DMK Relfar FWH30-DS10E Handheld Laser Welding Head User Manual

1. Introduction

This manual provides essential instructions for the safe and efficient operation, setup, and maintenance of your DMK Relfar FWH30-DS10E Handheld Laser Welding Head. Please read this manual thoroughly before using the device to ensure proper function and to prevent injury or damage.

The Relfar FWH30-DS10E is an intelligent, dual-swing energy storage handheld laser welding head designed for various welding applications. It features a 5-in-1 function and a double wire feed system, offering precision and versatility.

2. Safety Information

WARNING: Laser radiation can cause severe eye and skin damage. Always wear appropriate personal protective equipment (PPE) when operating this device.

• Eye Protection: Always wear certified laser safety glasses that are appropriate for the laser wavelength and power of your system. Never look directly into the laser beam or its reflection.
• Skin Protection: Wear protective clothing, gloves, and other appropriate gear to prevent skin exposure to laser radiation.
• Ventilation: Ensure adequate ventilation in the work area to remove fumes and particulate matter generated during welding.
• Electrical Safety: Ensure the device is properly grounded and connected to a suitable power supply. Do not operate with damaged cables or connectors.
• Flammable Materials: Keep flammable materials away from the welding area.
• Authorized Personnel: Only trained and authorized personnel should operate this equipment.

3. Product Overview

The DMK Relfar FWH30-DS10E is a sophisticated handheld laser welding head designed for precision and efficiency. Key features include:

• Intelligent Dual Swing Energy Storage: Optimizes welding performance and efficiency.
• 5-in-1 Function: Provides versatility for diverse welding requirements.
• Double Wire Feed: Ensures consistent and reliable wire delivery during operation.
• Fiber Interface QBH: Compatible with standard QBH fiber interfaces for flexible laser source connection.
• Adjustable Spot Range: Offers precise control over the welding process with a 0-5mm adjustable spot range.

4. Setup

Before operating the Relfar FWH30-DS10E, ensure all components are correctly connected as described below.

4.1. Component Connection

1. Power Supply: Connect the welding head to its dedicated power supply unit. Ensure the power supply is off before making connections.
2. Fiber Optic Cable: Connect the QBH fiber interface of the welding head to your compatible laser source. Handle fiber optic cables with care to avoid damage.
3. Wire Feeder: Attach the double wire feed system to the welding head. Ensure the wire spools are correctly loaded and the wire feeds smoothly through the guides.
4. Control System: Connect the welding head to the main control system for parameter adjustment and operation.
5. Grounding: Verify that the entire system, including the workpiece, is properly grounded.

5. Operating Instructions

Follow these steps for safe and effective operation of the Relfar FWH30-DS10E Handheld Laser Welding Head.

1. Pre-Operation Check: Before powering on, ensure all safety precautions are in place, including wearing appropriate PPE and verifying proper ventilation.
2. Power On: Turn on the main power supply to the laser source and the welding head control system.
3. Parameter Settings: Using the control system interface, set the desired welding parameters, including laser power, pulse duration, frequency, and the adjustable spot range (0-5mm).
4. Wire Feed Adjustment: Adjust the wire feed speed according to the material and welding requirements. The double wire feed system ensures consistent material delivery.
5. Welding Process: Position the welding head over the workpiece. Activate the laser and begin the welding process, maintaining a steady hand and consistent travel speed. The intelligent dual swing feature assists in achieving optimal weld quality.
6. Post-Welding: After completing the weld, deactivate the laser and turn off the power supply. Allow the equipment to cool down before storage or further maintenance.

6. Maintenance

Regular maintenance is crucial for the longevity and optimal performance of your welding head. Pay particular attention to the optical components.

6.1. Lens Replacement

The welding head's optical components, including the collimating lens, focusing lens, and protective lens, may require periodic cleaning or replacement due to wear or contamination. Refer to the diagram below for guidance.

• Protective Lens: This is the outermost lens and is most susceptible to spatter. Regularly inspect for damage or contamination. To replace, carefully unscrew the gland, remove the old protective glass (D20*2), and insert a new one.
• Collimating Lens: Located deeper within the head. Replacement typically involves removing the cap pressing, M2.5 internal hexagon screw, and the collimating drawer module. Ensure proper orientation during reassembly.
• Focusing Lens: Similar to the collimating lens, access requires removing the cap pressing and the focus drawer module. Handle with extreme care to avoid scratching the optical surfaces.

Always use clean, lint-free wipes and appropriate optical cleaning solutions when cleaning lenses. Avoid touching optical surfaces with bare hands.

6.2. General Cleaning

Keep the exterior of the welding head and all connections clean and free from dust and debris. Use a soft, dry cloth for cleaning. Do not use abrasive cleaners or solvents.

7. Troubleshooting

This section provides general guidance for common issues. For complex problems, contact technical support.

• No Laser Output:
  • Check if the laser source is powered on and functioning correctly.
  • Verify all fiber optic cable connections are secure and undamaged.
  • Ensure safety interlocks are not engaged.
• Inconsistent Wire Feed:
  • Check wire spool for tangles or empty spool.
  • Inspect wire feed rollers for wear or debris.
  • Ensure correct wire tension.
• Poor Weld Quality:
  • Review welding parameters (power, speed, spot size).
  • Inspect lenses for contamination or damage (refer to Section 6.1).
  • Ensure proper gas shielding (if applicable to your setup).
• System Error Messages:
  • Refer to the control system's specific error code manual for detailed explanations and solutions.
  • Ensure all control signal connections are firm.

8. Specifications

The following specifications apply to the DMK Relfar FWH30-DS10E Handheld Laser Welding Head:

9. Warranty and Support

For warranty information, technical support, or service inquiries regarding your DMK Relfar FWH30-DS10E Handheld Laser Welding Head, please contact your authorized DMK dealer or the manufacturer directly. Keep your purchase receipt and product serial number readily available when contacting support.

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