Abstract
This paper presents an investigation on the performance of rotary friction welded 25.4 mm diameter Ti-6Al-4V alloy rods. The process parameters used are friction and forging pressure, rotational speed, forging time and upset distance. The heating time was determined by the amount of friction pressure and rotational speed utilised. Visual examination of preliminary weld joints was done which revealed lack of bonding, weld oxidation and discolouration. The final weld joints were examined for mechanical properties. The results revealed that friction welding process parameters have significant influence on the weld joint properties and weld joint integrity. The hardness and ultimate tensile properties of the weld joints varied with the variation in rotational speed and axial pressure. The tensile properties of the weld joints were higher than the parent material at lower rotational speed or higher axial pressure. The weld width was proportional to relative motion and inversely proportional to axial pressure.
| Original language | English |
|---|---|
| Article number | 012012 |
| Journal | IOP Conference Series: Materials Science and Engineering |
| Volume | 430 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2 Oct 2018 |
| Event | 2018 Conference of the South African Advanced Materials Initiative, CoSAAMI 2018 - Vanderbijlpark, South Africa Duration: 23 Oct 2018 → 26 Oct 2018 |
ASJC Scopus subject areas
- General Materials Science
- General Engineering