Method for calibrating tubular articles
US4339935A · kind A · utility
1Cited by
2References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 10, 1981 |
| Grant date | Jul 20, 1982 |
| Priority date | — |
| Expiry date | Apr 10, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02F1/10
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An apparatus for calibration of tubular articles, especially cylinder linings for internal combustion engines, manufactured through isostatic compression of pulverulent metallic materials, comprises piston means for effecting an axial displacement between the tubular article and a mandrel which it surrounds during the calibration. Preferably, the tubular article is first subjected to a rather modest radial inwardly directed pressure which is increased after an axial relative movement between the mandrel and the tubular article has taken place.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.