Embodiments of the inventive concept provide a substrate treating apparatus and a substrate treating method for not letting an irradiation region of a laser deviate from a target region, even if a shaking angle of a chemical deviates from an allowable range due to a vibration or an airflow. The inventive concept provides a substrate treating apparatus. The substrate treating apparatus includes: a substrate support unit configured to support a substrate having a chemical coated thereon; a laser generation unit configured to irradiate a laser to the substrate; and a light-transmitter positioned along a path at which the laser is irradiated.

The device comprises a welding unit with a tube (3), a laser radiation unit (1) radiating in direction of the tube axis (3.0), and a mandrel (4) which is connected to the tube (3) via a holding unit which is formed, e.g., by two spacer elements (5.1) and which is coaxially arranged relative to and in the tube (3). The tube (3) and the circumferential surface of the mandrel (4) are reflective of the laser radiation of the laser radiation unit (1) such that through multiple reflections between the tube (3) and the mandrel (4) the laser radiation is deflected toward the beam output-side tube end (3.2) and is shaped annularly.

An improved laser-machining head unit for fabric comprising a diagonal mirror assembly with a tubular sleeve extending downward to an internally threaded distal tip. An annular adapter is provided with an externally-threaded male fining at one end and an internally-threaded receptacle at an opposing end. The externally-threaded male fitting of the adapter is adjustably screw-threaded into the internally threaded distal tip of the tubular sleeve. A laser nozzle has a frusto-conical tip and an annular collar Cm attachment to the adapter, the collar being externally threaded and fixedly screw-inserted into the internally-threaded receptacle of the adapter. In addition, there is a gas inlet affixed to the collar of the laser nozzle for introducing gas at a 90-degree angle thereto. The screw-adjustable configuration ensures proper alignment at all times of the lens, the beam and the nozzle aperture, and air stream.

A laser beam machine has a laser head (3) for emitting a laser beam onto a workpiece which is to be treated, and a movement unit (1, 2, 9) for physically moving the laser head (3), which movement unit has a linearly moving machine portal (1) and a transverse carriage (2) which is held such that it can be moved on said machine portal in a transverse manner, wherein a flexible fiber cable (10) with a minimum permissible bending radius enters at an inlet point on the upper laser head end for transmitting the laser beam, and wherein a cable guidance system (12, 13) is provided in order to guide the fiber cable (10) at least over a portion of its length. In order to provide a laser beam machine proceeding from the above, in which laser beam machine inclined positions of the laser head (3) are also possible without the fiber cable (10) being subjected to excessive loading, the invention proposes that the cable guidance system (12, 13) has a deflection unit (13) which is fitted to the laser head (3) and which prespecifies a flexurally rigid deflection arc which extends above the inlet point and closely adjoins the inlet point, and by means of which deflection arc the fiber cable (10) is guided to the inlet point, and the radius of which deflection arc is greater than the minimum permissible bending radius of the fiber cable (10).

A laser processing system herein includes a laser oscillator, a laser optical path that guides laser beam from the laser oscillator to a workpiece, a purge gas supply line for supplying a purge gas into the laser optical path, oxygen sensor and an impure gas sensor which detects an impure gas influencing the propagation of the laser beam that are installed in the laser optical path, and an impure gas sensor output value correction unit. The impure gas sensor output value correction unit corrects an output value of the impure gas sensor based on an output value of the oxygen sensor.

A three dimensional printing system includes a powder delivery system and a controller. The powder delivery system includes a cartridge, a powder transfer assembly, a vacuum source, and source of inert gas. The cartridge includes a lower portion defining a lower cavity containing powder and an upper portion. The powder transfer assembly includes a cowling and a loader suction tube that extends through the cowling. The controller is configured to: (1) lower the cowling into sealing engagement with the upper portion of the cartridge whereby an upper cavity is defined between the cowling and the upper portion of the cartridge, (2) operate the source of inert gas to positively pressurize the upper cavity, and (3) lower the loader suction tube into the powder while operating the vacuum source to extract the powder.

A method of additive manufacture is disclosed. The method can include providing an enclosure surrounding a powder bed and having an atmosphere including helium gas. A high flux laser beam is directed at a defined two dimensional region of the powder bed. Powder is melted and fused within the defined two dimensional region, with less than 50% by weight of the powder particles being displaced into any defined two dimensional region that shares an edge or corner with the defined two dimensional region where powder melting and fusing occurs.

An additive manufacturing system includes build plate with a powdered metal material disposed thereon. The additive manufacturing system also includes at least one wall defining an air-locked build chamber, a conveyor system, and a plurality of operation stations. The conveyor system is disposed within the air-locked build chamber. The conveyor system is configured to transport the build plate. The plurality of operation stations are positioned adjacent to the conveyor system and within the air-locked build chamber. Each operation station of the plurality of operation stations is configured to facilitate execution of at least one additive manufacturing operation on the powdered metal material disposed on the build plate. The conveyor system is configured to transfer the build plate from a first operation station of the plurality of operation stations to a second operation station of the plurality of operation stations.

An improved laser-machining head unit for fabric comprising a diagonal mirror assembly with a tubular sleeve extending downward to an internally threaded distal tip. An annular adapter is provided with an externally-threaded male fitting at one end and an internally-threaded receptacle at an opposing end. The externally-threaded male fitting of the adapter is adjustably screw-threaded into the internally threaded distal tip of the tubular sleeve. A laser nozzle has a frusto-conical tip and an annular collar for attachment to the adapter, the collar being externally threaded and fixedly screw-inserted into the internally-threaded receptacle of the adapter. In addition, there is a gas inlet affixed to the collar of the laser nozzle for introducing gas at a 90-degree angle thereto. The screw-adjustable configuration ensures proper alignment at all times of the lens, the beam and the nozzle aperture, and air stream.

The present disclosure provides three-dimensional (3D) printing methods, apparatuses, software, and systems, some of which utilize one or more detectors that may be used to detect characteristics of the 3D object, e.g., in real-time during its formation. The present disclosure provides methods, apparatuses, software, and systems for generating different cross sections of one or more energy beams used for 3D printing of the 3D object.