A semiconductor mold laser cleaning device of an embodiment includes a laser generator oscillating a pulsed laser beam, an optical fiber transmitting the laser beam, a laser scanning module processing and transmitting the laser beam received through the optical fiber for cleaning the semiconductor mold, the laser scanning module including a laser beam collimator converting the laser beam scattered at one end of the optical fiber into parallel light, a Galvano laser scanner scanning the laser beam, a focal lens focusing the laser beam scanned by the Galvano laser scanner, and a final irradiation mirror redirecting the laser beam passed through the focal lens to deliver the redirected laser beam to the surface of the semiconductor mold, and a conveyance unit conveying the laser scanner module in an X-axis direction and/or a Y-axis direction such that the entire surface of the semiconductor mold can be cleaned.

A cleaning method involves, in a first step, emitting a first laser light toward the surface of a steel material targeted for cleaning to clean the surface of the steel material. Next, in a second step, a second laser light is emitted toward the surface of the steel material to remove an oxide layer formed on the surface of the steel material due to irradiation with the first laser light. In this step, the oxide layer formed on the surface of the steel material is removed, by emitting the second laser light at a power in a range that does not cause a new oxide layer to form on the surface of the steel material.

A manual laser cleaning device for removing foreign matter present on the surface of a workpiece according to an embodiment includes a laser generator oscillating a laser beam, a controller controlling the laser generator, and a laser cleaning head receiving the laser beam emitted from the laser generator through an optical fiber and irradiating a surface of a workpiece with the received laser beam. The laser cleaning head includes a head housing having a handle, a collimator placed in the head housing and collimating the laser beam scattered at one end of the optical fiber into parallel light, a high-speed Galvano scanner scanning the laser beam transmitted through the collimator at high speed using a mirror mounted on a scanning motor, and a focal lens focusing the laser beam scanned by the high-speed Galvano scanner at a focal distance and irradiating the surface of the workpiece with the laser beam.

A motorized apparatus for use in maintaining a pipe having a sidewall is provided. The motorized apparatus includes a body assembly sized to fit within and to travel along an interior cavity of the pipe. The body assembly includes a first end and a second end and extending along a longitudinal axis. The body assembly also includes a plurality of leg assemblies coupled circumferentially around the body assembly. Each leg assembly includes a telescoping portion, a bias member coupled to the telescoping portion, and a drive mechanism configured to interact with the sidewall as the body assembly travels along the pipe. The body assembly also includes at least one sensor configured to collect data associated with a force between the sidewall and the drive mechanism, and an actuator assembly coupled to each leg assembly and configured to independently actuate each the leg assembly.

A battery pack including a supporting structure, a battery cell housed within the supporting structure, a sleeve partially surrounding the battery cell, a bus bar, and a wire. The sleeve extends over a portion of a first end of the battery cell and has a laser-cut cutaway portion exposing a laser-cleaned first bonding area of the first end of the battery cell. The laser-cleaned first bonding area is positioned adjacent to an outer perimeter of the first end of the battery cell. The bus bar has a laser-cleaned second bonding area. The wire is bonded to the first and second laser-cleaned bonding areas to electrically connect the battery cell to the bus bar.

To provide a laser irradiation apparatus which suppresses adhesion of foreign matters to an optical element, a laser irradiation device includes: emission optical systems, which form a beam in which laser light generated by a laser oscillator converges on a predetermined beam spot, and continuously change an irradiation direction or the like of the beam; and a protective member which is arranged between the emission optical system and the beam spot, and protects the emission optical system from foreign matters scattered from an irradiation object side, and the protective member has an aperture through which the beam passes and moves in connection with a change of the irradiation direction or the like of the beam so that the aperture is positioned on a path of the beam.

A system for use in maintaining a pipe having a sidewall is provided. The system includes a motorized apparatus sized to fit within the pipe and configured to travel along the pipe through an interior cavity. The motorized apparatus includes a plurality of leg assemblies each including a first leg portion, a second leg portion, and a joint rotatably coupling the first leg portion to the second leg portion. A drive mechanism coupled to the joint is configured to interact with the sidewall. The system also includes an actuator assembly configured to independently position each leg assembly relative to a body assembly to adjust a radial position of the joint of the associated leg assembly relative to the body assembly. The system also includes a controller configured to send instructions to the actuator assembly based at least in part on at least one of a dimension of the interior cavity and a desired force on the sidewall.

Apparatus and methods of cleaning a sealing head (23) of a capsule filling line, comprising operating an ablation unit (10) to irradiate the sealing head (23) to ablate a residue off the sealing head (23).

Provided is an adhesive removing device for removing an adhesive for adhering a mask and a pellicle from the mask. The adhesive removing device includes: a laser irradiating unit configured to irradiate a laser beam to an adhesive layer formed between the mask and the pellicle; a controller configured to control a wavelength, a waveform, and an energy density of the laser beam, so as to remove the adhesive layer through emission of the laser beam; and an imaging unit configured to monitor a region to which the laser beam is irradiated.

A motorized apparatus for use in maintaining a pipe includes at least one drive portion including a body assembly, a plurality of leg assemblies coupled circumferentially around the body assembly, a plurality of drive mechanisms coupled to the plurality of leg assemblies, and a drive portion coupling mechanism. The motorized apparatus also includes at least one maintenance portion including a body, at least one maintenance device coupled to the body, and a maintenance portion coupling mechanism configured to engage the drive portion coupling mechanism. The at least one drive portion is releasably coupled to the at least one maintenance portion by engaging the drive portion coupling mechanism with the maintenance portion coupling mechanism. The drive portion coupling mechanism and the maintenance portion coupling mechanism are each configured to engage another coupling mechanism when the drive portion coupling mechanism and the maintenance portion coupling mechanism are uncoupled from each other.