EP 2834025 A1 20150211 - METHOD FOR PRODUCING POT-SHAPED COMPONENTS IN A SHAPING PROCESS
Title (en)
METHOD FOR PRODUCING POT-SHAPED COMPONENTS IN A SHAPING PROCESS
Title (de)
VERFAHREN ZUR HERSTELLUNG VON TOPFFÖRMIGEN BAUTEILEN IN EINEM UMFORMPROZESS
Title (fr)
PROCÉDÉ DE FABRICATION DE PIÈCES EN FORME DE POT DANS UN PROCESSUS DE FORMAGE
Publication
Application
Priority
- CH 4552012 A 20120402
- EP 2013056712 W 20130328
Abstract (en)
[origin: WO2013149938A1] The invention relates to a method for producing a pot-shaped component (80, 100) from a flat blank (1). The pot-shaped component (80, 100) has a substantially flat bottom area (82, 102) and a circumferential frame (81, 101) extending up from the bottom area (82, 102) in the manner of a collar, which frame is connected to the bottom area. The blank (1) has a first material thickness (D) substantially over the entire area of the blank and the bottom area (82, 102) has a second material thickness (D9), which is greater than the first material thickness (D). According to the invention, the method is characterized by at least the following steps: a) shaping the flat blank (1) in at least one deep-drawing step to form a pot-shaped raw component (17, 30, 50) having a substantially flat bottom area (15, 32, 52) and a circumferential frame (16, 31, 51) extending up from the bottom area (15, 32, 52) in the manner of a collar, which frame is connected to the bottom area, b) shaping said pot-shaped raw component (17, 30, 50) in a tool having a conically tapered die (71) and a preferably travel-controlled thrust element (75) that applies thrust to the circumferential surface of the frame (16, 31, 51) of the raw component (17, 30, 50) in the axial direction against the conically tapered die (71). In step b), the bottom area (15, 32, 52) of the raw component (17, 30, 50) is clamped at least in some areas between an ejector (72) and a hold-down means (70) and the conically tapered die (71) surrounds the bottom area (15, 32, 52) of the raw component (17, 30, 50) radially on the outside and extends in a diameter-reducing manner in the tool stroke.
IPC 8 full level
B21D 22/21 (2006.01); B21D 51/22 (2006.01)
CPC (source: CN EP US)
B21D 22/20 (2013.01 - US); B21D 22/21 (2013.01 - CN EP US); B21D 51/22 (2013.01 - CN EP US); B21D 22/28 (2013.01 - US); B21D 22/30 (2013.01 - US); B21D 24/005 (2013.01 - US); B21D 24/02 (2013.01 - US); B21D 24/04 (2013.01 - US); B21D 24/10 (2013.01 - US); Y10T 428/1241 (2015.01 - EP US)
Citation (search report)
See references of WO 2013149938A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2013149938 A1 20131010; CN 104334293 A 20150204; CN 104334293 B 20161123; EP 2834025 A1 20150211; JP 2015516301 A 20150611; JP 6155321 B2 20170628; KR 20140143811 A 20141217; US 2015093591 A1 20150402; US 9919351 B2 20180320
DOCDB simple family (application)
EP 2013056712 W 20130328; CN 201380018692 A 20130328; EP 13713429 A 20130328; JP 2015502355 A 20130328; KR 20147030239 A 20130328; US 201314389967 A 20130328