Operations Research, Systems Engineering and Industrial Engineering Commons^™

Guidelines To Select A Computerized Maintenance Management System, Dattaraj Kamalapurkar

Masters Theses

In today's highly competitive global economy, maintenance personnel are presented with more difficult challenges than at any previous point in time. In order to meet these challenges, many maintenance managers tend to rely . on Computerized Maintenance Management System (CMMS). When properly selected and implemented, CMMS is one of the most powerful cost reduction tools in any organization. However in reality, many CMMS implementations fail rather than achieve success. While there are many contributing factors, one major factor that greatly impacts successful implementation is selecting the right CMMS system. With more than 200 CMMS systems to choose from, selecting the …

Development Of A Statistical Model For Process Control To Eliminate Sink Marks In Injection Molded Products, Kurt Frederick Hayden

Masters Theses

Customer demands for high-quality, defect-free injection-molded products are ever increasing. In order to satisfy these quality requirements, much effort is spent monitoring and controlling variable data such as cycle time, part weight, and dimensions. Attribute defects such as sink or splay are often overlooked in the development of process control systems. However, customers reject products because of these attribute defects. Industrial control systems based upon process variables and product design variables can detect conditions that may result in the molding of products with attribute defects. The systems can then correct the process prior to the molding of these defective products. …

A Method For Classification Analysis On Simultaneous Product Defects, Jason S. Trahan

Masters Theses

There have been many advancements that share similar tools and techniques that help reduce the manufacture of nonconformities. These include computer-aided analysis, design reviews, total quality management, multivariate analysis, process monitoring and control, and root cause analysis to mention a few.

This work details the methodology developed for manufacturing companies to predict attribute defects. Injection molding was used to demonstrate the proposed methodology. Data were collected on a variety of tool design and construction attributes thought to affect the performance of a tool. The independent variables consisted of categorical and numerical data types. The dependent variable was a nominal four-tuple …