Additive Manufacturing (AM) or 3D printing has enabled the production of increasingly complex parts that are difficult to produce with conventional manufacturing methods. Its additive nature has made it possible to create interlocking parts in a single production step. This creates opportunities for new ways of designing and producing mechanisms, which do not need to be assembled after production, called non-assembly mechanisms. Non-assembly mechanisms are different from traditional mechanisms, since they show an unprecedented integration between geometry, material and structure. In this review, by means of a systematic literature search the current state-of-the-art of non-assembly mechanisms is reviewed and analyzed based on the challenges encountered in their design and production. The found examples were categorized according to types of mechanism that have similar production considerations. Per category is discussed what the challenges and opportunities are for the design of non-assembly mechanisms. This review aims to provide a helpful overview of best-practice examples that can be used as inspiration for further development of innovative non-assembly mechanisms.

增材制造（AM）或3D打印使得能够生产越来越复杂的零件，而这些零件很难用传统的制造方法生产。它的添加特性使在单个生产步骤中制造互锁零件成为可能。这为设计和生产机制的新方法创造了机会，这种新方法不需要在生产后进行组装，称为非组装机构。非组装机制与传统机制不同，因为它们显示出几何，材料和结构之间前所未有的整合。在这篇综述中，通过系统的文献搜索，基于非组装机构的设计和生产中遇到的挑战，对非组装机构的最新技术进行了回顾和分析。根据具有相似生产注意事项的机制类型对找到的示例进行了分类。按类别讨论了非组装机制设计面临的挑战和机遇。这篇评论旨在提供最佳实践示例的有用概述，这些示例可以用作进一步创新非组装机制的灵感。