Global Patent Index - EP 2943310 A1

EP 2943310 A1 20151118 - LASER METHOD WITH DIFFERENT LASER BEAM AREAS WITHIN A BEAM AND DEVICES

Title (en)

LASER METHOD WITH DIFFERENT LASER BEAM AREAS WITHIN A BEAM AND DEVICES

Title (de)

LASERVERFAHREN MIT UNTERSCHIEDLICHEN LASERSTRAHLBEREICHEN INNERHALB EINES STRAHLS UND VORRICHTUNGEN

Title (fr)

PROCÉDÉ LASER PRÉSENTANT DIVERSES ZONES DE FAISCEAU LASER AU SEIN D'UN FAISCEAU ET DISPOSITIFS

Publication

EP 2943310 A1 20151118 (DE)

Application

EP 14705323 A 20140214

Priority

  • EP 13158185 A 20130307
  • EP 2014052939 W 20140214
  • EP 14705323 A 20140214

Abstract (en)

[origin: EP2774713A1] The method comprises applying a material to a crack in metallic substrates (20) and melting the material in the substrate using a laser beam (1). The laser-beam has inner (7) and outer (4) beam portions that have different power and wavelengths. The inner portion is surrounded by the outer portion. The method further comprises treating the substrate and performing a deposition welding process. The inner portion of the laser beam is concentrically arranged within the outer portion of the laser beam. The inner laser beam portion has a diameter of 3 mm. The method comprises applying a material to a crack in metallic substrates (20) and melting the material in the substrate using a laser beam (1). The laser-beam has inner (7) and outer (4) beam portions that have different power and wavelengths. The inner portion is surrounded by the outer portion. The method further comprises treating the substrate and performing a deposition welding process. The inner portion of the laser beam is concentrically arranged within the outer portion of the laser beam. A power or intensity of the inner laser beam portion is 50% greater than a power or intensity of the outer laser beam portion, or is 200-300 W. The inner laser beam portion has a diameter of 3 mm. The outer laser beam portion has diameter of 4 mm. An independent claim is included for a device for or generating a laser beam.

IPC 8 full level

B23K 26/06 (2014.01); B23K 26/00 (2014.01); B23K 26/067 (2006.01); B23K 26/34 (2014.01)

CPC (source: EP US)

B23K 26/064 (2015.10 - EP US); B23K 26/0648 (2013.01 - EP US); B23K 26/067 (2013.01 - US); B23K 26/0676 (2013.01 - EP US); B23K 26/34 (2013.01 - EP US); B23K 26/354 (2015.10 - EP US); C22B 9/221 (2013.01 - US)

Citation (search report)

See references of WO 2014135358A1

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)

EP 2774713 A1 20140910; EP 2943310 A1 20151118; US 2016008919 A1 20160114; US 9884391 B2 20180206; WO 2014135358 A1 20140912

DOCDB simple family (application)

EP 13158185 A 20130307; EP 14705323 A 20140214; EP 2014052939 W 20140214; US 201414770902 A 20140214