Method for producing a gear rack, and a stamping device for carrying out the method
AssigneeZF Lenksysteme GmbH
InventorAlfred Brenner
Life of this patent
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AssigneeZF Lenksysteme GmbH
InventorAlfred Brenner
Estimating the term…
A method for producing a blank for a gear rack for rack-and-pinion steering of motor vehicles includes the following steps: In a first step, a starting material having an essentially circular cross-section is placed into a stamping apparatus containing at least three form tools movable relatively to one another. In a second step, at least one force in at least one direction is exerted upon at least one of the form tools, the form tools moving relative to one another by this force, so that the starting material is reformed into a blank for the gear rack. At least in the axial region of the tooth system of the gear rack to be formed, the blank is provided with a shape differing from a circular cylinder. Using this method, part of the material of the starting material is displaced on one side from the middle into the region of the tooth system to be formed, without having much strain-hardening occur in this region. This makes subsequent production processes easier.
A stamping apparatus for producing a blank for a gear rack for a rack-and-pinion steering system of a motor vehicle, comprising:
A stamping apparatus for producing a blank for a gear rack for a rack-and-pinion steering system of a motor vehicle, comprising:
Dependencies are inferred from the claim text.