Flying-optics laser cutting machine has automatic focus control

February 7, 2006

The Echo III flying-optics laser from Han Kwang USA features a small footprint, fast positioning speed, and automatic focus control.

The unit's Panasonic resonator generates the laser beam, and the flying-optics design enables the machine to cut complex metal parts with holes and cutouts. The shuttle table runs at 1,200 IPM for enhanced loading and unloading of workpieces.

The Siemens Sinumerik 840D CNC has a PC interface, 10-GB hard drive, 2-MB memory, and network-based remote diagnostic support. Optics move in the X and Y axes, enabling the material to remain stationary. Dual Siemens linear motor drives allow for positioning speeds of 6,693 IPM with 0.004-in. accuracy.

Automatic focus control with 0.375-in. focal length variation is achieved through air pressure deformation of a hardgold-coated mirror.