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Applications of Galvo Scanning System in Laser Soldering

In the ever-evolving landscape of laser technology, the galvo scanning system emerges as a cornerstone, revolutionizing precision and speed in applications like laser soldering. Delving into the intricacies of this innovative system, we unravel its significance and transformative impact on the field.

Galvo Scanning Systems Unveiled: A Paradigm Shift in Laser Technology

The galvo scanning system, also known as a laser scanner, has witnessed widespread application in China since 1998. Its design philosophy, akin to the principles behind an ammeter, leverages the concept of using lenses as an extension of the hand. Controlled by computer-driven -5V-5V or -10V-10V DC signals in lieu of probe signals, this system executes predetermined actions with precision.

The control system, resembling the rotating mirror scanning system, employs a pair of folding mirrors, with stepper motors replaced by servo motors. The integration of position sensors and the design principles of feedback loops further ensure the system's accuracy, propelling both scanning speed and repetitive positioning precision to unprecedented levels.

A laser galvo, or laser scanner, comprises five integral components: a position sensor, error amplifier, power amplifier, position discriminator, and a current integrator. The fundamental principle revolves around the input of position signals, prompting a swinging motor to oscillate a defined angle based on the voltage-to-angle conversion ratio. The entire process operates within a closed-loop feedback control system, ensuring optimal precision.

Galvo Scanning Systems in Laser Soldering

The application of galvo scanning system in laser soldering introduces a paradigm shift in how we perceive speed and accuracy in manufacturing processes. The operational principle mirrors that of laser marking, employing two galvo mirrors for angular deflection along the X and Y axes. The laser beam, directed through a beam expander lens, reflects onto the processing surface.

The range of laser reflection on the processing surface corresponds to the scanning range of the galvo mirrors. This feature effectively heats the laser spot within the welding point range, independent of a two-dimensional moving platform typically required for different welding points.

The remarkable swiftness of galvo mirrors' deflection translates to rapid movement of the laser spot between soldering points, far surpassing the conventional speed of two-dimensional motion axes. Leveraging this high-speed laser spot movement, especially when pre-coated with solder paste, significantly enhances soldering speed. The agility and precision of the galvo scanning system become a driving force behind the efficiency and throughput of laser soldering processes.

In conclusion, the galvo scanning system emerges as a transformative force, particularly in the realm of laser soldering. Its versatility, swift precision, and ability to redefine conventional speed norms position it as a game-changer in manufacturing processes. As we witness the galvo's seamless integration into various applications, it becomes evident that this system is not just a technological advancement; it's a beacon guiding the way to a future where precision and efficiency seamlessly

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