Patent ID: 9144844
Filing Date: 2015-09-29
Classification: B22F,B23F,B23P,C22C,F01L,F16D,F16H

Abstract:
1. A method for powder-metallurgically manufacturing a rotational body, the method comprising: a) compacting a first starting body from metal powder; b) forming a second starting body from metal, separately from the first starting body; c) placing the starting bodies against each other in axial contact via end faces in relation to a longitudinal axis of the rotational body; and d) permanently and firmly sintering the first starting body and the second starting body to each other by collective sintering, e) wherein the first starting body is compacted from an aluminium-based powder and the second starting body is formed from an aluminium material, f) and the starting bodies are sintered to each other at their respective end faces, g) wherein the first starting body is sintered as such during the collective sintering, and h) one of the starting bodies is placed onto the other for the collective sintering and presses against the other of the starting bodies with its own weight only, during sintering.