[PDF]    http://dx.doi.org/10.3952/lithjphys.45108

Open access article / Atviros prieigos straipsnis

Lith. J. Phys. 45, 59–64 (2005)


PECULIARITIES OF LASER WELDING OF METALS
Br. Petrėtisa,b and M. Balčiūnienėa
aInstitute of Physics, Savanorių 231, LT-02300 Vilnius, Lithuania
E-mail: brpet@delfi.lt
bVilnius Pedagogical University, Studentų 39, LT-10220 Vilnius, Lithuania

Received 20 October 2004

The work analyses the main thermal and physical parameters of the material that condition the laser welding process. It is shown that the best quality of the laser welding seam in carbon-rich and highly doped steels is obtained when the seam is formed from the covering layer of the powder mixture deposited on the surface of the welded parts. It should be noted that, when the laser technology is used to weld the parts from copper or aluminium, the welding process can be carried out in the atmosphere of CO2 gas.
Keywords: laser welding, metal science, steel, laser technology
PACS: 68.55.–a


LAZERINIO METALŲ SUVIRINIMO YPATUMAI
Br. Petrėtisa,b, M. Balčiūnienėa
aFizikos institutas, Vilnius, Lietuva
bVilniaus pedagoginis universitetas, Vilnius, Lietuva

Analizuojami pagrindiniai šiluminiai ir fizikiniai medžiagos parametrai, kurie sąlygoja lazerinio suvirinimo procesą. Parodyta, kad didelio anglingumo ir daug legiruotuose plienuose geresnė lazerinio suvirinimo siūlės kokybė yra gaunama, kai siūlė sudaroma iš padengimo miltelių mišinių sluoksnio. Reikia pažymėti, kad naudojant lazerinę technologiją vario ir aliuminio elementams suvirinti, tai galima sėkmingai atlikti CO2 dujų atmosferoje.


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