3D die shape optimisation for net-shape forging of aerofoil blades
Data(s) |
01/08/2009
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Resumo |
This paper reports on work in developing a finite element (FE) based die shape optimisation for net-shape forging of 3D aerofoil blades for aeroengine applications. Quantitative representations of aerofoil forging tolerances were established to provide a correlation between conventional dimensional and shape specifications in forging production and those quantified in FE simulation. A new direct compensation method was proposed, employing variable weighting factors to minimise the total forging tolerances in forging optimisation computations. A surface approximation using a B-spline surface was also developed to ensure improved die surface quality for die shape representation and design. For a Ni-alloy blade test case, substantial reduction in dimensional and shape tolerances was achieved using the developed die shape optimisation system. |
Identificador | |
Idioma(s) |
eng |
Direitos |
info:eu-repo/semantics/restrictedAccess |
Fonte |
Lu , B , Ou , H , Armstrong , C G & Rennie , A 2009 , ' 3D die shape optimisation for net-shape forging of aerofoil blades ' Materials & Design , vol 30 , no. 7 , pp. 2490-2500 . DOI: 10.1016/j.matdes.2008.10.007 |
Palavras-Chave | #/dk/atira/pure/subjectarea/asjc/2200/2210 #Mechanical Engineering #/dk/atira/pure/subjectarea/asjc/2200/2211 #Mechanics of Materials #/dk/atira/pure/subjectarea/asjc/2500 #Materials Science(all) |
Tipo |
article |