A first assessment of product durability of an SLM Ti6Al4V conrod with a lightweighted structure was developed. Full-scale fatigue testing and finite element analyses of testing conditions were performed to determine stress cycles in critical regions. End of life (EOL) and metallurgical analysis completed the study. A fatigue diagram covering the finite life and estimating the infinite life load levels, difficult to estimate a priori, was obtained; this is the first relevant result toward fatigue assessment of AM components. Fatigue life for the SLM conrod was lower than the conventional one, however, EOL analysis pointed out potential future improvements.

对轻量化结构的 SLM Ti6Al4V 连杆的产品耐久性进行了首次评估。对测试条件进行了全面的疲劳测试和有限元分析，以确定关键区域的应力循环。寿命终止 (EOL) 和冶金分析完成了这项研究。获得了一个涵盖有限寿命和估计无限寿命载荷水平的疲劳图，很难先验地估计；这是关于增材制造组件疲劳评估的第一个相关结果。SLM 连杆的疲劳寿命低于传统连杆，但是，EOL 分析指出了未来的潜在改进。