TY - CHAP

T1 - Flow Behavior Investigation during Miniaturized Extrusion of Aluminum (AA6082) and Magnesium (AZ31)

AU - Nienaber, Maria

AU - Esterl, Fabian

AU - Lehmann, Jonas

AU - Bohlen, Jan

AU - Ben Khalifa, Noomane

PY - 2024

Y1 - 2024

N2 - A strong crystallographic texture is often formed during aluminum extrusion, with a distinct orientation of the basal planes. This microstructural evolution plays an important role in defining the extrudate mechanical properties like anisotropic behavior, which may be tolerable in some cases but undesirable in others. The presented work aims to determine the adjustable key elements that govern material flow during aluminum extrusion. The overall objective is to control extruded product texture development by controlling process parameters and die design. In this context, extrusion experiments are conducted using die designs of round and rectangular aluminum profiles with the variation of extrusion speed and initial temperature. Consequently, the billet rest and the extrudate are examined to characterize the nature and intensity of relations between the varied parameters and material flow. Parallel to the experiments, finite elements models of the experiment setups are created, validated, and further used to expand the experimental investigation.

AB - A strong crystallographic texture is often formed during aluminum extrusion, with a distinct orientation of the basal planes. This microstructural evolution plays an important role in defining the extrudate mechanical properties like anisotropic behavior, which may be tolerable in some cases but undesirable in others. The presented work aims to determine the adjustable key elements that govern material flow during aluminum extrusion. The overall objective is to control extruded product texture development by controlling process parameters and die design. In this context, extrusion experiments are conducted using die designs of round and rectangular aluminum profiles with the variation of extrusion speed and initial temperature. Consequently, the billet rest and the extrudate are examined to characterize the nature and intensity of relations between the varied parameters and material flow. Parallel to the experiments, finite elements models of the experiment setups are created, validated, and further used to expand the experimental investigation.

KW - Engineering

KW - Material Flow

KW - Microstructure Evolution

UR - https://aec.org/extrusion-die-rd

M3 - Article in conference proceedings

VL - 1

SP - 1

EP - 7

BT - Thirteenth International Aluminum Extrusion Technology Seminar (ET'24)

PB - Extrusion Technology for Aluminum Profiles Foundation

ER -