Method for machining seal-mounting groove in metal plate
US9592617B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 7, 2013 |
| Grant date | Mar 14, 2017 |
| Priority date | — |
| Expiry date | Oct 7, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The invention provides a processing method of a seal mounting groove in a metal plate, which can form the seal mounting groove with a small pressing pressure, whereby it is possible to respond to request for easily manufacturing and achieving a low cost, and can achieve a problem caused by a protruding phenomenon of a metal which plastically deforms going with formation of the seal mounting groove. In order to achieve the object, in a method of pressing a seal mounting groove by using a punch on a plane of a metal plate, a leading end portion of the punch is formed into an inclined surface shape which is inclined in a punch width direction, and the seal mounting groove which inclines in a groove width direction in its groove bottom portion and is formed into an inclined surface shape is formed by pressing while using the punch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.