Welding of titanium alloy by different types of lasers

• Autorzy: Lisiecki A.
• Języki publikacji: EN

Abstrakty

EN

Purpose: of this paper was focused on comparing the welding modes during laser welding of butt joints of titanium alloy Ti6Al4V sheets 1.5 and 2.0 mm thick with direct diode laser and Disk solid state laser. Design/methodology/approach: Bead-on-plate welds were produced at different parameters of laser welding, different welding speed, different output laser power resulted in different heat input of laser welding process. The test welds were investigated by visual test, metallographic observations including macro and microstructure analysis. Additionally mechanical test were carried out such as tensile tests and technological bending test of the joints. The influence of basic laser welding parameters on the penetration depth, shape of fusion zone, width of welds and width of heat affected zones were studied. Additionally the phenomena of laser heating and melting of the welded sheets were analyzed. Findings: It was found that the mechanism of HPDL laser welding of titanium alloy differs distinctly from the mechanism of Disk laser welding. The test welds produced by HPDL laser were high quality. Welds produced by the Disk laser are characterized by a columnar shape of fusion zones, very narrow with narrow and fine structure heat affected zone. Research limitations/implications: In further investigations of laser welding of titanium alloys applying the key-hole welding mode a special care must be taken to the shielding of the weld zone and protection the weld pool and weld metal against the harmful gases from air atmosphere. Practical implications: Results of investigations presented in this paper may be applied directly for welding high quality butt joints of titanium alloy with the HPDL laser. In a case of laser welding with the Disk laser practical application requires further study, especially concentrated on the effectiveness of gas protection of the welding area including the key-hole, weld pool and surrounding regions of metal. Originality/value: This paper describes results of investigation concerning laser welding of the most common used titanium alloy Ti6Al4V by two unique and modern lasers. The investigations were carried out using the high power diode laser with a rectangular laser beam spot and also using a new generation of Disk laser characterised very high power density of the laser beam spot.

Słowa kluczowe

EN

laser welding; diode laser; HPDL laser; titanium alloy; Ti6Al4V

PL

spawanie laserowe; laser diodowy; laser HPDL; stop tytanu; Ti6Al4V

• Wydawca: International OCSCO World Press
• Czasopismo: Archives of Materials Science and Engineering
• Rocznik: 2012
• Tom: Vol. 58, nr 2
• Strony: 209--218
• Opis fizyczny: Bibliogr. 25 poz.

Twórcy

autor

Lisiecki A.

