The Effect of Root Face Height and width of the Anvil Heating Plate of Hot-Gas Welding on Bending Strength of Hdpe Sheet

Ahmad fikri fahruddin; Agus  Setiawan; Listiyono  Listiyono; Mohammad sukri  mustapa

doi:10.70822/evrmata.vi.15

Authors

Ahmad fikri fahruddin State Polytechnic of Malang
Agus Setiawan State Polytechnic of Malang
Listiyono Listiyono State Polytechnic of Malang
Mohammad sukri mustapa Universiti tun hussein onn malaysia

DOI:

https://doi.org/10.70822/evrmata.vi.15

Keywords:

hot-gas welding, bending strength, heater width, hdpe sheet, root face height

Abstract

Hot-Gas Welding is a welding process that is widely used in plastic materials. In previous studies, there was a phenomenon that occurred, namely the connection of the base material before the welding process which affected the bending strength of HDPE sheets. The purpose of this study was to determine the effect of variations in root face height and width of the anvil heating plate on bending strength, and also to determine the interaction of the two variables. The method used in this study was experimental. The hot-gas welding process, by varying two independent variables, namely root face height 0 mm, 0.8 mm, 1.6 mm, 2.4 mm and anvil heating plate width of 10 mm, 15 mm, and 20 mm, with controlled variables HDPE material with 5 mm thick, HDPE filler with 4 mm thick, hot gas temperature 250 ℃, single v bevel shape, anvil plate temperature 150 ℃ and v grove angle 60º. The results of this study indicate that the root face height and width of the anvil heating plate affect the bending strength of hot-gas welding HDPE sheets. The maximum value of bending strength is 47.14 Mpa or 85.32% of the bending strength of the parent material. The maximum bending strength value is obtained from the interaction of root face height of 2.4mm and anvil heating plate width of 20mm. Weld defects in the highest bending strength results were identified the least.

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