Design flexibility, mass customization, waste reduction and the ability to manufacture near-net complex-shape structures, as well as rapid prototyping, are the main advantages of Metal Injection Molding (MIM). A brief review of the MIM technique, materials and their development to trending applications using iron powders was delineated. The ground-breaking applications of MIM in automotive, medical, and magnetic materials were discussed. The current-status of iron powder product development prepared for MIM was reviewed. In addition, this paper discussed the main processing challenges considering the MIM technology for producing high-end applications. Overall, this paper gives a summary of MIM, including a study on its benefits and opportunities and as a roadmap for future research and development in iron and steel powder manufacturing technique.

设计灵活性、大规模定制、减少浪费和制造近净复杂形状结构的能力以及快速成型是金属注射成型 (MIM) 的主要优势。简要回顾了 MIM 技术、材料及其在使用铁粉的趋势应用方面的发展。讨论了 MIM 在汽车、医疗和磁性材料中的突破性应用。综述了为MIM制备的铁粉产品开发的现状。此外，本文还讨论了将 MIM 技术用于生产高端应用的主要加工挑战。总体而言，本文对 MIM 进行了总结，包括对其优势和机会的研究，并作为未来钢铁粉末制造技术研究和开发的路线图。