Machine manufacturer BLT may be achieving another milestone in the AM industry with the launch of a metal 3D printer that is equipped with 20 fiber lasers. So far, the biggest number of lasers we ever saw in an industrial 3D printer is 12, in the NXG XII 600 from SLM Solutions.
Named BLT-S800, the new metal 3D printer can process titanium alloy, aluminum alloy, high-temperature alloy, stainless steel, high-strength steel, and tool steel. Its applications span across various industries, including aviation, aerospace, engine, medical, automotive, electronics, mold, and research institutes.
Key characteristics
In a single machine, BLT decided to optimize wind field, powder circulation system, and production through in-house software.
To support the synchronized operation of 20 lasers, solutions that effectively disperse any black smoke and splatter generated during multi-laser printing have been developed, ensuring this way parts quality. Simultaneously, they ensure the optical lenses remain clean, guaranteeing uninterrupted printing processes.
Efficient powder recovery plays a pivotal role in mass production workflows. The BLT-S800 comes with a powder circulation system designed to safely transfer, recover, sieve, and recycle metal powders in an on-site test lab. This system simplifies and secures the movement of large volumes of 3D printing powders from containers to multiple machines, effectively eliminating the risks associated with spillage, contamination, explosions, or contact with personnel. This system empowers manufacturers to meet their serial production needs while achieving substantial cost savings in their operational endeavors.
Configured with BLT-BP, the BLT-S800 offers the capability for streamlined profiling of large-sized parts. This reduces the time spent on profiling and preparation and enhances efficiency during the printing process. Even for parts with a substantial 25G data volume, the required profiling time is merely 30 minutes, press release reads.
In an effort to reduce production cycles, machine manufacturers are continuously exploring the option of additional lasers in their 3D printers. At first glance, in a very practical way, within the same floor space, one of the first advantages of increasing the number of optical paths with 20 synchronized lasers is that one directly increases production capacity and plant efficiency without the need for extra equipment, additional factory space, or more operating personnel.
However, AM users should keep in mind that muli-laser 3D printers come with a range of complexities and opportunities. In a previous dosser, we discussed when “more” means “better”. Read more: Dossier: Understanding the complexities and opportunities of Multi-Laser Additive Manufacturing.
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