EP 3840907 A1 20210630 - METHOD FOR WELDING HARD MATERIAL BODIES TO TEETH OF A SAW BLADE
Title (en)
METHOD FOR WELDING HARD MATERIAL BODIES TO TEETH OF A SAW BLADE
Title (de)
VERFAHREN ZUM ANSCHWEIßEN VON HARTSTOFFKÖRPERN AN ZÄHNE EINES SÄGEBLATTS
Title (fr)
PROCÉDÉ DE SOUDAGE D'ÉLÉMENTS EN MATÉRIAU DUR SUR DES DENTS D'UNE LAME DE SCIE
Publication
Application
Priority
- DE 102018120242 A 20180820
- EP 2019071911 W 20190815
Abstract (en)
[origin: WO2020038819A1] The invention relates to a method for welding hard material bodies (4) to teeth (6) of a saw blade (8), in particular of a band saw blade or circular saw blade, wherein each tooth (6) has a joining surface (116), and each hard material body (4) has a joining surface (118). The joining surface (118) of the hard material body (4) can be welded to the joining surface (116) of the tooth (6). The method has the following steps: - bringing each tooth (6) of the saw blade (8) into a working region (10); - guiding each hard material body (4) towards the tooth (6) located in the working region (10); - advancing a welding device (24) into the working region (10); - welding the hard material body (4) to the tooth surface (11) of the tooth (6) located in the working region (10); - and withdrawing the welding device (24) out of the working region (10). According to the invention, at least one welding introduction attachment (120) which protrudes from the joining surface (116) of the tooth (6) is formed on each tooth (6) or at least one welding introduction attachment (122) which protrudes from the joining surface (118) of the hard material body (4) is formed on each hard material body (4). The welding introduction attachment (120; 122) is melted upon introducing a welding pulse.
IPC 8 full level
B23K 11/00 (2006.01); B23D 61/04 (2006.01); B23D 61/14 (2006.01); B23D 65/00 (2006.01); B23K 11/11 (2006.01); B23K 11/14 (2006.01); B23K 31/02 (2006.01)
CPC (source: EP US)
B23D 61/04 (2013.01 - EP US); B23D 65/00 (2013.01 - EP US); B23K 11/002 (2013.01 - EP US); B23K 11/11 (2013.01 - EP); B23K 11/14 (2013.01 - EP US); B23K 31/025 (2013.01 - EP US)
Citation (search report)
See references of WO 2020038819A1
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)
DE 102018120242 A1 20200220; DE 102018120242 B4 20200423; EP 3840907 A1 20210630; US 2021170531 A1 20210610; WO 2020038819 A1 20200227
DOCDB simple family (application)
DE 102018120242 A 20180820; EP 19755885 A 20190815; EP 2019071911 W 20190815; US 201917268816 A 20190815