Welded joint and automobile member
US-2024093708-A1 · Mar 21, 2024 · US
Spot-welding method and spot-welding device
US8993918B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8993918-B2 |
| Application number | US-201113137600-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 29, 2011 |
| Priority date | Sep 8, 2010 |
| Publication date | Mar 31, 2015 |
| Grant date | Mar 31, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
When spot-welding a workpiece including a thin plate, a first thick plate, and a second thick plate, the workpiece is clamped by a fixed electrode in contact with the second thick plate, a movable electrode in contact with the thin plate, and control-pressure applying unit set adjacent to the movable electrode and in contact with the thin plate. Pressure is applied to the second thick plate by the fixed electrode, and pressure and control pressure are respectively applied by the movable electrode and the control-pressure applying unit to the thin plate. The pressure from the fixed electrode is controlled to be smaller than the pressure from the movable electrode. The current density between the thin plate and the first thick plate increases.
First claim
Opening claim text (preview).
What is claimed is: 1. A spot-welding device for spot-welding a workpiece that includes a thin plate, a first thick plate, and a second thick plate that are sequentially stacked, the first thick plate and the second thick plate being thicker than the thin plate, the spot-welding device comprising: a base; a first welding electrode configured to face the second thick plate; a second welding electrode that is coaxially aligned with the first welding electrode and configured to f…
Assignees
Inventors
Classifications
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
- B23K11/115Primary
Operations & Transport · mapped topic
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Frequently asked questions
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- What does patent US8993918B2 cover?
- When spot-welding a workpiece including a thin plate, a first thick plate, and a second thick plate, the workpiece is clamped by a fixed electrode in contact with the second thick plate, a movable electrode in contact with the thin plate, and control-pressure applying unit set adjacent to the movable electrode and in contact with the thin plate. Pressure is applied to the second thick plate by …
- Who is the assignee on this patent?
- Sakai Kensuke, Kimura Keigo, Fuji Heavy Ind Ltd
- What technology area does this patent fall under?
- Primary CPC classification B23K11/115. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Mar 31 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).