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Direction dependency in coaxial laser double wire Direct Energy Deposition

  • Coaxial Laser wire Direct Energy Deposition (L-DED) promises a direction-independent buildup due to a centric supply of the welding material. To fabricate Functionally Graded Materials (FGMs), a processing head was designed that is capable of supplying two wire materials into the processing zone. This study investigates the direction dependency of welding seams produced by two 1.4718 metal wires with a diameter of 0.8 mm in a coaxial laser setup using three separately controllable single laser beams with a maximum combined laser power of 660 W. The welding wires are supplied simultaneously to the laser spot under an incidence angle of 3.5° to the middle axis of the processing head. The seam geometry is investigated using a confocal laserscanning-microscope. A comparison of the height, width and macroscopic seam geometry reveals the influence of the welding direction on the seam geometry and quality in Laser Double wire Direct Energy Deposition (LD-DED).

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Author:Nick SchwarzORCiD, Marius LammersORCiD, Jörg HermsdorfORCiDGND, Stefan KaierleORCiD, Henning AhlersORCiDGND, Roland LachmayerGND
DOI original:https://doi.org/10.1016/j.procir.2022.08.045
Parent Title (English):Procedia CIRP - 12th CIRP Conference on Photonic Technologies [LANE 2022]
Document Type:Article
Year of Completion:2022
Publishing Institution:Hochschule Hannover
Release Date:2022/12/16
Tag:Additive Manufacturing; DED; DiCoLas; Functionally Graded Materials; Laser Double Wire
GND Keyword:Funktioneller Gradientenwerkstoff; Direct Energy Deposition; Schweißdraht; Laser
First Page:196
Last Page:200
Link to catalogue:183795514X
Institutes:Fakultät II - Maschinenbau und Bioverfahrenstechnik
DDC classes:670 Industrielle und handwerkliche Fertigung
Licence (German):License LogoCreative Commons - CC BY-NC-ND - Namensnennung - Nicht kommerziell - Keine Bearbeitungen 4.0 International