Core Insights - A new type of 3D printing technology has been developed by the research team at the Chinese Academy of Sciences, which produces a titanium alloy material known for its "universal" fatigue resistance, setting a new world record for metal materials' fatigue resistance [1][3]. Group 1: Research and Development - The research team, led by Zhang Zhefeng and Zhang Zhenjun, has successfully created a post-processing technique for 3D printing that addresses significant obstacles in high-end applications [1][3]. - The new process, named Net-AM preparation (NAMP), allows for precise control over the internal structure and defects of the material, resulting in a titanium alloy (Ti-6Al-4V) that eliminates micro-voids and coarse structures, both of which contribute to fatigue [3][5]. Group 2: Material Properties - The "universal" fatigue resistance refers to the material's unprecedented ability to withstand repeated stress without damage under various stress ratio conditions [3][5]. - Experimental data indicates that the new titanium alloy exhibits superior fatigue strength compared to all other metal materials across different stress ratios [5]. Group 3: Application Potential - The ability to manufacture complex, lightweight metal parts through 3D printing is particularly attractive for next-generation aircraft and spacecraft, which require weight reduction and integration [3][4]. - Traditional titanium alloys often perform well only under specific stress ratios, making it challenging to create a material that can perform optimally across all conditions [4].