Surface roughening method
US7568273B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2005 |
| Grant date | Aug 4, 2009 |
| Priority date | — |
| Expiry date | Mar 15, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/352
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The disclosure relates to surface roughening methods in which a cutting tool having a radial cutting blade with first and second cutting edges is fed along a longitudinal axis of an article while rotating the cutting tool about the axis. The first cutting edge forms a first machined pattern of peaks and valleys on a surface of the article, and the second cutting edge removes at least a portion of the peaks to form roughened fracture surfaces in a second machined pattern defining an arrangement of grooves, corresponding to the valleys, separated by lands, corresponding to the roughened fracture surfaces. The first and second walls may include concave regions within the grooves. The disclosure also provides cutting tools useful in practicing the methods, and cylindrical articles having interior or exterior surfaces roughened using the methods. The methods may have applications to fabrication of cylinder blocks for internal combustion engines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.