Abstract
Tracks of Ti6Al4V powder were deposited
on Ti6Al4V substrate using Laser Metal Deposition
(LMD) process, an Additive Manufacturing (AM)
manufacturing technology, at a laser power and
scanning speed maintained at 1.8 kW and 0.005 m/s
respectively. The powder flow rate and the gas flow rate
were varied to study their effect on the physical,
metallurgical and mechanical properties of the deposits.
The physical properties studied are: the track width, the
track height and the deposit weight. The mechanical
property studied is the Microhardness profiling using
Microhardness indenter at a load of 500g and dwelling
time of 15 μm. The metallurgical property studied is the
microstructure using the Optical microscopy. This study
revealed that as the powder flow rate was increased, the
track width, track height and the deposit weight were
increased while as the powder flow rate was increased,
the track width, track height and the deposit weight
decreased. The results are presented and discussed in
detail.