Method for reprofiling at least one rail
US12320075B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 4, 2020 |
| Grant date | Jun 3, 2025 |
| Priority date | — |
| Expiry date | Dec 4, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49726
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
In a reprofiling method of a rail (2) of a laid rail track (1) during a travel movement of a machining vehicle (13) along a rail track (1) in a section of its running surface (10) located on the rail head (5), a machining unit (14) includes a first and a second machining aggregate (16, 20). In a first machining step, material is removed in a milling process. In this process, a surface corrugation with corrugation crests (18) and corrugation troughs (19) is formed. In the second machining step, the surface corrugation is reduced by plastic deformation of the corrugation crests (18) by at least one forming force (21) directed towards the running surface (10) to be machined and applied in a pulsating manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.