Welding Equipment Repair and Calibration

 

           

 

 

 

 

Here at National Welding and Industrial Supplies, we have the best technicians in the industry. Our technicians are authorised to work for Lincoln, WIA, Miller, SIP, Unimg, Weldmaster, Bossweld, and Tecna Reci.Riland and All kinds of laser welders. And Easybeat. We repair any welding machine, whether IGBT or Mosfet, inverter-based or transformer-based. Whether it be Stick/MMA/arc, Tig welders, Plasma cutters, Mig welders, Stud welders, Butt welders, Spot welders, Power Tools, Laser welders and even custom-made machines, Our team knowledge is contributed to our design for Easybeat spot welders. We not only repair spot welders but also make them.

Experience, you can trust us to help you.

We do repair Lase welders

 

Repairing a laser welder involves diagnosing issues with its laser source, optics, cooling system, electronics, or mechanical components. Below is a step-by-step guide to troubleshooting and repairing common problems:

1. Common Laser Welder Issues & Solutions
A. No Laser Output or Weak Beam
Possible Causes:

Faulty laser source (diode, fiber, or CO₂ module).

Dirty or misaligned optics (lenses, mirrors, collimators).

Power supply failure.

Cooling system failure (overheating protection triggered).

Repair Steps:

Check Power Supply – Ensure voltage/current matches specifications.

Inspect Optics – Clean lenses/mirrors with IPA (isopropyl alcohol) and realign if necessary.

Test Laser Source – Use a power meter to verify output; replace if degraded.

Cooling System Check – Confirm water chiller (if applicable) is running and temperatures are stable.

B. Poor Weld Quality (Splatter, Cracks, Weak Joints)
Possible Causes:

Incorrect power/focus settings.

Contaminated workpiece (oil, oxidation).

Worn or damaged focusing lens.

Repair Steps:

Re-calibrate Focus – Adjust the Z-axis to ensure proper focal spot size.

Replace Lens – If scratched or coated with debris.

Optimize Parameters – Adjust pulse duration, power, and frequency per material requirements.

C. Mechanical Movement Issues (Axis Not Moving)
Possible Causes:

Stepper/servo motor failure.

Loose belts or damaged ball screws.

Faulty controller/CNC board.

Repair Steps:

Check Connections – Inspect wiring to motors and controllers.

Test Motors – Manually move the axis to detect resistance.

Replace Components – Belts, bearings, or drivers as needed.

D. Cooling System Failure (Overheating Alarms)
Possible Causes:

Clogged water lines (in water-cooled systems).

Faulty pump or temperature sensor.

Low coolant levels.

Repair Steps:

Flush Cooling System – Remove blockages with distilled water or a mild cleaning solution.

Replace Pump/Sensor – If malfunctioning.

2. Safety Precautions
Laser Safety: Always power off and disconnect before servicing. Use appropriate laser safety goggles.

Electrical Safety: Discharge capacitors in high-voltage systems (e.g., flashlamps in pulsed lasers).

Coolant Handling: Avoid spills (especially in glycol-based systems).

3. When to Seek Professional Repair
Laser Tube/Diode Replacement – Requires calibration by a technician.

Optical Realignment – Critical for collimation and beam quality.

CNC/Software Issues – May need factory firmware updates.

4. Recommended Replacement Parts
Optics: High-reflectivity mirrors, AR-coated lenses.

Laser Source: OEM diode/fiber modules.

Cooling Components: Pumps, filters, chillers.

If you need help diagnosing a specific issue, share:

Laser welder model (e.g., IPG, Trumpf, DIY).

Symptoms (error codes, unusual noises, etc.).

Maintenance history (recent part replacements, crashes).

 

However, in our experience cheap copy machines from unknown internet sellers are often uneconomical to repair. Especially machines with no branding and without any Australian support. These machines often have inherent design flaws and parts that are hard to come by. As such we won't attempt to repair these types of machines.

 

We are based in Wetherill Park, NSW. We do have a pickup delivery service.

 

Sales@nationalwelding.com.au

SMS: 0400213734

Tel: 02 96045222

 

 

 

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