Additive Manufacturing

Additive Manufacuring

Additive manufacturing of titanium alloy Ti-6Al-4 V has significantly increased over the past few years, primarily due to its broad application over the conventional manufacturing process for complex and near net shape production. However, difficulties arise while printing complex and huge structures and therefore, the components need a suitable joining process. We study the feasibility of friction stir welding of Ti-6Al-4 V plates made by electron beam melting, performing both microstructural and mechanical analysis.

Columnar-to-equiaxed transition in laser fusion additive manufacturing

Understanding columnar-to-equiaxed transition (CET) is a critical aspect of microstructural evolution in additively manufactured (AM) alloys, since proportions of columnar and equiaxed morphologies impact strength- ductility synergy. Traditional …

Microstructure and fatigue crack growth behavior of heat-treated electron beam melted Ti-6Al-4V alloy

The effect of post-deposition heat treatment on microstructure and fatigue crack growth has been analyzed for electron beam melted Ti-6Al-4V plates. Samples have been heat-treated at temperatures of 950◦C, and subsequently cooled at different cooling …

Experimental investigation on process parameters induced mechanical and microstructural properties for laser powder bed fusion additive manufacturing of SS316L

The effect of energy density on different mechanical, microstructural and surface properties was examined for laser powder bed fusion of additively manufactured stainless steel 316L (AM SS316L). The energy density was varied by changing laser power …

Microstructure engineering during directed energy deposition of Al-0.5Sc-0.5Si using heated build platform

Achieving a specific solidification morphology during the directed energy deposition process can be key to desired properties of the deposited part. The careful control of thermal gradient and cooling rates can be utilized to achieve these grain …

Friction stir welding of additively manufactured Ti-6Al-4V: Microstructure and mechanical properties

Additive manufacturing of titanium alloy Ti-6Al-4V has significantly increased over the past few years, primarily due to its broad application over the conventional manufacturing process for complex and near net shape production. However, …