Patent
High speed laser cutting of amorphous metals
TLDR
In this article, the laser beam is focused and directed at the amorphous metal material with a beam spot size of about 30 microns or less, and the focused laser beam and the material are moved relative to each other at a speed greater than about 18 inches per second.Abstract:
Laser cutting systems and methods are used to cut amorphous metal materials, such as thin amorphous metal ribbons or foils, with a relatively high speed. Embodiments of laser cutting systems and methods described herein also allow cutting with reduced crystallization, and thus reduced increases in thickness, at the cut edges and with reduced cracks or other cutting defects at the cut edges. A fiber laser, such as an Ytterbium fiber laser, is used to generate a laser beam with a power level greater than about 50 W. The laser beam is focused and directed at the amorphous metal material with a beam spot size of about 30 microns or less. The focused laser beam and the amorphous metal material are moved relative to each other at a speed greater than about 18 inches per second such that the focused laser beam cuts the amorphous metal material.read more
Citations
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Patent
Laser cutting method for amorphous alloy parts
TL;DR: In this article, a laser cutting method for amorphous alloy parts is described, which is not only simple in process and high in precision, and does not form new machining burrs, but also is good in machining consistency and suitable for use in industrial production.
Patent
Laser cutting metal foil with a polymer backing
TL;DR: In this paper, a polymer film is used as a carrier layer for laser cutting a metal foil, where the metal foil is ablated by the laser beam wavelength selected for laser-cutting and the polymer is a transparent polymer film.
Patent
Core member of rotating electrical machine, motor of air conditioner device, and method for manufacturing core member of rotating electrical machine
TL;DR: In this article, a core member (11, 31) of a rotating electrical machine (2) in which a plurality of plate members (17, 32) are stacked, wherein the plate members are formed by cutting an amorphous material.
Patent
Method of laser beam machining of a transparent brittle material and device embodying such method
Aliev Timur Alekperovich,Evtikhiev Nikolaj Nikolaevich,Kaptakov Mikhail Olegovich,Obronov Ivan Vladimirovich +3 more
TL;DR: In this paper, the authors proposed a method and device for forming a stressed edge in the substrate for cleaving of the substrate, to which end a track of cavities is formed through optically induced breakdown in the body of the material during its irradiation with a focused laser beam with a fixed focal distance during the course of angled scanning of the laser beam.
References
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Patent
Method and apparatus for direct laser cutting of metal stents
TL;DR: An improved expandable stent for implantation in a body lumen, such as an artery, and an improved method for making it from a single length of tubing are presented in this article.
Patent
Cutting amorphous metal by crystallization with a laser or electron beam
TL;DR: In this paper, a focused heat source such as a laser beam or electron beam is used to heat local regions of the material above the crystallization temperature and form brittle crystalline lines along which the material fractures when it is mechanically deformed as by passage through a set of rollers.
Patent
Method and apparatus for laser singulation of brittle materials
Yasu Osako,Daragh Finn +1 more
TL;DR: An improved method for singulation of electronic substrates into dice uses a laser to first form cuts in the substrate and then chamfers the edges of the cuts by altering the laser parameters as mentioned in this paper.
Patent
Method and apparatus to scribe a line in a thin film material using a burst of laser pulses with beneficial pulse shape
TL;DR: In this article, a series of laser pulses in a pulse train, each pulse with a beneficial temporal power shape, scribes a line in a thin film of material on a substrate, where the beneficial temporal pulse shape has a spike/plateau chair shape or a square pulse shape.
Patent
Heat assisted parting of amorphous alloys
TL;DR: In this paper, a bundle of amorphous alloy ribbons is held between clamps and bent over central supports, and a high energy beam is emitted from a source along a portion of the top strip to sever it.