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 13 of 13 for “"Subtractive manufacturing"”.
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Exploring the Application of Lean Processes Enhanced by Digital Archiving in Precision Subtractive Manufacturing
Subtractive precision manufacturing produces components for many industries: aerospace, astrospace, defense, biotech, medical device, and more. This paper discusses the effects of applying lean principles enhanced by digital archiving to subtractive precision manufacturing. An analysis of the …
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Development and evaluation of interfacial structures for hybrid manufacturing
Hybrid manufacturing is a combination of additive (deposition) and subtractive (machining) manufacturing in a single machine tool. Such a system can be used for near net shape manufacturing and component repair using either similar or dissimilar materials. This dissertation investigates …
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Development of an integrated inspection system for additive and subtractive hybrid manufacturing
… applications in systems combining additive and subtractive manufacturing technologies, commonly referred to as hybrid manufacturing. Hybrid manufacturing has opened a new and innovative avenue in product development, and also in product repair and maintenance. One of the areas where it can excel …
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Simulation and Experimental Testing of Additively Manufactured Strain Gauges
Additive manufacturing has seen a rapid increase as a method of fabricating both design phase prototypes and end-user products. The increase in development of the technology has driven the development of new products such as conductive 3D printer filaments that can be used to fabricate electrically …
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Optical Printing of Multiscale Hydrogel Structures
… synergistically combined large-scale additive manufacturing with small-scale additive/subtractive manufacturing. This multiscale fabrication capability was used to (i) align cells using laser induced densification in Chapter 3, (ii) develop diffractive optics based on changes in refractive …
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Fluidic Assisted Fabrication of Elastomer Optical Lenses Using Capillarity
… of optical glass-based lens fabrication require subtractive manufacturing, which leads to high loss of material and long cycle time. With polymeric lenses, however, additive manufacturing methods work very well and have advantages of shorter processing times, negligible material loss and reduced …
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Build strategy investigation of TI-6AL-4V produced via a hybrid additive manufacturing process
… within a single LMD process. Hybrid additive manufacturing (HAM), which integrates additive and subtractive manufacturing in one process, has been proposed to increase the feasibility of complex parts fabrication. This dissertation aims to improve the applications of Ti-6Al-4V parts fabricated …
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Step-Stress Fatigue, Fracture Toughness and Load to Failure of an Additively Manufactured Ceramic Filled Hybrid Crown Material
… toward fully digital workflows with additive and subtractive manufacturing. Computer Aided Design Computer Aided Manufacturing (CADCAM) and subtractive manufacturing have led to a proliferation of established restorative materials. In September 2021, the FDA approved Varseosmile Crown Plus, by …
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A study of positions available in additive manufacturing/3D printing and the education and skill requirements for these positions
<p>Additive manufacturing is defined as the process of joining materials to make objects from 3D model data, as opposed to subtractive manufacturing methodologies. Additive manufacturing positions are growing at an exponential rate, and the adoption of this disruptive technology is projected to …
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Development of a cost-effective hybrid strategy for manufacturing plastic injection mould inserts
… cost-effectiveness of combining metal additive manufacturing (AM) technology with well-established conventional mould-making processes to manufacture high-performance injection mould inserts. Evaluations, analyses and development work were undertaken in three separate phases. Phase one involved …
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Making machines that make : object-oriented hardware meets object-oriented software
… quite deliver on these promises of advanced manufacturing. Existing digital fabrication tools enable repeatability and precision by using codes to describe machine actions. But the infrastructure used for digital fabrication machines is difficult to extend, modify, and customize. It is very …
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Materials and processes for the optical additive manufacturing of advanced organic/inorganic nanocomposites for the mask-less plating of insulator and semiconductor substrates, and microfluidic devices
… the need to find new strategies for the Additive Manufacturing (AM) and to obtain new processable nanocomposites with enhanced properties. The AM technologies allow to build 3D objects with complex geometries by adding layer-upon-layer of material without any mold and permits to fabricate …
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Mechanics driven architectures for flexible nanomaterial-based sensors
… with the recent evolution of additive and subtractive manufacturing, I adopt commercial laser cutter and laminator to achieve scalable and cost-effective graphene patterning and transfer evident by micro-sized graphene features of various shapes. In addition, the rapid prototyping …