The Effects of Welding Speed on Microstructure and Mechanical Properties of Dissimilar Welded Joints by CO2 Laser Welding

M. Taşkin
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引用次数: 4

Abstract

Abstract This study investigated the effects of welding speed on microstructure and mechanical properties of dissimilar welded joints (AISI 430 ferritic stainless steel and AISI 1010 low-carbon steel) by using CO2 laser beam welding. Laser beam welding (LBW) experiments were carried out under argon and helium shielding gas atmosphere at 2500 W constant heat input and 100–200–300 cm/min welding speeds. The microstructures of the welded joints were examined by optical microscopy, SEM, EDS, and X-ray analysis. The tensile strength of the welded joints was measured. The results of this study demonstrated that the best properties were observed at the specimens welded at a welding speed of 100 cm/min.
焊接速度对异种CO2激光焊接接头组织和力学性能的影响
摘要:研究了不同焊接速度对AISI 430铁素体不锈钢和AISI 1010低碳钢异种焊接接头组织和力学性能的影响。在氩气和氦气保护气氛下,在2500 W恒定热输入和100-200-300 cm/min焊接速度下进行了激光焊接实验。采用光学显微镜、扫描电镜、能谱仪和x射线分析对焊接接头进行了显微组织分析。测量了焊接接头的抗拉强度。研究结果表明,当焊接速度为100 cm/min时,试样的焊接性能最佳。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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