Rotor shafts are core components of electric motors for electric vehicles. They transfer the mechanical energy generated by the electromagnetic interaction between the rotor and stator to the drive shaft, which enables the vehicle to move
The production of such components requires a combination of the highest precision, material strength (one-piece solutions) and flexibility or combination possibilities in the manufacturing processes (GFU process “high-speed end-forming” + GFU process “Upsetting”) to meet the growing demands of the electric vehicle market.
GFU – Maschinenbau GmbH is a leading supplier of state-of-the-art, chipless forming machines. These machines make it possible to produce rotor shafts for electric vehicles with high precision, repeatability and efficiency. Our forming solutions offer the following advantages:
Upsetting is a highly efficient forming process for partial axial upsetting of material in component-critical areas (e.g. gearing areas, etc.)
This process is perfect for the production of rotor shafts because it achieves high precision in shaping and the possibility of massive compression of material in sub-areas.
The TFM 150 e-line is one of our most advanced, electrically driven upsetting machines, characterized by energy efficiency, repeat accuracy and easy integration into existing production lines. This system enables the production of particularly robust rotor shafts with the lowest possible weight and with the desired material upsetting in critical areas of the rotor shaft.
Flow-rolling is a process for the precise and fast forming of stepped rotor shafts (diameter jumps, step jumps), in which the workpiece and the forming calotte also rotate. The process even enables a material flow of 90° in the transition area with simultaneous significant material thickening in the transition area.
Combined with the homogenous fiber flow this significantly improves the mechanical properties of the shafts compared to other manufacturing processes available on the market.
Our RM 100 + TFM 100 e-line flow-rolling machines offer the perfect combination of precision, forming speed, energy efficiency and component design for rotor shaft production. These machines enable to shape particularly complex geometries, which has a positive effect on the efficiency of the electric motors.
Our machines are tailored to the specific requirements of rotor shaft production and can be supplemented by customer-specific adaptations. Here are some key features:
Conclusion:
With GFU – Maschinenbau GmbH, you not only get high-quality machines for rotor shaft production, but also tailor-made solutions that promote efficiency, sustainability and precision in electromobility.
