Annular laser beam cladding process feasibility study

Alexander Kuznetsov (Author), Andrej Jeromen (Author), Gideon Levy (Author), Makoto Fujishima (Author), Edvard Govekar (Author)

Abstract

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

kolobarjasti laserski žarki;navarjanje prahu;procesni parametri;izkoristek prahu;annular laser beams;powder cladding;process parameters;powder catchment efficiency;

Data

Language:	English
Year of publishing:	2016
Typology:	1.08 - Published Scientific Conference Contribution
Organization:	UL FS - Faculty of Mechanical Engineering
UDC:	535(045)
COBISS:	14887195
ISSN:	1875-3892
Views:	1584
Downloads:	677
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	Slovenian
Secondary keywords:	kolobarjasti laserski žarki;navarjanje prahu;procesni parametri;izkoristek prahu;
Type (COBISS):	Article
Pages:	F. 647-656
DOI:	10.1016/j.phpro.2016.08.067
ID:	10993248