Manufacturing method of multilayer syringe barrel
US-12076810-B2 · Sep 3, 2024 · US
Laser cutting method
US2025381622A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2025381622-A1 |
| Application number | US-202318878165-A |
| Country | US |
| Kind code | A1 |
| Filing date | Aug 1, 2023 |
| Priority date | Aug 8, 2022 |
| Publication date | Dec 18, 2025 |
| Grant date | — |
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- Title
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Abstract
Official abstract text for this publication.
A laser cutting method includes a first step of forming a first slit by cutting a sheet metal from a first point that is apart from an end of a part in an outward direction of the part by a first distance, to a second point that is apart from the end in the outward direction of the part by a second distance and is apart from the first point in a direction along the end by a third distance. The laser cutting method includes a second step of forming a second slit by cutting the sheet metal, to cause the second slit to extend from the second point toward the end and to reach a kerf formation region where a kerf for cutting the outer periphery is formed. The laser cutting method includes a third step of cutting the sheet metal along the end.
First claim
Opening claim text (preview).
1 . A laser cutting method comprising: forming, at each of a plurality of positions on an outer periphery or an inner periphery of a part to be cut out from a sheet metal, a first slit by cutting, with a laser beam, the sheet metal from a first point that is apart from an end of the part in an outward direction of the part by a first distance, to a second point that is apart from the end in the outward direction of the part by a second distance shorter than the first distance and is apart from the first point in a direction along the end by a third distance; forming a second slit by cutting the sheet metal with the laser beam, to cause the second slit to extend from the second point toward the end and to reach a kerf formation region where a kerf for cutting the outer periphery or the inner periphery is formed; and cutting the sheet metal with the laser beam along the end, to form the kerf in the kerf formation region. 2 . The laser cutting method according to claim 1 , wherein a tip of a beam spot during formation of the second slit is positioned within the kerf formation region. 3 . The laser cutting method according to claim 2 , wherein a region surrounded by the first slit, the second slit, and the kerf form a pressing piece, and when the kerf is formed, a free end of the pressing piece is bent toward the end to press the part and is welded to the part. 4 . The laser cutting method according to claim 1 , wherein the first slit is formed as a linear slit inclined relative to the end, so that the first slit is closer to the end when it is traced from the first point to the second point.
Assignees
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Classifications
Sheet panels · CPC title
- B23K26/38Primary
by boring or cutting · CPC title
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- What does patent US2025381622A1 cover?
- A laser cutting method includes a first step of forming a first slit by cutting a sheet metal from a first point that is apart from an end of a part in an outward direction of the part by a first distance, to a second point that is apart from the end in the outward direction of the part by a second distance and is apart from the first point in a direction along the end by a third distance. The …
- Who is the assignee on this patent?
- Amada Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B23K26/38. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Thu Dec 18 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).