There are provided high power laser and laser mechanical earth removing equipment, and operations using laser cutting tools having stand off distances. These equipment provide high power laser beams, greater than 1 kW to cut and volumetrically remove targeted materials and to remove laser affected material with gravity assistance, mechanical cutters, fluid jets, scrapers and wheels. There is also provided a method of using this equipment in mining, road resurfacing and other earth removing or working activities.

An embodiment relates to an ultrasonic additive manufacturing process, comprising joining a foil comprising a bulk metallic glass to a substrate; and forming a cladded composite comprising the foil and the substrate; wherein a thickness of the cladded composite is greater than a critical casting thickness of the bulk metallic glass, wherein the cladded composite comprises a cladding layer of the bulk metallic glass on the substrate and the bulk metallic glass comprises approximately 0% crystallinity, approximately 0% porosity, less than 50 MPa thermal stress, approximately 0% distortion, approximately 0 inch heat affected zone, approximately 0% dilution, and a strength of about 2,000-3,500 MPa.

With a laser decoration method for forming a painting film layer on a surface of a metal base material, and irradiating the painting film layer with a laser beam LB, thereby applying decoration, the decoration part is effectively colored by a simple process, which enables decoration with high visibility while omitting a complicated process. The problem was solved by a production method of a decorated aluminum base material characterized by including a process of forming a painting film layer on a surface of an aluminum base material, a process of partially exposing the surface of the aluminum base material by irradiation with a laser beam, and a process of subjecting the surface of the aluminum base material to an oxide film forming treatment, wherein a colored oxide film is formed on the exposed surface of the aluminum base material by the oxide film forming treatment.

A laser apparatus may include: a mirror configured to reflect a laser beam; an actuator configured to operate the mirror; and a controller configured to transmit a movement instruction to the actuator, wherein the controller predicts a movement completion time of the actuator, and transmits a polling signal so that the actuator receives the polling signal after expiration of the predicted movement completion time.

A laser apparatus may include: a mirror configured to reflect a laser beam; an actuator configured to operate the mirror; and a controller configured to transmit a movement instruction to the actuator, wherein the controller predicts a movement completion time of the actuator, and transmits a polling signal so that the actuator receives the polling signal after expiration of the predicted movement completion time.

In a laser processing apparatus for refining magnetic domains of a grain-oriented electromagnetic steel sheet by setting a laser beam to be focused on the grain-oriented electromagnetic steel sheet and scanned in a scanning direction, the laser beam focused on the grain-oriented electromagnetic steel sheet is linearly polarized light, and an angle between a linear polarization direction and the scanning direction is higher than 45° and equal to or lower than 90°.

A method and an apparatus for manufacturing a metallic article involve providing a non-metallic feedstock, for example in the form of an oxide of a desired metal or a mixture of oxides of the components of a desired metal alloy. A manufacturing apparatus has a reduction apparatus for electrochemically reducing the feedstock to a metallic product and a processor for converting the metallic product to a metallic powder. The powder is fed into an additive-manufacturing apparatus for fabricating the metallic article from the metallic powder. At least the reduction apparatus and the processor, and preferably also the additive-manufacturing apparatus, are collocated, or located in the same container, or in the same building, or on the same site.

A joined article includes a first component having a laser-treated surface portion and a second component having a laser-treated surface portion. An adhesive joins the first component to the second component at the treated surface portion. A method of making a joined article form components and a system for making joined articles are also disclosed.

A method for establishing a weld joint comprises the step of projecting an energy beam such as a laser beam (2) onto an interface area (103) between two parts (101, 102) to be joined. The beam (2) is projected onto the interface area (103) so as to produce a primary spot on the interface area (103), and the beam (2) is repetitively scanned in two dimensions in accordance with a scanning pattern so as to establish an effective spot (21) on the object, the effective spot (21) having a two-dimensional energy distribution. The effective spot (21) is displaced along a track (104) over the interface area (103) so as to progressively melt mating portions of the first part (101) and the second part (102) so as to form the weld joint (105). The effective spot (21) can feature an asymmetric energy distribution.

The invention relates to a laser brazing system, comprising a braze tool having a laser configured to emit a laser beam along a radiation path, and a braze wire tool being configured to guide a braze wire along a wire path intersecting the laser beam. The system comprises a jig comprising a first alignment surface and a first blocking surface, wherein the first alignment surface is configured to be in contact with the braze wire while the first blocking surface blocks at least a first part of the emitted laser beam, and a detector arranged in the radiation path and configured to detect the emitted light of the laser beam passing the jig.