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Calibration Processes in Laser Welding: How to Comply with New Standards?

As laser welding technology becomes more common in industrial production, calibration procedures are gaining critical importance. A laser welding machine can only deliver optimal quality through proper calibration. But how is it done, and why is it so essential?

What Is Laser Welding Calibration?

Laser welding calibration involves fine-tuning beam power, focus, movement, and application parameters through precise measurement tools. This process is vital for production accuracy, quality control, and machine longevity.

Why Are New Standards Important?

Standards like ISO 20685, ISO/TR 17671-5, and IEC 60825 define technical requirements for using laser welding machines. Compliance is crucial for ensuring both safety and quality.

Impact of Calibration on Laser Welding Machines

  • Improved Weld Quality: Creates smooth, defect-free joins.
  • Energy Efficiency: Prevents excessive power use.
  • Extended Machine Life: Reduces risk of overload.
  • Reduced Error Rates: Minimizes scrap and rework.

Key Steps in the Calibration Process

  1. Testing laser beam power
  2. Verifying focal point accuracy
  3. Checking axis movements
  4. Monitoring cooling systems
  5. Validating sensor and software integration

How Often Should Calibration Be Performed?

According to industry standards, calibration should occur every 3–6 months depending on usage. For robotic laser welding systems, even shorter intervals may apply.

Calibration Differences Across Welding Machines

Machine Type Calibration Frequency Notes
Fiber Laser Welding Machine Every 6 months Low maintenance required
CO2 Laser Welding Machine Every 3 months Optics cleaning essential
Robotic Laser Welding Every 2 months Test axis precision regularly

Laser welding machines are core assets in industrial production. However, their efficiency and quality rely heavily on regular laser welding calibration. Proper calibration ensures high quality, lower costs, and fewer technical issues.

Frequently Asked Questions (FAQ)

Why do laser welding machines require calibration?

Parameters like power and focus may shift over time, leading to reduced performance.

Who should perform calibration?

Only certified technicians or the machine manufacturer should carry out the calibration process.

What happens if calibration is skipped?

It can lead to welding defects, increased power consumption, and machine damage.