Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 87 for “"Sheet metal"”.
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FORMABILITY OF SHEET-METAL UNDER LATERAL PRESSURE
… bulge-forming is made by subjecting circular metal diaphragms to hydraulic pressure on one side. Also, the effects of using different die-shoulder radii on the bulge-forming process, bulge geometry, principal strains, membrane stresses, and formabil- ity are studied. A simple theoretical model …
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Rapid fabrication methods for sheet metal dies
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1996.
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The Impact of Process Replacement on Sheet Metal Product Design: The Use of Steel Extrusions Versus Formed Sheet Metal
The sheet metal manufacturing industry, with its rich history and legacy, continues to seek innovative methods to enhance automation and reduce costs in an increasingly competitive market. Design for Manufacturability & Assembly (DFMA) has emerged as a strategy to simplify product designs, thereby …
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Integration of Additive Manufacturing with CNC Sheet Metal Fabrication for Hybrid Fixtures: Design and Implementation of Sheet Metal Tooling Supports
… integration of additive manufacturing and CNC sheet metal fabrication to create hybrid check fixtures. In this case, the tool comprises a sheet metal base and a powder bed fusion cover. Using the Agile product development framework, the team conducted a series of sprints going from concept …
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Die forming of sheet metal using discrete surfaces
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1980.
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Cost Optimization in Sheet Metal Manufacturing by Tuning the Sheet Metal Nesting Strategy Based on Sheet Utilization and Downstream Part Handling Costs
The cutting of sheet metal blanks from raw sheet stock is a crucial process in the sheet metal fabrication industry. One of the primary cost drivers for this process is sheet utilization, which is the amount of raw material processed into a usable blank compared to the total raw material processed. …
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Combined method for die compensation in sheet metal forming
Sheet metal forming is one of the prominent methods to convert blank sheet material into a product. In sheet metal forming, proper allowance of its tools must be given to the elastic recovery, due to the nature of elastic property which is called springback. When stamped sheet components are …
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Optimization of Throughput in Sheet Metal Manufacturing by Tuning the Sheet Metal Nesting Strategy Based on Sheet Utilization and Downstream Part Handling Costs
Sheet metal fabrication has become a fundamental process in modern engineering due to its versatility and is used across a wide range of industries. Nesting a given set of sheet metal blanks onto raw material sheets is a major cost driver as it determines the amount of usable metal and the rest of …
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An investigation of the effectiveness of sheet metal drawing lubricants
Thesis (M.S.)--Michigan State University of Agriculture and Applied Science. Dept. of Mechanical Engineering, 1956
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Evaluation of a variable-configuration-die sheet metal forming machine
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1988.
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Cycle-to-cycle control of reconfigurable die sheet metal forming
… addresses cycle to cycle control as applied to a sheet metal stretch forming process. More specifically, it attempts to validate the use of cycle to cycle (CtC) control for a multiple input-multiple output process. The work presented in this thesis attempts to answer some basic manufacturing …
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Spatial frequency based closed-loop control of sheet metal forming
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1987.
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In-process strain control of stretched formed sheet metal parts
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1999.
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Frictional and geometric effects in punch-stretch sheet metal formability testing
Includes bibliographical references (pages 401-404).
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Sequential setup mechanism design for a reconfiguarable sheet metal forming die
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1997.
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An energy and environmental analysis of aerospace sheet metal part manufacturing
… analyze the energy and environmental impacts of sheet metal manufacturing, focusing on the aerospace industry. The motivation of this work is the introduction of a new incremental sheet forming (ISF) technology called RAFFT, which substitutes heavy part specific dies for flexible generic tools …
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Interactive graphics software for computer aided manufacture of sheet metal ductwork
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1982.
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Analytical and numerical prediction of localized necking in sheet metal forming processes
… tools that can accurately predict failure in sheet metal forming operations. The strain-based forming limit curve (FLC) is one of the tools to predict the maximum permissible strains of thin metallic sheets which are loaded in the plane of the sheet to different states of stress. It may be …
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Formability of Sheet Metal Under Non-Coaxial and Zig Zag Strain Paths
… provide a wider conception of the formability of sheet metal to cover a wider range of sheet metal products. In circular cup drawing, the deformation in the work-piece is coaxial owing to axial symmetry; in other words, during the forming operation, the principal axes of stress and strain coincide …
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Tooling design for three-dimensional sheet metal forming using finite element analysis
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1994.
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