Internal Fiber Structure of a High-Performing, Additively Manufactured Injection Molding Insert

Thomas Hofstätter*, Sina Baier, Camilla H. Trinderup, Carsten Gundlach, David B. Pedersen, Guido Tosello, Hans N Hansen

*Corresponding author for this work

Research output: Contribution to journalConference articleResearchpeer-review

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A standard mold is equipped with additively manufactured inserts in a rectangular shape produced with vat photo polymerization. While the lifetime compared to conventional materials such as brass, steel, and aluminum is reduced, the prototyping and design phase can be shortened significantly by using flexible and cost-effective additive manufacturing technologies. Higher production volumes still exceed the capability of additively manufactured inserts, which are overruled by the stronger performance of less-flexible but mechanically advanced materials. In this contribution, the internal structure of a high-performing, fiber-reinforced injection molding insert has been analyzed. The insert reached a statistically proven and reproducible lifetime of 4,500 shots, which significantly outperforms any other previously published additively manufactured inserts. Computer tomography, tensile tests and life cycle analysis have been performed in order to provide an understanding of the internal structure of the fiber-reinforced, additively manufactured injection molding inserts.
Original languageEnglish
Article number030054
JournalA I P Conference Proceedings Series
Number of pages5
Publication statusPublished - 2018
Event34th International Conference of the Polymer Processing Society - Taipei, Taiwan, Province of China
Duration: 21 May 201825 May 2018


Conference34th International Conference of the Polymer Processing Society
CountryTaiwan, Province of China


  • Additive Manufacturing
  • Injection Molding
  • Inserts
  • Computed Tomography
  • Fiber-Reinforcement

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