A method for laser engraving a three-dimensional pattern into a surface of a workpiece, the method comprising: positioning a laser-engraving head to engrave a first engraving region of the workpiece; and applying a first plurality of laser pulses to a set of first predetermined locations within the first engraving region, wherein the first set of predetermined locations within the first engraving region is based on a probability distribution function that corresponds to a portion of the three-dimensional pattern that is associated with the first engraving region.

A machining system includes a laser irradiation device, a camera that captures an image of a workpiece, and a display that displays the image captured by the camera. The machining system includes a robot control device that controls the camera and the display. The camera captures the image of the workpiece before machining. The robot control device calculates a laser-beam irradiation position on the workpiece and virtually displays the laser-beam irradiation position on the display so as to overlap the workpiece image captured by the camera.

Methods for processing a metal substrate for use in a power electronics device are provided. In one example, the method includes placing a metal substrate on a support associated with a laser system. The method includes performing a pulsed laser treatment process on at least a portion of the surface of the metal substrate. The pulsed laser treatment process exposes the at least a portion of the surface of the metal substrate to a plurality of laser pulses to modify a surface roughness of the at least a portion of the surface of the metal substrate. After performing the pulsed laser treatment process, the method includes creating a metallized interface for coupling an electrical component to the metal substrate at the at least a portion of the surface of the metal substrate.

A robot controller controls an arc motion of a robot. The robot controller includes an interpolation point setting unit that sets an interpolation point between movement points in an operation program. The robot controller includes a movement-point angle calculation unit that calculates an angle relating to a reference direction for determining the orientation of the robot, and an interpolation-point angle calculation unit that calculates an angle relating to the reference direction at an interpolation point by interpolating angles relating to the reference direction at the movement points. The reference direction is a direction independent from the positions of the movement points and is set in an operation program in a predetermined coordinate system.

The present disclosure generally relates to additive manufacturing systems and methods on a large-scale format. One aspect involves a build unit that can be moved around in three dimensions by a positioning system, building separate portions of a large object. The build unit has an energy directing device that directs, e.g., laser or e-beam irradiation onto a powder layer. In the case of laser irradiation, the build volume may have a gasflow device that provides laminar gas flow to a laminar flow zone above the layer of powder. This allows for efficient removal of the smoke, condensates, and other impurities produced by irradiating the powder (the “gas plume”) without excessively disturbing the powder layer. The build unit may also have a recoater that allows it to selectively deposit particular quantities of powder in specific locations over a work surface to build large, high quality, high precision objects.

A laser processing system and a laser processing method that reduce irregularities on a cutting surface caused by a variation in a heat affected zone or a difference in the heat affected zone due to processing by a laser beam. The laser processing system is provided with: a laser processing device that scans a composite material containing reinforced fibers and a resin with a laser beam to process the composite material; and a control device that controls the laser processing device. The control device calculates a scanning angle formed by a fiber direction that is a direction of the reinforced fibers and a scanning direction that is a direction in which the laser beam is caused to scan, calculates a scanning condition of the laser beam on the basis of the calculated scanning angle, and controls scanning of the laser beam on the basis of the calculated scanning condition.

A reflow melting system for reflow melting a metal coating on an electrical contact area of a terminal includes a laser head for emitting a laser light onto the metal coating on the terminal to heat and melt the metal coating. A remote control terminal is provided in communication with the laser head for adjusting at least one working parameter of the laser head for optimizing the melting effect of the metal coating.

A laser soldering system is disclosed. The laser soldering system has a moving system, a gripper mounted on the moving system, a presser mounted on the moving system and having a transparent member, and a laser. The gripper grips an object and places the object at a target location on a product to be soldered. The transparent member presses the object against the product. The laser emits a laser beam through the transparent member to solder the object to the target location while the object is pressed against the product.

A system and method for automated laser ablation includes an end effector for performing laser ablation at a location with restricted access. The systems and methods of the present disclosure specifically provide for a miniature laser end effector which may be inserted through a port or bore in order to ablate the surface of an internal component of a complex assembly. In several embodiments of the present subject matter, the end effector is mounted on a machine and coupled to a laser system.

A method for repairing solder joint leakages on a connection unit designed to feed cooling water into hollow metallic stator bars of a stator winding of an electrical machine. A welding or soldering apparatus is designed for carrying out the method.