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Articles 1 - 13 of 13
Full-Text Articles in Manufacturing
The Effects Of Build Orientation, Diameter And Printhead Life On The Cylindricity Of Three-Dimensionally Printed Parts, Troy E. Ollison
The Effects Of Build Orientation, Diameter And Printhead Life On The Cylindricity Of Three-Dimensionally Printed Parts, Troy E. Ollison
All-Inclusive List of Electronic Theses and Dissertations
Rapid prototyping (RP) technologies have become more than just a fast and inexpensive way to produce prototypes. Today RP is widely used to produce functional prototypes, end-use parts and tooling as well as visual prototypes. When RP is used for end-use parts with interconnected moving assemblies or for producing metal casting molds which must have sufficient material for machining tolerances, accuracy is very critical. However, in general, accuracy of the finished RP parts is relatively low lll compared to parts produced by traditional manufacturing processes. The understanding of why some of these accuracy differences exist is either unknown or not …
Leanness And Agility In Job Shops: A Framework For A Survey Instrument Developed Using The Delphi Method, Zaki Kuruppalil
Leanness And Agility In Job Shops: A Framework For A Survey Instrument Developed Using The Delphi Method, Zaki Kuruppalil
All-Inclusive List of Electronic Theses and Dissertations
Manufacturers are facing new challenges as competition has become global. Manufacturing companies arc looking for strategies which would help them gain an edge over their competitors. In the United States, lean manufacturing and agile manufacturing have been gaining importance among industries. Agile manufacturing was developed when the United States Department of Defense (DOD) requested Iacocca Institute at Lehigh University to develop a manufacturing framework that could give US companies an edge over their worldwide competitors whereas lean manufacturing has its roots tied to the Toyota Production System (TPS). This raises the questions: what is the clear difference between the two …
Impact Of A Microwave Curing Process On Tensile Strength Of Selected Carbon Fiber Composites, Brian B. Balzer
Impact Of A Microwave Curing Process On Tensile Strength Of Selected Carbon Fiber Composites, Brian B. Balzer
All-Inclusive List of Electronic Theses and Dissertations
The traditional process for curing carbon fiber (CF) composites has been the autoclave system. A review of recent research indicates curing CF composites in a microwave oven has the potential for reducing processing time. The problem statement of the experimental study was that the impact of a microwave curing process on tensile strength of selected CF composite specimens was unknown. The research study describes the statistical procedure and analysis of data to answer the specific question for the experimental trials: What is the effect on the tensile strength of cured CF composite samples due to the relationship of the autoclave …
Case Studies On Usage Of Axiomatic Design Methodology In The U.S. Industries, Alireza Alavizadeh
Case Studies On Usage Of Axiomatic Design Methodology In The U.S. Industries, Alireza Alavizadeh
All-Inclusive List of Electronic Theses and Dissertations
Axiomatic Design, originally developed by Nam Suh, is a design methodology that attempts to systematize the design practices and to provide a basis on which design can be carried out and optimized according to two main axioms, namely, Independence and Information axioms. Although various scholars in both academia and industry have studied the applicability and effectiveness of this methodology, the extent to which Axiomatic Design has been implemented in industry, particularly in the U.S., is unknown. l1l This study was conducted to identify the extent to which Axiomatic Design is known to the U.S. industries. Other purposes of this study …
An Experimental Evaluation Of Performance Variance For Internally Threaded Geometry Related To Extended Tap Wear In Low Carbon Steel, Todd E. Alberts
An Experimental Evaluation Of Performance Variance For Internally Threaded Geometry Related To Extended Tap Wear In Low Carbon Steel, Todd E. Alberts
All-Inclusive List of Electronic Theses and Dissertations
The development of internal threads in a manufactured part is in many cases one of the final operations in the production workflow. Quality issues in thread form development can destroy a part that has previously undergone expensive machining. The issue of tap wear is one of the multi-faceted elements that have a direct correlation on the quality of threaded components. The purpose of this research centers on resultant mechanical pull performance for the stripping of internally threaded geometry in low carbon steel as measured over various increments of the tap cutting life cycle.
