Laser welding monitoring system Melt Travel Monitor

temperaturemeasurementprocess

Overview
TRUMPF melt travel monitor measures the lowering of the component during laser transmission welding of plastics and switches off the laser when a predefined melt amount is reached. A commercially available inductive melt travel sensor is connected to the scanner optics via an analogue interface. Melt travel data are displayed in the same software used for temperature control and can be stored in a Quality Data Storage (QDS) for later evaluation.

Key benefits

• Process control: Switches off the laser after a defined melt amount to control axial welding.
• Direct integration: Sensor interface located on PFO-series scanner optics for simplified installation.
• Traceability: Measurement series can be saved in QDS for quality evaluation.

Applications
Axial welding of plastic components, e.g. housings for electronic control units, sensors and actuators, using scanner optics where monitoring of component lowering and melt behaviour is required.

Compatibility
PFO 2D | PFO 3D | BEO D35 | BEO D70
TruFlow | - | - | - | -
TruDisk | - | - | - | -
TruPulse | - | - | - | -
TruFiber | - | - | - | -
TruDiode | Yes (PFO 2D) | - | - | -
TruMicro | - | - | - | -

Technical specifications

• Function: Monitors melt travel (component lowering) during laser transmission welding of plastics.
• Sensor type: Commercial inductive melt travel sensor connected via an analogue interface.
• Display & data: Melt travel displayed in temperature-control software; supports Quality Data Storage (QDS).
• Laser control: Laser can be switched off after predefined melt amount to improve process control.
• Integration: Sensor interface integrated on PFO-series scanner optics.