Evolution of microstructure and material properties during combined stamping-forging of aluminium and magnesium alloys

In recent years, there has been an increasing demand for light weight products of intricate geometrical complexities. Currently, the existing sheet-bulk metal forming processes have the capability of producing thin walled metal parts of near net shape sizes. However, the conventional methods of form...

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Main Author: Tay, Stanley Wei Liang
Other Authors: Castagne Sylvie Jeanne Constance
Format: Final Year Project
Language:English
Published: 2016
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Online Access:http://hdl.handle.net/10356/67099
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-670992023-03-04T19:14:32Z Evolution of microstructure and material properties during combined stamping-forging of aluminium and magnesium alloys Tay, Stanley Wei Liang Castagne Sylvie Jeanne Constance School of Mechanical and Aerospace Engineering DRNTU::Engineering In recent years, there has been an increasing demand for light weight products of intricate geometrical complexities. Currently, the existing sheet-bulk metal forming processes have the capability of producing thin walled metal parts of near net shape sizes. However, the conventional methods of forming i.e., forging or drawing, often have limitations. These methods face challenges such as high loading pressure and also the possibility of having defects due to the forming behaviour of the material. In order to cope with these issues, a new form of manufacturing process involving multiple stages, combined stamping-forging, has been introduced. In this study, the concept of a multiple step combined stamping-forging process is evaluated by investigating its effectiveness on aluminium and magnesium alloys. Furthermore, hardness testing and metallography techniques are employed to understand the evolution of microstructure and material properties of these alloys during the process. This research has found the effectiveness of combined stamping-forging on aluminium alloy 1100. However, forming with magnesium alloy AZ31 serves as a challenge due to its low formability properties. The feasibility of forming with magnesium alloy AZ31 should be experimented in future with a reduced strain rate during the operation. This aims to increase the fracture toughness for a defect-free fabrication. Bachelor of Engineering (Mechanical Engineering) 2016-05-11T08:41:48Z 2016-05-11T08:41:48Z 2016 Final Year Project (FYP) http://hdl.handle.net/10356/67099 en Nanyang Technological University 61 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering
spellingShingle DRNTU::Engineering
Tay, Stanley Wei Liang
Evolution of microstructure and material properties during combined stamping-forging of aluminium and magnesium alloys
description In recent years, there has been an increasing demand for light weight products of intricate geometrical complexities. Currently, the existing sheet-bulk metal forming processes have the capability of producing thin walled metal parts of near net shape sizes. However, the conventional methods of forming i.e., forging or drawing, often have limitations. These methods face challenges such as high loading pressure and also the possibility of having defects due to the forming behaviour of the material. In order to cope with these issues, a new form of manufacturing process involving multiple stages, combined stamping-forging, has been introduced. In this study, the concept of a multiple step combined stamping-forging process is evaluated by investigating its effectiveness on aluminium and magnesium alloys. Furthermore, hardness testing and metallography techniques are employed to understand the evolution of microstructure and material properties of these alloys during the process. This research has found the effectiveness of combined stamping-forging on aluminium alloy 1100. However, forming with magnesium alloy AZ31 serves as a challenge due to its low formability properties. The feasibility of forming with magnesium alloy AZ31 should be experimented in future with a reduced strain rate during the operation. This aims to increase the fracture toughness for a defect-free fabrication.
author2 Castagne Sylvie Jeanne Constance
author_facet Castagne Sylvie Jeanne Constance
Tay, Stanley Wei Liang
format Final Year Project
author Tay, Stanley Wei Liang
author_sort Tay, Stanley Wei Liang
title Evolution of microstructure and material properties during combined stamping-forging of aluminium and magnesium alloys
title_short Evolution of microstructure and material properties during combined stamping-forging of aluminium and magnesium alloys
title_full Evolution of microstructure and material properties during combined stamping-forging of aluminium and magnesium alloys
title_fullStr Evolution of microstructure and material properties during combined stamping-forging of aluminium and magnesium alloys
title_full_unstemmed Evolution of microstructure and material properties during combined stamping-forging of aluminium and magnesium alloys
title_sort evolution of microstructure and material properties during combined stamping-forging of aluminium and magnesium alloys
publishDate 2016
url http://hdl.handle.net/10356/67099
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