In order to reduce weight, hollow shafts are increasingly being used in drive train systems. So far, such shafts could only be splined with the conventional cross rolling process up to a certain minimum wall thickness. In case of extremely thin-walled workpieces, more cost-intensive spline manufacturing processes had to be planned. With our newly developed reverse rolling process, the forming process itself takes a bit longer. But it´s possible to form splines on hollow shafts with wall thicknesses of up to less than 3 mm.
In the case of partial hollow shafts, processes can also be combined appropriately in order to achieve the most ecconomic cost-effectiveness.