Posted to News on 6th Feb 2019, 19:24
New galvo scanner suits laser micromachining and AM
Aerotech is introducing the AGV-SPO high-performance galvo scanner that offers a larger field of view than conventional 2D scanners, reduces laser spot distortion, and is versatile enough to accommodate a wide range of laser wavelengths thanks to a large variety of mirror surfaces. As a result, the laser scanner is suitable for a broad spectrum of applications, from laser micromachining to additive manufacturing (AM) in many diverse industries.
With just one pivot point for X and Y deflection, Aerotech's AGV-SPO galvo scanner significantly increases the field of view, thereby reducing laser spot distortion in critical laser micromachining applications. Due to the special optical design, the entrance pupil of the laser beam coincides with the X and Y deflecting mirrors, which increases the effective numerical aperture of the scanner system. The design immediately increases the field of view for a given focal length and reduces laser spot distortion throughout the working area. With the new Galvo Scanner, even larger parts can now be processed faster and with improved uniformity.
Aerotech's AGV SPO scanner provides a range of mirror coatings and focusing optics to support a variety of commonly used laser wavelengths and focal lengths. Furthermore, customer-specific optics and optical mounting options can be adapted to order. Optional air-cooled mirrors and/or water-cooled motors ensure constant-temperature conditions and continuously good work results, even with high laser powers or highly dynamic motion profiles.
Advanced motion control
The laser scanner benefits from the high performance of Aerotech's controllers with their advanced motion control and position synchronised output (PSO). In addition, path control functions such as acceleration limitation provide the ability to automatically reduce scanning speed in tight bends or small radii to minimise overshoot. The laser can also be triggered based on the position feedback of the mirrors via the PSO. This ensures a consistent laser spot overlap when the scanner changes speed.
Aerotech's Infinite Field of View (IFOV) feature seamlessly combines servo drive and scanner motion to extend laser marking across the entire servo axis travel range. This avoids stitching errors that can occur during the move expose repeat process.
Follow the link for more information about Aerotech's new AGV-SPO high-performance galvo scanner.
