In recent years, 3D printing technology has been rapidly developing and application in fabricating metal components. This technology has become increasingly prevalent. The research introduces a 3D printing device (AM) with an integrated material rolling mechanism, specifically designed for producing thinmetal parts, and developed a manufacturing process of thin parts. The aim of this study is to enhance the quality of thin parts produced by using 3D printing technology. The authors primarily employed two research methods: theoretical analysis (covering 3D printing technology, material rolling, quality control measures, and production optimization) and experimental investigation (printing process of thin parts to evaluate and compare the quality). The research results have identified the most suitable 3D printing parameters for the best altitude. Furthermore, it has demonstrated a significant improvement in the quality of thin parts to conventional 3D printing methods.