Patent · US Active

Method for producing a threaded nut of a threaded drive, in particular a ball screw nut of a ball screw drive

US12253144B2 · kind B2 · utility

0Cited by

16References

15Claims

0Family size

Assignee

Schaeffler Technologies AG & Co. KG · DE

Inventors

Mario Kreutzer · Sonneberg, DE
Dieter Eckert · Fürth, DE
Paul Heinz · Forchheim, DE
Richard Baier · Dörflas, DE

Key dates

Filing date	Jun 25, 2020
Grant date	Mar 18, 2025
Priority date	—
Expiry date	Jun 17, 2041

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16H2025/249
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

The disclosure relates to a method for producing a threaded nut of a threaded drive. In a forming process, a sleeve is produced from a steel sheet which is suitable for case-hardening. A flange is integrally formed on the sleeve for welding to a machine part. A welding surface of the flange has a diffusion-inhibiting layer which inhibits the penetration of carbon into the welding surface. The sleeve is case-hardened, and the welding surface is then exposed by removing the diffusion-inhibiting layer. The sleeve can be bonded to a machine part on the exposed welding surface of the sleeve.

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