Benteler-automobiltechnik Gmbh

Sgl Carbon Ag

Benteler Sgl Gmbh & Co. Kg.

Sigri Great Lakes Carbon Gmbh

Bernd Wohletz

Johannes Böke

Wilfried Rostek

Christian Howe

Ulrich Müller

Ulrich Mueller

Andreas Steinle

Ralph Wojtczyk

Hinrich Habenicht

Tobias Aubele

Hannah Paulus

The present invention relates to a method and an assembly for manufacturing a leaf spring from a fiber-composite material. To this end, tape material from a fiber material, which has been pre-impregnated with a matrix resin, for manufacturing a semi-finished leaf spring is wound under tension onto a winding core, wherein at least two cavities for shaping are configured on the winding core. The tape material here is pressed on by way of a contact pressure means, such that adjacent layers of the fiber material are adhesively interconnected and air pockets are removed. The semi-finished leaf spring under impingement by pressure and heat and under curing of the matrix resin is finally processed to form a leaf spring.

Method and assembly for manufacturing a leaf spring

In a method of making a body part or chassis part of a motor vehicle, several pre-impregnated fiber materials (prepregs) are stacked on top o one another, with an outermost prepreg intended for attachment to a metallic base body being provided with an adhesive. The stacked prepregs are then shaped into a three-dimensional preform which is then compressed with the base body in a press tool for bonding the preform with the base body and allowing the adhesive to cure, thereby producing a joined structure which is allowed to cure.

Method of making a body part or chassis part of a motor vehicle

A cylinder or roller for paper, plastic or material webs is formed of a plastic material reinforced with fibers and is used for the purpose of transporting, deflecting or web guiding. Instead of a layer covering the casing and being applied with an electrolytic method or by a thermal spraying method, an abrasion-resistant layer of a synthetic resin and a filler of a powder of abrasion-resistant material is used.

Fiber-reinforced plastic cylinder with an outer wear-resistant layer of

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Meitingen, Germany

Bernd Wohletz