EP 1776203 A1 20070425 - METHOD FOR MONITORING A RESISTANCE WELDING PROCESS AND DEVICE THEREFOR
Title (en)
METHOD FOR MONITORING A RESISTANCE WELDING PROCESS AND DEVICE THEREFOR
Title (de)
VERFAHREN ZUR ÜBERWACHUNG EINES WIDERSTANDSSCHWEISSVERFAHRENS UND VORRICHTUNG DAFÜR
Title (fr)
PROCEDE DE SUPERVISION D'UN PROCEDE DE SOUDAGE PAR RESISTANCE ET DISPOSITIF POUR LA MISE EN OEUVRE DE CE PROCEDE
Publication
Application
Priority
- FR 2005050504 W 20050627
- FR 0407056 A 20040628
Abstract (en)
[origin: WO2006003347A1] A method for monitoring a resistance welding process carried out on a stack of metal workpieces (1) clamped between two electrodes (2a, 2b) of a clamp (3), and a device therefor. According to the method, the electrodes (2a, 2b) are subjected to a clamping force (F) and a voltage (V(t)) enabling a current (I(t)) to flow through the stack of metal workpieces (1). The monitoring method further includes at least one step of analysing the clamping force (F) by comparison with a model from a prior learning process. The result of the analysis of each step is taken into account by a decision-making matrix to generate a correction and/or control signal intended for the welding process.
IPC 8 full level
B23K 11/25 (2006.01)
CPC (source: EP US)
B23K 11/255 (2013.01 - EP US)
Citation (search report)
See references of WO 2006003347A1
Citation (examination)
- US 5434382 A 19950718 - SCHLATTL WERNER [DE], et al
- US 5471028 A 19951128 - KAWAI SHINGO [JP]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
FR 2872074 A1 20051230; FR 2872074 B1 20060929; BR PI0512447 A 20080304; CN 100503127 C 20090624; CN 1997479 A 20070711; EP 1776203 A1 20070425; JP 2008504134 A 20080214; JP 5196642 B2 20130515; US 2007175869 A1 20070802; US 7655880 B2 20100202; WO 2006003347 A1 20060112
DOCDB simple family (application)
FR 0407056 A 20040628; BR PI0512447 A 20050627; CN 200580021567 A 20050627; EP 05781893 A 20050627; FR 2005050504 W 20050627; JP 2007518663 A 20050627; US 57126405 A 20050627