TeSLA 1500 system

LASER BUTT-WELDING COIL-JOINER FOR ELECTRICAL STEEL COILS

TeSLA 1500

The system TeSLA 1500 is a laser welding and cutting device designed to be inserted into coil lines and specifically produced to operate on electrical steel sheets characterized by very reduced thicknesses.

The TeSLA 1500 is capable to perform the head-to-head junction (butt weld) of the head and tail of two coils without overlap of the GOES strip, with high accuracy, in short time and in complete automation.

The TeSLA 1500 system allows the realization of a laser welding process designed specifically in order to provide to the welding joints, dimensions and mechanical characteristics that:

• ensure the resistance of the weld

• allow subsequent processing without damaging the cutting and/or shearing tools

• allow the winding of the welded coils without damaging the material.

For those reasons, the system TeSLA 1500 can be used:

• independently, for the production of big dimensions coils starting from coils of smaller dimensions, optimizing the production and reducing scraps

• inside complex line for special applications such as laser scribing complex and cutting, shearing and punching lines.

The laser butt-welding coil-joiner TeSLA 1500 presents two independent clamping devices on sliding base frame.

The two clamps are initially spaced in order to realize the two cutting operations then they are  brought closer in order to permit the welding operation.

Hydraulically controlled transverse positioning makes it possible to eliminate any misalignment between the two edges to be weld.

The cutting and welding heads are driven by a three-axis Cartesian gantry.

A dedicated laser cutting head permit to prepare the strip head and tail with the characteristics of quality for the subsequent welding operation.

TeSLA 1500 OPERATION SEQUENCE

• Transverse alignment of coils head and tail and clamp closing;

• First laser cutting;

• Second laser cutting;

• Fine movement of the clamps;

• Laser welding;

• Flattening operation;

• Clamps opening

CHARACTERISTICS OF THE WELDING PROCESS

REMOTE TECHNICAL SERVICE

The TeSLA 1500 CNC numerical control is appropriately configured and arranged for a remote technical assistance service.

This service enables assistance to be provided quickly and with the possibility of replacing damaged files, downloading customer files for carrying out analyses, sending updates, etc.

The Technical Service personnel is thus able to carry out an initial analysis of possible problems, also in the perspective of programming the type of intervention with the due precision.

MAIN TECHNICAL SPECIFICATIONS

• Strip width: standard version up to 1250 mm

• Strip thickness: form 0,18 mm up to 0,50 mm

• Laser sources: Fiber Laser, Solid State Laser

• Laser Power: 1500 W

• Position accuracy of the axes of the welding and cutting heads: + 0,1 mm

• Repeatability of the axes of the welding and cutting heads: + 0,05 mm