Abstract

PADILLA, Alfredo; BASELGA, Juan  and  BRAVO, Julio. Comparison of Gauge Deformation Determined by Simulation of the Injection Process With Real Process Values. Inf. tecnol. [online]. 2006, vol.17, n.4, pp.53-58. ISSN 0718-0764.  http://dx.doi.org/10.4067/S0718-07642006000400010.

A comparative study between the actual deformation of a real industrial part obtained by injection moulding and the displacement in the same simulated part has been performed using C-MOLD, with the objective of verifying the predictive capabilities of process simulation tools. The selected part is a gauge, made of polyamide 6/10 reinforced with 50% of fibber glass, that presents soft sink marks in the lateral areas as main defects. Process simulation was initially performed using the process conditions used by the manufacturer and, in a later stage, those conditions were optimised for Engel 125 and 175 injection machines. Using the optimum process parameters a set of parts was manufactured and the deformations were measured in several points located along two parallel longitudinal axis. These deformations were compared with displacement values obtained from simulation. Excellent agreement between the two sets of values was found except in the most external regions of the part.

Keywords : injection; plastics; deformations; CAE tools; process simulation.