BLT Unveils Ultra-High Precision Metal 3D Printing Technology with Dimensional Accuracy Below 0.05mm

△BLT’s LPBF 3D printed parts

A Novel High-Precision Metal LPBF Technology

Traditional metal LPBF technology has long been the cornerstone of additive manufacturing, yet it often falls short when producing small parts with high surface quality and precision. Surface roughness and dimensional accuracy have remained critical bottlenecks, limiting its application in fields that demand stringent standards.

To date, only 3DMicroprint has made notable progress in this area, successfully manufacturing a few highly precise micro-components. However, market adoption has been slow.

BLT's high-precision metal LPBF technology addresses these issues by refining the laser fusion process and optimizing material deposition. The technology delivers significant improvements in surface roughness and dimensional accuracy. The new approach enables the production of parts with surface roughness as low as Ra 2-3μm and dimensional accuracy below 0.05mm. This level of precision opens new possibilities for manufacturing components requiring intricate details and smooth surfaces, such as those used in medical devices, aerospace, and advanced engineering.

F-RD Topology Model

A highlight of BLT's innovation is the development of the F-RD topology model. This sophisticated design showcases the potential of the new technology. The F-RD model, based on algorithmic digital design methods, can create periodic minimal surfaces with complex curvature variations. This design not only demonstrates the advanced capabilities of BLT's metal LPBF technology but also highlights the improved surface texture quality that can be achieved compared to traditional methods.

The G-RD model serves as a proof of concept, illustrating how digital design can be seamlessly integrated with advanced manufacturing technologies to produce structures previously unattainable with such precision and quality. This model underscores BLT's potential to push the boundaries of additive manufacturing.

Practical Applications of BLT Technology

BLT's high-precision metal LPBF technology has proven its value in various practical applications. For example, in the medical industry, where precision and quality are paramount, BLT has successfully produced small medical components with complex internal channels, meeting rigorous quality standards. The high precision and superior surface finish of these parts underscore the technology's advantages in producing critical components for the medical field.

Another example is BLT's collaboration with the MicroNeuro project to develop advanced structural components. This partnership not only shortened development time but also increased material efficiency, demonstrating the effectiveness and impact of BLT's technology in designing complex components.

One particularly challenging application was the production of stainless steel threaded parts with a thickness of only 0.1 mm. BLT's technology achieved this without the need for support structures, and the final components had a surface roughness of Ra ≤ 1.6 μm. This case highlights the technology's precision and capability in producing complex, high-quality components that meet stringent specifications.

BLT aims to expand the application of metal LPBF technology across various industries, from aerospace to biomedical engineering.