Optics for cutting with an off-axis laser beam

G. C. Lim

doi:10.1117/12.167580

1 February 1994 Optics for cutting with an off-axis laser beam

G. C. Lim

Proceedings Volume 2062, Lasers as Tools for Manufacturing; (1994) https://doi.org/10.1117/12.167580
Event: Optical Tools for Manufacturing and Advanced Automation, 1993, Boston, MA, United States

Abstract

Programmable hole sizes and shapes may be cut by trepanning a beam focus on the workpiece. In order to minimize the number of optical elements, a device which relies on offsetting the focusing lens axis from the beam axis was used. Since the beam focus always moves with the lens, holes may be cut by moving the lens axis around a stationary beam. Optical analysis on the effects of an off axis beam on its focus spot aberration, size and position were performed. Their effects on cut quality will also be presented. This study also provides an insight into how accurately a laser beam needs to be aligned with the lens center in order to obtain good quality cutting.

Citation Download Citation

G. C. Lim "Optics for cutting with an off-axis laser beam", Proc. SPIE 2062, Lasers as Tools for Manufacturing, (1 February 1994); https://doi.org/10.1117/12.167580

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