Statement of Purpose"Arcs and Sparks!" it was my understanding of welding in the beginning. Surprisingly, I am now applying graduate studies for welding engineering, which is the most fascinating area of ​​engineering in my heart. What happened in the last three years? Since childhood I have explored the world of materials science and engineering in my own way. I grew up next door to SJ Petroleum Machinery Co., influenced by many engineers, I had a natural interest in activities such as hands-on practice, problem solving, and gradually making small objects. With satisfaction, I always manage to find my way. After going to Huazhong University of Science and Technology to study material processing and control engineering, I became interested in various advanced manufacturing and processing techniques, especially selective laser sintering (SLS), which could easily render complex geometries directly from digital CAD data. Due to my excellent performance and great enthusiasm, Prof. Yusheng Shi, a leading expert in addictive manufacturing, accepted my application to join his laboratory when I was a second year. I collaborated with four senior students, with the aim of improving the selective laser sintering system. We designed CAD models and carried out theoretical analyses. Working with senior and graduate students has improved both my practical and theoretical skills, such as the use of tools and equipment, and the fundamental theory of laser processing. Meanwhile I noticed that in many cases the macroscopic properties were linked to the microstructure. Therefore, it was important to understand the effect of microstructure on the temporal evolution, response and reliability of material properties. The lack of relevant knowledge intrigued me to consider learning more… middle of paper… elf, and consistent effort was the key to making the change and improving things. In fact, the deeper- I go into the materials process, the more I feel like I need more training to become a successful researcher. This is why I choose to continue my studies in materials engineering, in particular laser process technology. Your exceptional program, ranked among the best in the United States, plays a pioneering role in materials engineering and provides a challenging and inspiring environment. From Dr. Liu I have heard a lot about life in Columbus, which is very attractive to me and I believe that the courses and research opportunities available in your program can best train me to realize my goals, challenge my personal beliefs and my educational background, let me contribute to the academic atmosphere in my own way and create the project "Arcs and Sparks!" in my mind.