There is provided high power laser systems, high power laser tools, and methods of using these tools and systems for cutting, sectioning and removing structures objects, and materials, and in particular, for doing so in difficult to access locations and environments, such as offshore, underwater, or in hazardous environments, such as nuclear and chemical facilities. Thus, there is also provided high power laser systems, high power laser tools, and methods of using these systems and tools for removing structures, objects, and materials located offshore, under bodies of water and under the seafloor.

According to one embodiment, a laser processing device includes a light irradiation section, and an optical element. The optical element includes a first transparent member provided via a gap with a tip of the light irradiation section, and a second transparent member. The first transparent member includes a first surface opposed to the tip of the light irradiation section, and a second surface provided so as to be connected to the first surface. The second transparent member includes a flat surface and a convex surface, the flat surface being provided so as to be opposed to the second surface of the first transparent member, the light passed through the first transparent member passing through the convex surface. An optical axis of the laser beam passing through the first surface and an optical axis passing through the convex surface are different from each other.

A high power laser system for providing laser beams in various laser beam patterns along a laser beam path that is positioned to provide for the in situ laser processing of materials in tubulars, such as pipes in a hydrocarbon producing well. Laser treating for providing flow assurance by direct and indirect laser processing of materials interfering with flow.

In a laser clad-welding method, a laser torch is moved so that a distance from a central axis of a countersunk groove to an irradiation locus of a laser beam falls within a first distance range within which a partitioning wall located between adjacent countersunk grooves does not melt down in a part of the countersunk groove on a center side of the combustion chamber, and a distance from the central axis of the countersunk groove to an irradiation locus of the laser beam falls within a second distance range within which a prescribed processing allowance is ensured with respect to a target interface in a part of the countersunk groove on an outer circumference side of the combustion chamber in a process of forming a cladding layer by irradiating a laser beam to the countersunk groove while feeding metal powder to the countersunk groove.

A high power laser system for providing laser beams in various laser beam patterns along a laser beam path that is positioned to provide for the in situ laser processing of materials in tubulars, such as pipes in a hydrocarbon producing well. Laser treating for providing flow assurance by direct and indirect laser processing of materials interfering with flow.

A wear-resistant member production method includes: forming a clad layer by moving, relative to a substrate while feeding cladding powder onto the substrate and melting it using a local heating device; and cutting the clad layer. The cladding powder includes matrix powder containing a copper-based alloy, and hard powder including, as a hard phase, a silicide containing one or more elements selected from Cr, Fe, Co, Ni, and Cu, and one or more elements selected from Mo, W, and Nb. The hard powder includes first hard powder and second hard powder. The second hard powder is fed, separately from the first hard powder, to a melt pool formed by melting the first hard powder and the matrix powder, such that at least part of the second hard powder remains unmelted within the clad layer.

A laser cutting device (100) is configured to etch an inner surface of a journal bearing (18). The laser cutting device (100) includes a laser (102); a beam directing tool (130) that receives a beam (108) emitted from the laser (102) and selectively changes the direction of travel of the beam (108); a fixture (170) that supports the journal bearing (18) in a desired position relative to the beam directing tool (130); an actuator (148) connected to one of the beam directing tool (130) and the fixture (170), the actuator (148) providing relative movement between the beam directing tool (130) and the fixture (170); and a controller (180) that controls the intensity and duration of the beam (108) emitted from the laser (102); and the actuator (148), whereby material can be removed from a surface of the journal bearing (18) to a precise width and depth, and in any pattern.

The present invention relates to a method and to a device for assembling together two tubes (1, 2) comprising a tubular junction sleeve and an internal pipe liner tube made of thermoplastic materials by laser welding two contact surfaces of revolution (1-1, 2-1) pressed one against the other at the ends of the tubular sleeve of said liner tube overlapping coaxially.

A tool arrangement is provided for accommodating portions of an optical tool in a park position, having an optical tool and having a housing with an opening suitable for accommodating portions of the optical tool in a housing interior, with a housing discharge connected to the housing in a fluid-conducting manner, and with a sealing sleeve arranged at the opening of the housing, wherein the sealing sleeve has a fluid-carrying line for adapting a variable fill volume of the sealing sleeve. In addition, a method is provided for accommodating portions of an optical tool in a park position.

A high power laser system for providing laser beams in various laser beam patterns along a laser beam path that is positioned to provide for the in situ laser processing of materials in tubulars, such as pipes in a hydrocarbon producing well. Laser treating for providing flow assurance by direct and indirect laser processing of materials interfering with flow.