Title:
ロール縁部を形成する方法
Document Type and Number:
Japanese Patent JP7261228
Kind Code:
B2
Abstract:
The invention relates to a method for producing a rolled edge from a cylindrical edge portion (11) of a pipe. In the method, a starting zone (14) of the edge portion (11) is rolled by a forcibly controlled tool (30). A flanging die (21) then advances into the rolled edge portion (11) and flanges the rolled edge portion into a roll (12). The method according to the invention is characterized in that the starting zone (14) of the edge portion (11) is folded over by the tool (30), which comprises a folding die (37) and counterholder (34), at an angle (α) in the range from 75-105° from the axial direction (45) into a substantially radially peripheral flange (41). The invention further relates to elements, in particular in the forme of an aerosol dome, having such rolled edges.
Inventors:
Beth Jenzer
Sandro Bertog
Urs Graf
Jörg Spieler
Sandro Bertog
Urs Graf
Jörg Spieler
Application Number:
JP2020518699A
Publication Date:
April 19, 2023
Filing Date:
September 27, 2018
Export Citation:
Assignee:
Advar Tech Holding Arge
International Classes:
B21D51/26
Domestic Patent References:
| JP49049789A | ||||
| JP2004330246A | ||||
| JP2017074614A |
Foreign References:
| US20100116775 |
Attorney, Agent or Firm:
Patent Attorney Corporation Peace International Patent Office