Wire drawing die
US5033334A · kind A · utility
Inventors
Key dates
| Filing date | May 10, 1990 |
| Grant date | Jul 23, 1991 |
| Priority date | — |
| Expiry date | May 10, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S76/12
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A wire drawing die blank is produced by providing an abrasive compact core, having top and bottom surfaces and a side surface, depositing a thin layer of high melting metal such as nickel, iron, chromium or cobalt on the side surface, the coating substantially following the contour of the side surface, providing a support having a hole extending therethrough, the hole having a cross-section larger than that of the core and allowing for the core to be located therein, locating the core in the hole leaving a space between the metal coating and the support, introducing a suitable braze, preferably in liquid form, in the space and causing the braze to bond the core to the support.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.