To provide a fluid contact member whose corrosion resistance is particularly further improved than that in the related art. In order to solve this problem, a fluid contact member 10 includes a fluid contact portion 1 configured to be in contact with a fluid, the fluid contact portion 1 has a cobalt-based alloy phase 2 having a dendrite, and a compound phase 3 formed in an arm space of the dendrite and containing chromium carbide, and among a plurality of secondary arms 5 extending from one primary arm 4 constituting the dendrite, an average interval between adjacent secondary arms 5 is 5 μm or less. At this time, the average interval is preferably 3 μm or less. Further, the compound phase 3 is preferably formed discontinuously in the dendrite arm space.

In one embodiment, systems and methods include using an automated laser system to remove a portion of a coating for nutplate installation. An automated laser system comprises a laser scanner and a laser head, wherein the laser head is coupled to the laser scanner. The laser head comprises a containment unit and a vacuum connector wherein the vacuum connector is disposed on a first side of the containment unit. The laser head further comprises a camera system, a light source, a first actuator, and a second actuator all disposed on a top surface of the containment unit. The laser head further comprises an end piece, wherein the second actuator is configured to displace the end piece.

A laser processing apparatus includes a processing nozzle. The processing nozzle includes an upper wall having a laser beam passage port defined therein, a lower wall that is connected to a lower portion of a part of the upper wall and that includes a debris capturing chamber defined therein, a suction port defined between another part of the upper wall and the lower wall, a first air ejection port defined in the lower wall, for ejecting air across the debris capturing chamber toward the suction port in a predetermined direction perpendicular to an optical path of a laser beam, and a second air ejection port defined in the lower wall below the first air ejection port, for ejecting air in the predetermined direction. A flow rate of air ejected from the second air ejection port is smaller than a flow rate of air ejected from the first air ejection port.

An end effector (20) for a machine tool (10) for laser machining processes configured to direct a laser beam (L) onto a working surface (16) along an optical axis (OP), the end effector (20) comprising a supporting body (22) which includes a duct (26) having an axis parallel to at least one portion of the optical axis (OP) of propagation of the laser beam (L); the supporting body (22) being configured to couple the duct (26) to an outlet portion, in particular a sensor cone, which comprises a further duct having an axis parallel to at least one portion of the optical axis (OP) of propagation of the laser beam (L), the outlet portion being configured to be coupled to the supporting body (22) and to provide an outlet for the laser beam (L) towards a working surface (16).

The aforesaid supporting body (22) further comprises, formed in a single piece:

a set of auxiliary fluid ducts (520, 522, 523, 524) configured to direct respective fluids used in laser machining processes onto the working surface, configured to couple to the outlet portion; and

a heat exchanger (400) for cooling systems located in the supporting body (22) so as to occupy a volume (400a, 400b) that surrounds at least one portion of the tubular duct (26) of the supporting body (22), wherein the heat exchanger (400) comprises an inlet chamber and an outlet chamber in communication with one another for passage of cooling fluid, and wherein the heat exchanger (400) has a lattice structure of thermally conductive elements (402) configured to allow passage of a cooling fluid in the heat exchanger (400) between the inlet chamber and the outlet chamber.

A laser machining nozzle includes: a nozzle body coupled to a machining head; and a flow path formed through the nozzle body in a longitudinal axis of the nozzle body to allow a machining-assist gas to be injected toward a workpiece therethrough while a laser beam is emitted toward the workpiece, wherein the flow path comprises a first flow path formed in a flow direction of the machining-assist gas and generating a supersonic flow of the machining-assist gas; a second flow path connected to the first flow path in the flow direction of the machining-assist gas and expanding a volume of the machining-assist gas having passed through the first flow path; and a flow path boundary defining a boundary between the first flow path and the second flow path.

An additive-manufacturing head is used for performing additive manufacturing by feeding a material to a workpiece and irradiating the workpiece with a laser beam. The additive-manufacturing head includes: a ring-shape laser beam forming unit configured to form a laser beam in a ring shape; a laser beam emitting unit configured to emit the ring-shape laser beam toward a workpiece; and a material feeding unit having an outlet which is disposed inside the ring-shape laser beam emitted from the laser beam emitting unit and from which the material is released, and configured to feed the material from the outlet toward the workpiece. The head configured in this manner can improve the material usage efficiency for the directed energy deposition method.

A laser processing head (100) comprises a first-level nozzle (110) and a second-level nozzle (120) that communicate with each other, wherein the second-level nozzle (120) is arranged downstream of the first-level nozzle (110); an inner diameter of the second-level nozzle (120) gradually decreases in a laser transmission direction, and minimum inner diameter of the first-level nozzle (110) is larger than the inner diameter of a tail end of the second-level nozzle (120). The laser processing head (100) solves the contradiction between high energy density laser and the system reliability through gradual coupling. Also provided are a laser processing system and a laser processing method.

In one embodiment, systems and methods include using an automated laser system to remove a portion of a coating for nutplate installation. An automated laser system comprises a laser scanner and a laser head, wherein the laser head is coupled to the laser scanner. The laser head comprises a containment unit and a vacuum connector wherein the vacuum connector is disposed on a first side of the containment unit. The laser head further comprises a camera system, a light source, a first actuator, and a second actuator all disposed on a top surface of the containment unit. The laser head further comprises an end piece, wherein the second actuator is configured to displace the end piece.

Disclosed is a multi-mode laser device for metal manufacturing applications including additive manufacturing (AM), laser cladding, laser welding, laser cutting, laser texturing and laser polishing. The multi-mode laser device configures off-axis, solid-state diode or diode-pumped lasers into an array to perform precision controlled, direct metal deposition printing, cladding, laser welding, laser cutting, laser texturing and laser polishing through a single device. Dual-mode printing, cladding and welding capability using metal wire and powder feedstock sources in the same device is provided with in-line control, precision wire feed driver/controller, adjustable shield gas diffuser, and nozzles tailored to wire feedstock diameter.

A laser processing method for laser processing of a workpiece made of a base material and a fiber reinforced composite material containing fibers having a thermal conductivity and a processing threshold higher than physical properties of glass fibers. The laser processing method includes a step of processing the workpiece by forming a plurality of through-holes extending through the workpiece by irradiating the workpiece with pulsed laser light from a processing head while relatively moving the workpiece and the processing head in a predetermined cutting direction. The pulsed laser light has a pulse width smaller than 1 ms and an energy density capable of forming each of the through-holes by a single pulse.