The 3D printing industry is evolving at a remarkable pace. In 2022, the National Additive Manufacturing Innovation Center passed its final acceptance inspection. Today, this center provides advanced product development solutions across various industries. These platforms now demonstrate the critical role of 3D printing in engineering and technical services.

3D Printing in the Shipbuilding Industry

Recent data highlights a significant shift in industry structure. In 2019, industrial applications accounted for 64% of the 3D printing service market. The shipbuilding sector, a cornerstone of traditional industry, has recently embraced this technology. For instance, the University of Maine recently unveiled a 7.6-meter 3D printed boat weighing over 2,200 kg.

Conversely, physicists at Leiden University used 3D printing services to create the world’s smallest boat. At only 30 microns long, this tiny vessel is just six times larger than a bacterial cell. Researchers used scanning electron microscopes to capture its chimneys and portholes. They hope to apply this micro-technology to targeted drug delivery within the human body.

Additive vs. Subtractive Manufacturing

What defines the difference between traditional and additive manufacturing? Traditional subtractive processes involve cutting, grinding, or engraving materials from a solid block. In contrast, 3D printing builds objects layer by layer. This method uses only the necessary material, which eliminates excess waste and shortens construction periods. Furthermore, 3D printed hulls are lighter and faster, maintaining high strength while reducing stability risks.

Repair, Remanufacturing, and Personalization

Industry experts emphasize that 3D printing excels in small-batch production and repairs. For example, engineers can spray high-performance alloys onto worn metallurgical machinery to restore precision. This process often makes old equipment perform better than new products. If a part is damaged and the original supplier no longer exists, 3D printing provides a direct repair solution at a low cost.

As consumer demand for personalization grows, 3D printing will integrate with robotics and automation. This synergy improves the flexibility of production lines. By producing customized products at lower costs, 3D printing drives the transformation of traditional manufacturing toward precision and individualization.

Barry Zeng
Senior Manufacturing Engineer, Shanghai Yunyan Prototype & Mould Manufacture Factory
Specializing in large-scale industrial 3D printing and marine component prototyping.