Laser Welding
Published On: July 28, 2026
In recent years, laser welding equipment has gradually replaced traditional welding equipment in the hardware, automotive manufacturing, electronics, medical equipment, new energy battery, and aerospace industries, occupying market share.
Automotive Industry
As the automotive industry moves towards lighter structures, materials such as aluminum and magnesium alloys are becoming candidates to replace galvanized steel. Since the body-in-white (BIW) accounts for about 27% of vehicle weight, using these lightweight materials can reduce the vehicle's overall weight. However, traditional resistance spot welding has many problems with these materials: long welding time, high electrode maintenance costs, and zinc coating adhesion to electronic products. Laser welding can overcome some of these issues. Besides BIW, laser welding is also used for engine parts, transmission parts, alternators, solenoids, fuel injectors, fuel filters, and fuel cells.
Hardware Industry
With the advent of laser welding, the advantages of laser welding for thinner materials have become increasingly apparent. It allows for precise control of welding heat and spot size as needed. Fiber laser welding machines use energy fibers to transmit laser generated by solid-state lasers through coupling technology to the workpiece surface for welding. Due to the small heat-affected zone, laser welding does not deform thin materials (0.1-2.0 mm), ensuring uniform and consistent weld spots, reducing the need for polishing, and significantly lowering the defective product rate.
Bathroom Industry
Modern stainless steel bathroom manufacturing demands high quality in welding strength and appearance, especially for high-value-added components with stringent welding quality requirements. These can be completed with minimal or no subsequent processing. Traditional welding methods, due to significant heat input, inevitably cause workpiece distortion and deformation. To address this, extensive post-processing is required, increasing costs. Laser welding, with its fast speed and high depth-to-width ratio, can greatly improve welding efficiency and stability.
Lithium Battery Manufacturing Industry
The power driving new energy vehicles comes from hundreds of lithium battery cells. In the manufacturing process of lithium batteries or battery packs, more than 20 processes require welding to achieve conductive connections or sealing. The quality of welding is crucial for the safety performance of the entire vehicle.
Laser welding, a significant non-contact welding method, uses a high-energy laser beam focused on the product surface or inside to achieve atomic bonding between two separate products. Compared to traditional argon arc welding, resistance welding, and ultrasonic welding, laser welding has notable advantages: small heat-affected zone, non-contact processing, and high processing efficiency.
Laser welding, a significant non-contact welding method, uses a high-energy laser beam focused on the product surface or inside to achieve atomic bonding between two separate products. Compared to traditional argon arc welding, resistance welding, and ultrasonic welding, laser welding has notable advantages: small heat-affected zone, non-contact processing, and high processing efficiency.
Handicrafts Industry
Laser welding machines are widely used in the handicrafts and jewelry industry, especially for precise necklaces and other jewelry. Like laser marking machines, their application in the jewelry industry is continuously developing and deepening. Laser welding instantly melts and fuses handicrafts and jewelry. The principle is that under laser action, the metal surface undergoes a series of changes, heating and quickly conducting heat to the depth. At a certain laser power density, the surface melts, and at higher power densities, it vaporizes instantly, forming a melt pool. During welding, the relative movement of the workpiece and laser causes the molten metal to accelerate along a certain angle, rapidly cooling and forming a weld seam.
