Additive manufacturing (AM) is a novel manufacturing technology that can create highly customized products with more complex geometries than traditional techniques. Despite its significant advantages, including the freedom of design, mass customization, and ability to produce complex structures, AM consumes a large amount of energy and incurs high costs. In addition, AM suffers from long production cycles and low production efficiency in the large-scale manufacturing of metal structures. This study offers a review of the existing literature focused on metal AM technology. To avoid the shortcomings of AM and highlight its benefits, which are widely used for manufacturing in combination with casting. The current combination application of AM and casting is reviewed to provide solutions to the problem of manufacturing large metal components from the perspective of the use of different AM technology and quality control in casting. However, such integration is insufficient for producing large castings with complex shapes, structures, or multiple features. Therefore, a novel method for integrating AM into casting to enable the manufacture of large scale metal parts with complex shapes is introduced as a topic for possible future research. This method divides complex castings with multiple features into an AM processing part and the casting substrate. The complex features were processed by AM on the fabricated casting substrate. This study provides a review of the application of AM into casting and presents a novel idea for the integration application of AM and other processes. This promising method has significant value for future study.

增材制造（AM）是一种新颖的制造技术，可以创建比传统技术更复杂的几何形状的高度定制化产品。尽管AM具有显着的优势，包括设计自由，大规模定制和制造复杂结构的能力，但AM消耗大量能量并招致高昂成本。另外，在金属结构的大规模制造中，AM遭受长生产周期和低生产效率的困扰。这项研究回顾了有关金属增材制造技术的现有文献。为了避免AM的缺点并强调其优点，AM被广泛用于与铸造结合的制造中。从在铸造中使用不同的AM技术和质量控制的角度，回顾了AM和铸造的当前组合应用，以提供解决大型金属部件制造问题的解决方案。然而，这种集成不足以生产具有复杂形状，结构或多个特征的大型铸件。因此，作为将AM集成到铸件中以制造具有复杂形状的大型金属零件的新方法，被引入作为可能的未来研究的主题。该方法将具有多个特征的复杂铸件分为AM处理零件和铸件基材。在制造的铸造基材上通过AM处理复杂的特征。这项研究综述了AM在铸造中的应用，并提出了将AM与其他过程集成在一起的新思路。这种有前途的方法对未来的研究具有重要的价值。