The preheating effect of mild steel layers deposited using SMAW at 100 A and 70 A

Md Idriss, Ahmed Nazrin and Maleque, Md. Abdul and Kamdi, Zakiah and Muhammad, Noorhafiza and Azhari, Azmir (2024) The preheating effect of mild steel layers deposited using SMAW at 100 A and 70 A. Journal of Advanced Research in Applied Mechanics, 119 (1). pp. 112-120. E-ISSN 2289-7895

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Abstract

In surface melting, preheating temperature is generally caused by the heat conduction through the substrate ahead of the molten pool and their presence help to increase the material dissolution. In this work comparative study was conducted to study the melt features of two samples produced at 100 A and 70 A using the shielded metal arc welding (SMAW) process. The effect of the preheating at 100 A and 70 A on the defects, melt dimensions, surface roughness, deposition rates and losses between samples were examined. It was found that all samples were free from crack, undercutting or lack of fusion suggesting selected processing conditions and material were successfully employed to hinder the problems. The clad at 100 A was associated with higher preheating temperatures and explained the reason to ease melt dissolution for finer rippling marks and surface roughness. The work demonstrated enormous spatter which was related to burning of the electrode coating and metal evaporation that had brought the deposition rate at 100 A similar at 0.15 g/sec to the low spatter 70 A track. Low heat input can be the foundation for building high clad thickness and more dilution through high energy input is preferable for joining.

Item Type:	Article (Journal)
Uncontrolled Keywords:	Mild steel; E6013; SMAW; preheat
Subjects:	T Technology > T Technology (General) > T11.95 Industrial directories T Technology > TA Engineering (General). Civil engineering (General) > TA401 Materials of engineering and construction T Technology > TN Mining engineering. Metallurgy > TN600 Metallurgy T Technology > TS Manufactures > TS200 Metal manufactures. Metalworking
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering Kulliyyah of Engineering
Depositing User:	Prof Dr. Md Abdul Maleque
Date Deposited:	22 Aug 2024 11:30
Last Modified:	22 Aug 2024 15:00
URI:	http://irep.iium.edu.my/id/eprint/114004

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