Roughening tool and method for roughening a cylindrical surface
US11865628B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 27, 2019 |
| Grant date | Jan 9, 2024 |
| Priority date | — |
| Expiry date | Feb 27, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23C2220/60
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A roughening tool for roughening the cylindrical surface of a bore in a particular metallic workpiece, e.g. the piston running surface of a cylinder bore or cylinder liner in an internal combustion engine, by generating a defined microstructure of a plurality of circumferentially spaced apart circumferential microgrooves. The roughening tool has a tool main body which can be driven in rotation about an axis of rotation and a multiplicity of circumferentially cutting cutting tools arranged at a defined axial distance from one another on the tool main body. According to the invention, the cutting tools are each formed from a disc milling cutter and each disc milling cutter has at least one cutting element with a multiplicity of cutting teeth arranged at an axial distance from one another. In addition, a method for roughening a cylindrical surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.