Pressed component manufacturing method and press apparatus
US-2019381553-A1 · Dec 19, 2019 · US
Method of producing a separator
US9364883B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9364883-B2 |
| Application number | US-201113209556-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 15, 2011 |
| Priority date | Sep 2, 2010 |
| Publication date | Jun 14, 2016 |
| Grant date | Jun 14, 2016 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
This method is for producing a compact (fuel-cell separator) having a projection by pressing a plate by a die and a punch. A tip end surface of the punch presses the plate to form an overhang, and then a sidewall of the overhang is sandwiched between an inclined surface of the die and an inclined surface of the punch, and in this state the sidewall is rolled, thereby forming the projection.
First claim
Opening claim text (preview).
What is claimed is: 1. A producing method for producing a separator having a projection by pressing a plate by a die and a punch, wherein a tip end surface of the punch presses the plate to form an overhang, and then a sidewall of the overhang is sandwiched between an inclined surface of the die and an inclined surface of the punch, and in this state the sidewall is rolled, thereby forming the projection, the die and the punch roll the sidewall of the overhang in a state where the die and the punch are separated from a bottom wall of the overhang, an inclination angle of the inclined surface of the die is 15° to 25°, and an inclination angle of the inclined surface of the punch is 15° to 25°, the rolling of the overhang occurs from a position where the punch presses the plate to form the overhang when the bottom wall of the overhang separates from the tip end surface of the punch to a closed position where the die and the punch are closed, and in the closed position, the bottom wall of the overhang is separated from the tip end surface of the punch and from a flat bottom end surface of the die. 2. The producing method according to claim 1 , wherein a ratio, between a distance from the inclined surface of the die to the inclined surface of the punch in, a state where the die and the punch are closed, and a plate thickness of the plate is 0.2 to 0.8. 3. The producing method according to claim 1 , wherein the separator is one of a fuel-cell separator, an automotive component or a home electrical appliance component. 4. The producing method according to claim 1 , wherein the state where the die and the punch are separated from the bottom wall of the overhang is maintained until the die and the punch are closed. 5. The producing method according to claim 4 , wherein the die and the punch roll the sidewall of the overhang in a state where the die and the punch are separated from a portion of the plate between adjacent overhangs, and the state where the die and the punch are separated from the portion of the plate between adjacent overhangs is maintained until the die and the punch are closed. 6. The producing method according to claim 1 , wherein the material of the plate is one of titanium, titanium alloy and stainless steel.
Assignees
Inventors
Classifications
Manufacturing or production processes characterised by the final manufactured product · CPC title
Fuel cells · CPC title
Cross-Sectional Technologies · mapped topic
- B21D22/21Primary
without fixing the border of the blank · CPC title
Metals or alloys · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9364883B2 cover?
- This method is for producing a compact (fuel-cell separator) having a projection by pressing a plate by a die and a punch. A tip end surface of the punch presses the plate to form an overhang, and then a sidewall of the overhang is sandwiched between an inclined surface of the die and an inclined surface of the punch, and in this state the sidewall is rolled, thereby forming the projection.
- Who is the assignee on this patent?
- Watanabe Takuma, Ushida Kohei, Fujimura Shirou, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification B21D22/21. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jun 14 2016 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).