Connecting element for the non-detachable connection of at least two components and composite arrangement
US-2020300283-A1 · Sep 24, 2020 · US
Friction joining element
US12429080B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12429080-B2 |
| Application number | US-202218282898-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 17, 2022 |
| Priority date | Mar 23, 2021 |
| Publication date | Sep 30, 2025 |
| Grant date | Sep 30, 2025 |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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- CPC / IPC classifications
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Abstract
Official abstract text for this publication.
A friction joining element for mechanically joining a sheet set prepared by stacking two or more metal sheets including a high strength steel sheet as an upper sheet. The friction joining element includes a mandrel having an overall length adjusted to be equal to or less than the total thickness of the sheet set, and a collar disposed at an upper portion of the mandrel. The friction joining element has a screw thread on a side surface of a head-side portion of the mandrel.
First claim
Opening claim text (preview).
The invention claimed is: 1. A friction joining element for mechanically joining a sheet set prepared by stacking two or more metal sheets including a high strength steel sheet as an upper sheet, the friction joining element comprising: a mandrel having an overall length adjusted to be equal to or less than a total thickness of the sheet set; a collar disposed at an upper portion of the mandrel, the collar having an umbrella shape; and a screw thread disposed on a side surface of a head-side portion of the mandrel, wherein: the screw thread includes a plurality of ridges formed continuously in a length direction of the mandrel, a plurality of ridges of the screw thread in a side surface region of the mandrel is from 2 to 20 inclusive, a distance between adjacent ridges of the plurality of ridges is in a range of 100 to 500 μm; an inclination angle of the screw thread is between 1° and 180°, and a forward end portion of the mandrel has a tapered shape protruding forward with an angle of the tapered shape being between 120 and 180°. 2. The friction joining element according to claim 1 , wherein a coating layer is provided on a surface of the screw thread.
Assignees
Inventors
Classifications
Specially-shaped heads (special shape in order to rotate the bolt F16B23/00 {; separate hook adaptors for bolts F16B43/025}) · CPC title
Surface treatment of parts furnished with screw-thread, e.g. for preventing seizure {or fretting (corrosion preventing means F16B33/008; settable coatings for locking threaded members F16B39/225; deformable coatings for locking threaded members F16B39/34)} · CPC title
- B23K20/12Primary
the heat being generated by friction; Friction welding · CPC title
with specially-shaped head or shaft in order to fix the bolt on or in an object (locking the bolt against turning in the object by the use of accessory parts F16B39/00) · CPC title
- F16B5/08Primary
by means of welds or the like (welding B23K) · CPC title
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- What does patent US12429080B2 cover?
- A friction joining element for mechanically joining a sheet set prepared by stacking two or more metal sheets including a high strength steel sheet as an upper sheet. The friction joining element includes a mandrel having an overall length adjusted to be equal to or less than the total thickness of the sheet set, and a collar disposed at an upper portion of the mandrel. The friction joining ele…
- Who is the assignee on this patent?
- Jfe Steel Corp
- What technology area does this patent fall under?
- Primary CPC classification B23K20/12. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Sep 30 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).