A revolution in scanned based laser material processing

3 axis heads state of art SEI 3 axis head was designed in 1999 2007 over 630 systems installed It opened a way for many news laser applications Recently new developments in galvo motion allow a come back of 2 axis systems in some applications (RAM20 is SEI answer), Recently new 3 axis competitors Still remains the only one able to cover areas from 200---500 mm without optical changes Highlight: general purpose, medium small spot sizes at large marking areas, flexible and easy adaptable at serveral applications, interfacing and SW Disavantages: slow accelerations (deptails at high speed), spot size for cutting at 500-800 is not enough, burned points, etc.

Laser processing needs Cutting /half cutting / high deptail processing up to 800x800 marking areas High accuracy in laser energy distribution (no starting points, no localized burning or flame) Higher than state of art production capabilities Very easy to use and re-configure Fit in cost One year ago SEI taked decision to develop a brand new high aperture high speed 3 axis head:

A revolution in 3 axis scanning heads 230Vac Power supply Ethernet LAN, Rs232/485, D I/O, Encoder, Stand alone, etc. In-line camera (option) Laser power 115---600W Water cooled (option) Objective / Dynamic z inside Sealed off Designed for high reliability Able to control CO2 lasers Designed to easy OEM integration

i-Scan vs standard 3 axis Smallest spot sizes at defined working areas High quality cutting 3 axis standard i-Scan Typical limit

i-Scan optical characteristics #2 optical set-up Preliminary data i-Scan working areas vs spot sizes

Galvo controls Old control Velocity Command Actual velocity Velocity Command Actual velocity New control The best laser energy distribution Old control New control No burned point No acceleration evidences Perfectely uniform

Giotto i-Scan All electronic inside 115 / 230 W laser power External chiller #2 optical setup to standard area (350----750) big areas (600----1600) LAN, RS232, RS485, CAN-bus, DI/O, encoder Remote diagnostic Shutter, pointer, camera (option) Preliminary data (to be confirmed) 350x350 mm2 800x750 mm2 450 mm 1100 mm

i-Scan applications Legend: P= poor, M= medium, O= optimum i- Scan move to large areas what were possible at 300x300 mm2 with standard 3 axis