A linear groove formation method including forming a coated resist on a surface of a steel sheet, irradiating two or more laser beams onto the surface of the steel sheet while scanning the laser beams in a direction intersecting the rolling direction of the steel sheet cyclically in a rolling direction of the steel sheet, and forming linear grooves by etching portions of the steel sheet. In the laser irradiating process, the coated resist is removed continuously in a sheet transverse direction of the steel sheet by using the laser beams irradiated from respective ones of two or more laser irradiation devices arranged in the sheet transverse direction, and the laser beams are irradiated by shifting centers of two of the laser beams irradiated from two of the laser two of the laser irradiation devices adjacent to each other in the sheet transverse direction.

A capacitor and methods of processing an anode metal foil are presented. The capacitor includes a housing, one or more anodes disposed within the housing, one or more cathodes disposed within the housing, one or more separators disposed between an adjacent anode and cathode, and an electrolyte disposed around the one or more anodes, one or more cathodes, and one or more separators within the housing. The one or more anodes each include a metal foil that includes a first plurality of tunnels through a thickness of the metal foil in a first ordered arrangement, the first ordered arrangement being a close packed hexagonal array arrangement, and having a first diameter, and a second plurality of tunnels through the thickness of the metal foil having a second ordered arrangement and a second diameter greater than the first diameter.

An optical film including an olefin resin layer that contains a cyclic olefin polymer and an ester compound. The ratio of the ester compound in the olefin resin layer is 0.1% by weight to 10% by weight. An average light absorbance of the optical film in a wavelength range of 9 μm to 11 μm is 0.1% or more.

A method for fixing a strip end segment of a metal strip wound into a coil to a strip winding of the coil arranged adjacent to the strip end segment. In order to enable the production of metal strip with improved quality, the strip end segment is fixed by materially bonding on the strip winding by means of a friction welding method.

The present invention relates to a composite container comprising a bottom film layer and a top film layer at least partially adhered to the bottom film layer. The top film layer is scored to form at least one resealable flap and at least one pull tab which is not adhered to the bottom film layer. The bottom film layer comprises at least one cavity opening. A cardboard layer is adhered on its lower surface to the upper surface of the top film layer, wherein the cardboard layer has at least one cavity opening which is substantially aligned with the scoring of the top film layer resealable flap and the cardboard layer is perforated to define a perimeter of at least one pull tab which is substantially aligned with and adhered, on its underside, to the upper surface of the top film layer pull tab.

The invention relates to a method to produce a metal blank with a predetermined contour, with the following steps: continuously moving the metal strip in a transport direction x; concurrently removing material from the surface of a top of a metal strip in at least one predetermined surface section by ablation by means of a first laser that is a component of a first removal device, and then concurrently cutting the metal strip along a cutting path corresponding to the contour of the metal blank by means of at least one second laser that is a component of a cutting device provided downstream of the first removal device; the surface section of an upstream metal blank being produced simultaneously with the cutting of a downstream metal blank.

Disclosed is a film cutting apparatus for cutting a film fabric having a multilayer structure with a plurality of film layers and including a release film layer positioned at an outermost layer of one side of the film layers, the film cutting apparatus including a laser unit including a laser head configured to form a first cutting line on a predetermined first film group by cutting the first film group by selectively irradiating the first film group with a laser beam to include some film layers except for the release film layer among the film layers, and a cutting unit including a cutter configured to form a single cutting line by connecting a second cutting line and the first cutting line on a predetermined second film group by cutting the second film group using a cutting blade to include some film layers including at least the release film layer among the film layers.

Provided, among other things, is a method of cutting and folding a planar substrate with a focused laser beam, directed from above the substrate, to form a shape with features in 3-dimensions, the method comprising: (a) executing from above laser cuts to the planar substrate so as to provide one or more a releasable segments; (b) executing from above one or more laser-executed upward folds to bend all or a portion of a releasable segment; and (c) executing from above one or more laser-executed downward folds to bend all or a portion of a releasable segment; wherein the cuts and folds are structured so that precursors to the 3D shape remain attached to the substrate while sufficient cuts and folds are made to form the 3D shape, and wherein the planar substrate is immobile during said steps (a) through (c), or is only moved in the plane of the substrate.

A method for producing a composite material by plating a band arrangement with a top side (O) and a bottom side (U), wherein the band arrangement comprises at least a first strip and a second strip, which form between them a filling channel, wherein the band arrangement comprises at least one filler strip, wherein the abovementioned band arrangement is plated, wherein a part of the filler strip, during the plating, is extruded into the filling channel; and a composite material, characterized in that it has been produced according to the method as disclosed.

The present invention discloses a method to calibrate a laser cutting machine without stopping the production. The method is adapted to laser cutting machine which use a conveyor belt to convey the sheets while cutting them with the laser. The method allows to place calibration marks at locations on the sheet that are convenient according to the production job, thereby minimising the waste of material.