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Title: Frictional conditions between alloy AA6060 aluminium and tool steel

Abstract

The frictional conditions in the new process of screw extrusion of aluminium have been investigated. The contact behaviour between the aluminum alloy and the tool steel in the extruder is vital for understanding the extrusion process. Using a compressive-rotational method for frictional measurements the conditions for unlubricated sticking friction between aluminum alloy AA6060 and tool steel at different combinations of temperatures and pressures have been investigated. In this method the samples in the form of disks are put under hydrostatic pressure while simultaneously being rotated at one end. Pins made from contrast material have been inserted into the samples to measure the deformation introduced. This approach along with 3D simulations form a method for determining the frictional conditions. The paper describes the test method and the results. It was found that the necessary pressure for sticking to occur between the aluminum AA6060 and the different parts of the extruder is heavily influenced by the temperature.

Authors:
;  [1]
  1. Norwegian University of Science and Technology-Dept. of Engineering Design and Materials-Norway (Norway)
Publication Date:
OSTI Identifier:
21516746
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1353; Journal Issue: 1; Conference: ESAFORM 2011: 14. international ESAFORM conference on material forming, Belfast, Northern Ireland (United Kingdom), 27-29 Apr 2011; Other Information: DOI: 10.1063/1.3589773; (c) 2011 American Institute of Physics; Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ALUMINIUM; ALUMINIUM ALLOYS; DEFORMATION; EXTRUSION; FRICTION; HEAT TREATMENTS; SIMULATION; STEELS; TOOLS; ALLOYS; CARBON ADDITIONS; ELEMENTS; EQUIPMENT; FABRICATION; IRON ALLOYS; IRON BASE ALLOYS; MATERIALS WORKING; METALS; TRANSITION ELEMENT ALLOYS

Citation Formats

Wideroee, Fredrik, and Welo, Torgeir. Frictional conditions between alloy AA6060 aluminium and tool steel. United States: N. p., 2011. Web. doi:10.1063/1.3589773.
Wideroee, Fredrik, & Welo, Torgeir. Frictional conditions between alloy AA6060 aluminium and tool steel. United States. doi:10.1063/1.3589773.
Wideroee, Fredrik, and Welo, Torgeir. Wed . "Frictional conditions between alloy AA6060 aluminium and tool steel". United States. doi:10.1063/1.3589773.
@article{osti_21516746,
title = {Frictional conditions between alloy AA6060 aluminium and tool steel},
author = {Wideroee, Fredrik and Welo, Torgeir},
abstractNote = {The frictional conditions in the new process of screw extrusion of aluminium have been investigated. The contact behaviour between the aluminum alloy and the tool steel in the extruder is vital for understanding the extrusion process. Using a compressive-rotational method for frictional measurements the conditions for unlubricated sticking friction between aluminum alloy AA6060 and tool steel at different combinations of temperatures and pressures have been investigated. In this method the samples in the form of disks are put under hydrostatic pressure while simultaneously being rotated at one end. Pins made from contrast material have been inserted into the samples to measure the deformation introduced. This approach along with 3D simulations form a method for determining the frictional conditions. The paper describes the test method and the results. It was found that the necessary pressure for sticking to occur between the aluminum AA6060 and the different parts of the extruder is heavily influenced by the temperature.},
doi = {10.1063/1.3589773},
journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1353,
place = {United States},
year = {2011},
month = {5}
}