On November 9, 2025, the 15th National Games of China opened at the Guangdong Olympic Sports Center in Guangzhou. Among the highlights of this event showcasing “Made in China” innovation, the National Games torch, named “Bloom”, captured attention for its intricately designed petals. Behind this striking structure lies the enabling power of metal 3D printing technology.
Han’s Laser played a key role in bringing the torch’s complex petals to life, providing technical support for the precise formation of this highly challenging component.
Integrated Precision Manufacturing
The “Bloom” torch features spatially twisted, interwoven petals, a representative example of complex, non-standard geometries ideally suited for 3D printing.
Using digital model-driven additive manufacturing, the petals were produced as a fully integrated structure. This approach ensures the complete fidelity of complex spatial arrangements and fine features, maintaining structural integrity while accurately translating the original design intent. By forming the petals as a single piece, Han’s Laser minimized assembly steps and potential structural weak points, demonstrating the efficiency and reliability of integrated metal 3D printing.
Precision Assembly with Heterogeneous Materials
To balance lightweight design with high-temperature performance, the development team applied a multi-material 3D printing strategy. The main petal bodies were printed in aluminum alloy to reduce weight, while the top combustion sections used heat-resistant stainless steel.
Following thermal treatment, the assembly precision of heterogeneous materials was consistently maintained within ±0.1 mm, highlighting the controllable accuracy of multi-material additive manufacturing. Optimized material distribution and structural design not only ensured functional reliability but also established a benchmark for lightweight, high-performance component design in advanced equipment.
Efficient and Intelligent Manufacturing
By employing multi-laser collaborative printing, the manufacturing process achieved significant improvements in both efficiency and precision. Tasks that traditionally required several weeks were completed in just 72 hours, all while maintaining micron-level manufacturing accuracy. This advancement enabled rapid, repeatable production, meeting the project’s critical milestones with confidence.
The torch petals’ production underscores the practical value of metal 3D printing for complex components, demonstrating that additive manufacturing can deliver both precision and speed in highly demanding applications.
Applications Beyond the Torch
The techniques validated during the torch project are now being applied in other high-end sectors, including:
- Medical devices – for customized, precise components
- Automotive parts – for lightweight, structurally optimized designs
- Precision molds – for complex, high-accuracy tooling
Han’s Laser looks forward to partnering with more global industries, using metal 3D printing technology to solve manufacturing challenges, improve production efficiency, and drive transformative upgrades in industrial manufacturing.
If you are exploring advanced metal manufacturing solutions or looking to integrate 3D printing into your product development, our team is ready to assist. Reach out to Han’s Laser to discuss your application needs and technical requirements.