Abstract
This paper presents an investigation of rotary friction welding of 25.4 mm diameter Ti-6Al-4V rods. The weld process parameters used for this research were rotational speed, axial pressure and forging time. Only relative speed and axial pressure were the varied parameters while the forging time was kept constant. The mechanical properties of the weld joints were analysed and characterized. The results showed that the rotational speed and friction pressure have significant influence on the tensile strength, microstructure and weld integrity. As rotational speed increased heating time also increased in the weld, as a result, greater volume of material was affected by heat resulting in a wider width of the weld joint. Fine microstructure resulted due to an increased rotational speed and frictional pressure respectively. The oxidation and discolouration of welds were also discussed.
| Original language | English |
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| Pages | 103-111 |
| Number of pages | 9 |
| Publication status | Published - 2018 |
| Event | 11th South African Conference on Computational and Applied Mechanics, SACAM 2018 - Vanderbijlpark, South Africa Duration: 17 Sept 2018 → 19 Sept 2018 |
Conference
| Conference | 11th South African Conference on Computational and Applied Mechanics, SACAM 2018 |
|---|---|
| Country/Territory | South Africa |
| City | Vanderbijlpark |
| Period | 17/09/18 → 19/09/18 |
Keywords
- Mechanical properties
- Microstructure
- Process parameters
- Rotary friction welding
- Ti-6Al-4V
ASJC Scopus subject areas
- Mechanical Engineering
- Computational Mechanics