EP 0921878 B1 20010228 - PRODUCTION OF LID BORDERING RINGS WITHOUT ROUND CUTTINGS
Title (en)
PRODUCTION OF LID BORDERING RINGS WITHOUT ROUND CUTTINGS
Title (de)
DECKELRINGFERTIGUNG OHNE RONDENVERSCHNITT
Title (fr)
REALISATION DE BORDS ANNULAIRES DE COUVERCLES SANS PRODUCTION DE DECHETS RONDS
Publication
Application
Priority
- DE 9701284 W 19970620
- DE 19625174 A 19960624
Abstract (en)
[origin: DE19625174A1] A process is disclosed for forming metallic lid bordering rings (20; 20a, 20b, 20c, 20d, 20e) with an inside opening (21) and a ring-shaped profiled border (20a, 20b, 20c, 20e). A cylindrical blank (10, VR) placed in the centre of several ring-shaped, concentrically joined tool segments (1 to 7) is pushed axially downwards (v0) by a outer tool segment (1) and deformed in a radial direction (v0') over a ring-shaped deflecting lip (5a) of a segment tool (5) located further inward in the radial direction among the concentrically joined tool segments (1 to 7). An upper segment tool (2) is held above the deflecting lip (5a) to define a gap (S) into which the blank (10; VR; HR) radially deformed (v0') inwards is pressed. This avoids the formation of cuttings inside (21) the thus produced lid bordering ring (20).
IPC 1-7
IPC 8 full level
B21D 51/38 (2006.01); B21D 51/44 (2006.01); B21D 53/18 (2006.01)
CPC (source: EP)
B21D 51/38 (2013.01); B21D 51/44 (2013.01); B21D 53/18 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE
DOCDB simple family (publication)
EP 1029613 A1 20000823; EP 1029613 B1 20090826; AT E199335 T1 20010315; AT E440687 T1 20090915; AU 3335397 A 19980114; CZ 293371 B6 20040414; CZ 426398 A3 19990811; DE 19625174 A1 19980108; DE 19625174 B4 20080515; DE 59703067 D1 20010405; DE 59713015 D1 20091008; DK 0921878 T3 20010611; DK 1029613 T3 20091221; EE 03811 B1 20020815; EE 9800440 A 19990615; EP 0921878 A1 19990616; EP 0921878 B1 20010228; ES 2157076 T3 20010801; ES 2332700 T3 20100211; HU 223260 B1 20040428; HU P9903163 A2 20000228; HU P9903163 A3 20000628; NO 311412 B1 20011126; NO 986029 D0 19981221; NO 986029 L 19990224; PL 186886 B1 20040331; PL 330919 A1 19990607; PT 1029613 E 20091123; PT 921878 E 20010830; WO 9749510 A1 19971231
DOCDB simple family (application)
EP 00107477 A 19970620; AT 00107477 T 19970620; AT 97929130 T 19970620; AU 3335397 A 19970620; CZ 426398 A 19970620; DE 19625174 A 19960624; DE 59703067 T 19970620; DE 59713015 T 19970620; DE 9701284 W 19970620; DK 00107477 T 19970620; DK 97929130 T 19970620; EE 9800440 A 19970620; EP 97929130 A 19970620; ES 00107477 T 19970620; ES 97929130 T 19970620; HU P9903163 A 19970620; NO 986029 A 19981221; PL 33091997 A 19970620; PT 00107477 T 19970620; PT 97929130 T 19970620