Laser cutting method of amorphous alloy strip steel rolled stock

Abstract

The invention discloses a laser cutting method for an amorphous alloy strip material. The amorphous alloy strip material positioned in a machining passage is fixed through a suction pore canal connected with a vacuum extractor; therefore, the method ensures that the amorphous alloy strip material can cling to the machining passage under the action of air pressure generated by the vacuum extractor and does not have dithering in the horizontal or vertical direction; furthermore, a laser is used to cut the amorphous alloy strip material positioned on a machining position. The method solves the difficult problem that the amorphous alloy strip material is easy to shift in the laser cutting process, ensures machining precision, has simple operation and reliable effect and is suitable for popularization and use.

Description

technical field [0001] The invention relates to the field of laser cutting, in particular to a laser cutting method for an amorphous alloy strip. Background technique [0002] It is reported in the prior art literature that after the metal is melted, the internal atoms are in an active state. Once the metal starts to cool, the atoms will gradually arrange in an orderly manner according to a certain crystal state as the temperature drops, forming a crystal. If the cooling process is rapid, the atoms freeze before they can rearrange, resulting in an amorphous alloy. Therefore, people use rapid solidification technology to prepare amorphous alloys. The high-temperature molten steel in the molten state is sprayed onto the high-speed rotating cooling roller, and the molten steel is rapidly cooled at a speed of one million degrees per second, and it takes only one thousandth of a second to reduce the molten steel at 1300°C to below 200°C. Amorphous ribbons are formed. [0003]...

AI Technical Summary

Problems solved by technology

[0006] 2. The precision of the shearing equipment is very high, if there is a large "offset", it will be "brittle";

[0007] 3 There are requirements for the width of the strip, and the strip with a width of less than 5mm cannot be processed;

[0008] 4. Mechanical shearing belongs to "contact" processing. When it is rolled to passivation, "burrs" will appear on the edge of the sheared strip. In some manufacturing fields that require high strip shape, this kind of strip will not be available;

[0009] 5. The shearing efficiency is low and the processing cost is high

[0016] However, if the existing laser cutting technology is used to cut the amorphous alloy strip, due to the ultra-thin thickness of the amorphous alloy strip, if it is not fixed during cutting, it will easily produce "drift", which will affect To the processing accuracy, but if it is fixed by conventional mechanical methods, it will affect the processing efficiency and cause damage to the strip itself

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