Additive manufacturing is playing an increasingly important role in the manufacturing industry and is mainly used in toolmaking and prototype construction.

The worldwide manufacturing sector is shifting toward smart manufacturing, with Industry 4.0 leading the way by promoting greater efficiency, reduced costs, and intelligent, adaptable production processes. The nine key technologies of Industry 4.0 encompass Big Data, Layered Manufacturing, Cloud Technology, Automation, System Integration, Internet of Things, Cybersecurity, Augmented Reality, and Simulation.

As the utilization of 3D printing expands across the broader spectrum of industrial manufacturing, the significance of this technology extends beyond its role as a rapid prototyping tool. This article provides an overview of the applications of 3D printing in the fabrication of molds and dies for processes such as injection molding and die casting.