A method and system is provided for laser piercing of thick plate material that allows for rapid transition to a cutting operation that can reliably produce a piercing hole and complete a cutting operation of the intended shape in a short time, while improving the cutting quality of the cutting after switching from the piercing operation. The cutting nozzle has a centrally located laser. The piercing operation applies a laser beam to the cut work while axially supplied pure oxygen gas is applied towards the cutting work. Additionally, a direction controlled nozzle adjacent the main cutting port provides a discharge of high pressure compressed air non-axially relative to the cutting operation to clear excess molten metal and debris from the kerf thereby increasing the efficiency of the piercing and shortening the cycle time.

An object is to provide a technology in which in debarring machining on a three-dimensionally shaped ridge line by laser application, a stable gas flow can be supplied and in which stable deburring machining can be performed. A deburring device for removing a burr which is present on a ridge line of a workpiece after being machined, includes: a laser device which includes a laser machining head that applies laser light to the ridge line; a transport device which transports the laser device and a gas jetting, device; and a controller which controls the laser device, the gas jetting device and the transport device and the controller controls the gas jetting device and the transport device such that a gas jetting nozzle is moved on a plane including the bisector of an apex angle of the ridge line and the ridge line and that in a side view parallel to the ridge line, an angle formed by the ridge line and the central axis line of the gas jetting, nozzle is an acute angle.

Welded parts and methods of manufacturing the same are disclosed. A welded part may include first and second metal workpieces having respective first and second edges forming a butt joint. The welded part may further include a first laser weld joining the first and second edges on one side of the first and second metal workpieces, and a second laser weld joining the first and second edges on another opposite side of the first and second metal workpieces. Some example parts may have laser welds that cooperate to extend across an entire depth of the butt joint and form an overlap zone between the first and second laser welds. In some examples, the first and second laser welds may be formed with substantially zero macroporosity.

A rotor blade includes: a blade main body having a tip as an upstream end in a rotation direction, and a blade surface in contact with the tip and which is an upstream surface in a flow direction of a work fluid; and an erosion shield formed as a cladding portion using laser welding on the tip and the blade surface. A boundary between the blade main body and the erosion shield is shaped to approach a surface opposite the blade surface from an end facing the blade surface towards the tip. The boundary includes a first arc that includes the end facing the blade surface and a second arc closer towards the tip than the first arc. The first arc is convex towards an inside of the blade main body and the second arc is convex towards an outside of the blade main body.

An additive manufacturing device includes: an inner light beam radiation device of radiating an inner light beam; an outer light beam radiation device of radiating an outer light beam; and a control device. when a molten pool is irradiated with the outer light beam, the control device controls a power density of the outer light beam representing an output per unit area such that a cooling rate of the molten pool representing a temperature drop per unit time is 540 C./s or less at a freezing point of a carbide binder included in the molten pool, the molten pool being formed by irradiating a material including a hard material and a carbide binder with the inner light beam to melt the material. According to the present disclosure, the additive manufacturing device can prevent cracking and additively manufacture a high-quality shaped object with a simple configuration.

A processing apparatus with: an irradiation apparatus that emits an energy beam; and a supply apparatus that supplies materials to an irradiation position of the energy beam, the processing apparatus forms a build object by moving the irradiation position from a first position on a first object to a second position that is away from the first object.

Systems and methods for additive manufacturing, and, in particular, such methods and apparatus as employ pulsed lasers or other heating arrangements to create metal droplets from donor metal micro wires, which droplets, when solidified in the aggregate, form 3D structures. A supply of metal micro wire is arranged so as to be fed towards a nozzle area by a piezo translator. Near the nozzle, an end portion of the metal micro wire is heated (e.g., by a laser pulse or an electric heater element), thereby causing the end portion of the metal micro wire near the nozzle area to form a droplet of metal. A receiving substrate is positioned to receive the droplet of metal jetted from the nozzle area.

A method for processing glass elements is provided. The method includes introducing a perforation line for parting a glass element introduced into the glass element during or after a hot processing process at an elevated temperature of at least 100 C. Spaced-apart filamentary flaws are introduced into the glass element along the predetermined course of the perforation line by a pulsed laser beam of an ultrashort pulse laser, and, during or after the introduction of the filamentary flaws, the glass element is cooled down so as to produce a temperature gradient, which induces a mechanical stress at the filamentary flaws, whereby the breaking force required for parting the glass element along the perforation line is reduced.

Embodiments relate to an apparatus for forming nano-structures with tailored properties on objects while fabricating the objects. The apparatus includes at least one reservoir that holds compositions therein. Each of the compositions includes a nano-structural material, a plurality of grain growth inhibitor nano-particles, and at least one of a tailoring solute and a plurality of tailoring nano-particles. At least one nozzle is operatively coupled to each reservoir and a translatable stage is positioned proximate to each nozzle. The stage includes a substrate holder adapted to hold a substrate. A surface profile determination device is positioned proximate to the stage to obtain profile data of the substrate. A control unit is operatively coupled to the device and the stage and regulates manufacture of a pinned nano-structure. The control unit forms deposition layers positioned proximal to the substrate with the compositions through electrospray techniques.

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.