EP 1554077 A1 20050720 - DEVICE FOR WELDING BY MEANS OF LASER RADIATION
Title (en)
DEVICE FOR WELDING BY MEANS OF LASER RADIATION
Title (de)
VORRICHTUNG ZUM SCHWEISSEN MITTELS LASERSTRAHLUNG
Title (fr)
DISPOSITIF DE SOUDURE PAR RAYONNEMENT LASER
Publication
Application
Priority
- DE 0303026 W 20030910
- DE 10246198 A 20021001
Abstract (en)
[origin: WO2004030857A1] The invention relates to a device which enables the adjacent joining surfaces of two plastic parts (workpiece) to be welded together quasi-simultaneously by means of laser radiation, at a joining contour thereof. The bundle of rays emitted by a laser diode (1) is injected, by means of an optical fibre (2), into a first gradient index lens (4.1) which concentrates the bundle of rays onto the workpiece surface (5), the first gradient index lens (4.1) being deviated in relation to the output surface (3) of the optical fibre (2). In this way, the bundle of rays scans a joining contour on the workpiece surface (5) in order to quasi-simultaneously heat, plastify and weld the workpiece along said joining contour. A plurality of such devices can be assembled to form a more complex device, in order to simultaneously and quasi-simultaneously subject larger joining contours to radiation.
IPC 1-7
IPC 8 full level
B23K 26/06 (2006.01); B23K 26/08 (2006.01); B29C 65/16 (2006.01)
CPC (source: EP US)
B23K 26/064 (2015.10 - EP US); B23K 26/0648 (2013.01 - EP US); B23K 26/08 (2013.01 - EP US); B23K 26/082 (2015.10 - EP US); B29C 65/1654 (2013.01 - EP US); B29C 65/1674 (2013.01 - EP US); B29C 66/80 (2013.01 - EP US); B29C 66/836 (2013.01 - EP US); B29C 65/1667 (2013.01 - EP US); B29C 65/1687 (2013.01 - EP US); B29C 66/73921 (2013.01 - EP US)
Citation (search report)
See references of WO 2004030857A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2004030857 A1 20040415; AU 2003269704 A1 20040423; DE 10246198 A1 20040422; DE 10393890 D2 20050825; EP 1554077 A1 20050720; US 2006032839 A1 20060216
DOCDB simple family (application)
DE 0303026 W 20030910; AU 2003269704 A 20030910; DE 10246198 A 20021001; DE 10393890 T 20030910; EP 03750344 A 20030910; US 52993005 A 20050401