Development and Outlook for the FDM Printed Nozzle Structure

The nozzle is one of the parts of a 3D printer that cannot be missed because of its widespread popularity in recent years. The nozzle's structure determines the quality of the printed product; therefore, selecting a suitable nozzle structure is crucial. With the advancement of 3D printing technology in recent years, 3D printers have progressively come under investigation. Examining the design of the nozzle, feeding mechanism, and printing platform can help to increase the quality of the prints. The design and enhancement of the nozzle structure are beneficial to the advancement of 3D printing technology since it is one of the key elements influencing print quality. Using the research methods, research content, and invention structure of the most recent representative patents on this nozzle structure, the features and operating principle of the 3D printed nozzle structure are illustrated. To classify and examine the nozzle temperature and nozzle clogging that impact the nozzles, a patent analysis of various types of 3D printing nozzle structures is carried out. Future trends in 3D printing nozzle structures are also covered. The issues caused by nozzle work can be resolved to increase product quality and precision by comparing various 3D printing nozzle structures. This will also lead to the invention of more relevant patents in the future, including those about printing numerous nozzles and high-strength metals.