A pipe connection structure for an endoscope is provided with a pipe made of a corrosion-resistant alloy material, and a piping block made of a corrosion-resistant alloy material, the piping block having a pipe insertion hole. An end of the pipe is fitted in the pipe insertion hole and the pipe and the piping block are connected by welding by irradiating a laser beam on the entire circumference of an area where the end of the pipe is fitted in the hole formed on the piping block. An axial length of the pipe inserted in the pipe insertion hole is in a range of 0.5 to 2 times a wall thickness of the pipe.

A remote manufacturing yard configured to build a cryogenic distillation column for use in an air separation unit (ASU) is provided. the remote manufacturing yard can include a fabrication facility comprising an enclosure. The fabrication facility further can also include a vertical plate roller; a lifting device, an assembly table configured to support two or more partial shells simultaneously; a first weld machine configured to weld the two or more partial shells together to form a course while keeping the two or more partial shells stationary; a column section assembly area having a second weld machine disposed therein, a distributor installation area configured to receive at least one column section and install a distributor within the column section to form a distributor column section; and a packing installation area configured to receive the distributor column section and install packing within the distributor column section to form a packed column section.

A method for installing packing in a remote manufacturing yard is provided. The method can include the steps of manufacturing structured packing in a facility away from the remote manufacturing yard; splitting a level of the structured packing into a plurality of sections and then placing each section into a separate box for transport, wherein each box can include an inner profile configured to match its section of packing so as to reduce damage to the packing during transport; transporting the boxes to the remote manufacturing yard; and installing the packing into a column section.

Disclosed is a method of manufacturing a metal mask. A method of manufacturing a metal mask in accordance with an exemplary embodiment of the present invention includes forming through holes in a plate using a laser, by scanning the laser onto sequentially smaller overlapping portions of the plate.

A three-dimensional deposition device and a three-dimensional deposition method used to highly accurately manufacture a three-dimensional object are provided. A three-dimensional deposition device for forming a three-dimensional shape by depositing a formed layer on a base unit includes: a powder supply unit which supplies a powder material; a light irradiation unit which irradiates the powder material with a light beam so that at least a part of the powder material irradiated with the light beam is sintered or melted and solidified to form the formed layer; a heating unit which selectively heats an area having passed through a position irradiated with the light beam in the base unit or the formed layer or an area not having passed through the position irradiated with the light beam; and a control device which controls operations of the powder supply unit, the light irradiation unit, and the heating unit.

Laser cutting systems and methods are used to cut amorphous metal materials, such as thin amorphous metal ribbons or foils, with a relatively high speed. Embodiments of laser cutting systems and methods described herein also allow cutting with reduced crystallization, and thus reduced increases in thickness, at the cut edges and with reduced cracks or other cutting defects at the cut edges. A fiber laser, such as an Ytterbium fiber laser, is used to generate a laser beam with a power level greater than about 50 W. The laser beam is focused and directed at the amorphous metal material with a beam spot size of about 30 microns or less. The focused laser beam and the amorphous metal material are moved relative to each other at a speed greater than about 18 inches per second such that the focused laser beam cuts the amorphous metal material.

A weld joint includes a first component of a first material and a second component of a ductile second material dissimilar from the first material. A planar face of the first component abuts a planar face of the second component. A V shaped weld groove is created in the first component defining a first groove end where a substantially planar groove face of the first component intersects a plane defined by the planar face of the second component below an end face of the second component. A slot is created below the groove end in the planar face of the second component having a closed end facing toward the end face of the second component and extending away from the planar face of the second component at an angle measured with respect to a central longitudinal axis of the slot.

Provided is a rapid manufacturing process of ferrous and non-ferrous parts using a plasma electron beam in which the plasma electron beam is workable even in a low vacuum pressure environment and has a relatively large radiation range, productivity of the process is improved as a high-power beam can be emitted to a ferrous and non-ferrous powder, and production costs are reduced due to low maintenance and manufacturing costs.

The present disclosure is directed to methods for joining initially separate members of different metallic materials, e.g., as in joining segments of a multi-segment intravascular guide wire, as well as multi-segment intravascular guide wires so formed. Initially separate members are provided, which members comprise different metallic materials relative to one another (e.g., stainless steel and nitinol). The members are aligned with one another, and a first force is applied to the members while delivering electrical current through the members to solid state weld the separate members to one another. A follow up force that is greater than the first force is applied as solid-state deformation occurs and a weld nugget forms between the members. The weld nugget so formed is thinner and of a larger transverse cross-sectional area than would be produced without application of the follow up force.

A weather shelter for providing protection during assembly of a column at a remote manufacturing yard is provided. The weather shelter can include a frame mounted to a hanging platform, and extending upwards from the hanging platform, the hanging platform supported by the column; and a protective covering mounted on the frame having a side covering and a top covering, the protective covering configured to provide an inner atmosphere within the protective covering protected from external elements when the protective covering is secured to the column.