Study of the Pinpoint Injection Gate with the Aid of Computer Injection Simulation

Paper #:
  • 2012-36-0547

Published:
  • 2012-10-02
DOI:
  • 10.4271/2012-36-0547
Citation:
Pastorelli, P. and Sacchelli, C., "Study of the Pinpoint Injection Gate with the Aid of Computer Injection Simulation," SAE Technical Paper 2012-36-0547, 2012, doi:10.4271/2012-36-0547.
Pages:
8
Abstract:
On an injection mold, the runner system is divided in: main runner, secondary distribution runners and injection gates. As for the injection gates, one of the most widely used designs is the pinpoint gate, for being simple and leaving small marks on the injected part. In the literature, the authors diverge for the values for the optimization of the gate, recommending further studies for each application. On that note, the objective of this study is to analyze through CAE the values recommended for the pinpoint gate in order to obtain the optimized injection process, varying the material, shape and thickness of the product. At the end of the study, a reference chart will be presented with the gate dimensions that were the most efficient in the computer simulation for each type of part, to aid in the project of future injection molds.
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