Provided are systems and method for casing a wellbore of a hydrocarbon well. The casing including disposing a casing print head in a wellbore of a hydrocarbon well, and conducting a downhole casing operation including operating the casing print head to eject casing material to form a casing tubular in the wellbore, and operating the casing print head to eject casing liner material into an annular region located between the casing tubular and a wall of the wellbore to form a casing liner in the annular region, the casing tubular and the casing liner forming a casing of the wellbore.

A process of strengthening 3D printed sand core for the casting of integral hydraulic multi-way valve and a sand core for integral hydraulic multi-way valve are provided. The process includes: creating a sand core model of a sand core for an integral hydraulic multi-way valve in three-dimensional software, analyzing parts of the sand core to determine a weak part of the sand core; designing a pore channel with a pore diameter and a length in the sand core model according to a ratio L/D of a length to a diameter of the weak part, and forming a reinforcing core bar according to the pore channel; and 3D printing the sand core according to the sand core model, placing the reinforcing core bar in the pore channel, and achieving tight connection of the reinforcing core bar and the sand core in the hardening or curing process of the sand core.

In an example implementation, a method of determining liquid agent amounts in 3D printing includes measuring density levels of a build material at locations across a build material layer and determining if the measured density levels vary from expected density levels. For locations where measured density levels vary from expected density levels, an adjusted liquid agent dose is determined, and for locations where measured density levels do not vary from expected density levels, an expected liquid agent dose is determined. The adjusted and expected liquid agent doses are deposited onto the layer at locations corresponding with the adjusted and expected liquid agent doses.

Methods, systems, and apparatus, for performing pultrusion molding with concrete. One exemplary method includes conveying a textile material through a concrete infusion system to provide a concrete infused textile material (CITM). Heating and shaping the CITM by conveying the CITM through a microwave chamber comprising an electrically non-conductive die disposed therein, the microwave chamber operable to heat concrete infused in the textile material by irradiating the CITM with microwave energy as the CITM is conveyed through the microwave chamber, and the die operable to shape the CITM as the CITM is conveyed through the microwave chamber. Cooling the CITM by conveying the CITM through a cool down chamber operable to maintain heat in the CITM as the CITM is conveyed through the microwave chamber allowing the concrete to cure while a temperature of the CITM is reduced.

An extrusion molding machine includes: a molding portion having one end and other end, the one end having a die, the other end being connected to an extrusion port of an extrusion portion, the molding portion also including a screen arranged therein. The molding portion includes: at least one first temperature controlling member between the screen and the die, the first temperature controlling member including a plurality of first zones divided in a circumferential direction. Temperatures of the plurality of first zones can be individually controlled.

A hollow core element forming system including a measuring device configured to determine a location of a welding plate assembly on a casting bed. The welding plate assembly being connected to one or more prestressed strands. A hollow core forming mechanism has a strand guide located at a leading end of a support frame of the hollow core forming mechanism. The strand guide is configured to engage the one or more prestressed strands when the strand guide is in a closed position and to disengage the one or more prestressed strands when the strand guide is in an open position without interference between the strand guide and the welding plate assembly. A strand guide controller unit causes the strand guide to rotate between the open position and the closed position based on the location of the strand guide relative to the welding plate assembly.

An apparatus (1) for additive manufacturing of three-dimensional objects (2) by successive, selective layer-by-layer exposure and thus solidification of construction material layers of a construction material (3) that can be solidified by means of an energy beam, comprising at least one temperature control device (11), which is provided for at least partial temperature control of a construction material layer formed in a construction plane, wherein the temperature control device (11) comprises at least one temperature control element (12), which is provided for generating an, especially electromagnetic, temperature control beam, wherein the at least one temperature control element (12) is formed as or comprises a temperature control diode.

The invention relates to a method for powder pressing at least two pressed parts, in particular ceramic powder pressed parts and/or metal powder pressed parts, wherein a first powder (17) for pressing a first pressed part is filled into a first cavity (13) of a die (12) with a first filling level and a second powder (18) for pressing a second pressed part is filled into a second cavity (14) of the die (12) with a second filling level, wherein the first and second filling levels are individually adjusted. Preferably, the first powder is filled via a first filling shoe and the second powder is filled via a second filling shoe, wherein the two filling shoes, at least temporarily, are not moved simultaneously. A powder pressing device is also claimed which is suitable for implementing the aforementioned method.

In a method for additive manufacturing of a workpiece, a data set defines the workpiece in multiple layers. A first energy beam is moved relative to a manufacturing platform along first trajectories to produce, in temporally successive steps, a stack of workpiece layers. Individual properties of the stack are determined using a measurement arrangement having an exciter that excites the stack with a second energy beam, and having a detector that detects properties of the stack resulting from an excitation along a defined detection path in a spatially resolved manner. At least one of the second energy beam and the detection path is moved relative to the manufacturing platform along further trajectories using a further scanning unit. The first scanning unit and the further scanning unit establish completely separate beam paths for the first energy beam and the at least one of the second energy beam and the detection path.

The invention is a machine for producing decorative aggregate G-layer on top surfaces of claddings in cooperation with a cladding manufacturing machine. The G-layer production machine may be integrated into the cladding manufacturing machine or a standalone machine. In both options, the machines synchronize the overlaying of the top G-layer with the manufacturing process of the claddings to ensure continuous production of multi-layer claddings with a decorative aggregate layer. The overlaying itself is done under controlled condition to produce homogenous distribution of the aggregates on the top surface of the claddings to provide them an aesthetic look.