Abstract

The 3D printing is a well-known technology across the world and this is actually changing the manufacturing machining concept as well as opens up the possibility of products based consumers design. The economy and market strategy of the manufacturing sector ison the verge of total remodelling. Within the shadow of 3D printing technology, 4D printing is also gaining interest since it has reversible self-shape transformation capability which mimics biological growth process. This has also a huge implication for tissue engineering and space programs. Here a glimpse of 4D printing technology has been given with a touch of materials like shape memory polymer and hydrogel which are used frequently for 4D technology.

Keywords: 3D printing; Shape memory polymer; Hydrogel