A method for releasing an adherend of the present invention includes a first step and a second step. In the first step, a bonded product (100) including a pressure-sensitive adhesive layer (10), and an adherend (20) bonded thereto is prepared. The pressure-sensitive adhesive layer (10) includes a pressure-sensitive adhesive component and a gas generating agent. In the second step, a laser light (L) is irradiated to the pressure-sensitive adhesive layer (10)-side of the bonded product (100) to heat a part of the pressure-sensitive adhesive layer (10). A pressure-sensitive adhesive composition of the present invention is a composition used for forming the pressure-sensitive adhesive layer (10) in the method.

A method of removing contaminants from a surface of a gas turbine engine component protected by a diffusion coating that comprises an additive layer on the surface of the component and a diffusion zone in the surface of the component. The method includes subjecting the surface containing contaminants to laser beam pulses to remove contaminants from the component such that contaminants on the surface of the component are removed without damaging or removing the diffusion zone of the diffusion coating. Methods for controlled removal of at least a portion of a thickness of a diffusion coating from a coated superalloy component are also provided.

A device for descaling a metallic membrane of a tank for transporting and/or storing gas in liquid form includes: a rail secured to the metallic membrane; a head projecting a laser beam to descale the metallic membrane; a support interposed between the projection head and the rail and traveling along the rail; and a device allowing a movement with respect to the metallic membrane of a point of impact of the laser beam on the metallic membrane, the movement being different from the travel effected by the support on the rail.

An apparatus for cleaning a mask includes a chamber in which material deposition is performable on a substrate using the mask, the chamber including a transmission window through which light used in cleaning the mask within the chamber is irradiated into the chamber from outside thereof; within the chamber: a stage on which the substrate is disposed, the stage disposed in a plane defined by first and second directions crossing each other; and a material deposition unit from which a deposition material is provided to the substrate; and a light irradiation unit from which is provided the light used in cleaning the mask within the chamber. The light irradiation unit is disposed outside the chamber and irradiates the light into the chamber through the transmission window. The material deposition unit disposed within the chamber and the light irradiation unit disposed outside the chamber are reciprocally movable in the first direction.

An apparatus for cleaning a surface of an optical window includes a first electrode that is provided inside the optical window and is covered with a dielectric material forming the optical window. A second electrode is provided around the optical window and is exposed on at least one surface of the optical window. A power supply is electrically coupled between the first electrode and the second electrode. The apparatus further includes a controller that controls the power supply so as to generate dielectric barrier discharge along the surface of the optical window by applying a high-frequency or pulsed voltage between the first electrode and the second electrode.

A dry laser cleaning apparatus and a process thereof are provided. The dry laser cleaning apparatus includes a machine base, a laser cleaning module and a shielding housing. A base material is mainly placed on an object support platform of the machine base, so that a control module drives first parallel axial track groups, a second parallel axial track group and a vertical axial track group to move an optical fiber laser knife device of the laser cleaning module, and the optical fiber laser knife device irradiates a surface of the base material to clean the base material. Meanwhile, a height sensor device of the laser cleaning module and an orientation sensor device of the shielding housing are used to sense a position and a height of a to-be-cleaned object, so that the optical fiber laser knife device can automatically focus on the base material to optimize a cleaning effect.

A system for cleaning a tube is provided. The system includes an enclosure, a laser, and an actuator. The enclosure receives the tube. The laser is disposed within the enclosure and operative to ablate a substance disposed on a surface of the tube. The actuator is operative to move the tube relative to the laser.

A cleaning system for a vehicle includes a beam optics assembly that emits a laser beam to irradiate a region on a glass article of the vehicle, debris detection circuitry that detects debris accumulated over the region, and control circuitry. The control circuitry calibrates a set of parameters associated with the laser beam emitted from the beam optics assembly based on detection of the debris accumulated over the region on the glass article, controls an exposure level of the laser beam on the debris accumulated based on calibration of the set of parameters associated with the laser beam, wherein the exposure level is controlled based on pulsing the laser beam at a calibrated rate that limits penetration of the laser beam to a depth that is less than a thickness of the glass article, and removes the debris accumulated over the region on the glass article using the laser beam.

A laser tool apparatus includes a tool body; a fiber optic cable disposed in the tool body, the fiber optic cable including a laser head that emits a laser beam; a reshape optic disposed coaxially downstream of the fiber optic, the reshape optic reshaping the laser beam emitted from the laser head; and a flexible cable attached to the reshape optic. The flexible cable flexibly orients the laser beam at a desired angle within a borehole.

Disclosed is a method for extending service life of a sacrificial-layer-free aluminum alloy wheel by laser shock, comprising: performing finite element analysis each position of the wheel under actual working conditions; connecting the to-be-peened wheel to a fixture on a robot; determining laser shock peening parameters; upon laser shock, performing cleaning treatment on the shocked wheel to remove surface ablating; and performing paint spraying treatment on the processed aluminum alloy wheel. The method provided by the present disclosure can not only improve surface hardness of the aluminum alloy wheel, but also form a residual compressive stress layer on a subsurface, thereby restraining crack propagation, prolonging the service life of an aluminum alloy wheel hub and improving stability of the hub.