A method for vibroblasting surfaces using a vibroblasting machine, said vibroblasting machine being equipped with at least one toroidal shaped process vat (50) which is set in a rotary motion and is suitable for containing workpieces whose surfaces are subjected to a vibroblasting processing, said method including a phase of inputting fine particles belonging to a sandblasting media into said process vat (50) to proceed with a sandblasting action of the surfaces of the workpieces being processed, and a phase of evacuation of said fine particles, characterized in that the phase of inputting fine particles belonging to the sandblasting media into said process vat (50) occurs from top to bottom or tangentially to the circumference of said process vat (50) and to the surface of the vibrating mass (75) of the workpieces and of the media.

The present invention relates to a system (100) for automatically processing an additively manufactured part. The system comprises an inspection module (120) for determining at least one part parameter associated with a surface finish quality of the part, a processing module (118) for processing a surface of the part responsive to the at least one part parameter and controller (102) configured to modify a processing parameter of a surface finishing process, performed by the processing module, based on the at least one part parameter determined by the inspection module.

A method for additively manufacturing a textile sheet product and a three-dimensionally printed textile sheet product (1) are disclosed. The method includes the steps of creating a three-dimensional model of the pre-product and additively manufacturing the pre-product according to the three-dimensional model of the pre-product. In additive manufacturing, a production material is applied layer by layer in this case. At at least one predetermined crossover position of at least two fibrous structures (2a, 2b) and a separation layer material is applied which can be removed from the pre-product and/or inactivated.

A method for additively manufacturing a textile sheet product and a three-dimensionally printed textile sheet product (1) are disclosed. The method includes the steps of creating a three-dimensional model of the pre-product and additively manufacturing the pre-product according to the three-dimensional model of the pre-product. In additive manufacturing, a production material is applied layer by layer in this case. At at least one predetermined crossover position of at least two fibrous structures (2a, 2b) and a separation layer material is applied which can be removed from the pre-product and/or inactivated.

An invisible orthodontic device without an occlusal surface includes a medial surface and a lateral surface. The medial surface is a side surface adjacent to the tongue, and the lateral surface is a side surface adjacent to the cheek. One end of each of the medial surface and the lateral surface is connected through a top face, and other ends thereof are in an open state and include a wearing hole. Lateral sides of the medial surface and the lateral surface are connected through a connection face. The medial surface, the lateral surface, the top face and the connection face enclose to form an accommodation groove in the middle for accommodating teeth. The wearing hole is in communication with the accommodation groove, and the invisible orthodontic device can be worn on the teeth through the wearing hole. The invisible orthodontic device includes an anterior region and a molar region.

An invisible orthodontic device without an occlusal surface includes a medial surface and a lateral surface. The medial surface is a side surface adjacent to the tongue, and the lateral surface is a side surface adjacent to the cheek. One end of each of the medial surface and the lateral surface is connected through a top face, and other ends thereof are in an open state and include a wearing hole. Lateral sides of the medial surface and the lateral surface are connected through a connection face. The medial surface, the lateral surface, the top face and the connection face enclose to form an accommodation groove in the middle for accommodating teeth. The wearing hole is in communication with the accommodation groove, and the invisible orthodontic device can be worn on the teeth through the wearing hole. The invisible orthodontic device includes an anterior region and a molar region.

A process can be used for the surface treatment of three-dimensional objects which have been produced in additive manufacturing processes from at least one polymer. The process involves a) immersing the three-dimensional object in a substance mixture A, b) leaving the three-dimensional object in the substance mixture A for a time, and c) removing the three-dimensional object from the substance mixture A. The process then involves d) immersing the three-dimensional object in a substance mixture B, e) leaving the three-dimensional object in the substance mixture B for a time, and f) removing the three-dimensional object from the substance mixture B. The substance mixture A has a temperature (process temperature A) which is above the melting point of the polymer, and the substance mixture B has a temperature (process temperature B) which is below the melting point of the polymer.

A method of forming a sandwich structure including at least partially filling an open volume of an open cellular core with a sacrificial mold material, consolidating the sacrificial mold material to form a sacrificial mold, laying up a composite facesheet on each of at least two surfaces of the open cellular core, co-curing the composite facesheets by applying a consolidation temperature and a compaction pressure to the composite facesheets to form the sandwich structure, and removing the sacrificial mold. The compaction pressure is greater than a compressive strength of the open cellular core and less than a combined compressive strength of the open cellular core and the sacrificial mold.

Disclosed are a glass fiber tape, a surface modification method and an application thereof. The surface modification method includes the determination of an optimal decarburizing condition of the glass fiber tape, the decarburization of the glass fiber tape, and the coating of palmitic acid.

A method of forming a polyolefin-perovskite nanomaterial composite which contains oriented electrically and thermally conductive pathways. The method involves milling a polyolefin with particles of a perovskite nanomaterial, molding to forma composite plate, and subjecting the composite plate to an AC voltage. The AC voltage forms oriented electrically and thermally conductive pathways by partial dielectric breakdown of the composite. The presence of the oriented electrically and thermally conductive pathways gives the polyolefin-perovskite nanomaterial electrical and thermal conductivity and dielectric permittivity higher than the polyolefin alone.