Patent ID: 9705387
Date: 2017-07-11
CPC Classifications: B21K,B23P,H02K,Y10T

Claim:
1. A method for producing a housing arrangement for an electric machine, the method comprising a step of shaping a region of a closure part in the form of an indent, and by the step of shaping the region, pressing material of the closure part against a housing part so as to create a non-positive connection between the closure part and the housing part, wherein the shaping step is carried out using a stamp which is rotated about a middle axis of the indent to be formed and is inclined at a varying angle with respect to the middle axis, wherein the stamp is advanced axially in relation to the middle axis and the contact point of the stamp on the region follows a hypocycloid, thereby the material essentially flows in an axial direction and tangential direction in relation to the middle axis.