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Title: Influence Of Tool Geometry, Tool Coating And Process Parameters In Thixoextrusion Of Steel

Abstract

Thixoextrusion could become one possibility to enlarge the complexity of extruded profiles made of steel. Accordingly semi-solid extrusion experiments of X210CrW12 tool steel using round dies of approximately 15 mm diameter were performed in order to achieve first information concerning possible process windows and process limits. For liquid fractions between 38% and 10%, extrusion press velocities from 10 mm/s to 50 mm/s and dies with novel PVD-coatings no complete solidification during extrusion was achieved. However the collected pieces of the extruded bars showed a fine and evenly distributed globular microstructure.

Authors:
;  [1]; ;  [2]
  1. Institute of Metal Forming, RWTH Aachen University, Aachen (Germany)
  2. Surface Engineering Institute, RWTH Aachen University, Aachen (Germany)
Publication Date:
OSTI Identifier:
21056974
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 907; Journal Issue: 1; Conference: 10. ESAFORM conference on material forming, Zaragoza (Spain), 18-20 Apr 2007; Other Information: DOI: 10.1063/1.2729673; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COATINGS; EXTRUSION; LIQUIDS; MICROSTRUCTURE; PHYSICAL VAPOR DEPOSITION; PRESSES; SOLIDIFICATION; SOLIDS; STEELS; THIXOTROPY; TOOLS; VELOCITY

Citation Formats

Knauf, Frederik, Hirt, Gerhard, Immich, Philipp, and Bobzin, Kirsten. Influence Of Tool Geometry, Tool Coating And Process Parameters In Thixoextrusion Of Steel. United States: N. p., 2007. Web. doi:10.1063/1.2729673.
Knauf, Frederik, Hirt, Gerhard, Immich, Philipp, & Bobzin, Kirsten. Influence Of Tool Geometry, Tool Coating And Process Parameters In Thixoextrusion Of Steel. United States. doi:10.1063/1.2729673.
Knauf, Frederik, Hirt, Gerhard, Immich, Philipp, and Bobzin, Kirsten. Sat . "Influence Of Tool Geometry, Tool Coating And Process Parameters In Thixoextrusion Of Steel". United States. doi:10.1063/1.2729673.
@article{osti_21056974,
title = {Influence Of Tool Geometry, Tool Coating And Process Parameters In Thixoextrusion Of Steel},
author = {Knauf, Frederik and Hirt, Gerhard and Immich, Philipp and Bobzin, Kirsten},
abstractNote = {Thixoextrusion could become one possibility to enlarge the complexity of extruded profiles made of steel. Accordingly semi-solid extrusion experiments of X210CrW12 tool steel using round dies of approximately 15 mm diameter were performed in order to achieve first information concerning possible process windows and process limits. For liquid fractions between 38% and 10%, extrusion press velocities from 10 mm/s to 50 mm/s and dies with novel PVD-coatings no complete solidification during extrusion was achieved. However the collected pieces of the extruded bars showed a fine and evenly distributed globular microstructure.},
doi = {10.1063/1.2729673},
journal = {AIP Conference Proceedings},
number = 1,
volume = 907,
place = {United States},
year = {Sat Apr 07 00:00:00 EDT 2007},
month = {Sat Apr 07 00:00:00 EDT 2007}
}
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