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Quantifying A Key Injection Molding Attribute Defect, Kristopher Bryan Horton
Quantifying A Key Injection Molding Attribute Defect, Kristopher Bryan Horton
Masters Theses
A mounting demand for high quality, low cost plastic injection molded products brings with it goals such as low or even zero defects. In order to achieve these types of "world class" expectations, resources are used to monitor and control variable data such as cycle time, part weight or dimensions. Despite this emphasis on variable data, parts are often rejected based on attribute molding defects such as sink marks or splay that are measured by subjective criteria and therefore difficult to control. Appearance of a part once considered acceptable may no longer be, due to changing expectations or subjective interpretation …