Adval Tech Holding Ag

Yasar Renkci

Rudolf Lüthi

Hans Jöhr

The invention relates to a method for the production of a rolled edge from an edge section () of a tube, wherein a flanging die is driven onto the edge section and flanges it into a roll. According to the invention, an initial area () of the edge section () is previously rolled in a positive fit manner by means of a forcibly controlled tool (). This prevents buckling of the initial area (), which has a controlled geometry as a result of rolling. The novel method is preferably used in the production of valve seats in so-called aerosol domes () for spray cans.

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Bern, Switzerland

Yasar Renkci