Numerical simulation of wax pattern dimensions in investment casting

A. S. Sabau, S. Viswanathan

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Dimensional changes between a pattern die and its corresponding investment casting part occur as a result of complex phenomena such as thermal expansion/contraction and hot deformation (elastic, plastic, and creep) during the processing of the pattern material (wax), mold material (shell), and solidifying alloy. Determining the pattern tooling dimensions is crucial to the dimensional control of the investment casting process. To date, computational methodologies have not been applied to the prediction of dimensional changes in investment castings. This paper deals with the evaluation of wax pattern dimensions, which is one important factor in determining pattern tooling dimensions in investment casting. Cerita 29-51, an industrial wax, is considered in this study. The wax pattern dimensions are determined by considering its thermophysical and thermomechanical properties, restraint of geometrical features by the metal die, and process parameters such as dwell time, platen temperature, injection pressure, and injection temperature.

Original languageEnglish
Title of host publicationProceedings of the Conference on Computational Modeling of Materials, Minerals and Metals Processing
EditorsM. Cross, J.W. Evans, C. Bailey, M. Cross, J.W. Evans, C. Bailey
Pages431-440
Number of pages10
StatePublished - 2001
EventProceedings of Conference on Computational Modeling of Materials, Minerals and Metals Processing - San Diego, CA, United States
Duration: Sep 23 2001Sep 26 2001

Publication series

NameProceedings of the Conference on Computational Modeling of Materials, Minerals and Metals Processing

Conference

ConferenceProceedings of Conference on Computational Modeling of Materials, Minerals and Metals Processing
Country/TerritoryUnited States
CitySan Diego, CA
Period09/23/0109/26/01

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