Method for fitting or plugging a first connecting part into a second connecting part of a processing head for thermal material processing, the first connecting part having, on an encircling outer face, and/or the second connecting part having, on an encircling inner face, at least one slot, extending at least around a partial circumference, with a slot width B130, B230 and a slot depth T130, T230, T112, T120, which receives an O-ring or profile ring, extending around the entire circumference, with a cord size Sa, wherein, when the first connecting part is fitted or plugged into the second connecting part, the O-ring or profile ring is initially in contact with the opposite inner face or opposite outer face only around a partial circumference, which extends along the slot, or around a plurality of partial circumferences, which extend along the slot, and connecting parts and arrangements made up thereof.

A laser cutting nozzle includes an inner nozzle and an outer nozzle. The inner nozzle exhibits a tube shape having a through hole on an axis and having a diameter decreasing on a first end portion side and includes a notch extending in the axis direction along an outer peripheral surface on a second end portion side. The outer nozzle is fitted to the outer peripheral surface of the inner nozzle and includes a vent passage including the notch and communicating between the first end portion and the second end portion in the axis direction. A minimum flow cross-sectional area of the vent passage matches an opening area of the notch in an end surface on the second end portion side.

An additive manufacturing tool configured to couple to a spindle of a CNC machine, comprises a plurality of drive wheels movable between an engaged position wherein they compress filament from a filament source against a drive disc and a disengaged position wherein they are spaced apart from the filament, and a delivery assembly including a heating element and a nozzle having an outlet opening. When the plurality of drive wheels are in the engaged position and the drive disc is rotated, the filament is drawn into the tool from the filament source and routed around the drive disc to the nozzle, where heat transferred from the heating element to the nozzle melts the filament so that the filament flows through the outlet opening.

A device for distributing gas near a weld location includes a cap, a funnel, an inlet, and an aperture. The cap includes a sidewall and an annular lip, and defines a reservoir between the sidewall and the annular lip. The annular lip includes a proximal-most edge. The cap defines an opening, and defines a longitudinal axis. The funnel is disposed adjacent a distal end of the cap. The inlet is disposed in mechanical cooperation with the cap. The aperture is disposed through the sidewall of the cap and is in fluid communication with the inlet. The aperture is disposed distally of the proximal-most edge of the annular lip. Gas is configured to flow through the inlet, through the aperture and into the reservoir. The reservoir is configured to allow the gas to uniformly overflow the proximal-most edge of the annular lip and flow distally through the opening defined by the cap.

Aspects of the present disclosure relate to improved laser metal deposition heads. Various embodiments may include a main body, a nozzle seat, a powder flow guide, an inner nozzle, an outer nozzle, and a coolant sleeve. In some embodiments, powder inlets in the main body are angled relative to a primary axis of the laser metal deposition head. In some embodiments, the nozzle seat includes a plurality of powder distribution channels that are also angled relative to the primary axis of the laser metal deposition head.

A removably attached coupling assembly can be used to be attached to a laser focus optic assembly of a liquid jet guided laser system. The coupling assembly can include a coupling body, a window assembly, and a nozzle assembly. The coupling assembly thus can allow the independent and separate servicing of the window and the nozzle. For example, to service the window, the coupling assembly can be first detached from the laser focus optic assembly, exposing the top portion of the coupling assembly. The window assembly then can be detached from the coupling assembly. The window can be removed from the window assembly for servicing, such as being repaired or replaced.

An adjustment collar for a laser machine tool includes a first actuator between an outer housing and an inner collar, the first actuator operable to move the inner collar with respect to the outer housing in the X-axis and a second actuator between the outer housing and the inner collar, the second actuator operable to move the inner collar with respect to the outer housing in the Y-axis.

An adjustment collar for a laser machine tool includes a first actuator between an outer housing and an inner collar, the first actuator operable to move the inner collar with respect to the outer housing in the X-axis and a second actuator between the outer housing and the inner collar, the second actuator operable to move the inner collar with respect to the outer housing in the Y-axis.

In a laser processing method, laser lights of fiber lasers or direct diode lasers is irradiated onto an iron-based plate material from a nozzle, a nozzle with a nozzle opening whose opening diameter is preliminarily set according to a thickness of the plate material is selected from plural nozzles whose nozzle openings have different opening diameters from each other, and the plate material is cut while irradiating the laser lights onto the plate material and injecting assist gas from the nozzle opening toward the plate material.

Aspects of the present disclosure relate to improved laser metal deposition heads. Various embodiments may include a main body, a nozzle seat, a powder flow guide, an inner nozzle, an outer nozzle, and a coolant sleeve. In some embodiments, powder inlets in the main body are angled relative to a primary axis of the laser metal deposition head. In some embodiments, the nozzle seat includes a plurality of powder distribution channels that are also angled relative to the primary axis of the laser metal deposition head.