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 50 for “"laser cutting"”.
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Laser cutting applications in product design
Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1998.
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Laser Cutting Machine: Justification of initial costs
The Industrial Laser is firmly established in metalcutting as the tool of choice for many applications. The elevator division of Montgomery KONE Inc., in an effort to move towards quality, ontime, complete deliveries and 100% customer satisfaction, decided to invest in new equipment to improve …
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Surface integrity of laser cutting nitinol shape memory alloy
… is very difficult to be shaped by mechanical cutting due to strong work hardening, excessive tool wear, and bur formation. These technical hurdles can be overcome by laser cutting. A fine focused laser beam can produce a micrometer size kerf on Nitinol, and the non-contact thermal process can …
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Heat transfer during pulsed laser cutting of thin sheets
… model of the temperature field during pulsed laser cutting of thin sheets (approximately 2.5 x l0⁻⁵ m) was developed. Cutting was simulated through removal of nodes from a finite difference scheme based on sensible heating to the phase change temperature and a single value of latent heat …
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ANALYSIS AND OPTIMIZATION OF LASER CUTTING PROCESS FOR STRUCTURAL STEELS
Laser cutting is a widely used technology for precision cutting of various materials, in-cluding mild structural steel. It involves the use of a high-powered laser beam to melt, burn, or vaporize the material, resulting in a clean and accurate cut. This doctoral thesis presents a comprehensive …
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MODELING AND TESTING OF WELDED STRUCTURAL JOINTS MACHINED WITH LASER CUTTING TECHNOLOGY
… Structural Section (HSS) joints manufactured by Laser Cutting Technology (LCT). In mid-high-rise steel structures, Circular or Rectangular Hollow Structural Sections (CHS/RHS) have emerged as recommended structural members. Nonetheless, the complexity of beam-to-column joints of these members …
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Accuracy improvement strategies for a laser cutting robot prototype: design analysis and optimization
L'abstract è presente nell'allegato / the abstract is in the attachment
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Optimisation of process parameters of high power CO2 Laser cutting for advanced materials
… of advanced material processing techniques. Laser beam cutting (LBC) is an advanced processing technique applied widely in industry to cut different materials with high production rates. In order to optimise the LBC process, it is essential to first model the process accurately. In fact, an …
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Modeling of Steel Laser Cutting Process Using Finite Element, Machine Learning, and Kinetic Monte Carlo Methods
Laser cutting is a manufacturing technology that uses a focused laser beam to melt, burn and vaporize materials, resulting in a high-quality cut edge. Although previous efforts are primarily based on a trial-and-error approach, there is insufficient understanding of the laser cutting process, thus …
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Effects of material variables and key processing parameters on the oxygen-assisted CO₂ laser cutting of mild carbon steel plates, The
Includes bibliographical references (pages 163-169).
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Optimization of parameters of laser non-linear inclined cutting on stainless steel metal
The aim of this research is to develop a laser cutting process model that can predict the relationship between the process input parameters and resultant surface roughness; kerf width characteristics. The research conduct is based on the Design of Experiment (DOE) analysis. Response Surface …
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Three dimentional control of a diode based laser cutter
Laser cutting is a widely used technology in many areas of industry and research. Conventional laser cutters only offer control of two axes and either cut through a material or rudimentary control of the third dimension is possible by varying the power, pulse rate and travel rate of the laser beam. …
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Laser foil printing and surface polishing processes
… technology for fabricating metal parts, called Laser Foil Printing (LFP), was proposed and developed in this dissertation. The manufacturing sub-processes comprising the LFP technology were comprehensively studied, which include the laser spot welding of foil, laser raster-scan welding of foil, …
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Development and evaluation of the manufacture of a coronary stent for the South African market
… most popular slotted tube design are usually laser cut out of a tube with good results. Since there was no suitable laser cutting equipment in use in South Africa, it was undertaken to manufacture stent prototypes by spark erosion to establish the general suitability of the method for stent …
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Designing and Fabricating Polarized Light Mosaics with User-Defined Color-Changing Behaviors
… as well as a fabrication process based on laser cutting and welding that requires minimal assembly by the user. We define the design space for Polagons, evaluate the achievable color spectrum, and demonstrate how they can enable new applications in fields such as architectural design, data …
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3D PRINTING OF ELASTOMERS AND APPLICATIONS
… ways to fit in these applications, casting and laser cutting are employed which may increase the waste material and leads to increase the total cost and time. By introducing additive manufacturing for fabrication of such functional polymers, the cost, time and functionality can be controlled. …
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Digital fabrication in the architectural design process
… methods, such as three-dimensional printing, laser cutting, and desktop milling. The interviews and experiments form a basis for suggesting better ways to utilize current digital fabrication methods in design and for proposing future methods better suited for the architectural design process.
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Fabrication Methods for Polarized Light Collages
… created a visualization tool and tested various laser cutting settings and fabrication processes. The visualization tool takes in two vector image inputs and allows the user to play around with the color and image shifting by mimicking the rotation of the polarizers or birefringent material. The …
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Design, Fabrication and Characterization of a Microfluidic Device for Ultrasound-based Cell Sorting
… by employing manufacturing processes like laser cutting, micromachining, and acrylic bonding. The device was then characterized by performing electrical impedance analysis, flow continuity experiments, and pulse-echo testing. Results suggested that flow in the flow channel was continuous, …
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