Analisa Heat Input Pengelasan terhadap Distorsi, Struktur Mikro dan Kekuatan Mekanis Baja A36
Abstract: The minimization of
weld distortion has become an important subject of research in welding. Severe distortion
can cause undesirable influence on the cost of fabrication since additional
work or repair needsto be performed. In addition, distortion also reduce
dimensional accuracy and even loss of structural integrity. The present
investigation aims to reduce welding distortion on A36 steel by controlling
heat input during Metal Inert Gas (MIG) welding. The welding process was
carried out by maintaining constant voltage and current of 23 Volt and 145
Ampere respectively whereas travel speed was varied in the range of 3.9 to 4.9
mm/s giving heat input of 678 to 936 J/mm. Result of this investigation showed
that the welding distortion was achieved at the heat input of 756 J/mm. At this
heat input, the percentage of acicular ferrite is maximized resulting in good
weld impact toughness.
Penulis: Heri Wibowo, M.Noer
Ilman, PriyoTri Iswanto
Kode Jurnal: jptmesindd160654
