A print head is disclosed for use with an additive manufacturing system. The print head may include a housing configured to receive a prefabricated woven sleeve, and a fiber guide disposed at least partially inside the housing and configured for insertion into the prefabricated woven sleeve. The print head may also include a diverter connected to an end of the fiber guide inside of a downstream mouth of the housing, and at least one cure enhancer located at the mouth of the housing.

A print head is disclosed for use with an additive manufacturing system. The print head may include a nozzle having an internal passage and at least one ellipsoidal orifice. The print head may also include a fiber guide disposed at least partially inside the nozzle and dividing the internal passage into a plurality of channels. A length of each of the plurality of channels extends in an axial direction of the nozzle.

A print head is disclosed for use with an additive manufacturing system. The print head may include a nozzle tip, a first matrix source configured to selectively supply a structural matrix to the nozzle tip, and a second matrix source configured to selectively supply a temporary support matrix to the nozzle tip. The print head may also include a reinforcement supply configured to supply a continuous reinforcement through the nozzle tip only when the first matrix source is supplying the structural matrix to the nozzle tip.

A system is disclosed for additively manufacturing a composite structure. The system may include a head configured to discharge a continuous reinforcement that is at least partially coated with a matrix, and a housing trailing from the head and configured to at least partially enclose the continuous reinforcement after discharge. The system may also include a heat source disposed at least partially inside the oven, and a support configured to move the head during discharging.

The invention relates to a dosage form comprising a physiologically effective amount of a physiologically active substance (A), a synthetic, semi-synthetic or natural polymer (C), optionally one or more physiologically acceptable auxiliary, substances (B) and optionally a synthetic, semi-synthetic or natural wax (D), wherein the dosage form exhibits a resistance to crushing of at least 400 N and wherein under physiological conditions the release of the physiologically active substance (A) from the dosage form is at least partially delayed.

A system for scalable multiple-material additive manufacturing (SMAM) includes: an on-demand multiple material manufacturing (M3) unit configured to additively print a designed object, the M3 unit comprising a multi-functional ensemble head configured for multiple material printing, in-line metrology, in-line error corrective milling, and in-line quality inspection; a process control unit configured to autonomously control all functions of the system with remote operation interfaces; an expandable post-processing unit configured to perform heat treatment and polishing/deburring, following the printing; an environmental control unit including an oxygen removal system and particulate filters for additive manufacturing and post-processing; a protective housing providing structural stability and vibration isolation with power and electrical interfaces; a printing head assembly comprising a plurality of printing heads with a multiple feeding mechanism; a laser scanning metrology to monitor dimension discrepancy within a tolerance; and an in-line ultrasonic nondestructive evaluation (NDE) inspection configured to find interfacial defects during the printing.

Methods for fabricating a resin object are provided. In embodiments. such a method comprises irradiating a curable composite with a focal spot of a focused ultrasound beam. the curable composite comprising a porous material having a solid matrix defining pores distributed throughout the solid matrix and a curable composition comprising prepolymers filling the pores. to form at least one cured region of polymer within the curable composite so as to provide a resin object comprising an interpenetrating network comprising the solid matrix of the porous material entangled with the polymer of the at least one cured region.

A polymeric material used for 3D printing is preheated, at a first zone in a 3D printer, to a temperature in excess of its glass transition temperature prior to being melted, at a second zone, for incorporation into a build object. This enables the polymer to be processed more rapidly than in the prior art.

An apparatus for contactless manipulation of material and components, such as electronic components, includes of material and/or component feed devices; acoustic transducer arrays; at least one material and/or component joining device; base on which object is formed; a computing unit with an executable program. The program is used to control acoustic transducers that generate an acoustic field required for particle manipulation. The control program can receive and process a signal coming from a feedback device in order to estimate position of material particles or components and improve manipulation accuracy.

A method is disclosed for continuously manufacturing a composite hollow structure. The method may include continuously coating fibers with a matrix, and revolving matrix-coated fibers about a non-fiber axis. The method may also include diverting the matrix-coated fibers radially outward away from the non-fiber axis, and curing the matrix-coated fibers.