ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Aircraft engine components are assemblies of several parts that are manufactured usingvarious processes: deep drawing and machining, among others. Deep drawing cannot controlaccurately wall thicknesses and is performed in numerous steps. Machining parts from solids is lessand less cost effective as prices for raw materials increase. Hence, the use of near net shapemanufacturing methods is becoming more appealing. An alternative forming process is hereinvestigated: flowforming, process well adapted to axisymmetric parts. The amount of formingsteps, welding and machining could be significantly reduced, reducing lead-times andmanufacturing costs. Examples are presented for the forming of selected parts (gas generator cases,fan cases and diverter ducts), together with their metallurgical and mechanical properties.Flowforming, however, can only generate shells with some hollow details: most flanges, bosses,stiffeners or weld lips cannot be obtained. Hence, methods of adding material are explored
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/54/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.344.443.pdf
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