Fiber laser welding is a high-precision, high-efficiency welding technology that, combined with robotic technology, can realize an automated laser welding process.
Fiber laser welding overview:
Working principle: Fiber laser welding uses a laser light source to deliver the laser beam to the welding point through an optical fiber to achieve concentrated heating with high energy density to complete the welding process.
Advantages: High precision, high efficiency, non-contact, suitable for various materials, etc.
The role of robots in fiber laser welding:
Automated control: Robots can be used to control the laser welding process to achieve a high degree of automation and precise control.
Trajectory planning: The robot system can plan the laser welding path to ensure welding quality and speed.
Flexibility: The robot can flexibly adjust the welding posture to adapt to workpieces of different shapes and sizes.
Application areas:
Automobile manufacturing: Robotic fiber laser welding is widely used in automobile manufacturing, such as body welding.
Electronics Manufacturing: Fine soldering of small electronic components.
Aerospace: Welding of lightweight materials such as aluminum alloys.
Process parameters and equipment selection:
Fiber Laser Source: Select a fiber laser source with the appropriate power and wavelength to meet your specific welding needs.
Welding speed and power: Adjust welding speed and power to achieve the best welding results.
Quality control and monitoring:
Vision system: Use machine vision system to monitor the quality of welds and detect and correct welding defects in time.
Sensors: Use devices such as temperature sensors to monitor temperature changes during the welding process.
Security considerations:
Protective facilities: Set up appropriate safety equipment, such as gratings, laser protective glasses, etc., to ensure the safety of operators.
Robot Safety: Take steps to ensure that the robot is safe for people and the surrounding environment during operation.
Future trends:
Intelligent: Robot systems will become more intelligent, improving welding efficiency and quality through learning and adaptive technology.
Multi-process integration: The robot system will integrate multiple welding processes to improve its ability to cope with different workpieces and needs.
Alejandro Ringler
How to use fiber laser welding
Fiber laser welding is an efficient and high-precision welding technology. Its use usually involves multiple steps such as equipment preparation, parameter setting, workpiece fixation and welding operation.
- Equipment preparation:
Check the equipment status: Make sure the fiber laser welding equipment is in normal working condition, including fiber laser source, welding head, cooling system, etc.
Clean the work area: Clean the welding work area to ensure that no debris interferes with the welding process.
- Parameter settings:
Select appropriate laser parameters: Set appropriate laser power, wavelength, pulse frequency and other parameters according to the type, material and thickness of the welded workpiece.
Welding speed adjustment: According to the welding process requirements and the nature of the workpiece, the welding speed is adjusted to control the penetration depth and weld quality.
- Workpiece fixation:
Fixture design: Design the fixture according to the shape and size of the workpiece to ensure stable fixation of the workpiece during the welding process.
Align the workpiece: Ensure accurate positioning of the workpiece during welding to avoid shifting or twisting.
- Welding operations:
Laser head positioning: Accurately position the laser head at the starting point of the welding to ensure the correct position of the welding seam.
Start laser: Start the laser source to start the welding process.
Monitor the welding process: Use vision systems and sensors to monitor the welding process to detect and correct welding defects in time.
- Quality inspection and repair:
Quality inspection: After completing the welding, conduct a quality inspection on the weld, including weld shape, penetration depth, weld density, etc.
Trimming and repair welding: According to the inspection results, trim or repair weld the defective parts to ensure that the welding quality meets the requirements.
- Safety precautions:
Laser protection: Operators need to wear appropriate laser protective equipment to prevent damage to human eyes from laser radiation.
Ventilation and exhaust gas treatment: During the welding process, ensure good ventilation and handle the exhaust gas generated by welding.
Using fiber laser welding technology requires certain professional knowledge and experience. Operators need to be familiar with the operating interface of the equipment, understand the adjustment principles of welding process parameters, and follow safe operating procedures during operation. During initial use, it is recommended to obtain guidance and training in a laboratory or professional training institution.