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ITS » Undergraduate Theses » Teknik Perkapalan Ekstensi - S1
Posted by aguss at 16/01/2009 19:12:46  •  8756 Views


STUDI PERBANDINGAN ANTARA PENGELASAN GTAW DAN GMAW PADA ALUMINIUM TYPE 5083 DITINJAU DARI FAKTOR TEKNIS DAN FAKTOR EKONOMIS

COMPARATIVE STUDY BETWEEN GTAW AND GMAW WELDING ON ALUMINIUM-5083 VIEWED FROM TECHNICAL AND ECONOMICAL FACTORS

Author :
Pratama, Muhammad Yahya 




ABSTRAK

Dalam melakukan penyambungan aluminium pada umumnya dilakukan dengan pengelasan gas tungten arc welding GTAW dan gas metal arc welding GMAW. Dengan memvariasi posisi pengelasan penelitian dalam tugas akhir ini untuk mengetahui perbandingan kedua pengelasan bila ditinjau dari faktor teknik dan faktor ekonomis. Faktor teknis meliputi besarnya deformasi cacat yang terjadi di permukaan dan didalam permukaan visual test radiography test dan fracture toughness. Sedangkan faktor ekonomis meliputi besarnya filler metal yang dikonsumsi tiap posisi pengelasan dan besarnya gas mulia inert gas yang digunakan. Dapat diketahui cacat permukaan tidak terjadi pada kedua pengelasan. Hasil visual test lainnya deformasi sudut paling besar terjadi pada GTAW posisi 3G sebesar 07628o. Untuk reinforcement GMAW lebih tinggi dari GTAW yang berukuran rata-rata 25 mm . Dari radiography test cacat didalam permukaan yang melebihi standart terjadi pada GTAW posisi 2G dan 3G yang berupa porosity dan berukuran 7 mm dan 8 mm. Untuk fracture toughness nilai KIC tertinggi pada weld metal dan HAZ adalah GMAW posisi 2G sebesar 16084 Ksi Inch dan 16908 Ksi Inch . Hasil faktor ekonomis pengelasan GMAW posisi 1G paling efisien dengan biaya total Rp. 41214.00.


ABSTRACT

In common welds that capable for joint Aluminium some capable methods are Gas Tungsten Arc Welding GTAW and Gas Metal Arc Welding GMAW. By variation weld position this final assignment objective is to examine comparison between these welds from economical and technical point of view. Technical factor cover its deformation on and sub surface defect visual test radiography test and fracture toughness. However economical factor covers both filler metal magnitude that consumed at all weld position and utilized inert gas. From experiment and calculation defect not occurred at both weld method. Other visual test result shows that the highest deformation occurred at 07628o GTAW 3G position. For reinforcement average value of GMAW is higher than GTAW namely 25 mm . From radiography test standard exceed defect in sub surface occurred at the GTAW. Porosity defect occurred at 2G and 3G position at 7 mm and 8 mm. For fracture toughness the both highest Kic that at weld metal and HAZ in 2G position GMAW of are at 16084 Ksi Inch and 16908 Ksi Inch respectively. The result of economical factor shows that 1G position of GMAW is Rp 41214.00.



KeywordsVisual test, reinforcement, radiography test, porosity, weld metal, heat affected zone, fracture toughness
 
Subject:  Kapal--model
Contributor
  1. Ir. Soeweify, M.Eng
Date Create: 16/01/2009
Type: Text
Format: pdf
Language: Indonesian
Identifier: ITS-Undergraduate-3100008031348
Collection ID: 3100008031348
Call Number: RSPe 623.843 2 Pra s


Source
Undergraduate Theses, Ships Engineering, RSPe 623.843 2 Pra s, 2008

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