EP 3615257 A1 20200304 - METHOD FOR WELDING SHEET METAL BODIES, AND A RESISTANCE ROLLER SEAM WELDING MACHINE
Title (en)
METHOD FOR WELDING SHEET METAL BODIES, AND A RESISTANCE ROLLER SEAM WELDING MACHINE
Title (de)
VERFAHREN ZUM SCHWEISSEN VON BLECHZARGEN UND EINE WIDERSTANDS-ROLLENNAHTSCHWEISSMASCHINE
Title (fr)
PROCÉDÉ DE SOUDAGE DE CADRES EN TÔLE ET MACHINE À SOUDER À LA MOLETTE EN LIGNE CONTINUE
Publication
Application
Priority
- CH 5742017 A 20170428
- EP 2018060783 W 20180426
Abstract (en)
[origin: WO2018197634A1] The invention relates to a method for welding overlapping edge regions (7',7") of sheet metal bodies (7). Said method being characterized in that prior to welding the edge regions (7',7"), the edge regions are heated to a temperature T1 below the welding temperature by 200 °C for example in order to then be brought together and welded. Thus, an annealing of the microstructure of the sheet is achieved, and as a result, an excessive hardening of the welding seam, and the subsequent problems upon further processing, can be prevented. The device for carrying out the method comprises a heating zone which is arranged between the bending station and the welding station in order to heat the edge regions (7',7").
IPC 8 full level
B23K 11/06 (2006.01); B21C 37/08 (2006.01); B21D 51/26 (2006.01); B23K 11/34 (2006.01); B23K 31/02 (2006.01); B23K 37/053 (2006.01); B23K 101/18 (2006.01)
CPC (source: CH EP)
B23K 11/06 (2013.01 - CH EP); B23K 11/063 (2013.01 - EP); B23K 11/34 (2013.01 - CH EP); B23K 31/022 (2013.01 - EP); B23K 37/0535 (2013.01 - EP); B21C 37/08 (2013.01 - EP); B23K 2101/18 (2018.07 - EP)
Citation (search report)
See references of WO 2018197634A1
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 2018197634 A1 20181101; CH 713728 A1 20181031; EP 3615257 A1 20200304
DOCDB simple family (application)
EP 2018060783 W 20180426; CH 5742017 A 20170428; EP 18720598 A 20180426