Theses and Dissertations

Date of Award


Document Type


Degree Name

Master of Science (MS)


Mechanical Engineering

First Advisor

Dr. Constantine Tarawneh

Second Advisor

Dr. Kevin Lee

Third Advisor

Dr. Robert Freeman


This study presents a method of detecting flash by using flow simulation along with the mold processing conditions and the DOE analysis values from all input and output parameters that will be calculated. All of this would be completed in order to compare and verify the DOE and simulation results and find out if it can be applied to an actual live production molded part, in this case, the Leap char ribbon. This paper will also describe the scrap issue that is presently happening on this molded part, and what are the options that there is in order to find the most suitable solution for the company. It will explain the experimental trials that were performed in the specimen and the results obtained from the simulation analysis that was computed in the Moldflow software. it would lead benefit of detecting and minimize. The results from the testing will permit to identify the behavior of mold temperature, melt temperature, viscosity and injection speed on pressure and time and by verifying this results with the DOE, will lead us into the road to better select an optimal new resin that will help to solve the flash problem and that is transmitted from the injection mold and confirming if the results can predict if the flash is due to processing condition, the material properties or the mold itself. All the results and possible outcomes would be presented to the company in order for them to decide on whether they want to make the changes to the current injection mold or if the purchase of a complete brand new mold would be necessary.


Copyright 2018 Claudia Lizette Lopez. All Rights Reserved.