公开(公告)号：US20210229160A1

公开(公告)日：2021-07-29

申请号：US17232276

申请日：2021-04-16

Applicant: FELSS Systems GmbH

Inventor： Werner MICHI ,  Joerg WACHTER ,  Dennis BEIHOFER ,  Philipp GRUPP ,  Michael MARRÉ

IPC: B21J9/06 ,  B21J9/20 ,  B21J5/08 ,  B21J5/02 ,  B21K1/06 ,  B21K21/12

Abstract: In a method for thickening a plastically deformable hollow body wall of a hollow body, with effective radial support of the unthickened hollow body wall on an outer supporting face of an outer mold and with effective radial support of the hollow body wall on an inner supporting face of an inner supporting body, the hollow body is acted on by a compressive force by two application members at application points by moving the application members towards one another in the axial direction with a compressing movement. The application points on the hollow body are distanced from one another in the axial direction. An expansion space of the outer mold is arranged between the application points. Due to the compressing movement of the application members, material of the hollow body wall between the application points is plasticised in the region of the expansion space of the outer mold, and plasticised material of the hollow body wall flows into the expansion space of the outer mold, thus thickening the hollow body wall.

公开(公告)号：US20180112744A1

公开(公告)日：2018-04-26

申请号：US15792901

申请日：2017-10-25

Applicant: FELSS Systems GmbH

Inventor： Michael MARRÉ ,  Arthur FAUTH ,  Stefan HALLER ,  Serjosha HEINRICHS ,  Henning WAGNER

IPC: F16H3/089 ,  H02K7/00 ,  B21K1/06 ,  F16C3/035

CPC classification number: F16H3/089 ,  B21K1/063 ,  F16C3/035 ,  F16C2380/26 ,  H02K7/003 ,  H02K7/006 ,  H02K2213/12

Abstract: A motor shaft of an electric motor is produced by producing and interconnecting a first module and an additional module of the motor shaft. The first module of the motor shaft and/or the additional module of the motor shaft is or are provided with a module-end connection element by cold forming and/or by warm forming and/or by hot forming a base module. The first module of the motor shaft produced in this way and the additional module of the motor shaft produced in this way are then interconnected by joining the module-end connection elements on both ends. A motor shaft produced according to this method is formed of a correspondingly configured first module and a correspondingly configured additional module.