Process of shaping the rim of a combustion chamber recess of a light-alloy piston
US4345138A · kind A · utility
3Cited by
9References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 24, 1980 |
| Grant date | Aug 17, 1982 |
| Priority date | — |
| Expiry date | Nov 24, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49249
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An improved process for shaping the edge of a combustion chamber recess in the piston head of a finish-machined light-alloy piston is disclosed wherein the piston is moved past the oscillating charged carrier beam at an angle of inclination of 40.degree. to 50.degree., the charged carrier beam is caused to act on that portion of the rim of the combustion chamber recess which is to be refined by being remelted and the charged carrier rays are moved over said portion only once. The process presents the formation of cracks at the edge of the chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.