Design and fabrication of special fixture for different weld configurations of commercial pure Titanium sheet in laser beam welding process

2nd International Conference on Advancements in Aeromechanical Materials for Manufacturing

航空航天工程;材料科学;机械制造

Anthuvan Stephen Edberk, J.^1 ; Siva Shanmugam, N.^1 ; Sankaranarayanasamy, K.^1

Department of Mechanical Engineering, National Institute of Technology, Tiruchirappalli

Tamil Nadu

620 015, India^1

关键词: Commercial pure titanium;    High productivity;    Laser beam welding (LBW);    Macrostructures;    Medical industries;    Shielding gas;    Special fixtures;    Weld morphology;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/455/1/012075/pdf
DOI  :  10.1088/1757-899X/455/1/012075

来源: IOP

【 摘 要 】

Titanium and its alloys have been used in several areas such as aerospace, automobile, marine and medical industries due to its several superior properties from other materials. In Laser Beam Welding (LBW) process, a variety of advantages such as very narrow heat affected zone, high depth to width ratio, high productivity and low residual stress are obtained. In the present study, trials were conducted in commercial pure titanium (Grade 2) material to ensure feasibility and to make different weld configuration such as lap joint and T joint in Nd: YA G single-sided during the laser beam welding process. Distortion and colorization of the welded joints were avoided by providing firm clamping and uniform shielding gas (99% pure industrial argon) using a custom-made fixtures arrangement. Hence, the quality of weld configurations of the lap joint and T joint are investigated in regard to weld morphology.