Annular laser beam cladding process feasibility study
Kuznetsov, Alexander (Author), Jeromen, Andrej (Author), Levy, Gideon (Author), Fujishima, Makoto (Author), Govekar, Edvard (Author)

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In the paper a novel annular "ring shaped" laser beam cladding head and related cladding process are presented. In the cladding head a laser beam is shaped into an annular ring and guided coaxially with the powder tube disposing the powder jet in the centre of the focused annular laser beam ring. An experimental process feasibility analysis was performed using a Nd:YAG pulsed laser system with a maximal average power 250 W. Beside the known influencing parameters of laser cladding process including the powder mass flow, workpiece feeding velocity, and laser beam intensity, the important parameters related to the annular laser beam caustics were defined. The process feasibility and influence of the process parameters on powder catchment efficiency was analysed based on the cladding experiments of SS 316L powder on SS 304 workpiece material. The potential benefits related to the annular laser beam melt pool geometry and related powder catchment efficiency are discussed.

Keywords:annular laser beams, powder cladding, process parameters, powder catchment efficiency
Work type:Article (dk_c)
Tipology:1.08 - Published Scientific Conference Contribution
Organization:FS - Faculty of Mechanical Engineering
Number of pages:F. 647-656
ISSN on article:1875-3892
DOI:10.1016/j.phpro.2016.08.067 Link is opened in a new window
COBISS.SI-ID:14887195 Link is opened in a new window
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Record is a part of a proceedings

Title:Laser assisted net shape engineering
COBISS.SI-ID:14886427 This link opens in a new window

Record is a part of a journal

Title:Physics procedia
COBISS.SI-ID:26154791 This link opens in a new window

Document is financed by a project

Funder:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije (ARRS)
Project no.:P2-0241
Name:Sinergetika kompleksnih sistemov in procesov

Secondary language

Keywords:kolobarjasti laserski žarki, navarjanje prahu, procesni parametri, izkoristek prahu

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