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Projects / Programmes source: ARIS

Optodynamics of aluminium laser welding with two kinds of Nd.YAGlaser pulses

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Research activity

Code Science Field Subfield
2.10.06  Engineering sciences and technologies  Manufacturing technologies and systems  Welding 

Code Science Field
T165  Technological sciences  Laser technology 
Keywords
laser, optical fibres, optodynamics, welding, aluminium
Evaluation (rules)
source: COBISS
Evaluation of bibliographic research performance indicators according to ARIS methodology
Citations Citations for bibliographic records in COBIB.SI that are linked to records in citation databases
source: WoS source: Scopus source: COBISS
Researchers (11)
no. Code Name and surname Research area Role Period No. of publications
1.  11905  PhD Aleš Babnik  Manufacturing technologies and systems  Researcher  2002 - 2003  103 
2.  18327  PhD Drago Bračun  Manufacturing technologies and systems  Researcher  2002 - 2003  237 
3.  09756  PhD Boris Cencič  Electronic components and technologies  Researcher  2002 - 2003  14 
4.  10157  PhD Ladislav Grad  Manufacturing technologies and systems  Head  2002 - 2003  82 
5.  10926  PhD Darja Horvat  Manufacturing technologies and systems  Researcher  2002 - 2003  64 
6.  11228  PhD Rok Hrovatin  Metrology  Researcher  2002 - 2003  47 
7.  21238  PhD Matija Jezeršek  Manufacturing technologies and systems  Researcher  2002 - 2003  375 
8.  19705  Tomaž Lah  Electronic components and technologies  Researcher  2002 - 2003  11 
9.  11742  PhD Marko Marinček  Physics  Researcher  2002 - 2003  59 
10.  01649  PhD Janez Možina  Manufacturing technologies and systems  Researcher  2002 - 2003  641 
11.  18159  PhD Simon Strgar  Manufacturing technologies and systems  Researcher  2001 - 2002  17 
Organisations (2)
no. Code Research organisation City Registration number No. of publications
1.  0143  Fotona proizvodnja optoelektronskih naprav d.o.o. (Slovene)  Ljubljana  5045223000  895 
2.  0782  University of Ljubljana, Faculty of Mechanical Engineering  Ljubljana  1627031  29,252 
Abstract
Aluminium welding with laser is very difficult due to high optical reflectivity and substantial temperature difference between surface oxide layer and bulk aluminium. Problems are reflected in undisered and uncontrolled process dynamics. The aim of this research is to obtain informations about induced dynamics with developed optodynamic detection techniques. On the base of the results a laser source with two kinds of laser pulses will be developed. We assume that simultaneous use of few ms long laser pulse and few ns long laser pulse will enable stable oxide removal and enlarge stability and repeatability of the welding process. Study of the influence of two kinds of laser pulses on process dynamics will give informations on which optimal laser welding parametrs might be defined. Laser welding technique with simultaneous use of typically 5 ms long laser pulse with another few ns long Nd:YAG laser pulse has not been studied yet and it presents a novelty world wide.
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