Laser Processing Heads

Laser Processing Head PDT

These are the properties which allow the II-VI PDT to tap into applications for time- and cost-saving laser brazing and welding. With this self-controlled laser machining head, it is possible to utilize rational laser technology without technological effort, e.g., for welding trunk lids, for roof and sealing duct brazing or for brazing and welding overlap joints (fl ange welds and fi llet welds).

The problem-free use of the PDT is based on a tactile servo motor assisted seam tracking, which is integrated in the machining optical system. This involves a tactile sensor fi nger, optionally with or without a wire, via an optic-mechanical rotary motion that is directly coupled with the focus guidance system. This industry proven technology make the PDT fi rst choice for highly dynamic 1 μm laser material processing applications such as body-in-white welding.

The processing head can traverse the laser focus to the precise welding or brazing position and then safely and accurately guide it over the workpiece during the process. This compensates for tolerances of the component part and inaccuracies of either the programming or the handling machine. The path can remain unchanged, thus signifi cantly simplifying control.

With the help of a PC-based user interface, a parmeterization of the head (control functions, inputs and outputs) is possible.

Applications
Laser welding or laser brazing of fillet and edge-formed seams

System Features

  • Optimized modular optical systems
    · Laser brazing
    · Laser welding
    · Optic modules with focus forming
  • Tactile seam tracking with servo motor support
    · Accurate adjustment of wire/tactile sensor
    · Wide angular sensor range for optimized component access
    · Absolute values for process point
    · Direct control via Interbus (or similar)
    · PC program for parameter set-up
  • System integration
    · Cross jet for extended cover slide life time
    · CCTV viewing system with integrated illumination of process point
    · Robot adaptation with crash sensor
    · Interface to PLC
Applications
Materials Processing, High Power 1μm Laser Processing, Laser Processing Heads, HIGHYAG

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