EP 1232036 A2 20020821 - METHOD AND DEVICE FOR QUALITY CONTROL OF THE JOINT ON SHEETS OR STRIPS BUTT-WELDED BY MEANS OF A LASER
Title (en)
METHOD AND DEVICE FOR QUALITY CONTROL OF THE JOINT ON SHEETS OR STRIPS BUTT-WELDED BY MEANS OF A LASER
Title (de)
VERFAHREN UND VORRICHTUNG ZUR QUALITÄTSKONTROLLE DER NAHT AN MIT EINEM LASER STUMPF GESCHWEISSTEN BLECHEN ODER BÄNDERN
Title (fr)
PROCEDE ET DISPOSITIF POUR CONTROLER LA QUALITE DU JOINT ENTRE DES TOLES OU FEUILLARDS SOUDES BOUT A BOUT AU MOYEN D'UN LASER
Publication
Application
Priority
- DE 19957163 A 19991127
- EP 0011109 W 20001110
Abstract (en)
[origin: WO0139919A2] The invention relates to a method for the quality control of the joint on sheets or strips butt-welded by laser, on which a number of sensor measurements are taken, by at least two sensors arranged around the welded region. The sensor data is fed as input parameters to a combining and correlating measured-data processor for quality evaluation of the welded joint. In order to achieve a real-time quality control of the welded joint, which permits an analysis of the weld result which is true to the actual result, the stored data is fed as input parameters to at least one trainable, artificial neuronal network with an essentially hierarchical structure, which comprises at least two essentially independent artificial neuronal networks. Furthermore, the first artificial neuronal network comprises at least two artificial neuronal networks. The first artificial neuronal network is fed the results from a data pre-processing, as input parameters and the second artificial neuronal partial network is fed the results from the first artificial neuronal partial network, as input parameters and the results from the at least one artificial neuronal network are used for quality control.
IPC 1-7
IPC 8 full level
B23K 31/00 (2006.01); B23K 26/00 (2006.01); B23K 26/03 (2006.01); B23K 26/20 (2006.01); G05B 19/418 (2006.01); G06N 3/04 (2006.01); G06N 3/08 (2006.01); G06Q 50/00 (2006.01); B23K 101/18 (2006.01); B23K 101/30 (2006.01)
CPC (source: EP)
B23K 26/03 (2013.01); B23K 26/032 (2013.01); B23K 26/034 (2013.01); G05B 19/41875 (2013.01); G05B 2219/33025 (2013.01); G05B 2219/33027 (2013.01); G05B 2219/33038 (2013.01); G05B 2219/34153 (2013.01); G05B 2219/37217 (2013.01); G05B 2219/45138 (2013.01); Y02P 90/02 (2015.11)
Citation (search report)
See references of WO 0139919A2
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0139919 A2 20010607; WO 0139919 A3 20011206; AU 2505501 A 20010612; CA 2390873 A1 20010607; CN 1384772 A 20021211; DE 19957163 C1 20010809; EP 1232036 A2 20020821; JP 2003516860 A 20030520
DOCDB simple family (application)
EP 0011109 W 20001110; AU 2505501 A 20001110; CA 2390873 A 20001110; CN 00814905 A 20001110; DE 19957163 A 19991127; EP 00988702 A 20001110; JP 2001541641 A 20001110