Adval Tech Holding Ag

Jürg Spieler

Urs Graf

Beat Jenzer

Sandro Bertogg

The invention relates to a method for producing a rolled edge from a cylindrical edge portion () of a pipe. In the method, a starting zone () of the edge portion () is rolled by a forcibly controlled tool (). A flanging die () then advances into the rolled edge portion () and flanges the rolled edge portion into a roll (). The method according to the invention is characterized in that the starting zone () of the edge portion () is folded over by the tool (), which comprises a folding die () and counterholder (), at an angle (&#x3b1;) in the range from 75-105&#xb0; from the axial direction () into a substantially radially peripheral flange (). The invention further relates to elements, in particular in the forme of an aerosol dome, having such rolled edges.

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Hergiswil, Switzerland

Jürg Spieler