Back to results
US 9,038,270 B2Granted
Method for the production of a tubular body, and control arm produced by this method
AssigneeBenteler Automobiltechnik GmbH
InventorRagnar Holthe
Life of this patent
Estimating the term…
Abstract
In a method of making a tubular body, material is pressed through a die of a forming tool into a first mold cavity disposed in downstream relationship to the die to produce a first end piece. A mandrel is then moved in a direction of the die to thereby displace the mold cavity in the same direction and to extrude a tubular center piece to adjoin the first end piece. The mandrel is then replaced by a mold having a second mold cavity to mold a second end piece to adjoin the center piece.
Claims12
A method of making a tubular body, comprising:
- pressing a material through a die of a forming tool into a first mold cavity disposed in downstream relationship to the die to produce a first end piece;
- moving a mandrel in a direction of the die to displace the mold cavity in the same direction and to thereby extrude a tubular center piece adjoining the first end piece;
- and
- replacing the mandrel by a mold having a second mold cavity to mold a second end piece adjoining the center piece.
1 more element
Dependencies are inferred from the claim text.