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Severe plastic deformation in impact extrusion processes

Presentation held at 50th ICFG Plenary Meeting of International Cold Forging Group, September 03-06, 2017, Shanghai, China
 
: Landgrebe, Dirk; Bergmann, Markus

:
presentation urn:nbn:de:0011-n-4878079 (3.9 MByte PDF)
MD5 Fingerprint: 5f3d25c4644eaa7d7417cbac95b3fb4a
Created on: 30.3.2018


2017, 24 Folien
International Cold Forging Group (ICFG Plenary Meeting) <50, 2017, Shanghai>
English
Presentation, Electronic Publication
Fraunhofer IWU ()
gradation extrusion; ultrafine-grained aluminum

Abstract
Gradation Extrusion, a process which combines common impact extrusion with severe plastic deformation is used to create property graded materials. The processed material exhibits an increased strength in the near-surface layers and a relatively ductile core with lower strength. The process is evaluated by subjecting aluminum material to the method. Investigation of the material after processing focusses on the microstructure and hardness examination. The advantages of the process principle with respect to applications are shown for aluminum bolts. Possible process chains for such components are illustrated and first results of forming experiments are demonstrated.

: http://publica.fraunhofer.de/documents/N-487807.html