Punching processing method and roll forming die used in this processing method
US5761944A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 6, 1996 |
| Grant date | Jun 9, 1998 |
| Priority date | — |
| Expiry date | Aug 6, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23D19/04
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
In a punching processing method, a punch chip having a roller shape is arranged in a punch chip holder rotatable around the vertical axis and can be rotated around the horizontal axis. A die chip having a roller shape is arranged in a die chip holder rotatable around the vertical axis and can be rotated around the horizontal axis. Punching processing of a work is performed, in cooperation with the punch chip and the die chip, by moving the work in the horizontal direction in a state in which the work is held between the punch chip and the die chip. Further, a roll forming die used in this punching processing method is also proposed. Accordingly, it is possible to perform various kinds of punching processings for a short time without causing any seam and easily perform processings of a circle and a curve in addition to processing of only a straight line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.