that sufficient complex viscosity is obtained at melt state, such that upon additive manufacturing by extrusion, composite melt formed of the filament has a ratio of shear storage modulus to shear loss modulus G′/G″ equal to or higher than 1.0 at a temperature equal to or higher than 133° C.

A ultrasonic welding method of joining dissimilar-material workpieces, such as sheet materials, and the joined components formed thereby. The method includes applying ultrasonic energy to a thermoplastic piece to fill a hole of a dissimilar piece to form a weld point that is made up with polymer from the thermoplastic piece. In general, the geometry of the thermoplastic piece is not altered during the process. The dissimilar piece generally has a higher melting temperate and can be metal, thermoset polymers, or other thermoplastic material. The welded pieces can be arranged in a lap, laminate, or double lap configuration. In some embodiments, the hole of the dissimilar sheet material includes undercut features that improve the mechanical interlock between the dissimilar pieces. In some embodiments, the weld point has a mushroom cap to improve mechanical interlock.

A ultrasonic welding method of joining dissimilar-material workpieces, such as sheet materials, and the joined components formed thereby. The method includes applying ultrasonic energy to a thermoplastic piece to fill a hole of a dissimilar piece to form a weld point that is made up with polymer from the thermoplastic piece. In general, the geometry of the thermoplastic piece is not altered during the process. The dissimilar piece generally has a higher melting temperate and can be metal, thermoset polymers, or other thermoplastic material. The welded pieces can be arranged in a lap, laminate, or double lap configuration. In some embodiments, the hole of the dissimilar sheet material includes undercut features that improve the mechanical interlock between the dissimilar pieces. In some embodiments, the weld point has a mushroom cap to improve mechanical interlock.

The present invention relates to the use of pheromones having a high degree of purity to manufacture plastic diffusers containing an insect pheromone filler and having stiffness and fracture-resistant properties that can be used in the tensile or compressive field. The invention also relates to a method for manufacturing said articles by means of injection.

A faux leather biomaterial is disclosed. It may be made from shell seafood waste and coffee grounds with the aim to work as a sustainable alternative instead of prior art faux and animal leathers.

A process for injection molded microcellular foaming various flexible foam compositions from biodegradable and industrially compostable bio-derived thermoplastic resins for use in, for example, footwear components, seating components, protective gear components, and watersport accessories wherein a process of manufacturing includes the steps of: producing a suitable thermoplastic biopolymer or biopolymer blend; injection molding the thermoplastic biopolymer or biopolymer blend into a suitable mold shape with inert nitrogen gas; controlling the polymer melt, pressure, temperature, and time such that a desirable flexible foam is formed; and utilizing gas counterpressure in the injection molding process to ensure the optimal foam structure with the least amount of cosmetic defects and little to no plastic skin on the outside of the foamed structure.

A method for producing a thermoformed product on a single machine with several stations and with different tools includes the following steps: (a) melting and homogenizing plastic granules and providing the plastic melt at a preform station; (b) producing a preform at the preform station in a preform cavity; (c) transferring the preform by a transfer carrier to a thermoforming station at the same machine, the thermoforming station having a thermoforming tool having a thermoforming cavity; (d) preferably heating the preform during the transfer; (e) thermoforming of the thermoformed product in the thermoforming cavity. Advantageously, the final thermoformed product is produced directly from the plastic granules using only a single machine, and in particular without any waste, when the preform is dimensioned in such a way that it does not present any excess with respect to the final shape of the product to be produced.