Ultra deep friction drawing of 20%, Tool tool has been extended

You can find it in many household goods, construction technology, and countless lines of piprauls and hydraulic: small, drawing segments made by the deep drawing processes. The material is under the shape period. Potential results do not want thinning, surface damage, or cracks.

The solution is ultrasonic vibrations – it will reduce friction importance within the material and to contact tools. In the process of Vibrrodra, Fraunhofer Iwu, in collaboration Mark Metallwaretenfabrik GmbH, successfully related to the dismissal rates of disabling the dismissal rates of the dismissal of about 500 strokes per minute.

Ultrasound may reduce the destruction of deep drawing and thus protecting tools and materials. The energy-saving potential comes from the lower force is a matter of manufacturers of pipes and fittings (connection materials) also want to use. However this is the team only led by M.Sc. Martin Mädlow has been controlled by the usual sudden stress in industrial formation processes. Previously, effective use of ultrasound is only possible in almost static laboratory setups.

At least 20% of less friction

For vibrating, active parts of the tool such as punching and die, further the blank metal holder in the desired position during formation, all possible. Researchers choose to die, because it has the largest part of relative activity during formation. “Dying offers the most potential. We have already achieved 20% reduction in friction, but we still see more potential,” promoted Mädlow.

Regulated in the process passpiece, formation usually occurs in many stages. Thanks for less friction, it is possible to draw more than one stage without harming the material. For example, both measures of forming are sufficient rather than three concrete. Reduced friction also means less hot input, allowing for higher stroke frequencies, and longer lives of coconuts.

Fraunhofer IWU is the advance of its activities to move this technology to the industry quickly. Today, the focus of ultrasonic deep drawing of cell houses used by high-voltage batteries for electric vehicles. Purpose is the most greater cell formats that can make the best use of space and give higher covers thanks to the rise Energy energy. the Application to patent For vibrodraw (EPA WO2025 / 012830 A1) already filed.

Provided by the Fraunhofer Institute for machine technology and re-changing IWU technology