Laser Process Monitoring

Process Monitoring

Process Adapters PA HP1.5" / HP2" / HP2" M

Process monitoring as combination of piercing and lens fault sensor.

System types/Lasers:

  • CO2 laser

Features:

  • monitoring takes place online
  • monitoring of the piercing and cutting process
  • detection of damage to the lens (burn penetration) and larger areas of burned-in spatter
  • working with actual piercing times
  • detection of cutting breaks
  • suitable for use with HP1.5" / HP2" / HP2" M cutting heads

Technical Specifications:

  • weight PA HP1.5": 0.5 kg
  • weight PA HP2" / HP2" M: 0.7 kg
  • dimensions PA HP1.5": 112 x 88.5 x 24 mm
  • dimensions PA HP2" / HP2" M: 140 x 104 x 22 mm

Subject to change without notice.

More Details

Detection of damage to the lens during the process.

System types/Lasers:

  • CO2 lasers

Features: 

  • detection of damage to the lens (burn penetration) and larger areas of burned-in spatter
  • prevention of further damage, e.g. soiling of the processing system caused by the destruction of the lens
  • sensors supplied in two geometries

Technical Specifications:

  • mass: about 30 g
  • dimensions square form: 35 x 45 x 18 mm
  • dimensions cylindrical form: length 60 mm ø 20 mm

Subject to change without notice.

Monitoring of the piercing and cutting process.

System types/Lasers:

  • CO2 lasers

Features:

  • monitoring takes place online
  • working with actual piercing times
  • detection of cutting breaks
  • retrofittable to all Precitec CO2 cutting heads
  • sensor systems consisting of sensors, analysis unit and preamplifier

Technical Specifications:

  • mass: 0.8 kg

Subject to change without notice.

Laser Welding

Seam Geometry Monitor SGM

Post Process. Optical online seam inspection system.

Examples of use:

  • laser beam welding, hybrid welding, cladding
  • MIG, MAG and plasma welding
  • used in
    • automotive engineering
    • shipbuilding
    • railway vehicle construction
    • aircraft construction

System types/Lasers:

  • robot
  • gantry systems
  • remote and scanner systems
  • orbital systems
  • for all Nd:YAG, disc and fibre optical solid-state lasers, as well as diode and CO2 lasers

Features:

  • automated weld seam inspection
  • can be adapted for all established types of processing heads
  • automatic data backup
  • definition of error categories
  • Windows-based software
  • SQL database
  • time-sharing operation
  • 100% documentation
  • remote control and maintenance
  • PLC communication
  • can be combined with LWM Sensors DIODE

Technical Specifications:

  • scan rate: 500 Hz - 1500 Hz
  • picture width: 6 - 30 mm
  • camera resolution: 0.05 - 0.25 mm
  • mass: 300 g

Subject to change without notice.

More Details

Pre Process. Optical seam position recognition and seam tracking.

Examples of use:

  • tailored blanks
  • welding in
    • shipbuilding
    • body-in-white
    • power train

System types/Lasers:

 

  • gantry systems
  • orbital systems
  • for all Nd:YAG, disc and fibre optical solid-state lasers, as well as diode and CO2 lasers

Features:

  • control of lateral position
  • control of focal position
  • can be combined with various manufacturers' linear drives
  • simple integration
  • compensation of system tracking errors
  • optional documentation of tracking data
  • can be combined with LPF sensor systems

Technical Specifications:

  • number of digital inputs: 16
  • number of digital outputs: 16
  • number of programs that can be selected: 128
  • operating system: Windows XP
  • weight (base platform): about 25 kg

Subject to change without notice.

In Process. Online process monitoring in laser material processing.

Examples of use:

  • in welding: laser beam, hybrid, cladding, brazing and drilling tasks
  • used in
    • automotive engineering
    • shipbuilding
    • railway vehicle construction
    • aircraft construction

System types/Lasers:

  • robot
  • gantry systems
  • remote and scanner systems
  • orbital systems
  • for all Nd:YAG, disc and fibre optical solid-state lasers, as well as diode and CO2 lasers

Features:

  • multi-sensor system
  • automatic real-time monitoring
  • automatic data backup
  • definition of error categories
  • rejection of faulty parts
  • Windows-based software
  • SQL database
  • time-sharing operation
  • error analysis statistics
  • 100% documentation
  • remote control and maintenance
  • PLC communication
  • can be combined with LWM sensors DIODE and LWM Camera HSCAM

Technical Specifications:

  • number of digital inputs/outputs: 16 each
  • number of programs/can be expanded to: 32/128 to 256
  • number of data channel that can be processed simultaneously: max. 8
  • real-time data recording/processing
  • number of photo diodes: max. 8
  • photo diode scan rate: max. 40 kHz
  • camera scan rate: 1500 kHz (typ.)

Subject to change without notice.

The In-process Depth Meter IDM can be used to perform distance measurements even when processing with high power lasers. The seam depth is a significant and critical seam property value in laser beam welding. The Precitec IDM system determines the penetration depth in the deep welding processes at all metal-to-metal joints.

The integration of the Precitec IDM in new or existing LWM process monitoring systems allows to detect process irregularities without relating them to physical measures and permits the comparison with the set thresholds. Smallest deviations inside the vapor capillary can now be used for component evaluation. Due to the simultaneous distance measuring to the workpiece surface TwinTec distance changes during processing do not distort the measurement result. Only its absolute depth is used for the quality assessment of a workpiece.

The process emission has no influence on the measuring accuracy. Powertrain or laser welding of body panels are application examples.

 

  • autonomous in-process measurement system
  • non-contact measurement
  • reduces destructive component testing
  • easy to integrate into existing machines
  • compact design
  • proven sensor technology
  • sampling rate: up to 70 kHz
  • measurement range: approx. 10 mm
  • synchronization with external devices: trigger input, synchronization output, encoder
  • interfaces: network, RS-422, 2x analog (0-10V)