Design And Fabrication Of An Instrument To Test The Mechanical Behavior Of Aluminum Alloy Sheets During High Temperature Gas Pressure Blow Forming
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Design And Fabrication Of An Instrument To Test The Mechanical Behavior Of Aluminum Alloy Sheets During High Temperature Gas Pressure Blow Forming
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Author : Ricardo Vanegas Moller
language : en
Publisher:
Release Date : 2008
Design And Fabrication Of An Instrument To Test The Mechanical Behavior Of Aluminum Alloy Sheets During High Temperature Gas Pressure Blow Forming written by Ricardo Vanegas Moller and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.
Hydraulic bulge forming has been used as a method to determine the properties of sheet metal alloys in biaxial stretching at room temperature. Gas-pressure bulge forming alleviates the issues of using hydraulic fluids when the tests are conducted at high temperatures (above 200°C). Testing a sheet metal alloy by gas-pressure blow-forming (GPBF) under controlled temperature and pressure conditions requires an accurate and reliable mechanism that delivers repeatable results. It was the purpose of this work to design and implement such an instrument. This instrument should deliver real-time data for material displacement during forming, which can then be used to better understand material plastic response and formability. Four different subsystems within this mechanism must interact, but also have enough independence for analysis and for assembly purposes. The combined sub-systems produced a GPBF apparatus capable of forming a sheet aluminum alloy AA5182 with a thickness of 1.5 mm into a dome with a height nearly equal to its radius under a constant gas pressure as low as 40 psi at 450°C. This GPBF apparatus produced, for the first time, in-situ data for dome peak displacement during gas-pressure bulge forming of AA5182 sheet at 450°C.
Magnesium Technology 2012
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Author : Suveen Mathaudhu
language : en
Publisher: Springer
Release Date : 2016-12-19
Magnesium Technology 2012 written by Suveen Mathaudhu and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-12-19 with Technology & Engineering categories.
The Magnesium Technology Symposium, which takes place every year at the TMS Annual Meeting & Exhibition, is one of the largest yearly gatherings of magnesium specialists in the world. Papers are presented in all aspects of the field, ranging from primary production to applications to recycling. Moreover, papers explore everything from basic research findings to industrialization. Magnesium Technology 2011 covers a broad spectrum of current topics, including alloys and their properties; cast products and processing; wrought products and processing; forming, joining, and machining; corrosion and surface finishing; ecology; and structural applications. In addition, you'll find coverage of new and emerging applications in such areas as biomedicine and hydrogen storage.
Simulation And Experimental Investigation Of Hot Forming Of Aluminum Alloy Aa5182 With Application Towards Warm Forming
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Author : John Thomas Lee (master of science in engineering.)
language : en
Publisher:
Release Date : 2012
Simulation And Experimental Investigation Of Hot Forming Of Aluminum Alloy Aa5182 With Application Towards Warm Forming written by John Thomas Lee (master of science in engineering.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.
This study focuses on hot and warm forming properties of aluminum alloy AA5182 sheet, with attention toward warm forming, by using gas pressure to form sheet material. A temperature range of 300°C to 450°C and a pressure range of 690 kPa (100 psi) to 2410 kPa (350 psi) were used in a test matrix of twenty one different test conditions for gas-pressure forming of a sheet into hemispherical dome in a gas-pressure bulge test. Multiple sets of tensile data were used to develop a material model that predicts the dome height and shape of an axisymmetric bulge specimen at any given time during forming. In simulations of the forming process, 17 simulations of the total 21 experimental conditions showed good agreement with the experimentally measured dome heights throughout forming tests. The four cases that did not show good agreement between simulation and experiment are a result of strain-hardening in the material during forming. Strain hardening was not significant in tension testing of specimens and was not accounted for in the material model, which considered only strain rates slower than for these experimental bulge testing. This demonstrates an effect which must be considered in future simulations to predict forming approaching warm conditions. Two experimental bulge specimens were cross-sectioned post forming and grain sizes were measured to determine if grain growth occurred during the forming process. Experimental bulge specimens show no grain growth during the forming process. The tensile specimens from which the material model data were taken were measured to determine if plastic anisotropy was a possible issue. All specimens measured were proved to have deformed nearly isotropically. The results of this study show that predicting warm and hot forming of aluminum alloy AA5182 using gas pressure is possible, but that a more complex material model will be required for accurate predictions of warm forming. This is a very important step toward making hot and warm forming commercially viable mass production techniques.
Aero Digest
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Author :
language : en
Publisher:
Release Date : 1955
Aero Digest written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1955 with Aeronautics categories.
Nbs Special Publication
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Author :
language : en
Publisher:
Release Date : 1975
Nbs Special Publication written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1975 with Weights and measures categories.
Quantitative Comparison Of Aluminum Alloy Sheet Forming Methods
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Author : Senthilkumar Venkatesan
language : en
Publisher:
Release Date : 2010
Quantitative Comparison Of Aluminum Alloy Sheet Forming Methods written by Senthilkumar Venkatesan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Aluminum alloys categories.
Scientific And Technical Aerospace Reports
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Author :
language : en
Publisher:
Release Date : 1973
Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with Aeronautics categories.
International Aerospace Abstracts
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Author :
language : en
Publisher:
Release Date : 1997
International Aerospace Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Aeronautics categories.
An Index Of U S Voluntary Engineering Standards Supplement
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Author : William J. Slattery
language : en
Publisher:
Release Date : 1972
An Index Of U S Voluntary Engineering Standards Supplement written by William J. Slattery and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1972 with Standards, Engineering categories.
An Index Of U S Voluntary Engineering Standards Supplement 2
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Author : William J. Slattery
language : en
Publisher:
Release Date : 1975
An Index Of U S Voluntary Engineering Standards Supplement 2 written by William J. Slattery and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1975 with Standards, Engineering categories.