Realization and Experimental Analysis of Electron Beam Surfi-Sculpt on Ti-6Al-4V Alloy

The realization method of electron beam surfi-sculpt on Ti-6Al-4V alloy was studied. Surfi-sculpt could be obtained by tailored scanning waveform based on the new scanning control system, and then the protrusions with no less than 2 mm in height were got on the metal surface. By the method, the different profiles of the protrusions were tried from different scanning waveforms and frequencies and the microstructure of protrusions was analyzed. The results show that six lines meeting waveform is the best way to get protrusions, while proper frequency is also a key factor to realize the surfi-sculpt process. The microstructure of the protrusion could be divided into four parts, which are edge zone, central zone, HAZ and base metal.