• Welding Department, Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland

Bibliografia

• [1]A. Lisiecki, Laser welding of titanium alloy Ti6Al4V using a disk laser, International Virtual Journal Machines, Technologies, Materials 7 (2012) 53-56.
• [2]A. Klimpel, D. Janicki, A. Lisiecki, Z. Wilk, Laser welding technologies: High power diode laser application examples, Welding International, Volume 24, Issue 9, September (2010) 689-698.
• [3]A. Lisiecki, A. Klimpel, Diode laser surface modification of Ti6Al4V alloy to improve erosion wear resistance. Archives of Materials Science and Engineering, Vol. 32, (2008) 5-12.
• [4]A Klimpel, LA Dobrzański, D Janicki, A Lisiecki, Abrasion resistance of GMA metal cored wires surfaced deposits, Journal of materials processing technology, 164 (2005) 1056 1061.
• [5]LA Dobrzański, K Labisz, M Piec, A Klimpel, A Lisiecki, Influence of vanadium carbide ceramic powder on structure and properties of hot work tool steel alloyed with HPDL laser, Proceedings of the 2nd International Conference “Manufacturing Engineering” ICMEN, (2005) 185-191.
• [6]A Klimpel, A Lisiecki, et al., Robotized GMA surfacing of cermetal deposits, Journal of Achievements in Materials and Manufacturing Engineering, 18 (1-2) (2006) 395-398.
• [7]A. Grabowski, et al., Optical and conductive properties of AlSi-alloy/SiCp composites, application in modeling CO2 laser processing of composites, Optics and Lasers in Engineering 43 (2005) 233-246.
• [8]M. Adamiak, J. Górka, T. Kik, Comparison of abrasion resistance of selected constructional materials, Journal of Achievements in Materials and Manufacturing Engineering, 37/2 (2009) 375-380.
• [9]M. Adamiak, J. Górka, T. Kik, Structure analysis of welded joints of wear resistant plate and constructional steel, Archives of Materials Science and Engineering 56/2 (2010) 108-114.
• [10]A. Kurc, E. Kalinowska-Ozgowicz, The influence of the martensite phase occurring in the structure of cold rolled austenitic Cr-Ni steel on its mechanical properties, Archives of Materials Science and Engineering 37/1 (2009) 21-28.
• [11]M. Kciuk, A. Kurc, J. Szewczenko, Structure and corrosion resistance of aluminium AlMg2.5, AlMg5Mn and AlZn5Mg1 alloys, Journal of Achievements in Materials and Manufacturing Engineering 41/1-2 (2010) 74-81.
• [12]W. Kwaśny, Predicting properties of PVD and CVD coatings based on fractal quantities describing their surface, Journal of Achievements in Materials and Manufacturing Engineering 37/2 (2009) 125-192.
• [13]K. Labisz, T. Tański, L.A. Dobrzański, HPDL laser alloying of heat treated Al-Si-Cu alloy, Archives of Materials Science and Engineering 54/1 (2012) 13-21.
• [14]K. Janerka, J. Jezierski, J. Szajnar, Quality and properties of the cast iron produced on the steel scrap base, Archives of Materials Science and Engineering 53/2 (2012) 92-101.
• [15]L.A. Dobrzański, E. Jonda, K. Labisz, M. Bonek, et al., The comparision of tribological properties of the surface layer of the surface layer of the hot work tool steels obtained by laser alloying, Journal of Achievements in Materials and Manufacturing Engineering 42 (2010) 142-147.
• [16]D. Pakuła, L.A. Dobrzański, A. Križ, M. Staszuk, Investigation of PVD coatings deposited on the Si3N4 and sialon tool ceramics, Archives of Materials Science and Engineering 46/1 (2010) 53-60.
• [17]G. Matula, Carbon effect in the sintered high-speed steels matrix composites - HSSMC, Journal of Achievements in Materials and Manufacturing Engineering 55/1 (2012) 90-107.
• [18]E. Akman, A. Demir, et al., Laser welding of Ti6Al4V titanium alloys, Journal of Materials Processing Technology 209 (2009) 3705-3713.
• [19]X. Cao, M.Jahazi, Effect of welding speed on butt joint quality of Ti–6Al–4V alloy welded using a high-power Nd:YAG laser, Optics and Lasers in Engineering 47 (2009) 1231 124.
• [20]Cui Li, Kutusna Muneharua, et al., Fiber laser-GMA hybrid welding of commercially pure titanium, Materials and Design 30 (2009) 109–114.
• [21]I. Szczygieł, A. Fic, T. Kruczek, A. Sachajdak, Verification of temperature distribution in the system for pad welding by means of infrared thermography, Proceeding of the 9th International Conference “Quantitative InfraRed Thermography”, Cracow, 2008.
• [22]A. Klimpel, A. Lisiecki, Laser welding of butt joints of austenitic stainless steel AISI 321, Journal of Achievements in Materials and Manufacturing Engineering 25 (2007) 63.
• [23]J. Bodzenta, A. Kazmierczak-Balata, et al., Analysis of influence of Yb concentration on thermal, elastic, optical and lattice parameters in YAG single crystal, Journal of Alloys and Compounds 473/1-2 (2009) 245-249.
• [24]Cheolhee Kim, Junghak Kim, et al., Investigation of laser remote welding using disc laser, Journal of materials processing technology, 201 (2008) 521–525.
• [25]L. Quintino, A. Costa, et al., Welding with high power fiber lasers - A preliminary study, Materials and Design 28 (2007) 1231–1237.