Investigation of Single-pass Double-pass Techniques on Friction Stir Welding of Aluminium

The aim of this research is to study the effects of single-pass/ double-pass techniques on friction stir welding of aluminium. Two pieces of AA1100 with thickness of 6.0 mm were friction stir welded using a CNC milling machine at rotational speeds of 1400 rpm, 1600 rpm and 1800 rpm respectively for...

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Main Authors: N. A. A., Sathari, L. H., Shah, A. R., Razali
Format: Article
Language:English
Published: Penerbit Universiti Malaysia Pahang 2014
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/7965/
http://umpir.ump.edu.my/id/eprint/7965/1/%282014%29_Investigation_of_single-pass_double-pass_techniques_on_friction_stir_welding_of_aluminium.pdf
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author N. A. A., Sathari
L. H., Shah
A. R., Razali
author_facet N. A. A., Sathari
L. H., Shah
A. R., Razali
author_sort N. A. A., Sathari
building UMP Institutional Repository
collection Online Access
description The aim of this research is to study the effects of single-pass/ double-pass techniques on friction stir welding of aluminium. Two pieces of AA1100 with thickness of 6.0 mm were friction stir welded using a CNC milling machine at rotational speeds of 1400 rpm, 1600 rpm and 1800 rpm respectively for single-pass and double-pass. Microstructure observations of welded area were studied using optical microscope. The specimens were tested by using tensile test and Vickers hardness test to evaluate its mechanical properties. Results indicated that at low rotational speed, defects such as ‘surface lack of fill’ and tunnel in the welded area contributed to the decreases in mechanical properties. Welded specimens using double-pass techniques show increasing value of tensile strength and hardness value. From the results obtained, the best parameters of FSW welded aluminium AA1100 plate were using double-pass techniques with rotational speed of 1800 rpm with hardness of 56.38 HV and 107.65 Mpa strength.
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spelling ump-79652018-01-10T03:27:54Z http://umpir.ump.edu.my/id/eprint/7965/ Investigation of Single-pass Double-pass Techniques on Friction Stir Welding of Aluminium N. A. A., Sathari L. H., Shah A. R., Razali TJ Mechanical engineering and machinery The aim of this research is to study the effects of single-pass/ double-pass techniques on friction stir welding of aluminium. Two pieces of AA1100 with thickness of 6.0 mm were friction stir welded using a CNC milling machine at rotational speeds of 1400 rpm, 1600 rpm and 1800 rpm respectively for single-pass and double-pass. Microstructure observations of welded area were studied using optical microscope. The specimens were tested by using tensile test and Vickers hardness test to evaluate its mechanical properties. Results indicated that at low rotational speed, defects such as ‘surface lack of fill’ and tunnel in the welded area contributed to the decreases in mechanical properties. Welded specimens using double-pass techniques show increasing value of tensile strength and hardness value. From the results obtained, the best parameters of FSW welded aluminium AA1100 plate were using double-pass techniques with rotational speed of 1800 rpm with hardness of 56.38 HV and 107.65 Mpa strength. Penerbit Universiti Malaysia Pahang 2014-12 Article NonPeerReviewed application/pdf en cc_by http://umpir.ump.edu.my/id/eprint/7965/1/%282014%29_Investigation_of_single-pass_double-pass_techniques_on_friction_stir_welding_of_aluminium.pdf N. A. A., Sathari and L. H., Shah and A. R., Razali (2014) Investigation of Single-pass Double-pass Techniques on Friction Stir Welding of Aluminium. Journal of Mechanical Engineering and Sciences (JMES) , 7. pp. 1053-1061. ISSN 2289-4659 (print); 2231-8380 (online). (Published) http://dx.doi.org/10.15282/jmes.7.2014.4.0102 DOI: 10.15282/jmes.7.2014.4.0102
spellingShingle TJ Mechanical engineering and machinery
N. A. A., Sathari
L. H., Shah
A. R., Razali
Investigation of Single-pass Double-pass Techniques on Friction Stir Welding of Aluminium
title Investigation of Single-pass Double-pass Techniques on Friction Stir Welding of Aluminium
title_full Investigation of Single-pass Double-pass Techniques on Friction Stir Welding of Aluminium
title_fullStr Investigation of Single-pass Double-pass Techniques on Friction Stir Welding of Aluminium
title_full_unstemmed Investigation of Single-pass Double-pass Techniques on Friction Stir Welding of Aluminium
title_short Investigation of Single-pass Double-pass Techniques on Friction Stir Welding of Aluminium
title_sort investigation of single-pass double-pass techniques on friction stir welding of aluminium
topic TJ Mechanical engineering and machinery
url http://umpir.ump.edu.my/id/eprint/7965/
http://umpir.ump.edu.my/id/eprint/7965/
http://umpir.ump.edu.my/id/eprint/7965/
http://umpir.ump.edu.my/id/eprint/7965/1/%282014%29_Investigation_of_single-pass_double-pass_techniques_on_friction_stir_welding_of_aluminium.pdf