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 47 for “"tool design"”.
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Rapid machine tool design
Rapid Machine Tool Design encompasses new materials and manufacturing and design processes that increase the speed and flexibility of the machine tool development process. Rapid design implies increased concurrency and overlap of design process steps, and it allows a quick and efficient response to …
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Activity-based Knowledge Management Tool Design for Educators
Traditionally, knowledge management tool design has fit into the repository paradigm: a database of stored information that can be queried by an individual seeking information. These tools often rely on two distinct user groups: those who produce the knowledge and those who seek it. The disparity …
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CAD Tool Design for NCL and MTNCL Asynchronous Circuits
… of a method developed to readily convert Boolean designs into an ultra-low power asynchronous design methodology called MTNCL, which combines multi-threshold CMOS (MTCMOS) with NULL Convention Logic (NCL) systems. MTNCL provides the leakage power advantages of an all high-Vt implementation with a …
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Tool design for the production of a collimator on a 3-axes vertical milling centre
… of operations than what they were initially designed for are sought and thereby make the investment much more cost effective. A cobalt refinery plant at Chambishi Metals Pic running at normal capacity consumes about one collimator in every three to four weeks. The cost of replacement of each …
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Tool design for the production of a collimator on a 3-axes vertical milling centre
… of operations than what they were initially designed for are sought and thereby make the investment much more cost effective. A cobalt refinery plant at Chambishi Metals Pic running at normal capacity consumes about one collimator in every three to four weeks. The cost of replacement of each …
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The Effectiveness of Computer-Based Tutorials in Learning Computer-Aided Design Methods for Tool Design Procedures
… the past twenty-five years the process of designing and manufacturing a product has been revolutionized by the integration of Computer Aided Design (CAD). Although three-dimensional solid modeling, or 3-D CAD offers a better representation of the product in a virtual environment, it can be …
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Tool design for and process optimization of an automated workstation for the manufacture of fiber optic gyroscopes
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1998.
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Modeling and control of friction stir welding
… different factors, such as process parameters, tool design, material properties and boundary conditions. Therefore, a good understanding of issues related to modeling, control, and metallurgy will be necessary to exploit its maximum potential. The objectives of this study were twofold. First, a …
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A closed-loop shape control methodology for flexible stretch forming over a reconfigurable tool
… forming of sheet metal parts and associated tool design methods used in the aerospace industry are still more an art than a science. Few analytical tool design techniques exist and even fewer are used in practice. When they are, they only address the result but not the cause of the forming …
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The effect of handle characteristics of a hammer stapler on biomechanical and physiological response
Frequent and prolonged use of an improperly designed hand tool not only affects productivity but may also cause painful symptoms which, if left untreated, can develop into chronic musculoskeletal disorders (MSDs). This study was undertaken to assess the effects of ergonomic guidelines related to …
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Building KiMoSin : design requirements for kinetic interfaces in protein education
Design guidelines for tools to enhance protein education are developed and applied to a prototype tool. A literature search and personal experience suggest kinetic, tangible models fill the current gaps in protein education. Thirty-six personal interviews with biology instructors and students set a …
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Alutiiq Engineering: The Mechanics and Design of Skeletal Technologies in Alaska's Kodiak Archipelago
… raw material innate and working properties, and tool design as they relate to skeletal media and technologies. Data were synthesized from existing biomedical literature on the structure and mechanical properties of technologically-relevant osseous media, including bird and cetacean bone, and …
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Design of a mechanical system for tillage tool depth control on small farm tractor
… the tractor, and therefore they must be designed with caution and mechanical integrity. Tillage tool attachment systems must be designed to determine a tool's maximum depth into the soil and withstand the resulting forces from the soil. The following paper presents a design for an …
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Experimental Measurements of Longitudinal Load Distributions on Friction Stir Weld Pin Tools
… of these forces is critical to proper tool design. This study describes a technique to measure the longitudinal force distribution on a friction stir weld pin tool. Total longitudinal forces were recorded on a dynamometer while welding 6061 aluminum with non-threaded pins that varied in …
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A theoretical and experimental investigation of the BTA deep hole tool support in the machining zone
Self-piloting tools feature the unique use of two support pads and the surrounding hole as a guide bushing to steer itself along the hole being machined. The piloting hole, in conjunction with the two support pads, provides for the tool balance in the hole transverse cross-section. However, in the …
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Mechanical design for advancing small-scale solid state additive manufacturing to enable deposition of commercial metal alloys
… version of AFSD, including new machine designs and tools for handling miniaturized materials. The study demonstrates successful deposition of high-strength alloys, like marten-sitic steel and aluminum, addressing challenges such as material buckling, heating, and tool stability. Key …
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Building a tool for determining e-learning readiness in organizations: A design and development study
… a course level. An e-learning readiness analysis tool will add to existing tools but focus on the workplace organization as the unit of study. The purpose of this design and development study is to create an analysis tool for determining e-learning readiness in organizations. Four existing …
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Micro-injection moulded microneedles for drug delivery.
… fed into injection moulding simulation software tools (Moldflow) to assist the MN production process design. The optimal design was then used to produce a full 3D solid model of the injection mould and mould insert. Furthermore various design of experiments were conducted considering input …
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Development of a Methodology for Assessing Military Team Processes
… The purpose of this study was to develop a tool to measure performance in each of these individual team processes. This study begins the measurement development cycle by developing a tool that uses direct observation to collect data on team processes. The tool was then tested in a battle …
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Model based simulation of broaching operation: cutting mechanics, surface integrity, and process optimization
… is performed by pushing or pulling a tapered tool through the workpiece to remove the unwanted material and produce the required profile. Broaching is also acknowledged because of its high productivity and attainable surface quality in comparison to the other machining processes. The objective …
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