Welding Process of Galvanometer Laser Welding Machines

Galvanometer laser welding machines are increasingly used in precision manufacturing, especially in applications requiring high speed, flexibility, and minimal thermal distortion. Unlike traditional robotic or gantry-based systems, these machines use galvanometric mirrors to precisely steer the laser beam across the workpiece, enabling fast, non-contact welding without moving the entire head or part.

How the Process Works

A galvanometer laser welding machine directs the laser beam through two high-speed, motor-driven mirrors that pivot on X and Y axes. This optical system allows the focused spot to trace complex welding paths—such as curves, seams, or geometric patterns—within a defined field. With no need to reposition the workpiece or welding head, welding speeds can reach several meters per minute, significantly outperforming conventional mechanical motion systems.

The process is best suited for thin materials, typically ranging from 0.1 mm to 2.0 mm in thickness, including stainless steel, aluminum, and copper. Common applications include hermetic sealing of battery enclosures, joining sensor housings, and welding delicate components in electronics.

Key Process Parameters

Critical factors for consistent results include:

Scan speed

Laser power (continuous or pulsed)

Focus position and beam spot size

Overlap rate in contour welding

Using wobble or oscillation patterns enhances gap tolerance and reduces porosity, particularly in lap joints. Optional features like real-time seam tracking and dynamic focus control further improve weld quality and process reliability.

Applications and Advantages

These systems are widely adopted in electric vehicles, medical devices, and consumer electronics. The non-contact nature reduces mechanical wear, lowers maintenance needs, and enables rapid product changeover through software programming.

What Buyers Should Know

When selecting a galvanometer laser welding machine, consider:

Available scan field size (e.g., 300×300 mm, 400×400 mm)

Wobble capability and pattern options

Compatibility with automation and production line integration

User-friendliness of path programming software

Haiwei Laser offers galvanometer laser welding machines designed for high-precision, high-efficiency applications, with technical support for process optimization and seamless integration into industrial production environments.