To provide a clean bench that can prevent failure of optical components due to intrusion of dust and moisture, and enables to perform maintenance replacement of the optical unit, verification processes after replacement, etc. favorably, and a laser fiber oscillator mounting the same. A laser fiber oscillator includes a housing that accommodates an optical unit to be able to be drawn out; and a clean bench that is detachable to a side of the optical unit, and forms a closed space which is isolated from outside, above the optical unit that has been drawn out from the housing, in which a communication opening that is in communication with an internal space of the housing is formed in the clean bench.

Systems and methods disclosed herein relate to texturing a metal surface. A method for texturing a metal surface comprises disposing a first ceramic coating onto a first surface on the metal surface, applying a media to the first ceramic coating, disposing a second ceramic coating onto the media, and/or heat treating the metal surface for an end duration.

Systems and methods disclosed herein relate to texturing a metal surface. A method for texturing a metal surface comprises disposing a first ceramic coating onto a first surface on the metal surface, applying a media to the first ceramic coating, disposing a second ceramic coating onto the media, and/or heat treating the metal surface for an end duration.

Techniques for removing material from a substrate are provided. A laser beam is focused at a distance from the surface to be treated. A gas is provided at the focus point. The gas is dissociated using the laser energy to generate gas plasma. The substrate is then brought in contact with the gas plasma to enable material removal.

A method of heating a portion of an object includes the steps of projecting an energy beam onto a surface of the object so as to produce a primary spot on the surface, and repetitively scanning the beam in two dimensions in accordance with a scanning pattern so as to establish an effective spot on the surface, and displacing the effective spot in relation to the surface of the object to progressively heat the at least one selected portion of the object. Displacing the effective spot in relation to the surface of the object includes displacing the effective spot following a track featuring at least one change of direction.

The effective spot is maintained aligned with the track by modifying operation of a scanner in correspondence with the at least one change of direction.

A method of heating a portion of an object includes the steps of projecting an energy beam onto a surface of the object so as to produce a primary spot on the surface, and repetitively scanning the beam in two dimensions in accordance with a scanning pattern so as to establish an effective spot on the surface, and displacing the effective spot in relation to the surface of the object to progressively heat the at least one selected portion of the object. Displacing the effective spot in relation to the surface of the object includes displacing the effective spot following a track featuring at least one change of direction.

The effective spot is maintained aligned with the track by modifying operation of a scanner in correspondence with the at least one change of direction.

An article having a metal substrate and a channel in the metal substrate which is partly or completely open to the surface, wherein the cross section of the channel has a local width maximum (5) between the channel base (7) and the contact plane (1), measured parallel to the contact plane and at right angles to the longitudinal channel axis in the section perpendicular to the surface. (FIG. 1a)

The structure of a laser cleaning machine contains a laser generation device for cleaning a to-be-cleaned object, a platform for supporting the to-be-cleaned object under a projection path of the laser generation device, an image capture device configured on the laser generation device, and a cleaning and control device inside the image capturing device for setting a traversal path of the laser generation device and for processing information obtained by the image capturing device. The image capturing device contains a first capturing element and a second capturing element to a side of the first capturing element. The cleaning and control device obtains the location distribution and the precise coordinate of each contactor element on the to-be-cleaned object, and then determines an optimized traversal path and instructs the laser generation device to conduct cleaning accordingly so as to achieves high-quality and highly efficient cleaning.

A computer-implemented method for generating laser engraving instructions for performing a patterning process on a workpiece surface includes receiving a first input value indicating a first laser-pulse pattern and a second input value for a laser parameter associated with a laser-engraving system; and generating a machine-command sequence for the laser-engraving system based on the first input value and the second input value.

A laser irradiation device may include: a laser device configured to emit a pulse laser beam; beam scan optics configured to allocate the pulse laser beam emitted from the laser device to optical paths; beam homogenizers provided in the respective optical paths, each of the beam homogenizers being configured to homogenize distribution of light intensity of the pulse laser beam allocated to a corresponding optical path of the optical paths; and a controller configured to control the beam scan optics to allocate, for each pulse, the pulse laser beam emitted from the laser device to the corresponding optical path of the optical paths.