Apparatus and process for the fluid lubrication drawing of composite metal wires
US4270373A · kind A · utility
13Cited by
9References
18Claims
0Family size
Inventors
Key dates
| Filing date | May 30, 1979 |
| Grant date | Jun 2, 1981 |
| Priority date | — |
| Expiry date | May 30, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21C9/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A rod in the form of a composite metal wire having a harder metal core surrounded by a softer metal cladding is introduced together with lubricant into a die comprising an approach which includes a first frustoconical opening defining a vertical angle between 0.degree. and 5.degree. (exclusive of 0.degree.) and a second frustoconical opening defining a vertical angle between 6.degree. and 20.degree.. The lubricant is pressurized in the first frustoconical opening of the die approach while the rod is drawn under fluid lubrication.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.