Scanlab's new scan head to optimise both AM integration and operation

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Scanlab will be showcasing a new scan head for additive manufacturing (AM) at Formnext 2019 in Frankfurt in November.

The FiberSYS scan head has been designed to be an all-in-one solution that both those experienced in and new to AM can use to quickly and easily create high-efficiency multi-laser systems and scalable machine designs. The compact scan system optimises machine assembly times for integrators and fabrication process times for users.

The 3D printing sector has been utilising multi-head machines for many years. Productivity for large-area workpieces in particular can be significantly enhanced by combining multiple scan systems with high-overlap image fields. The new system was developed with this key relationship in mind. Its exterior dimensions and beam exit location are optimised to facilitate maximum overlap between adjacent scanners.

With nearly 30 years of experience, Scanlab is a renowned expert in laser beam positioning for additive manufacturing. This application know-how has been applied to the new FiberSYS as a turn-key system solution that vastly simplifies machine construction. Machine builders can now concentrate completely on laser processes, without being burdened by their tool’s optomechanical design complexities.

The new scan system is configured for control via an RTC board, and for deflection of multi-KW single-mode fibre lasers. The sealed dust-proof scan head features a fibre adapter for direct connection of the laser, as well as a process monitoring interface. Ultra-low-drift galvos with digital encoders are regulated via the newest generation of servo electronics. In combination with its optimally designed mirrors, the system delivers exceptional imaging quality and high dynamic performance. Its pre-focus configuration with integrated z axis enables scan head usage without an F-Theta objective, thus reducing thermal drift.

The new metal-based additive manufacturing scan solution is orderable starting Q2 2020. Scanlab will issue design recommendations for optimal usage of multiple scan heads, but this is also an open, modular system platform flexibly adaptable to customer-specific requirements.

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