Laser soldering

Laser soldering enables substance-to-substance bonds. The laser can be focused with high accuracy. This means that even the smallest soldered joints and sensitive electronic components can be connected. The technology is also frequently used in the automotive industry or in the electronics sector.

What is the technology behind the laser soldering?

Laser soldering is a non-contact process: the laser beam heats up the solder. This is then introduced to the process as a filler wire, which usually consists of copper or zinc alloys. The solder then melts and fills the joint gap. The melt fuses the two components.

The two processes of laser soldering technology:

Hard soldering using a laser at melting temperatures above 450 °C:
This joining technique uses diode lasers with higher power and is used primarily in the automotive industry.
Soft-soldering using a laser at melting temperatures below 450 °C:
This technique is commonly used in the manufacture of electronic components.

Automated laser soldering

As a KUKA customer, you have two options:

Automated and scalable production systems
Individually configured manufacturing cells

Parameters such as path velocity, laser power or optimum wire feed are second nature to us, and we offer various technology packages for different production scenarios.

What advantages does KUKA laser soldering offer?

Top performance
- High process speed
- Minimum heat input
- Temperature control of the soldered joint
- Low component distortion
Diversity
- Soldering of sensitive and dissimilar components
- Wide range of robots for applications in different industries and sectors
- Robotic (cell) solutions with system partners
Know-how & service
- Years of process expertise
- Own gripper for soldering of the roof seam
- Custom-tailored process solutions
Quality
- Paintable seams, without reprocessing work
- Fewer restrictions due to zinc coating
- Possibility of seal welds
- Harmonious component transitions at visible seams
- Gap compatibility
- No structural change
- High strength of the workpieces

KR QUANTEC

With a payload of 120 to 240 kg, the versatile robot automates your laser soldering process.

E-book: Welding aluminium? No problem!

Aluminium and aluminium alloys play an important role in e-mobility because of the ideal combination of lightness and strength. In welding and joining processes, aluminium has high demands on the processes used. With comprehensive process know-how and the right products, we make you fit for the technological transformation towards e-mobility. The example of the battery box shows how robots enable the production of aluminium components at the highest quality level;

Read what is important for aluminium welding in electromobility.

Download e-book

Software to automate your soldering tasks

With our modular software solutions, you can carry out intelligent robot-based soldering processes using lasers and thus increase your production. The aim is to reliably monitor all parameters through ideal communication between the soldering equipment and the robot controller.