Patent · US Active

Method for surface treatment, roller bearing component and device

US11717922B2 · kind B2 · utility

0Cited by

7References

7Claims

0Family size

Assignee

Schaeffler Technologies AG & Co. KG · DE

Inventors

Martin Buschka · Herzogenaurach, DE
Silvio End · Heroldsberg, DE
André Kuckuk · Herzogenaurach, DE

Key dates

Filing date	Aug 28, 2019
Grant date	Aug 8, 2023
Priority date	—
Expiry date	Aug 28, 2039

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49689
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A method for surface treatment of a workpiece includes providing the workpiece with hardened workpiece surface, clamping the workpiece, removing material from the hardened workpiece surface with a material removal tool to produce a machined surface with first machining tracks, and rolling the machined surface with a rolling tool by overlapping the first machining tracks to produce a rolled surface with second machining tracks. A distance between the material removal tool and the rolling tool measured in an axial direction of the workpiece is varied in an oscillating manner. The material removal tool may be advanced in the axial direction at a constant speed and the rolling tool may be advanced in the axial direction at an oscillating speed, or the rolling tool may be advanced in the axial direction at a constant speed and the material removal tool may be advanced in the axial direction at an oscillating speed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.