Aesthetic Diode Laser Welding of Stainless Steel


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In the present study the use of diode laser for stainless steel aesthetic welding is considered. In fact the surface smoothness of the weld bead, attributed to the mode stability of the laser system, suggests its application for aesthetic weld joint. The aims of this work were to: define a process map, based on an aesthetic criterion; mechanically characterize the weld joints (by Vickers micro-hardness and tensile test); analyse the surface of the specimens in terms of roughness. Moreover, gas tungsten-arc (TIG) weld joints were carried out and analogously tested to make a comparison with the diode laser results. Good aesthetic butt joints were obtained with diode laser welding. The same results were found working with constant power speed ratio (i.e. constant fluence). Comparison between TIG and Laser Beam Welding (LBW), showed no significant difference in roughness, while ultimate tensile load was higher for TIG welding. The differences in joint strength depend on the different cross-sectional area and on the extension and microstructure of the base metal, heat-affected zone and melted zone. However, diode laser technology allows to obtain smaller bead size.



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Edited by:

F. Micari, M. Geiger, J. Duflou, B. Shirvani, R. Clarke, R. Di Lorenzo and L. Fratini




F. Quadrini et al., "Aesthetic Diode Laser Welding of Stainless Steel", Key Engineering Materials, Vol. 344, pp. 707-713, 2007

Online since:

July 2007




[1] Y.S. Yang, S.H. Lee: Journal of Material Processing Technology Vol. 94 (1999), p.151.

[2] A. Ribolla, G.L. Damoulis, G.F. Batalha: Journal of Material Processing Technology Vol. 164165 (2005), p.1120.

[3] Qi Yunlian, Deng Ju, Hong Quan, Zeng Liying: Material Science & Engineering Vol. A280 (2000), p.177.

[4] X. Cao, M. Jahazi, J.P. Immarigeon, W. Wallace: Journal of Material Processing Technology Vol. 171 (2006), p.188.

[5] D. Triantafyllidis, M. J: J: Schmidt, L. Li: Journal of Material Processing Technology Vol. 138 (2003), p.102.

[6] Lin Li: The Optics and Lasers in Engineering Vol. 34 (2000), p.231.

[7] F. Bachmann: Applied Surface Science Vol. 208-209 (2003), p.125 b 150 160 170 180 190 200 210 220 -45 -30 -15 0 15 30 45 Distance from bead [mm] Micro-Hardness(HV) a.

[8] F. Curcio, G. Daurelio, F. Memola Capece Minutolo, F. Caiazzo: Journal of Material Processing Technology Vol. 175 (2006), p.83.

DOI: 10.1016/j.jmatprotec.2005.04.026

[9] S. Guarino, L. Santo, L. Slatineanu, V. Tagliaferri: Buletinul Institutului Politehnic Din Iasi Publicat de Universitatea Tehnică Gh. Asachi, Iaşi, Tomul XLVIII (LII), Supliment I, (2004).

[10] Serope Kapakjan, Steven R. Schmid: Manufacturing Engineering and Technology Fourth Edition (2001).

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