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Quality Improvement of an Injection-Molded Product Using Design of Experiments: A Case Study

Summary: [This abstract is based on the authors' abstract.]A case study illustrates the problem of excessive flash on the molded part during an injection molding project. Discussion and input from the mold design team resulted in the development of a four-factor full-factorial design with duplicate measurements to investigate the influence of excessive flashing. Analysis revealed which factors were significant and settings for the factors were determined. Confirmation runs showed the appropriate settings produced molded products with zero flash.

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  • Topics: Design of Experiments, Process Management
  • Keywords: Case study,Design of experiments (DOE),Factorial experiments,Regression analysis,Measurement and control,Metals,Probability charts,Manufacturing process
  • Author: Lin, Tony; Chananda, Belli
  • Journal: Quality Engineering