Method of manufacturing a cutting member having an auxiliary layer
US6327784A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1999 |
| Grant date | Dec 11, 2001 |
| Priority date | — |
| Expiry date | Dec 22, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23H9/08
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The invention relates to a method of manufacturing a cutting member (3). According to the method, a single side 9 of a carrier 1 of the cutting member is provided with an auxiliary layer (11). The carrier is provided with a cutting edge (7) by means of an electrochemical machining device (19), an electrode (21) of the electrochemical machining device being arranged on a side (15) of the carrier remote from the auxiliary layer. According to the invention, the auxiliary layer is provided as far as the cutting edge to be provided on the carrier, and, after the cutting edge has been provided on the carrier, the auxiliary layer is maintained on the carrier as a layer which is functional for the cutting member. In this manner, the auxiliary layer has a double function and is thus utilized in a better way. In a preferred embodiment, the auxiliary layer mainly comprises SiO.sub.2 and has a thickness below 200 nm, preferably below 100 nm. In this embodiment, an edge (33) of the auxiliary layer, which is present at the location of the cutting edge of the carrier, constitutes an auxiliary cutting edge or even a main cutting edge of the cutting member, so that the cutting member has improved c…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.