Method for manufacturing honeycomb structure forming die
US8779332B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 16, 2011 |
| Grant date | Jul 15, 2014 |
| Priority date | — |
| Expiry date | Oct 6, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23H2200/30
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
There is provided a method for manufacturing a honeycomb structure forming die, the method includes: an introduction hole forming step for forming, in plate-shaped die substrate having one side end face and the other side end face, a plurality of introduction holes for introducing kneaded clay on the other side end face to function as a kneaded clay introduction face, and a slit forming step for forming slits communicating with the introduction holes in order to form the partition walls of the honeycomb structure by extruding the kneaded clay by performing a comb-like electro-discharge machining by a comb-like electrode 21 where a plurality of plate-shaped protrusion electrodes 23 corresponding with width of the slits are disposed on the one side end face to function as a kneaded clay formation face of the die substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.