from the conferences organized by TANGER Ltd. provisional website
In this paper, the forming process of the bearing housing element of a fan engine is investigated. Because the bearing housing is subjected to corrosion and a heat-resistant environment, this part is made of AMS5604 stainless steel. Due to the specific mechanical properties of the AMS5604 alloy, that is, a high ratio of yield stress to ultimate tensile strength, the forming process must be realized under special conditions. To achieve a suitable shape and dimensional accuracy of the final part, the forming process is divided into two stages. Firstly, a rubber-pad forming process is applied. Next, the part heated to the temperature of 830 ºC is calibrated in a grease-lubricated stamping die. The distribution of the drawpiece shape error is obtained by the system GOM ATOS Core. The results of SEM metallographic evaluation and analysis of the chemical composition by using energy dispersive X-ray spectrometry are also presented.Keywords: AMS5604; fan engine; rubber-pad forming; springback; stainless steel; warm forming
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