Abstract: A forming tool and a method of operating thereof for producing a hollow component by sheet-metal forming is disclosed having an upper tool and a lower tool, a mandrel that is driven into the hollow component to be formed and an auxiliary mandrel that is repositionable relative to the mandrel are positioned on the upper tool. The mandrel and the auxiliary mandrel are coupled to the upper tool by one spring-elastic actuation element in such a manner that the mandrel, when the upper tool is being lowered, is driven into the hollow component to be formed and comes to bear therein. A further lowering of the upper tool causes a compression of the coupling element, and the auxiliary mandrel carrying out a movement relative to the mandrel and being driven further into the hollow component.

Abstract: A forming tool and a method of operating thereof for producing a hollow component by sheet-metal forming is disclosed having an upper tool and a lower tool, a mandrel that is driven into the hollow component to be formed and an auxiliary mandrel that is repositionable relative to the mandrel are positioned on the upper tool. The mandrel and the auxiliary mandrel are coupled to the upper tool by one spring-elastic actuation element in such a manner that the mandrel, when the upper tool is being lowered, is driven into the hollow component to be formed and comes to bear therein. A further lowering of the upper tool causes a compression of the coupling element, and the auxiliary mandrel carrying out a movement relative to the mandrel and being driven further into the hollow component.

Abstract: A transverse control arm for installation in a motor vehicle is being configured as a single-piece malleable structure of uniform material and includes two bearing mounts for receiving elastic bearings and an arcuate center portion which extends between the bearing mounts and has a hollow cross section. The center portion includes in cross section a web and side panels respectively extending from the web in spaced-apart confronting relationship, in particular in parallel relationship.

Abstract: A transverse control arm for installation in a motor vehicle is being configured as a single-piece malleable structure of uniform material and includes two bearing mounts for receiving elastic bearings and an arcuate center portion which extends between the bearing mounts and has a hollow cross section. The center portion includes in cross section a web and side panels respectively extending from the web in spaced-apart confronting relationship, in particular in parallel relationship.