CO2 laser welding of titanium aluminide intermetallic compound

Gaku Kuwahara; Shigeru Yamaguchi; Kenzo Nanri; Masanori Ootani; Sachio Seto; Mikiya Arai; Tomoo Fujioka

doi:10.1117/12.377047

7 February 2000 CO₂ laser welding of titanium aluminide intermetallic compound

Gaku Kuwahara, Shigeru Yamaguchi, Kenzo Nanri, Masanori Ootani, Sachio Seto, Mikiya Arai, Tomoo Fujioka

Proceedings Volume 3888, High-Power Lasers in Manufacturing; (2000) https://doi.org/10.1117/12.377047
Event: Advanced High-Power Lasers and Applications, 1999, Osaka, Japan

Abstract

Titanium aluminide intermetallic compound is studied to find out good welding conditions using CO₂ laser irradiation. In the experiment, we used the casting titanium aluminide containing iron, vanadium and boron with a thickness of 2 mm. We carried out bead-on-plate laser welding at various initial temperatures of specimens varied from room temperature to 873 [K] in inert gas environment filled with argon. We measured fused depth, bead width and Vickers hardness. As a result of experiments, welding speeds that allow full bead-on- plate welding to be possible were strongly by dependent on the initial temperature, 3000 [mm/min], initial temperature 873 [K], 2600 [mm/mm], initial temperature 673 [K], and 2000 [mm/min] with 300 [K]. Transverse crack-free welding was achieved, when initial temperature was at 873 [K].

Citation Download Citation

Gaku Kuwahara, Shigeru Yamaguchi, Kenzo Nanri, Masanori Ootani, Sachio Seto, Mikiya Arai, and Tomoo Fujioka "CO₂ laser welding of titanium aluminide intermetallic compound", Proc. SPIE 3888, High-Power Lasers in Manufacturing, (7 February 2000); https://doi.org/10.1117/12.377047

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