A method of forming an integrated circuit is described. The method first positions a semiconductor wafer in a processing chamber, and second, laser anneals at least a portion of the semiconductor wafer. The laser annealing includes tracing a first laser beam, in a first path having a first direction, across the at least a portion of the semiconductor wafer, tracing a second laser beam, in a second path having a second direction, opposite to and colinear with the first direction, across the at least a portion of the semiconductor wafer.

A method of forming a crack-free aluminum alloy structure using additive manufacturing is presented. A powder bed of precursor aluminum alloy powder is heated. The crack-free aluminum alloy structure is formed within a laser powder bed fusion system encompassing the powder bed during heating.

A method for producing a tube from metal is stated, by use of which method a metal strip by means of a drawing-off installation is moved in the longitudinal direction of said metal strip and is guided through a forming station in which said metal strip is formed to a slot tube having a slot running the in the longitudinal direction. The two edges of the metal strip abut to one another at the slot. Said two ends for producing a fully closed tube are welded to one another by use of a welding installation that is equipped with a laser. The slot tube after leaving the forming station is initially moved into the region of the laser and is then stopped. Thereafter, the regions of the edges of the slot tube that are to be welded to one another are pre-treated by the laser. Thereafter, the power of the laser is set to the welding power thereof that corresponds to the welding temperature, and by switching on the drawing-off installation the slot tube is simultaneously moved in the longitudinal direction of the latter.

A method of processing an object with a light beam includes the following steps: projecting a light beam onto the object via a first scanner so as to produce a heated area by locally heating the object; displacing the heated area along a track on the object; capturing images of a first portion of the object with a first camera, via the first scanner; and capturing images of a second portion of the object with a second camera, via a second scanner.

The first scanner and the second scanner are operated so that the first camera captures images of the heated area, whereas the second camera captures images of portions of the object behind and/or ahead of the heated area.

A laser cladding tool head and a machined surface sensing method thereof are provided for a computer numerical control (CNC) machining center. The laser cladding tool head has a temperature sensing module and a camera sensing module, which can sense the temperature, lightness, and profile of a molten pool, and then provide them to a computer numerical control unit for a feedback control, so as to increase the processing effect and quality of a work-piece.

The present disclosure provides three-dimensional (3D) printing methods, apparatuses, systems and software that effectuate formation of a robust 3D object comprising at least one metal alloy. The 3D object may be formed by 3D printing. The 3D object may comprise diminished defects (e.g., heat cracks). The alloy may be formed by diffusion. The diffusion may be a controlled diffusion. The control may comprise (e.g., real time) temperature control during the formation of the 3D object. The 3D object may comprise controlled crystal structure and/or metallurgical phases.

A laser power control device includes a storage unit that stores relational data having a measurement value of a heat radiation sensor, which measures intensity of heat radiation of an irradiation object irradiated with a laser beam from a laser machining device in association with a power value of the laser beam on a machining surface of the laser machining device.

A hybrid computer numerical control (CNC) machining center and a machining method thereof are provided. The hybrid CNC machining center has at least a cutting tool head, a laser cladding tool head, a laser surface heat treatment tool head, and a computer numerical control unit. The cutting tool head, the laser cladding tool head, and the laser surface heat treatment tool head are alternately installed in a tool holder of the hybrid CNC machining center. Users can accomplish cutting, laser cladding, and laser surface heat treatment operations for a work-piece just in one single machine, so that the work-piece is unnecessary to be moved between different machines. Therefore, the steps and the process time of the machining operations are substantially simplified.

Methods for manufacturing hot-stamped components are described. The method includes providing a hot-stamped component by hot forming die quenching, and selecting a first and a second portion of the hot-stamped component, wherein the first portion has a different width than the second portion. A laser system, wherein the laser system c includes one or more optical elements and a laser source for generating a laser beam. The laser system is moved along a length of the component. Finally, the laser beam is applied in a single pass onto the selected first and second portions using the laser system, wherein a laser beam spot size is adjusted during the application of the laser beam and is adapted to the widths of the first and second portions, and wherein a power of the laser beam is regulated based on the temperature measured in the hot-stamped component. The disclosure further relates to components obtained using such methods.

Provided is a laser build-up method capable of building up a layer with a uniform weld penetrating amount on first and second surfaces even when non-uniformity in distribution of supplied metallic powder due to the shape of a joint or the effect of gravity. A laser build-up method for a corner region formed by a first surface (11) and a second surface (12) in a different orientation from the first surface includes: supplying metallic powder (55) to the corner region; forming a melted part by performing weaving irradiation of a laser (25) on the first and second surfaces (11, 12) under a predetermined irradiation condition and melting the metallic powder (55); measuring a first temperature of the melted part of the first surface (11) and a second temperature of the melted part of the second surface (12); and setting the irradiation condition based on the first and second temperatures.