Zf Friedrichshafen Ag

Helmut Boehm

Christian Ruhl

Martin Brehmer

A method for producing a cylindrical hollow body () made of aluminum, an aluminum alloy, or a light metal alloy, includes casting a hollow body () such that the hollow body () has an inner and an outer lateral surface () and two axial end faces. The method also includes, during the casting process, making at least one defined notch (') into one or more of the inner lateral surface (), the outer lateral surface (), and the two axial end faces.

Method for producing a cylindrical hollow body made of aluminum or of an aluminum alloy or of a light metal alloy, cylindrical hollow body, and vehicle transmission

A method for producing and processing a cylindrical hollow body () made of aluminum or an aluminum alloy and for arranging cylindrical hollow body () in a motor vehicle transmission includes producing the hollow body () by a casting process () in such a way that the hollow body () has an inner and an outer lateral surface () and has internal toothing () on the inner lateral surface (), and centrally clamping the hollow body () for processing. The hollow body () is arranged in the vehicle transmission exclusively via tooth flanks of the internal toothing () (). The hollow body () is clamped centrally () exclusively on a partial region () of the inner lateral surface (), away from the internal toothing ().

Method for producing and processing a cylindrical hollow body made of aluminum or an aluminum alloy and for arranging it in a motor vehicle transmission, cylindrical hollow body and vehicle transmission

The relates to a method for producing and machining a cylindrical hollow body constructed of aluminium or an aluminium alloy and for arranging said hollow body in a motor vehicle transmission. The hollow body is produced by a casting process such that the hollow body has an inner and an outer lateral surface and has teeth in at least one sub-region of the inner lateral surface. For machining, the hollow body is centrally clamped. The hollow body is arranged in the vehicle transmission by tooth flanks of the internal teeth. In the disclosed method according to the disclosure, the hollow body is centrally clamped at a tip diameter of the internal teeth. The disclosure further relates to a corresponding cylindrical hollow body and to a corresponding vehicle transmission.

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St. Ingbert, Germany

Helmut Boehm