EP 1233837 A2 20020828 - METHOD FOR FORMING AN INITIAL PROFILE OR A TOOL OF THE KIND AND A PROFILE THEREFOR
Title (en)
METHOD FOR FORMING AN INITIAL PROFILE OR A TOOL OF THE KIND AND A PROFILE THEREFOR
Title (de)
VERFAHREN ZUM UMFORMEN EINES AUSGANGSPROFILS OD.DGL. WERKSTÜCKES SOWIE PROFIL DAFÜR
Title (fr)
PROCEDE POUR DEFORMER UN PROFILE DE DEPART OU UNE PIECE ANALOGUE, ET PROFILE POUR LA MISE EN OEUVRE DE CE PROCEDE
Publication
Application
Priority
- CH 0000594 W 20001108
- DE 19955694 A 19991118
Abstract (en)
[origin: WO0136121A2] The invention relates to a method for forming an initial profile or a tool of the kind that is provided with a profile chamber, by means of inner high pressure in such a way that an end profile is formed, whereby said pressure is generated in the sealed profile chamber by an active means that can flow. Said method is especially used for forming until the end profile rests on the wall of the forming chamber. Before forming by means of inner high pressure, the initial profile is formed at a distance to the free ends thereof and crosswise in relation to the longitudinal axis thereof to reach a cross-section with advantageous bending properties. The middle line of the component is formed and the cross-section thereof is deformed by means of inner high pressure during bending.
[origin: WO0136121A2] The invention relates to a method for forming an initial profile (10, 10x, 15, 16) or a tool of the kind that is provided with a profile chamber, by means of inner high pressure in such a way that an end profile is formed, whereby said pressure is generated in the sealed profile chamber by an active means that can flow. Said method is especially used for forming until the end profile rests on the wall of the forming chamber. Before forming by means of inner high pressure, the initial profile is formed at a distance to the free ends thereof and crosswise in relation to the longitudinal axis thereof to reach a cross-section with advantageous bending properties. The middle line of the component is formed and the cross-section thereof is deformed by means of inner high pressure during bending.
IPC 1-7
IPC 8 full level
B21D 1/00 (2006.01); B21D 7/00 (2006.01); B21D 26/033 (2011.01)
CPC (source: EP US)
B21C 37/065 (2013.01 - EP US); B21D 7/00 (2013.01 - EP US); B21D 26/033 (2013.01 - EP US)
Citation (search report)
See references of WO 0136121A2
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0136121 A2 20010525; WO 0136121 A3 20011122; AT E246059 T1 20030815; CA 2391444 A1 20010525; DE 19955694 A1 20010523; DE 50003146 D1 20030904; EP 1233837 A2 20020828; EP 1233837 B1 20030730; ES 2203523 T3 20040416; US 6810705 B1 20041102
DOCDB simple family (application)
CH 0000594 W 20001108; AT 00971201 T 20001108; CA 2391444 A 20001108; DE 19955694 A 19991118; DE 50003146 T 20001108; EP 00971201 A 20001108; ES 00971201 T 20001108; US 13073002 A 20020520