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Injection Moulding: Evaluation of Appropriate Melt Injection Points for the Gas Injection Technique
Author(s) -
Heim HansPeter
Publication year - 2002
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.200290000
Subject(s) - materials science , injection moulding , penetration (warfare) , mechanical engineering , finite element method , composite material , engineering drawing , structural engineering , engineering , operations research
In gas assisted injection moulding the melt front advancement has a considerable effect on the gas penetration. The evaluation of an appropriate melt filling is an important step to avoid instabilities in the process sequence. Taking a sample moulded part a procedure is presented that enables the part designer to evaluate required melt and gas injection points according to the gas injection technique. Using finite element simulations, different calculations for the melt front advancement lead to the correct gate location.Presentation of different degrees of filling for the optimised article geometry.