ANALISIS METODE TEMPER BEAD WELDING MENGGUNAKAN HALF BEAD TECHNIQUE DAN CONTROLLED DEPOSIT WELD PADA MATERIAL SA 387 GRADE 11 SEBAGAI PENGGANTI PWHT

Abstract

The fabrication industry is an effort to produce raw goods into finished goods, PT. X is one
of the fabrication companies engaged in steel fabrication which focuses on working on steel structures,
working on vessels and boilers. Through the production process of large quantities of boiler work after
the welding process there are things that must be considered, one of which is post weld heat treatment
(PWHT). But in fact PWHT has many shortcomings due to several factors such as relatively expensive
costs and long time consuming. Therefore, there is a method that can be used as an alternative to the
post weld heat treatment (PWHT) process, namely the Temper Bead Welding technique, which is able
to provide efficiency and effectiveness in its implementation. Within the framework of this research,
two methods, Half Bead Technique and Controlled Deposit Weld, were analyzed in comparison with
the PWHT method. The welding process applied is Shielded Metal Arc Welding (SMAW), with the
implementation of a series of tests including tensile testing, bending test, hardness test, and
microstructure analysis. The overall mechanical test results meet the predetermined acceptance
criteria for SA 387 Grade 11 materials. From the hardness test results, the results obtained show that
the Half Bead Technique and Controlled Deposit Weld techniques each produce the highest average
value in the Heat Affecte region.