Open AccessAffecting the Ageing Behaviour of Injection-Moulded Microparts Using Variothermal Mould Tempering
Author(s) -
Steve Meister,
Dietmar Drummer
Publication year - 2013
Publication title -
advances in mechanical engineering/advances in mechanical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.318
H-Index - 40
eISSN - 1687-8140
pISSN - 1687-8132
DOI - 10.1155/2013/407964
Subject(s) - ageing , tempering , materials science , ultimate tensile strength , composite material , injection moulding , process (computing) , polymer , computer science , genetics , biology , operating system
The fast cooling of the melt in an injection moulding process for manufacturing polymer microparts can lead to a modified inner structure, resulting in minor mechanical properties. Furthermore, the ageing can be also dependent on the process-induced properties. The results indicate that especially physical ageing processes occur in parts with unpropitious inner properties. Chemical ageing processes seem to occur independently of the process conditions in microparts. Tensile tests indicate that a process-induced favoured morphology can reduce the ageing-based change of mechanical properties