The insufficient entanglement of the molecular chains and the stress amplification at the v-notch of a weld line compromise the mechanical strength of a plastic product, also in the micro scale. To investigate the influence of process parameters on the weld lines formation, a special micro cavity was designed and manufactured by µEDM (Electro Discharge Machining). Weld lines were quantitatively characterized both in the two-dimensional (direction and position) and three-dimensional range (surface topography characterization). Results showed that shape and position of weld lines are mainly influenced by mold temperature and injection speed.
|Title of host publication||Proceedings of the Society of Plastics Engineers Annual Technical Conference (ANTEC)|
|Publication status||Published - 2007|
|Event||Society of Plastics Engineers Annual Technical Conference (ANTEC) - Cincinnati (Ohio, US), United States|
Duration: 6 May 2007 → 11 May 2007
|Conference||Society of Plastics Engineers Annual Technical Conference (ANTEC)|
|City||Cincinnati (Ohio, US)|
|Period||06/05/2007 → 11/05/2007|