Laser Scribing Complex

BAIDEL Group's laser scribing process and system have been developed with the aim to modify, opportunely, the state and size of the magnetic dominions in grain oriented electrical steel (GOES) sheets through the use of laser sources, in order to increase the overall material efficiency reducing its core losses. 

This effect is obtained irradiating a specific portion of the surface of the GOES sheet with a laser beam whose energy density and whose interaction time are carefully determined and controlled in order to:

• ensure the reduction of the core losses due to hysteresis cycle, when the material is subject to the action of an oscillating magnetic field 

• reduce the core losses due to eddy current

• avoid any damage to the surface coating

The Laser Scribing Complex is a stand alone application of the BAIDEL Group's Laser Scribing System, whose main components are:

• Uncoiling and Coiling Unit

• Laser Butt-Welding Coil-Joiner LBWCJ 1500 - a laser coil joiner specifically designed and developed for the butt-welding of electrical steel sheets characterized by very reduced thicknesses

• Laser Scribing System complete of:

- Online Watt Losses Measuraments Unit

    - Coating Intergrity Monitoring Unit 

TECHNICAL SPECIFICATIONS

• Strip width: up to 1200 mm

• Strip thickness: 0,23 – 0,27 – 0,30 mm

• Scribing optical bench: no. 2

• Laser source: Fiber Laser

• Laser Power: no. 2 x 5000 W (one for each optical bench)

• Travel speed of GOES sheet: 100 m/min

• Control system configured with remote technical assistance connection and service