BLT surpasses 100,000 copper alloy parts produced on its 8-laser BLT-S400

Bright Laser Technologies disclosed that cumulative production of copper alloy components on its BLT-S400 laser powder bed fusion (PBF-LB/M) system crossed 100,000 units as of March 2026, marking what the company described as evidence of repeatable, high-volume additive manufacturing in a material class historically resistant to industrial-scale processing.

Copper and its alloys pose particular challenges for laser-based AM. High optical reflectivity hinders laser energy absorption, while the material’s high thermal conductivity can lead to rapid heat dissipation and unstable melt pools during processing. Several companies have addressed these challenges: in the US, Colibrium uses Arcam’s EBM systems to process copper. In Europe, ATLIX (formerly Trumpf AM) was among the first to develop a special laser to handle copper’s reflectivity. In China, the company Addireen has made copper AM production (via green laser PBF) its primary focus.

BLT addressed these issues on the S400 through an eight-laser configuration that maintains throughput without reducing dimensional precision and by supporting both red- and green-laser strategies to accommodate varying alloy compositions. The machine’s build length extends to 450 millimeters, increasing part density per build cycle—a meaningful efficiency gain for small, high-volume components such as heat sinks and optical communication modules.

Real production line integration

Reaching the 100,000-unit threshold required more than hardware. BLT built out a validated end-to-end workflow covering powder development, parameter qualification, and post-processing, drawing on production management experience from high-volume consumer electronics manufacturing. Predictive fault management, continuous operation capability, and active thermal control were embedded in both the machine design and operating procedures to maintain output quality during prolonged high-load runs.

The company also deployed automated production line configurations, integrating machines, factory planning, and process commissioning into turnkey operations. These lines support semi- or fully automated workflows and are designed to scale with customer requirements, targeting the gap between prototype-level output and repeatable industrial production.

Data centers and electronics are driving demand

The primary target sectors for BLT’s copper AM output are optical communications infrastructure, data center thermal management, and advanced electronics—segments where the complexity of component geometry and thermal performance requirements increasingly strain conventional manufacturing methods. Copper AM offers potential advantages in these areas through faster production cycles, reduced material waste, and the ability to produce internal geometries—such as conformal cooling channels—that are difficult or cost-prohibitive to machine or cast.

Remaining barriers to broader adoption include process standardization, per-part cost at volume, and quality assurance infrastructure, particularly for customers outside high-value, low-volume production environments.