Spot Welding of Aluminium within Automotive Applications

Sheets made of aluminum can also be joined to one another using resistance spot welding. Challenging is the higher electrical conductivity. The thermal conductivity also differs from steel. This requires a fundamental increase in the electrical current. When spot welding aluminum, deviating conditions, such as shunt effects or varying surfaces, can lead to irregular results. Also the aluminum oxide will have an impact on the resulting weld outcome. Due to the material properties of aluminium, we can summarize the following challenges:

Challenge: Solution:
- Low electrical resistance High currents
- High thermal conductivity Short process times
- Oxidizing surfaces Variable start conditions
- Mandatory clean electrodes Regular electrode cap cleaning

- Low electrical resistance:
High currents
- High thermal conductivity:
Short process times
- Oxidizing surfaces:
Variable start conditions
- Mandatory clean electrodes:
Regular electrode cap cleaning

With the AluSPATZ+ complete system, MATUSCHEK offers a future-proof customer-specific complete solution. This means that the reliable resistance welding process of aluminium will no longer be a problem in the future when implementing your projects. Constant reproducible results can be achieved with the AluSPATZ+ complete system , both for joining of structural components, extruded profiles and 3-sheet connections, and for series production. Even different aluminum alloys can be handled applying our control technique

Spot Welding Inverter for Aluminium
ServoSPATZ+ Combined Weld Timer
alugator x-gun
AluGATOR Servo Gun
CapClean 3D-Reformation

It consists of the following components:

Advantages of the AluSPATZ+ complete system

Examples / Samples for Aluminium RSW

Examples / Samples for Aluminium RSW

Further benefits of spot welding

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Here you will find further product solutions of the AluSPATZ+ series.

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We would be happy to advise you on the selection of suitable solutions for your individual welding tasks and inform you about our training portfolio.