from the conferences organized by TANGER Ltd. provisional website
In this article, the results of modifications of the forming process of the bearing housing of a turbine engine are presented. The bearing housing is one of the critical structural elements of a turbine engine and is made of AMS 5504 stainless steel. Due to the nature of the element operation, the permissible shape error of housing profile is 0.508 mm. The proposed modification of the element forming process consists of welding two coupled parts into one and the calibration of the profile. This process is replaced by two steps expanding the cone-shaped drawpiece with the use of the rubber pad forming process in a SAAB hydro-mechanical press. Eliminating one weld allows us to reduce the manufacturing costs of parts and also to improve the strength of the part. To optimise the expanding process of the cone-shaped drawpiece, the finite-element-based IMPETUS Afea system was used. Measurements of shape errors of the drawpiece were carried out using the GOM ATOS Core instrument, which is optimised for the 3D measurement of small- to medium-sized components.Keywords: Finite element method, rubber-pad forming, stainless steel, turbine engine
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