Image Theses and Dissertations The effects of cold work and subsequent annealing upon the microstructure and related magnetic properties of 82 Co-12 Fe-6 Au alloy Strip samples of 82% Co - 12% Fe - 6% Au alloy were solution annealed and quenched to produce a supersaturated structure. The samples were then sold worked various amounts by rolling. Quantitative metallography, electron microscopy, and magnetic tests ere used to determine the effects of cold work and subsquent annealing upon structure and related magnetic properties. The primary aim of this thesis is to investigate the structural changes which cause these magnetic property changes. View Item
Image Theses and Dissertations The reliability of simple progressive dies The stamping process, of which the punching process is a major division, is one of the most important metal parts production methods in industry. Punching dies are the heart of the punching process. Die performance, as measured by the number of strokes between sharpenings and/or repairs, determines the important per part costs of die depletion and maintenance. Existing quantitative studies are principally on tool wear and punchability. View Item
Image Theses and Dissertations The effect of cryogenic treatment on the performance of high speed steel lathe tools An analysis of the effect of cryogenic treatment on the performance of a high speed steel lathetool is reported herein. The average crater wear areas for different cutting conditions are measured and are used as the parameter to compare the performance criteria of the tools treated for different cryogenic heat treatments. View Item
Image Theses and Dissertations Solid state miniature bonding with a primary explosive Lead azide was mixed with a squeegee screening vehicle and used to produce miniature gold-tantalum and copper-nickel bonds, typically 0.125" by 0.187" in size. A linear relationship between the detonation velocity and density of the explosive material was obtained experimentally. View Item
Image Theses and Dissertations On the hypothesis that a direct correlation exists between methods changes and related productivity changes in non machine-controlled work situations This hypothesis: a direct correlation exists between methods changes and related productivity changes in non machine-controlled work situations, appeared to be at the root of many problems in applied work measurement. Therefore, the author decided to conduct an objective, quantitative analysis of its validity. View Item
Image Theses and Dissertations The utility of information a method of evaluation The fundamental relationships among the design parameters of an information system and the utility of the information that a system produces are analyzed in an effort to develop a methodology for measuring the utility of information. The utility of the information is defined as a measure of the effectiveness with which the information can be employed to attain the objectives of the using organization. View Item
Image Theses and Dissertations An investigation into the output distributions of gert networks by the use of simulation The purpose of this research was to further the investigation into GERT output distributions. From the family of GERT networks containing only Exclusive-Or nodes, a generally applicable network form was chosen for simulation. A generalized computer program was written to simulate any specific network of this form. View Item
Image Theses and Dissertations Application of a simulator for short term forecasting in a high volume multi-product production line The solutions to the problems of production forecasting, scheduling, and in-process inventory control for high volume multi-product manufacturing lines are not readily available in current industrial literature. This study proposes simulation as a general approach to solving these problems and proceeds to develop a simulator which is applied to just such a high volume line. View Item
Image Theses and Dissertations Utility sub-systems in the building industry The building industry is perhaps the most fragmented large industrial complex in the country today. Consumers are expressing needs for faster delivery for more functional and sophisticated space at more reasonalble prices. At the same time, the industry in itself is faced with growing internal problems which are making it increasingly more difficult to perform even as well as in the past. This study investigates the area of utility sub-systems in the building industry. View Item
Image Theses and Dissertations The effects of stabilizer additives on the microstructure and properties of electroless copper deposite The microstructure and physical properties of copper deposits from electroless solutions with different stabilizing agents were studied. View Item
Image Theses and Dissertations The effect of austenite grain size on microcracking in a martens itic fe-1.22c alloy and 52100 steel The effect of austenitic grain size on microcracking of martensite in an Fe-1.22C alloy and a 52100 commercial bearing alloy has been investigated. Two locations of microcracks were observed in this investigation. View Item
