For centuries, outstanding craftsman have approached perfection step by step. But today we have even better processes, even more know-how and, most importantly, a wealth of experience — all combining to take our expertise to new heights. Welcome to flowforming, a production process that opens up a whole new range of possibilities for your components.
STRONGER, THINNER, MORE ECONOMICAL
We use flowforming to produce a broad range of rotationally symmetrical parts — with considerably greater strength, even for components with complex geometries and very thin walls. And all this without the waste that conventional machining processes produce.
We shape your components by applying pressure: Rotating and pressing tools are applied to the workpiece, which is also rotating. Metal spinning and flowforming are types of mechanical working. Metal spinning (DIN 8584) uses compressive and tensile forces, while flowforming (DIN 8583) achieves plastic deformation solely through the application of compressive force. The shape and dimensional accuracy of our processes is extremely high — resulting in a substantial reduction in the time required for finishing. And because plastic deformation is a chipless process, we make the most of your material.
HOW COLD DO WE WORK?
The plasticity of a metal material results from its internal structure. Our flowforming process uses the cold forming principle. In other words, the workpiece is not shaped at high temperature, but solely through the application of high compressive force.
As cold working takes place below the metal’s recrystallization temperature, plastic deformation occurs due to microscopic slippage and the accumulation of defects leads to stabilization, so that the metal becomes more resistant to further deformation. The process also increases tensile strength and hardness, but reduces ductility.
THE COOL APPROACH!
The surface of a cold-formed workpiece is significantly harder than that of a hot-formed, recrystallized counterpart made of identical material. Any type of cold forming reduces ductility, meaning that — under identical load — the cold-formed part will deform less than its starting material. So it’s harder and stronger. Cool!