Understanding Galvo Laser Welding Machines: Precision and Efficiency Combined

If you're evaluating welding solutions for small, complex metal parts, a galvo laser welding machine offers a reliable way to improve both quality and throughput. Unlike traditional robotic or fixed-optic systems, it uses a dynamic scanning approach that’s ideal for high-precision applications.

How It Works

A galvo laser welding machine directs the laser beam through two high-speed mirrors mounted on galvanometer motors. These mirrors pivot rapidly to position the beam across the work area without moving the part or the laser head. This scanning method enables extremely fast transitions between weld points, making it well-suited for high-density spot welding or intricate seam welding patterns.

Laser Source Options

These systems typically integrate with pulse, quasi-continuous wave (QCW), or nanosecond fiber lasers, usually in the 100W to 300W range. Pulse lasers allow fine control over heat input, which is critical when welding thin materials or heat-sensitive components. This results in minimal thermal distortion and reduced post-processing.

Precision and Process Control

Equipped with advanced laser control software, the system allows precise programming of weld parameters such as power, pulse duration, frequency, and scan speed. Many models support position correction and distortion compensation, ensuring consistent beam placement across the entire work field, typically up to 300x300 mm.

Applications and Benefits

Common uses include battery tab welding, sensor housings, medical devices, and electronic enclosures. Because the process generates little heat-affected zone (HAZ), parts maintain structural integrity and appearance.

When integrated with automation and vision alignment, a galvo laser welding machine becomes a scalable solution for high-mix or high-volume production environments. Systems like those from Haiwei Laser integrate precision scanning with reliable service support, helping maintain consistent weld quality and lower operational costs over time. It’s not just about speed—it’s about repeatable, traceable results.