MECHANICAL PROPERTIES AND POROSITY OF Ti-6Al-4V ALLOY PREPARED BY AM TECHNOLOGY

Abstract

Efficient machining using wire electrical discharge machining (WEDM) technology is a compromise between cutting speed and resulting surface quality. Typical morphology of the surface machined by WEDM shows a plenty of craters caused by electrospark discharges produced during the cutting process. This work is focused on assessing the impact of machine setting parameters on quantitative and qualitative evaluation of the workpiece surface of aluminium alloy AlZn6Mg2Cu. Using metallography, the surface effects arisen during the process of wire spark erosion on cross-sections of preparations were studied. Using local spot EDX microanalysis, the chemical composition of the surfaces of the samples was studied. The attention was also paid to the highest height of profile of the craters, which were studied using 3D filtered images.

Effect of Platform Temperature and Post-Processing Heat Treatment on the Fatigue Life of Additively Manufactured AlSi7Mg Alloy

“…Previous publications studied the mechanical properties of metallic SLM parts, including 316 stainless steel [10,11], Ti6Al4V [12][13][14][15], Inconel 718 [16] and aluminum alloys [3][4][5][6][7][8][9][17][18][19][20][21][22][23][24][25][26][27][28].…”

Influence of Build Orientation, Heat Treatment, and Laser Power on the Hardness of Ti6Al4V Manufactured Using the DMLS Process

“…The only possible answer for these boundary conditions is additive manufacturing technology. The powder of Ti6Al4V alloy is most commonly processed by direct metal laser sintering (DMLS) and selective laser melting (SLM) [1][2][3][4][5][6][7][8][9][10][11].…”

Investigation of the Properties of 316L Stainless Steel after AM and Heat Treatment

“…No internal defects, discontinuities, or large irregular pores are visible on the OM images. Porosity below 0.1% has almost no effect on the resulting mechanical properties [8,11,47,[50][51][52]. The pores that were detected and analyzed were characterized by an optimal spherical shape without significant sharp edges.…”