The effect of lubricant viscosity in cold work forward extrusion
In cold work extrusion, lubricants play an important role in lubricating the tool and workpiece surfaces, preventing metal-to-metal contact and reducing sliding friction, so that the workpiece can be extruded smoothly without severe wear due to lubricant starvation. In this paper, the influence of l...
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my.utm.628852017-06-19T03:57:03Z http://eprints.utm.my/id/eprint/62885/ The effect of lubricant viscosity in cold work forward extrusion Samion, Syahrullail Kamitani, Shunpei Nakanishi, Kenji TJ Mechanical engineering and machinery In cold work extrusion, lubricants play an important role in lubricating the tool and workpiece surfaces, preventing metal-to-metal contact and reducing sliding friction, so that the workpiece can be extruded smoothly without severe wear due to lubricant starvation. In this paper, the influence of lubricant viscosity in cold work forward extrusion was investigated. The lubricants were additive-free, paraffinic mineral oil, which may have low, medium or high viscosity. The workpiece material was pure aluminum A1100, extruded with extrusion ratio of 3. The analysis focused on extrusion force, workpiece surface roughness after the extrusion process and the metal flow in the deformation zone of the workpiece. Using the visioplasticity method, the sliding velocity was calculated from the metal flow. Results showed that, the higher the lubricant viscosity, the lower the extrusion force generated. However, a high-viscosity lubricant produces coarser workpiece surface conditions after the extrusion process. Trans Tech Publication 2014 Article PeerReviewed Samion, Syahrullail and Kamitani, Shunpei and Nakanishi, Kenji (2014) The effect of lubricant viscosity in cold work forward extrusion. Applied Mechanics and Materials, 554 . pp. 291-295. ISSN 1660-9336 http://dx.doi.org/10.4028/www.scientific.net/AMM.554.291 DOI:10.4028/www.scientific.net/AMM.554.291 |
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TJ Mechanical engineering and machinery Samion, Syahrullail Kamitani, Shunpei Nakanishi, Kenji The effect of lubricant viscosity in cold work forward extrusion |
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In cold work extrusion, lubricants play an important role in lubricating the tool and workpiece surfaces, preventing metal-to-metal contact and reducing sliding friction, so that the workpiece can be extruded smoothly without severe wear due to lubricant starvation. In this paper, the influence of lubricant viscosity in cold work forward extrusion was investigated. The lubricants were additive-free, paraffinic mineral oil, which may have low, medium or high viscosity. The workpiece material was pure aluminum A1100, extruded with extrusion ratio of 3. The analysis focused on extrusion force, workpiece surface roughness after the extrusion process and the metal flow in the deformation zone of the workpiece. Using the visioplasticity method, the sliding velocity was calculated from the metal flow. Results showed that, the higher the lubricant viscosity, the lower the extrusion force generated. However, a high-viscosity lubricant produces coarser workpiece surface conditions after the extrusion process. |
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Article |
author |
Samion, Syahrullail Kamitani, Shunpei Nakanishi, Kenji |
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Samion, Syahrullail Kamitani, Shunpei Nakanishi, Kenji |
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Samion, Syahrullail |
title |
The effect of lubricant viscosity in cold work forward extrusion |
title_short |
The effect of lubricant viscosity in cold work forward extrusion |
title_full |
The effect of lubricant viscosity in cold work forward extrusion |
title_fullStr |
The effect of lubricant viscosity in cold work forward extrusion |
title_full_unstemmed |
The effect of lubricant viscosity in cold work forward extrusion |
title_sort |
effect of lubricant viscosity in cold work forward extrusion |
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Trans Tech Publication |
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2014 |
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http://eprints.utm.my/id/eprint/62885/ http://dx.doi.org/10.4028/www.scientific.net/AMM.554.291 |
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