Application of dry lubricant to forming dies and forging dies that operate with high force
US6006564A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 10, 1998 |
| Grant date | Dec 28, 1999 |
| Priority date | — |
| Expiry date | Dec 10, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21J3/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The present invention applies dry lubricant to appropriate components of a forming die of a stamping press to minimize frictional force against such components during operation of the forming die or to appropriate components of a forging die of a forging press to minimize shear force against such components during operation of the forging die. A layer of dry lubricant is applied to any one or more of the die, the punch, or the binder of a forming die of a stamping press, and a layer of hard chrome may also be plated thereon before the layer of dry lubricant is applied. A layer of dry lubricant is applied on the inner surface of a cavity within a forging die of a forging press of the present invention. A dry lubricant may also be applied on the outer surface of the punch of the forging press.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.