Optimisation of the rotary friction welding process of titanium alloy rods

This paper presents a study on the performance behaviour of friction welded titanium alloy rods. The Ti6Al4V alloy rods were friction welded with continuous-drive friction welding using different combinations of process parameters. The welding speed ranging from 1600 to 2700 RPM and the applied pres...

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Autores principales:	Zulu Mthobisi, Mashinini Madindwa
Formato:	article
Lenguaje:	EN FR
Publicado:	EDP Sciences 2021
Materias:	Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/244aafc7366a48e582923dfd9148bd06
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id	oai:doaj.org-article:244aafc7366a48e582923dfd9148bd06
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spelling	oai:doaj.org-article:244aafc7366a48e582923dfd9148bd062021-12-02T17:13:35ZOptimisation of the rotary friction welding process of titanium alloy rods2261-236X10.1051/matecconf/202134700002https://doaj.org/article/244aafc7366a48e582923dfd9148bd062021-01-01T00:00:00Zhttps://www.matec-conferences.org/articles/matecconf/pdf/2021/16/matecconf_sacam21_00002.pdfhttps://doaj.org/toc/2261-236XThis paper presents a study on the performance behaviour of friction welded titanium alloy rods. The Ti6Al4V alloy rods were friction welded with continuous-drive friction welding using different combinations of process parameters. The welding speed ranging from 1600 to 2700 RPM and the applied pressure ranging from 25 to 140 MPa were utilized for the welding process. The weld joints and the parent material were examined for microstructure characterisation, Vickers hardness and tensile properties. The microstructure of the weld joint revealed fine equiaxed grains with complete recrystallization. The presence of martensitic grains was obtained at process parameter combinations of low welding speed and high pressure. The tensile tests conducted revealed that the weld joints of low speed and high pressure had improved tensile properties when compared to that of the parent material. The ultimate tensile strength of 1040 MPa with the elongation of 26.5 % was obtained at a speed of 1900 RPM and 80 MPa pressure. The micro-hardness tests revealed an increase in hardness across all the weld zones when compared to the parent material, with the maximum hardness obtained at the weld nugget. Further study was conducted to evaluate the effect of parameters on the weld joint integrity.Zulu MthobisiMashinini MadindwaEDP SciencesarticleEngineering (General). Civil engineering (General)TA1-2040ENFRMATEC Web of Conferences, Vol 347, p 00002 (2021)
institution	DOAJ
collection	DOAJ
language	EN FR
topic	Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Engineering (General). Civil engineering (General) TA1-2040 Zulu Mthobisi Mashinini Madindwa Optimisation of the rotary friction welding process of titanium alloy rods
description	This paper presents a study on the performance behaviour of friction welded titanium alloy rods. The Ti6Al4V alloy rods were friction welded with continuous-drive friction welding using different combinations of process parameters. The welding speed ranging from 1600 to 2700 RPM and the applied pressure ranging from 25 to 140 MPa were utilized for the welding process. The weld joints and the parent material were examined for microstructure characterisation, Vickers hardness and tensile properties. The microstructure of the weld joint revealed fine equiaxed grains with complete recrystallization. The presence of martensitic grains was obtained at process parameter combinations of low welding speed and high pressure. The tensile tests conducted revealed that the weld joints of low speed and high pressure had improved tensile properties when compared to that of the parent material. The ultimate tensile strength of 1040 MPa with the elongation of 26.5 % was obtained at a speed of 1900 RPM and 80 MPa pressure. The micro-hardness tests revealed an increase in hardness across all the weld zones when compared to the parent material, with the maximum hardness obtained at the weld nugget. Further study was conducted to evaluate the effect of parameters on the weld joint integrity.
format	article
author	Zulu Mthobisi Mashinini Madindwa
author_facet	Zulu Mthobisi Mashinini Madindwa
author_sort	Zulu Mthobisi
title	Optimisation of the rotary friction welding process of titanium alloy rods
title_short	Optimisation of the rotary friction welding process of titanium alloy rods
title_full	Optimisation of the rotary friction welding process of titanium alloy rods
title_fullStr	Optimisation of the rotary friction welding process of titanium alloy rods
title_full_unstemmed	Optimisation of the rotary friction welding process of titanium alloy rods
title_sort	optimisation of the rotary friction welding process of titanium alloy rods
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/244aafc7366a48e582923dfd9148bd06
work_keys_str_mv	AT zulumthobisi optimisationoftherotaryfrictionweldingprocessoftitaniumalloyrods AT mashininimadindwa optimisationoftherotaryfrictionweldingprocessoftitaniumalloyrods
_version_	1718381309777149952

Optimisation of the rotary friction welding process of titanium alloy rods

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