Method for producing a ring-shaped or plate-like element
US-10684102-B2 · Jun 16, 2020 · US
Method for manufacturing metal fitting, method for manufacturing spark plug, and method for manufacturing sensor
US9889496B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9889496-B2 |
| Application number | US-201515301088-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 22, 2015 |
| Priority date | Jun 27, 2014 |
| Publication date | Feb 13, 2018 |
| Grant date | Feb 13, 2018 |
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- Title
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Abstract
Official abstract text for this publication.
A method of manufacturing a metal fitting having a tool engagement portion engageable with a tool. The manufacturing method includes a cold forging process, wherein the cold forging process includes: a step (a) of forming a body portion having a first maximum length and a butt portion being continuous to the body portion and having a second maximum length larger than the first maximum length; and a step (b) of drawing at least a part of the butt portion in the axis direction, thereby forming the tool engagement portion.
First claim
Opening claim text (preview).
Having described the invention, the following is claimed: 1. A manufacturing method of a metal fitting, the metal fitting comprising a tool engagement portion engageable with a tool, the manufacturing method comprising a cold forging process, wherein the cold forging process includes: a step (a) of forming a body portion, a butt portion and a leg portion, the body portion having a first maximum length, the butt portion being continuous to the body portion and having a second maximum length larger than the first maximum length, the leg portion being continuous to the body portion and having an outer diameter smaller than the first maximum length; and a step (b) of drawing at least a part of the butt portion in an axis direction of the metal fitting, thereby forming the tool engagement portion. 2. The manufacturing method of the metal fitting according to claim 1 , further comprising a cutting process of cutting at least a part of the butt portion, wherein, in the step (b), the tool engagement portion is formed on a region of the butt portion including a first end thereof not adjacent to the body portion. 3. The manufacturing method of the metal fitting according to claim 1 , further comprising a cutting step of cutting at least a part of the butt portion, wherein, in the step (b), the tool engagement portion is formed on a region of the butt portion including a second end thereof adjacent to the body portion such that a maximum cross-sectional diagonal dimension of the tool engagement portion is larger than the first maximum length of the body portion. 4. The manufacturing method of the metal fitting according to claim 1 , further comprising a cutting step of cutting at least a part of the butt portion, wherein, in the step (b), the tool engagement portion is formed such that a maximum cross-sectional diagonal dimension of the tool engagement portion is larger than the first maximum length of the body portion. 5. The manufacturing method of the metal fitting according to claim 1 , wherein at least parts of the body and butt portions of the metal fitting manufactured by the manufacturing method have the same maximum lengths as those of the body and butt portions formed in the step (a). 6. A manufacturing method of a spark plug, comprising: obtaining a metal fitting by the manufacturing method according to claim 1 . 7. A manufacturing method of a sensor, comprising: obtaining a metal fitting by the manufacturing method according to claim 1 .
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- What does patent US9889496B2 cover?
- A method of manufacturing a metal fitting having a tool engagement portion engageable with a tool. The manufacturing method includes a cold forging process, wherein the cold forging process includes: a step (a) of forming a body portion having a first maximum length and a butt portion being continuous to the body portion and having a second maximum length larger than the first maximum length; a…
- Who is the assignee on this patent?
- Ngk Spark Plug Co
- What technology area does this patent fall under?
- Primary CPC classification B21K21/08. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Feb 13 2018 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).