An Experimental Comparison Of Dimensional And Strength Characteristics Of American And Chinese Manufactured Fasteners, Michael Bailey Stroup
An Experimental Comparison Of Dimensional And Strength Characteristics Of American And Chinese Manufactured Fasteners, Michael Bailey Stroup
All-Inclusive List of Electronic Theses and Dissertations
This research investigated the quality and strength characteristics ofboth American and Chinese manufactured fasteners. The purpose of this research was to determine if there is a significant statistical difference between both manufacturers dimensional and tensile strength characteristics as to the American National Standards Institute's specified tolerances. The researcher selected the independent samples t-test to analyze the raw data collected from the experiment. SPSS 13.0 statistical analysis software was used to determine the degree of correlation between the independent variables: fastener dimensions, and ultimate tensile strengths. The researcher involved utilizing a calibrated micrometer that was capable to producing measurements to the …
Correlation Of Numerical Ability And Quality Technician Best Performers In Manufacturing Quality Control Applications, Charles Wesley Shelton
Correlation Of Numerical Ability And Quality Technician Best Performers In Manufacturing Quality Control Applications, Charles Wesley Shelton
All-Inclusive List of Electronic Theses and Dissertations
The occupation of Quality Technician has many duties requiring numerical operations. Business and industry place considerable emphasis on numerical ability when evaluating the performance of a Quality Technician. In this study, the numerical ability and performance classification of Quality Technicians were analyzed using a correlation analysis. lll A single case study was used to investigate this relationship. A modified Delphi Method was used to determine characteristics of a Quality Technician. Quality Technicians were evaluated by their direct supervisor and completed a standardized numerical ability test. The evaluations by the supervisor were used to classify each technician based on their performance. …
Knowledge Representation, Organization, And Formalization For Simulation Modeling Of Discrete Manufacturing System, Jung Hung Ma
Knowledge Representation, Organization, And Formalization For Simulation Modeling Of Discrete Manufacturing System, Jung Hung Ma
All-Inclusive List of Electronic Theses and Dissertations
Simulation is an useful tool that helps managers making decision by designing models for real systems. It helps companies to study behaviors of real systems hy analyzing computer models and improve the systems based on the experiments' results. However, cross-domain knowledge requirement and lack of tools facilitate modeling are the main reasons that make industries hesitate to use simulation to assist making decision. This research is an attempt to develop robust knowledge representations for discrete manufacturing system and conceptual simulation model. A modeling methodology was proposed to utilize these knowledge representations (KRs) for developing conceptual simulation models from application domain …
A Case Study On Implementation Of Quality Function Deployment Into The Design Process Of A Small Job Shop, Benjamin A. Thomson
A Case Study On Implementation Of Quality Function Deployment Into The Design Process Of A Small Job Shop, Benjamin A. Thomson
All-Inclusive List of Electronic Theses and Dissertations
The majority of research involving Quality Function Deployment (QFD) was focused on large consumer based companies and not small job shop business-to-business companies. This case study involved the implementation of QFD into the design process at Reynolds & Co., a small job shop in Terre Haute, IN. The specific objectives of the research were to find the QFD concepts that apply to the improvement of Reynolds & Co.'s (small job shop) design process. The next objective was to reduce the average design time associated with Reynolds & Co.'s design process. The final objective of this case study was to reduce …
Comparison Of Sampling Methods For Flatness Evaluation Using Cmm, Ashish Singhal
Comparison Of Sampling Methods For Flatness Evaluation Using Cmm, Ashish Singhal
All-Inclusive List of Electronic Theses and Dissertations
Efficient part feature verification using Coordinate Measuring Machine (CMM) requires efficient sample point selection as well as accurate zone fitting. This work deals with flatness tolerance evaluation and the Least- Square (LS) technique is used to compute tolerance zone. In regard to the sampling strategy there are several methods commonly employed in Coordinate Measuring Machine inspection literature. The appropriate method is selected according to the accuracy requirement, the geometry features of the work piece, and the condition of the machine producing the work piece. This research focuses on the five sampling methods: Hammersley sequence sampling, Halton-Zaremba sequence sampling, Random sampling, …
Combining Systematic Layout Planning And Computer Simulation In The Design Of Manufacturing Facilities, Akintoye M. Akinyoade
Combining Systematic Layout Planning And Computer Simulation In The Design Of Manufacturing Facilities, Akintoye M. Akinyoade
All-Inclusive List of Electronic Theses and Dissertations
In this study, the systematic layout planning (SLP) and computer simulation were combined to improve the layout design of a manufacturing facility using a case study.
A Comparative Study On Projected And Actual Manufacturing Times To Identify The Source Of Customer Delinquency, Zaki Kuruppalil
A Comparative Study On Projected And Actual Manufacturing Times To Identify The Source Of Customer Delinquency, Zaki Kuruppalil
All-Inclusive List of Electronic Theses and Dissertations
This study was an investigation of the projected lead time and the actual lead time for a part manufactured at Tri-Industries Inc., Terre Haute, Indiana. The research was focused on a single part produced in Tri-Industries. The problem was that there is a difference in the projected lead time and the actual lead time of the part under investigation. The actual lead time was longer than projected lead time, which resulted in the company being delinquent in customer delivery. This investigation was conducted to find out the source for customer delinquency for a single part in Tri-Industries. The conclusion was …
The Need For Emphasis On Teaching The Content Of Certain Subject Areas And Teaching Concepts Related To Certain Packaging Industry Job Titles As Perceived By Packaging Professionals In Indiana And The Surrounding States, Marion D. Schafer
All-Inclusive List of Electronic Theses and Dissertations
The study investigates the opinions or packaging professionals about an appropriate curriculum for a Bachelor of Science degree program in packaging. The study was conducted by surveying packaging profossionals randomly seleclcd from the Central Indiana Institute of Packaging Professionals mailing list. This list was made up mostly of Indiana residents but included a few residents from the fhur surrounding slates. The study was initiated as a first step in the process of developing appropri.ite improvements to the curriculum for the Bachelor of Science degree in packaging al Indiana State University. Six packaging job titles and twenty-three su~jcct areas were chosen …