RT Journal Article
SR Electronic
A1 Raz, Karel
A1 Zahalka, Martin
A1 Chval, Zdenek
A1 Kucerova, Ludmila
T1 Analysis of Weld Line Influence on Strength of Nylon Parts
JF Manufacturing Technology Journal
YR 2017
VO 17
IS 4
SP 561
OP 565
DO 10.21062/ujep/x.2017/a/1213-2489/MT/17/4/561
UL https://journalmt.com/artkey/mft-201704-0026.php
AB Main aim of this article is description of weld line influence on mechanical properties of plastic parts. Special design of mold was created for this research. This mold is able to create specimens with and without weld lines. These specimens undergone tensile test according standard ASTM D638 with different results. Strength and strain results were compared for both types of specimens. Nylon PA6 without any internal reinforcement was used as reference material during testing. Both specimens were investigated also by microscope in order to see composition of weld line and plastic material. Microstructure showed geometry of weld line and also fracture surfaces indicated presence of plastic deformation