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.

A laser apparatus including a stage. A target substrate is mounted on the stage. The laser apparatus further includes a coupling unit disposed below the stage and coupled with a conveying unit, the conveying unit conveying the stage. The laser apparatus additionally includes a discharge unit disposed at a predetermined position for laser machining, configured to communicate with the coupling unit when docked with the coupling unit, and configured to discharge foreign matter that is generated during laser machining.

A laser apparatus including a stage. A target substrate is mounted on the stage. The laser apparatus further includes a coupling unit disposed below the stage and coupled with a conveying unit, the conveying unit conveying the stage. The laser apparatus additionally includes a discharge unit disposed at a predetermined position for laser machining, configured to communicate with the coupling unit when docked with the coupling unit, and configured to discharge foreign matter that is generated during laser machining.

An apparatus for manufacturing a display device includes: a stage unit; and a suction unit located above the stage unit, wherein the suction unit includes: a main body including an outer box with top and bottom openings and an inner cup disposed in the outer box; a first air blower disposed above the main body and including a first main pipe extending in a first direction and a second air blower including a second main pipe extending in a second direction intersecting the first direction; a lower plate coupled to a lower end of the outer box and including a through hole; and a suction inlet defined by an inner end of the lower plate defining the through hole and a lower end of the inner cup, wherein the suction inlet is opened downward.

A method and an apparatus for collecting powder samples in real-time in powder bed fusion additive manufacturing may involves an ingester system for in-process collection and characterizations of powder samples. The collection may be performed periodically and uses the results of characterizations for adjustments in the powder bed fusion process. The ingester system of the present disclosure is capable of packaging powder samples collected in real-time into storage containers serving a multitude purposes of audit, process adjustments or actions.

A method and an apparatus for collecting powder samples in real-time in powder bed fusion additive manufacturing may involves an ingester system for in-process collection and characterizations of powder samples. The collection may be performed periodically and uses the results of characterizations for adjustments in the powder bed fusion process. The ingester system of the present disclosure is capable of packaging powder samples collected in real-time into storage containers serving a multitude purposes of audit, process adjustments or actions.

Air management systems are provided for optimizing airflow in laser welding with deflectors. A system for a welder includes a blower to generate an airflow stream. A plenum receives the airflow stream, directs it toward the workpiece, and defines an outlet facing the workpiece to expel the airflow stream toward the workpiece. A deflector adjacent the outlet is formed as a conical section converging from the plenum toward the workpiece, and is defined by an angled wall with an open center. The deflector concentrates the airflow stream to impart a velocity increase to the airflow stream after leaving the outlet and to impart a favorable directional component to the airflow stream toward a weld zone, as well as protecting the laser lens by increasing the downward momentum force of the air stream to eliminate the potential of spatter impinging the lens.

Air management systems are provided for optimizing airflow in laser welding with deflectors. A system for a welder includes a blower to generate an airflow stream. A plenum receives the airflow stream, directs it toward the workpiece, and defines an outlet facing the workpiece to expel the airflow stream toward the workpiece. A deflector adjacent the outlet is formed as a conical section converging from the plenum toward the workpiece, and is defined by an angled wall with an open center. The deflector concentrates the airflow stream to impart a velocity increase to the airflow stream after leaving the outlet and to impart a favorable directional component to the airflow stream toward a weld zone, as well as protecting the laser lens by increasing the downward momentum force of the air stream to eliminate the potential of spatter impinging the lens.

A laser processing system includes: a wavelength-variable laser device configured to output each of a laser beam at an absorption line as a wavelength at which light is absorbed by oxygen and a laser beam at a non-absorption line as a wavelength at which the amount of light absorption by oxygen is smaller than at the absorption line; an optical system configured to irradiate a workpiece with the laser beam; and a laser control unit configured to control the wavelength-variable laser device, set the wavelength of the laser beam output from the wavelength-variable laser device to be the non-absorption line when laser processing is performed on the surface of the workpiece in gas containing oxygen, and set the wavelength of the laser beam output from the wavelength-variable laser device to be the absorption line when ozone cleaning is performed on the surface of the workpiece in gas containing oxygen.

A gas supply device for a laser machining head is provided for generating a homogeneous gas flow. The gas supply device includes a gas inlet, a shared volume for superimposing a laser beam and the gas flow, and a gas channel system which, starting from the gas inlet, branches at least twice and connects the gas inlet with several outlet openings at the shared volume. The gas channel system and the outlet openings are configured to provide a substantially homogeneous gas flow to the shared volume.