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 52 for “"Milling Process"”.
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Ball milling process
Thesis: B.S., Massachusetts Institute of Technology, Department of Mechanical Engineering, 1963
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Virtual three-axis milling process simulation and optimization
… comprehensive modeling of the machining processes is a fundamental requirement in identifying optimal cutting conditions which result in high productivity rates without violating accuracy throughout the part production process. This thesis presents generalized virtual simulation and …
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Empirical model-based control for end milling process
… surface finish and the cutting force in the end milling machining process, a design of experiment has been conducted to determine the effect of two different materials (aluminium and steel) and the machining parameters (feed rate, spindle speed) at a predefined depth of cut. Regression model has …
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Evaluation of an Alkali Corn Wet Milling Process
… ton/day (105,000 bu/day) plant, the alkali wet milling process saved 20% in equipment costs and 2% in total production costs. The return on investment for the alkali wet milling process was 17.8% compared to 14.1% for the SO$\sb2$ process.
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Modeling and analysis of the chemical milling process
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1997.
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Machining feature-based system for supporting step-compliant milling process
… that is independent of all the information processing systems for product information model. STEP Part 21 is the first implementation method from EXPRESS language and implemented successfully in CAD data. However, this text file consists of purely geometrical and topological data is hardly …
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Chemical treatment of bread corn during milling process to eliminate insect contamination
… literature review was compiled covering the processing of corn, the description of insects infesting stored corn, the sources of insect contamination, the tests for contamination in the corn meal, and the methods now employed or proposed for the reduction of this contamination. In connection …
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The use of variable spindle speed for vibration control in face milling process
… the most important issues in the metal cutting process. It has been recognized for several decades that many machining process performance measures are influenced by vibrations: e.g., surface finish, tool wear, and cutting force characteristics. Vibrations result in a poor surface finish of the …
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Identification of Depth -of -Cut Variations and Their Effects on the Process Monitoring for the End Milling Process
… is present, a fully-flexible mechanistic end milling force model is proposed to generate simulated force profiles for the DOC variation estimation. The end mill cutter is discretized as a series of elliptical disc elements. Effective cutter geometries, viz., effective helix angle and effective …
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Investigation of the fracture phenomena during the milling process of inorganic particulates and brittle fracture of polymer composites using fractal theory
… well as small and produced by the simultaneous milling and coating with nano-silica to the Surface Fractal Dimension of the impact fracture surfaces. First, the dissertation examines the behavior of un-coated and micron-sized wax pre-coated particulates in a specially designed Single-event Fluid …
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Modelling and simulation of surface roughness obtain from micro milling by using artificial neural network
… the most important properties in any machining process and in micro milling it is really critical as the product needs to be of a very high surface quality. Therefore the present research is aimed at finding the optimal process parameters for end milling process and optimum surface roughness. In …
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Machine design to improve accuracy and repeatability in on-site circular milling
… The expected outcomes of the manufacturing processes are always increasing, therefore requiring higher levels of accuracy. The milling must be performed under a wide range of environmental conditions. The environmental conditions may prohibit the use of high accuracy measurement systems. The …
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Effect of processing on the distribution of cadmium in wheaten products
… in the wheat, the fate of the cadmium during the milling process and how this affects the levels in bread products is also known. The objectives of this study were to investigate cadmium levels in wheat from Australian silo sites, determine if a correlation existed between cadmium level and soil …
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Cycle Time Reduction for CNC Machining Workcells in High-Mix Low-Volume Manufacturing
… available manufacturing capacity, with the CNC milling workcell identified as the bottleneck operation. This research, conducted in an active, high-mix, low-volume production environment, focuses on evaluating and implementing improvements to CNC machining parameters to enhance the workcell's …
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Manufacture and synthesis of a dark micro magnetic flake powder for forensic application
… review of the various commercially available milling devices and undertaking some initial experimentation. The mechanical milling process which results in changing the particle morphology of starting atomised iron powder to flaky shaped powder was investigated in terms of different milling …
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A Dynamic Modeling Approach to the Optimal Design of Nonuniform Chip Loading in Face Milling
… the dynamic performance of the multi-tooth face milling process is studied. The chip loading pattern is considered as the design parameter, and the consequences of nonuniform chip loading obtained by uneven insert spacing design and varying spindle speed design are investigated. The dynamic …
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Assessment of nanocomposites vs. amorphous solid dispersions for dissolution enhancement of bcs class ii drugs
… to achieve three major objectives: (1) develop a processing-formulation understanding of wet media milling process for fast-efficient production of drug nanoparticles in stable nanosuspension form, (2) elucidate the impact of various classes dispersants on drug release rate and mechanisms during …
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Titanium alloy powder production from waste metal
… to powder using the hydride-dehydride (HDH) process. The focus of this project is directed at this approach where a ball milling process is used to simultaneously hydrogenate and crush the titanium turnings into titanium hydride powder.
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Analytical and experimental study of the effect of cutting tool microgeometry on the impact resistance of milling tools
… a two-part investigation into the ability of a milling tool cutting insert to resist the impacts that occur during the milling process, with respect to the cutting edge microgeometry. The first part of this thesis contains a mathematical model that was used to predict the cutting forces acting …
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A framework of computer-aided short-run SPC planning
… extensive preliminary analyses based on the process factor properties and application are proposed to be applied first. The end milling process is used to illustrate the proposed method, and data collected from industry is used to demonstrate the statistical analysis. To improve the …
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