Direct testing of scale effects in metal forming friction and lubrication

Peter Søe Nielsen; Matteo Calaon; Nikolas Aulin Paldan; Niels Bay

Direct testing of scale effects in metal forming friction and lubrication

Peter Søe Nielsen, Matteo Calaon, Nikolas Aulin Paldan, Niels Bay

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

Abstract

Downscaling of metal forming operations from macro to micro scale implies significant changes caused by size effects, among these the friction increase, which has been reported by researchers using indirect test methods such as ring-compression test and double-cup-extrusion test. In the present work a new test equipment is developed for direct friction measurements in the range from macro to micro scale. Investigations confirm a significant friction increase when downscaling. Visual inspection of the work pieces show this to be explained by the amount of open and closed lubricant pockets.

Original language	English
Title of host publication	Tribology of Manufacturing Processes
Number of pages	917
Publication date	2010
Pages	497-506
ISBN (Print)	978-2-911256-27-1
Publication status	Published - 2010
Event	4th International Conference on Tribology in Manufacturing Processes - Nice, France Duration: 13 Jun 2010 → 15 Jun 2010 Conference number: 4 http://www.ictmp2010.net/

Conference

Conference	4th International Conference on Tribology in Manufacturing Processes
Number	4
Country/Territory	France
City	Nice
Period	13/06/2010 → 15/06/2010
Internet address	http://www.ictmp2010.net/

Keywords

Lubrication
Friction
Micro forming
Size effects

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title = "Direct testing of scale effects in metal forming friction and lubrication",

abstract = "Downscaling of metal forming operations from macro to micro scale implies significant changes caused by size effects, among these the friction increase, which has been reported by researchers using indirect test methods such as ring-compression test and double-cup-extrusion test. In the present work a new test equipment is developed for direct friction measurements in the range from macro to micro scale. Investigations confirm a significant friction increase when downscaling. Visual inspection of the work pieces show this to be explained by the amount of open and closed lubricant pockets.",

keywords = "Lubrication, Friction, Micro forming, Size effects",

author = "Nielsen, {Peter S{\o}e} and Matteo Calaon and Paldan, {Nikolas Aulin} and Niels Bay",

year = "2010",

language = "English",

isbn = "978-2-911256-27-1",

pages = "497--506",

booktitle = "Tribology of Manufacturing Processes",

note = "4th International Conference on Tribology in Manufacturing Processes ; Conference date: 13-06-2010 Through 15-06-2010",

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TY - GEN

T1 - Direct testing of scale effects in metal forming friction and lubrication

AU - Nielsen, Peter Søe

AU - Calaon, Matteo

AU - Paldan, Nikolas Aulin

AU - Bay, Niels

N1 - Conference code: 4

PY - 2010

Y1 - 2010

N2 - Downscaling of metal forming operations from macro to micro scale implies significant changes caused by size effects, among these the friction increase, which has been reported by researchers using indirect test methods such as ring-compression test and double-cup-extrusion test. In the present work a new test equipment is developed for direct friction measurements in the range from macro to micro scale. Investigations confirm a significant friction increase when downscaling. Visual inspection of the work pieces show this to be explained by the amount of open and closed lubricant pockets.

AB - Downscaling of metal forming operations from macro to micro scale implies significant changes caused by size effects, among these the friction increase, which has been reported by researchers using indirect test methods such as ring-compression test and double-cup-extrusion test. In the present work a new test equipment is developed for direct friction measurements in the range from macro to micro scale. Investigations confirm a significant friction increase when downscaling. Visual inspection of the work pieces show this to be explained by the amount of open and closed lubricant pockets.

KW - Lubrication

KW - Friction

KW - Micro forming

KW - Size effects

M3 - Article in proceedings

SN - 978-2-911256-27-1

SP - 497

EP - 506

BT - Tribology of Manufacturing Processes

T2 - 4th International Conference on Tribology in Manufacturing Processes

Y2 - 13 June 2010 through 15 June 2010

ER -

Direct testing of scale effects in metal forming friction and lubrication

Abstract

Conference

Keywords

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