Residual stresses in injection molded products

Title

Residual stresses in injection molded products

 Author

Jansen, K.M.B.

Faculty

Industrial Design Engineering

 Department

Design Engineering

 Date

2015-12-31

 Abstract

During the molding process residual stresses are formed due to thermal contraction during cooling as well as the local pressure history during solidification. In this paper a simple analytical model is reviewed which relates residual stresses, product shrinkage as well as warpage to the temperature and pressure histories during molding. Precise excimer laser layer removal measurements were performed to verify the predicted residual stress distributions. In addition, detailed shrinkage and warpage measurements on a large series of polymers and for different molding conditions were performed and are shown to compare well with the model predictions.

 To reference this document use:

http://resolver.tudelft.nl/uuid:8d6ccb7d-6b1d-479a-8b73-227cd0b8ca3a

 Source

GT 70; GT conference proceedings Polymer Processing with Resulting Morphology and Properties; Feet in the Present and Eyes at the Future; Salerno (Italy), 15-17 Oct. 2015; Authors version

 Part of collection

Institutional Repository

 Document type

conference paper

 Rights

(c) 2015 Jansen, K.M.B.
Files
PDF 321215.pdf 533.42 KB
Close viewer