Image Theses and Dissertations The FCC to BCC transformation in iron-nickel alloys containing between 7 and 25 percent nickel The microstructural and crystallographic chracteristics of Fe-N1 "massive" martensite" has been studied by metallography, X-ray diffraction, and transmission electron microscopy. View Item
Image Theses and Dissertations The effects of cold work and subsequent annealing upon the microstructure and magnetic properties of zr-doped 6-80 molybdenum permalloy An alloy containing 80.0% Ni, 12.65% Fe, 6.74% Mo, 0.36% Zr, and 0.25% Mn by weight was cast, solution annealed, and cold rolled into thin strips reduced in area by 0, 50, 75, and 90%. In addition samples of each worked condition were annealed to produce recrystallized and aged structures. Light metallography, electron microscopy, microprobe analysis, and magnetic testing were performed to determine the effects of cold working and annealing upon the microstructure and magnetic properties of the alloy. View Item
Image Theses and Dissertations An investigation of the relationship between manufacturing policies and plant layout in a job shop Utilizing CRAFT an optimum plant layout with regard to all products manufactured can be realized. In addition, two manufacturing policies; related to production and inventory control, will be investigated with respect to the effect of said policies on plant layout. View Item
Image Theses and Dissertations A study of lead thin films deposited by the photolytic decomposition of tetrathyllead Thin films of lead deposited by the photolytic decomposition of adsorbed tetraethyllead vapors have been investigated. The nucleation and growth of the photodeposited lead films were found to be similar to other vapor deposited and sputtered films. The films were crystalline with an island structure formed by the coalescence and growth of descrete lead particles. View Item
Image Theses and Dissertations Explosive bonding of metal foils to high alumina ceramic substrates / View Item
Image Theses and Dissertations On the computational efficiencies of the primal-dual algorithm and the uv-method for solving transportation problems Computational efficiencies of the primal-dual algorithm and the uv-method in solving transportation problems are compared in this thesis. A computer program was written in Fortran IV and run on the CDC 6400 system; it generated random problems with integer constants ranging in the size from 5X10 to 30 X 50, and solved them by both methods. View Item
Image Theses and Dissertations Effect of extreme pressure agents in cutting fluid on tool wear and surface finish In this experiment the influence of extreme pressure lubricants is observed on tool wear and surface finish. From this experiment it can be conclued that E. P. agents, namely chlorine and sulfur undoubtedly have effects on both of these characteristics. View Item
Image Theses and Dissertations Variations in mechanical properties and explosively bonded interface structures caused by an explosively generated pressure disturbance through materials with varying controlled grain sizes A primary explosive, lead azide, mixed with a suitable screening vehicle was deposited on the surface of copper and nickel specimens recrystallized to grain sizes between 0.020 MM to 0.25 MM. Measurements of stress vs. strain for different copper and nickel grain sizes and mass ratios indicated that both materials were severely work hardened by the passage of an explosively generated pressure wave. View Item
Image Theses and Dissertations A non-parametric incremental feedback control system for stochastic processes This is a result of an initial investigation to simplify feedback controllers for stochastic processes. The investigation concerns itself with incrimental control as opposed to proportional control. View Item
Image Theses and Dissertations Quantification of intangible factors in product design decisions This paper concerns itself with quantification of the intangible factors in Product Design Decisions where there is one very big supplier with one very big customer and a unique product. The product design is represented as a state diagram, or curve, with Time as one axis and Product or Material State as the other. Industry affects the product design curve with various levels of decisions. This paper describes four of these levels and investigates a case in which three levels are involved. View Item
Image Theses and Dissertations A method of estimating the value of a computer based on-line operations control system in a production shop A simulation program is presented that develops a risk profile of the intended investment. The risk profile is essentially a return on investment probability analysis developed from the estimated distributions of costs, service life and savings of the intended investment in a computer based, on-line system. View Item
Image Theses and Dissertations An investigation of the feasibility of applying linear progamming to assembly line balancing An investigation of the feasibility of applying linear programming to assembly line balancing problems is presented. Salveson and Bowman developed the mathematical models. View Item
Image Theses and Dissertations The effect of tempering on microcracking in a martensitic Fe-1.22c alloy View Item