A beam vibrating mechanism vibrates a laser beam in a parallel direction with a cutting advancing direction of a sheet metal. An amplitude amount of the laser beam is Qx, a radius of a first circular region having an area occupying 86% beam energy at a center side of total beam energy in a sectional area of the laser beam on a top surface of the sheet metal is rtop, and a radius of a second circular region having an area occupying 86% beam energy at a center side of total beam energy in a sectional area of the laser beam in a bottom surface of the sheet metal is rbottom. A calculation value Va is expressed by the expression: Va=(Qx+rtop+√{square root over (2)}×rbottom). When a standard deviation of the calculation value Va at a time of cutting sheet metals of a plurality of plate thicknesses is Vasd, a nozzle having a diameter of an opening between a minimum value obtained by 2Va−Vasd, and a maximum value obtained by 2.5 Va+Vasd is used as a nozzle attached to a machining head.

A laser processing method for laser processing of a workpiece made of a base material and a fiber reinforced composite material containing fibers having a thermal conductivity and a processing threshold higher than physical properties of glass fibers. The laser processing method includes a step of processing the workpiece by forming a plurality of through-holes extending through the workpiece by irradiating the workpiece with pulsed laser light from a processing head while relatively moving the workpiece and the processing head in a predetermined cutting direction. The pulsed laser light has a pulse width smaller than 1 ms and an energy density capable of forming each of the through-holes by a single pulse.

An apparatus and method of fabricating particles composed of metals, conducting polymers, semiconductors, and composites of such materials are provided. The method includes application of an editing tool, such as a laser, for patterning an editable structure that mounted on an electrically conductive substrate. Portions of the editable structure may be removed so as to allow electrodeposition.

An apparatus and method of fabricating particles composed of metals, conducting polymers, semiconductors, and composites of such materials are provided. The method includes application of an editing tool, such as a laser, for patterning an editable structure that mounted on an electrically conductive substrate. Portions of the editable structure may be removed so as to allow electrodeposition.

Provided are a machining device (10), a machining unit, and a machining method that irradiate a workpiece (8) with a laser beam to perform cutting or boring machining of the workpiece (8). The invention has a laser output device (12), a guiding optical system (14) that guides a laser beam, and an irradiating head (16) that guides a laser beam and irradiates the workpiece (8) with the laser beam. The irradiating head (16) integrally rotates a first prism (52) and a second prism (54) with a rotation mechanism, thereby rotating a light path of the laser beam around a rotational axis of the rotation mechanism and irradiating the workpiece (8) while rotating the position of irradiation to the workpiece. A control device (22) calculates an allowable rotational frequency range of the laser beam on the basis of the relationship between an allowable thickness of a remelted layer of the workpiece (8) and a rotational frequency, or the relationship between an allowable thickness of an oxidization layer of the workpiece and the rotational frequency, determines a rotational frequency included in the allowable rotational frequency range as the rotational frequency of the rotation mechanism, and rotates the rotation mechanism at the determined rotational frequency, thereby enabling high-precision machining to be performed with a simple configuration.

Provided are a machining device (10), a machining unit, and a machining method that irradiate a workpiece (8) with a laser beam to perform cutting or boring machining of the workpiece (8). The invention has a laser output device (12), a guiding optical system (14) that guides a laser beam, and an irradiating head (16) that guides a laser beam and irradiates the workpiece (8) with the laser beam. The irradiating head (16) integrally rotates a first prism (52) and a second prism (54) with a rotation mechanism, thereby rotating a light path of the laser beam around a rotational axis of the rotation mechanism and irradiating the workpiece (8) while rotating the position of irradiation to the workpiece. A control device (22) calculates an allowable rotational frequency range of the laser beam on the basis of the relationship between an allowable thickness of a remelted layer of the workpiece (8) and a rotational frequency, or the relationship between an allowable thickness of an oxidization layer of the workpiece and the rotational frequency, determines a rotational frequency included in the allowable rotational frequency range as the rotational frequency of the rotation mechanism, and rotates the rotation mechanism at the determined rotational frequency, thereby enabling high-precision machining to be performed with a simple configuration.

Systems and methods suitable for shaping and cutting materials. Such a system includes first and second carriage units that are independently operable to travel in a travel direction parallel to a longitudinal axis of a table supporting the material. The first and second carriage units have first and second arms, respectively. A cutting device coupled to the first arm forms a slit in the material, and a deburring device coupled to the second arm forcibly removes burrs from the slit. The deburring device is behind the cutting device relative to the travel direction and forcibly removes burrs in the travel direction toward a breakthrough point of the slit. The second carriage unit oscillates parallel to the travel direction so that the deburring device moves toward and away from the breakthrough point of the slit to remove burrs at the breakthrough point.

Systems and methods suitable for shaping and cutting materials. Such a system includes first and second carriage units that are independently operable to travel in a travel direction parallel to a longitudinal axis of a table supporting the material. The first and second carriage units have first and second arms, respectively. A cutting device coupled to the first arm forms a slit in the material, and a deburring device coupled to the second arm forcibly removes burrs from the slit. The deburring device is behind the cutting device relative to the travel direction and forcibly removes burrs in the travel direction toward a breakthrough point of the slit. The second carriage unit oscillates parallel to the travel direction so that the deburring device moves toward and away from the breakthrough point of the slit to remove burrs at the breakthrough point.

A method of forming a cutting element for an earth-boring tool may include directing at least one energy beam at a surface of a volume of polycrystalline superabrasive material including interstitial material disposed in regions between inter-bonded grains of polycrystalline superabrasive material. The method includes ablating the interstitial material with the at least one energy beam such that at least a portion of the interstitial material is removed from a first region of the volume of polycrystalline superabrasive material without any substantial degradation of the inter-bonded grains of superabrasive material or of bonds thereof in the first region.

A method of forming a cutting element for an earth-boring tool may include directing at least one energy beam at a surface of a volume of polycrystalline superabrasive material including interstitial material disposed in regions between inter-bonded grains of polycrystalline superabrasive material. The method includes ablating the interstitial material with the at least one energy beam such that at least a portion of the interstitial material is removed from a first region of the volume of polycrystalline superabrasive material without any substantial degradation of the inter-bonded grains of superabrasive material or of bonds thereof in the first region.