Patent · US Active

Method and device for the impact treatment of transition radii of a crankshaft

US11141819B2 · kind B2 · utility

0Cited by

5References

17Claims

0Family size

Assignee

MASCHINENFABRIK ALFING KESSLER GMBH

Inventors

Alfons Reeb · Aalen, DE
Jochen Schmidt · Trochtelfingen, DE
Konrad Grimm · Aalen, DE

Key dates

Filing date	May 24, 2018
Grant date	Oct 12, 2021
Priority date	—
Expiry date	Jul 29, 2038

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC21D9/30
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

The invention relates to a method for the impact treatment of transition radii (8) of a crankshaft (4), in particular transition radii (8) between connecting rod bearing journals (5) and crank webs (7) and/or transition radii (8) between main bearing journals (6) and the crank webs (7) of the crankshaft (4). In order to apply an impact force (FS) to at least one of the transition radii (8) along the respective transition radius (8) circulating about the crankshaft (4) in an annular manner, a heavily loaded region (BMAX), a lightly loaded region (BMIN), and intermediate regions (BZW) lying therebetween are defined, and an impact treatment is then carried out such that the impact force (FS) introduced into the intermediate regions (BZW) is increased in the direction of the heavily loaded region (BMAX).

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