The study on the micro-pits location on the extrusion die surface

The present research concerns study of the effects of micro-pits arrays formed on the taper die by experimental verification using. A series of taper die with micro-pits with different location at existence of die were design. A taper without micro-pits was used as a reference. The lubricant is addi...

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Main Author:	Ahmad, Norhayati
Format:	Thesis
Language:	English
Published:	2010
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://eprints.utm.my/id/eprint/12309/4/NorhayatiAhmadMFKM2010.pdf
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id	my-utm-ep.12309
record_format	uketd_dc
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Ahmad, Norhayati The study on the micro-pits location on the extrusion die surface
description	The present research concerns study of the effects of micro-pits arrays formed on the taper die by experimental verification using. A series of taper die with micro-pits with different location at existence of die were design. A taper without micro-pits was used as a reference. The lubricant is additive free paraffinic mineral oil. P2 is a low viscosity lubricant while P3 is a high viscosity lubricant. The experimental results are focusing on the extrusion load, billet surface roughness, and grid pattern observation. From the result, the micro-pits array affected on surface roughness if the lubricant viscosity is higher but the extrusion load also become higher.
format	Thesis
qualification_level	Master's degree
author	Ahmad, Norhayati
author_facet	Ahmad, Norhayati
author_sort	Ahmad, Norhayati
title	The study on the micro-pits location on the extrusion die surface
title_short	The study on the micro-pits location on the extrusion die surface
title_full	The study on the micro-pits location on the extrusion die surface
title_fullStr	The study on the micro-pits location on the extrusion die surface
title_full_unstemmed	The study on the micro-pits location on the extrusion die surface
title_sort	study on the micro-pits location on the extrusion die surface
granting_institution	Universiti Teknologi Malaysia, Faculty of Mechanical Engineering
granting_department	Faculty of Mechanical Engineering
publishDate	2010
url	http://eprints.utm.my/id/eprint/12309/4/NorhayatiAhmadMFKM2010.pdf
_version_	1747814919948992512
spelling	my-utm-ep.123092018-05-27T03:19:51Z The study on the micro-pits location on the extrusion die surface 2010-12 Ahmad, Norhayati TJ Mechanical engineering and machinery The present research concerns study of the effects of micro-pits arrays formed on the taper die by experimental verification using. A series of taper die with micro-pits with different location at existence of die were design. A taper without micro-pits was used as a reference. The lubricant is additive free paraffinic mineral oil. P2 is a low viscosity lubricant while P3 is a high viscosity lubricant. The experimental results are focusing on the extrusion load, billet surface roughness, and grid pattern observation. From the result, the micro-pits array affected on surface roughness if the lubricant viscosity is higher but the extrusion load also become higher. 2010-12 Thesis http://eprints.utm.my/id/eprint/12309/ http://eprints.utm.my/id/eprint/12309/4/NorhayatiAhmadMFKM2010.pdf application/pdf en public masters Universiti Teknologi Malaysia, Faculty of Mechanical Engineering Faculty of Mechanical Engineering 1. Geiger, M., U. Engel, and M. Pfestorf, (1997). New Developments for the Qualification of Technical Surfaces in Forming Processes. CIRP Annals - Manufacturing Technology. 46(1): p. 171-174. 2. Osakada, K., (1977). A mechanism of lubricant trapping in slow speed compression. International Journal of Mechanical Sciences. 19(7): p. 413- 421. 3. Azushima, A., et al., (1996). Direct Observation of Microcontact Behavior at the Interface between Tool and Workpiece in Lubricated Upsetting. CIRP Annals - Manufacturing Technology. 45(1): p. 205-210. 4. Nilsson B, R.B.-G., Thomas TR, Wiklund D, Xiao L, Oil pockets and surface topography: mechanism of friction reduction. Proceedings of the XI International Colloquium on Surfaces, Chemnitz, Germany, 2004 (Addendum). 5. Koszela, W., P. Pawlus, and L. Galda, (2007). The effect of oil pockets size and distribution on wear in lubricated sliding. Wear. 263(7-12): p. 1585- 1592. 6. Grabon, W., P. Pawlus, and J. Sep, Tribological characteristics of oneprocess and two-process cylinder liner honed surfaces under reciprocating sliding conditions. Tribology International. In Press, Corrected Proof. 7. Costa, H.L. and I.M. Hutchings, (2007). Hydrodynamic lubrication of textured steel surfaces under reciprocating sliding conditions. Tribology International. 40(8): p. 1227-1238. 8. Hutchings, I.M., (1992). Tribology: friction and wear of engineering materials. Materials & Design. 13(3): p. 187-187. 9. X. Wang, K.K., K. Adachi, (2002). The Lubrication Effect of Micro-Pits on Parallel Sliding Faces of SiC in Water. Tribology Transactions. 45(Issue 3): p. 294 - 301 10. Wang, X., et al., (2001). The effect of laser texturing of SiC surface on the critical load for the transition of water lubrication mode from hydrodynamic to mixed. Tribology International. 34(10): p. 703-711. 11. U. Pettersson, S.J., (2004). Friction and Wear Properties of Micro Textured DLC Coated Surfaces in Boundary Lubricated Sliding Tribology Letters. 17(3): p. 553-559. 12. Ronen A, E.I., Kligerman, (2001). Friction-reducing surface-texturing in reciprocating automotive components. Tribology Transactions. 44(3): p. 359-366. 13. Steinhoff, K., W. Rasp, and O. Pawelski, (1996). Development of deterministic-stochastic surface structures to improve the tribological conditions of sheet forming processes. Journal of Materials Processing Technology. 60(1-4): p. 355-361. 14. Costa, H.L. and I.M. Hutchings, (2009). Effects of die surface patterning on lubrication in strip drawing. Journal of Materials Processing Technology. 209(3): p. 1175-1180. 15. Le, H.R. and M.P.F. Sutcliffe, (2002). Measurements of friction in strip drawing under thin film lubrication. Tribology International. 35(2): p. 123- 128. 16. Bech, J., N. Bay, and M. Eriksen, (1998). A Study of Mechanisms of Liquid Lubrication in Metal Forming. CIRP Annals - Manufacturing Technology. 47(1): p. 221-226. 17. Lu, S.S. and Y.H. Chuang, (1985). Effects of Surface Roughness on Lubrication in Cold Rolling of Metals. Journal of Tribology. 107(4): p. 522- 526. 18. Dick, K. and J.G. Lenard, (2005). The effect of roll roughness and lubricant viscosity on the loads on the mill during cold rolling of steel strips. Journal of Materials Processing Technology. 168(1): p. 16-24. 19. Fang, G., J. Zhou, and J. Duszczyk, (2008). Effect of pocket design on metal flow through single-bearing extrusion dies to produce a thin-walled aluminium profile. Journal of Materials Processing Technology. 199(1-3): p. 91-101. 20. Lesniak, D. and W. Libura, (2007). Extrusion of sections with varying thickness through pocket dies. Journal of Materials Processing Technology. 194(1-3): p. 38-45. 21. S.Kamitani, K.N.a.S.S., (May 2005). The Effect of Micro-pits Formed on the Tool Surface on Metal Flow under Bulk Plastic Deformation. International Tribology Conference, Kobe, Japan: p. 254.

The study on the micro-pits location on the extrusion die surface

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