Global Patent Index - EP 3166743 A1

EP 3166743 A1 20170517 - MULTI-STAGE RESISTANCE WELDING OF SANDWICH PANELS

Title (en)

MULTI-STAGE RESISTANCE WELDING OF SANDWICH PANELS

Title (de)

MEHRSTUFIGES WIDERSTANDSSCHWEIßEN VON SANDWICHBLECHEN

Title (fr)

SOUDAGE PAR RÉSISTANCE DE TÔLES EN SANDWICH EN PLUSIEURS ÉTAPES

Publication

EP 3166743 A1 20170517 (DE)

Application

EP 15734151 A 20150703

Priority

  • DE 102014109505 A 20140708
  • EP 2015065205 W 20150703

Abstract (en)

[origin: WO2016005283A1] The invention relates to a method for resistance welding of a sandwich panel to at least one further metal component, wherein the sandwich panel has two metal cover layers and a thermoplastic plastic layer arranged between the metal cover layers, wherein at least one first region of the sandwich panel to be welded is heated in such a way that the thermoplastic plastic layer softens and is displaced from the welding region by the pressing together of the cover layers, the cover layers and the further component are welded to each other by a flow of electric current in a first circuit via a first and a second welding electrode, wherein the first welding electrode is arranged on the side of the sandwich panel and the second welding electrode is in electrical contact with the metal component. The problem addressed by the invention is that of providing a method and a device, by means of which further improvement with regard to economical provision, i.e., also a reduction in the cycle times in the production of joints between sandwich panels and metal components, can be achieved with low equipment expense. This problem is solved by means of a method according to claim 1.

IPC 8 full level

B23K 11/11 (2006.01); B23K 11/16 (2006.01); B23K 11/34 (2006.01)

CPC (source: EP)

B23K 11/115 (2013.01); B23K 11/16 (2013.01); B23K 11/34 (2013.01); B23K 2103/172 (2018.07); B23K 2103/18 (2018.07); B23K 2103/42 (2018.07)

Citation (search report)

See references of WO 2016005283A1

Citation (examination)

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 2016005283 A1 20160114; DE 102014109505 A1 20160114; EP 3166743 A1 20170517

DOCDB simple family (application)

EP 2015065205 W 20150703; DE 102014109505 A 20140708; EP 15734151 A 20150703