Method and apparatus for forming a hole for using cooling air in hole forming process
US5703340A · kind A · utility
4Cited by
6References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 20, 1995 |
| Grant date | Dec 30, 1997 |
| Priority date | — |
| Expiry date | Jul 20, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K26/382
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A hole forming apparatus for forming a hole through the side wall of a hollow elongated work without any adhesion of dross generated not only during hole forming operation to the inner wall surface of the work but also without any burning of a rust preventing oil. To cool the working location, cooling air is blown through the opening end of the work so as to generate a stream of cooling air in the interior of the work.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.